+What: /sys/bus/pci/drivers/.../bind
+Date: December 2003
+Contact: linux-pci@vger.kernel.org
+Description:
+ Writing a device location to this file will cause
+ the driver to attempt to bind to the device found at
+ this location. This is useful for overriding default
+ bindings. The format for the location is: DDDD:BB:DD.F.
+ That is Domain:Bus:Device.Function and is the same as
+ found in /sys/bus/pci/devices/. For example:
+ # echo 0000:00:19.0 > /sys/bus/pci/drivers/foo/bind
+ (Note: kernels before 2.6.28 may require echo -n).
+
+What: /sys/bus/pci/drivers/.../unbind
+Date: December 2003
+Contact: linux-pci@vger.kernel.org
+Description:
+ Writing a device location to this file will cause the
+ driver to attempt to unbind from the device found at
+ this location. This may be useful when overriding default
+ bindings. The format for the location is: DDDD:BB:DD.F.
+ That is Domain:Bus:Device.Function and is the same as
+ found in /sys/bus/pci/devices/. For example:
+ # echo 0000:00:19.0 > /sys/bus/pci/drivers/foo/unbind
+ (Note: kernels before 2.6.28 may require echo -n).
+
+What: /sys/bus/pci/drivers/.../new_id
+Date: December 2003
+Contact: linux-pci@vger.kernel.org
+Description:
+ Writing a device ID to this file will attempt to
+ dynamically add a new device ID to a PCI device driver.
+ This may allow the driver to support more hardware than
+ was included in the driver's static device ID support
+ table at compile time. The format for the device ID is:
+ VVVV DDDD SVVV SDDD CCCC MMMM PPPP. That is Vendor ID,
+ Device ID, Subsystem Vendor ID, Subsystem Device ID,
+ Class, Class Mask, and Private Driver Data. The Vendor ID
+ and Device ID fields are required, the rest are optional.
+ Upon successfully adding an ID, the driver will probe
+ for the device and attempt to bind to it. For example:
+ # echo "8086 10f5" > /sys/bus/pci/drivers/foo/new_id
+
What: /sys/bus/pci/devices/.../vpd
Date: February 2008
Contact: Ben Hutchings <bhutchings@solarflare.com>
+++ /dev/null
-This README escorted the skystar2-driver rewriting procedure. It describes the
-state of the new flexcop-driver set and some internals are written down here
-too.
-
-This document hopefully describes things about the flexcop and its
-device-offsprings. Goal was to write an easy-to-write and easy-to-read set of
-drivers based on the skystar2.c and other information.
-
-Remark: flexcop-pci.c was a copy of skystar2.c, but every line has been
-touched and rewritten.
-
-History & News
-==============
- 2005-04-01 - correct USB ISOC transfers (thanks to Vadim Catana)
-
-
-
-
-General coding processing
-=========================
-
-We should proceed as follows (as long as no one complains):
-
-0) Think before start writing code!
-
-1) rewriting the skystar2.c with the help of the flexcop register descriptions
-and splitting up the files to a pci-bus-part and a flexcop-part.
-The new driver will be called b2c2-flexcop-pci.ko/b2c2-flexcop-usb.ko for the
-device-specific part and b2c2-flexcop.ko for the common flexcop-functions.
-
-2) Search for errors in the leftover of flexcop-pci.c (compare with pluto2.c
-and other pci drivers)
-
-3) make some beautification (see 'Improvements when rewriting (refactoring) is
-done')
-
-4) Testing the new driver and maybe substitute the skystar2.c with it, to reach
-a wider tester audience.
-
-5) creating an usb-bus-part using the already written flexcop code for the pci
-card.
-
-Idea: create a kernel-object for the flexcop and export all important
-functions. This option saves kernel-memory, but maybe a lot of functions have
-to be exported to kernel namespace.
-
-
-Current situation
-=================
-
-0) Done :)
-1) Done (some minor issues left)
-2) Done
-3) Not ready yet, more information is necessary
-4) next to be done (see the table below)
-5) USB driver is working (yes, there are some minor issues)
-
-What seems to be ready?
------------------------
-
-1) Rewriting
-1a) i2c is cut off from the flexcop-pci.c and seems to work
-1b) moved tuner and demod stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1c) moved lnb and diseqc stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1e) eeprom (reading MAC address)
-1d) sram (no dynamic sll size detection (commented out) (using default as JJ told me))
-1f) misc. register accesses for reading parameters (e.g. resetting, revision)
-1g) pid/mac filter (flexcop-hw-filter.c)
-1i) dvb-stuff initialization in flexcop.c (done)
-1h) dma stuff (now just using the size-irq, instead of all-together, to be done)
-1j) remove flexcop initialization from flexcop-pci.c completely (done)
-1l) use a well working dma IRQ method (done, see 'Known bugs and problems and TODO')
-1k) cleanup flexcop-files (remove unused EXPORT_SYMBOLs, make static from
-non-static where possible, moved code to proper places)
-
-2) Search for errors in the leftover of flexcop-pci.c (partially done)
-5a) add MAC address reading
-5c) feeding of ISOC data to the software demux (format of the isochronous data
-and speed optimization, no real error) (thanks to Vadim Catana)
-
-What to do in the near future?
---------------------------------------
-(no special order here)
-
-5) USB driver
-5b) optimize isoc-transfer (submitting/killing isoc URBs when transfer is starting)
-
-Testing changes
----------------
-
-O = item is working
-P = item is partially working
-X = item is not working
-N = item does not apply here
-<empty field> = item need to be examined
-
- | PCI | USB
-item | mt352 | nxt2002 | stv0299 | mt312 | mt352 | nxt2002 | stv0299 | mt312
--------+-------+---------+---------+-------+-------+---------+---------+-------
-1a) | O | | | | N | N | N | N
-1b) | O | | | | | | O |
-1c) | N | N | | | N | N | O |
-1d) | O | O
-1e) | O | O
-1f) | P
-1g) | O
-1h) | P |
-1i) | O | N
-1j) | O | N
-1l) | O | N
-2) | O | N
-5a) | N | O
-5b)* | N |
-5c) | N | O
-
-* - not done yet
-
-Known bugs and problems and TODO
---------------------------------
-
-1g/h/l) when pid filtering is enabled on the pci card
-
-DMA usage currently:
- The DMA is splitted in 2 equal-sized subbuffers. The Flexcop writes to first
- address and triggers an IRQ when it's full and starts writing to the second
- address. When the second address is full, the IRQ is triggered again, and
- the flexcop writes to first address again, and so on.
- The buffersize of each address is currently 640*188 bytes.
-
- Problem is, when using hw-pid-filtering and doing some low-bandwidth
- operation (like scanning) the buffers won't be filled enough to trigger
- the IRQ. That's why:
-
- When PID filtering is activated, the timer IRQ is used. Every 1.97 ms the IRQ
- is triggered. Is the current write address of DMA1 different to the one
- during the last IRQ, then the data is passed to the demuxer.
-
- There is an additional DMA-IRQ-method: packet count IRQ. This isn't
- implemented correctly yet.
-
- The solution is to disable HW PID filtering, but I don't know how the DVB
- API software demux behaves on slow systems with 45MBit/s TS.
-
-Solved bugs :)
---------------
-1g) pid-filtering (somehow pid index 4 and 5 (EMM_PID and ECM_PID) aren't
-working)
-SOLUTION: also index 0 was affected, because net_translation is done for
-these indexes by default
-
-5b) isochronous transfer does only work in the first attempt (for the Sky2PC
-USB, Air2PC is working) SOLUTION: the flexcop was going asleep and never really
-woke up again (don't know if this need fixes, see
-flexcop-fe-tuner.c:flexcop_sleep)
-
-NEWS: when the driver is loaded and unloaded and loaded again (w/o doing
-anything in the while the driver is loaded the first time), no transfers take
-place anymore.
-
-Improvements when rewriting (refactoring) is done
-=================================================
-
-- split sleeping of the flexcop (misc_204.ACPI3_sig = 1;) from lnb_control
- (enable sleeping for other demods than dvb-s)
-- add support for CableStar (stv0297 Microtune 203x/ALPS) (almost done, incompatibilities with the Nexus-CA)
-
-Debugging
----------
-- add verbose debugging to skystar2.c (dump the reg_dw_data) and compare it
- with this flexcop, this is important, because i2c is now using the
- flexcop_ibi_value union from flexcop-reg.h (do you have a better idea for
- that, please tell us so).
-
-Everything which is identical in the following table, can be put into a common
-flexcop-module.
-
- PCI USB
--------------------------------------------------------------------------------
-Different:
-Register access: accessing IO memory USB control message
-I2C bus: I2C bus of the FC USB control message
-Data transfer: DMA isochronous transfer
-EEPROM transfer: through i2c bus not clear yet
-
-Identical:
-Streaming: accessing registers
-PID Filtering: accessing registers
-Sram destinations: accessing registers
-Tuner/Demod: I2C bus
-DVB-stuff: can be written for common use
-
-Acknowledgements (just for the rewriting part)
-================
-
-Bjarne Steinsbo thought a lot in the first place of the pci part for this code
-sharing idea.
-
-Andreas Oberritter for providing a recent PCI initialization template
-(pluto2.c).
-
-Boleslaw Ciesielski for pointing out a problem with firmware loader.
-
-Vadim Catana for correcting the USB transfer.
-
-comments, critics and ideas to linux-dvb@linuxtv.org.
-How to set up the Technisat devices
-===================================
+How to set up the Technisat/B2C2 Flexcop devices
+================================================
1) Find out what device you have
================================
If the Technisat is the only TV device in your box get rid of unnecessary modules and check this one:
"Multimedia devices" => "Customise analog and hybrid tuner modules to build"
-In this directory uncheck every driver which is activated there.
+In this directory uncheck every driver which is activated there (except "Simple tuner support" for case 9 only).
Then please activate:
2a) Main module part:
a.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters"
-b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card OR
+b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card
+OR
c.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC USB" in case of an USB 1.1 adapter
d.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Enable debug for the B2C2 FlexCop drivers"
Notice: d.) is helpful for troubleshooting
2b) Frontend module part:
-1.) Revision 2.3:
+1.) SkyStar DVB-S Revision 2.3:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink VP310/MT312/ZL10313 based"
-2.) Revision 2.6:
+2.) SkyStar DVB-S Revision 2.6:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0299 based"
-3.) Revision 2.7:
+3.) SkyStar DVB-S Revision 2.7:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Samsung S5H1420 based"
c.)"Multimedia devices" => "Customise DVB frontends" => "Integrant ITD1000 Zero IF tuner for DVB-S/DSS"
d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
-4.) Revision 2.8:
+4.) SkyStar DVB-S Revision 2.8:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24113/CX24128 tuner for DVB-S/DSS"
c.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24123 based"
d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
-5.) DVB-T card:
+5.) AirStar DVB-T card:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink MT352 based"
-6.) DVB-C card:
+6.) CableStar DVB-C card:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0297 based"
-7.) ATSC card 1st generation:
+7.) AirStar ATSC card 1st generation:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Broadcom BCM3510"
-8.) ATSC card 2nd generation:
+8.) AirStar ATSC card 2nd generation:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "NxtWave Communications NXT2002/NXT2004 based"
-c.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise DVB frontends" => "Generic I2C PLL based tuners"
-Author: Uwe Bugla <uwe.bugla@gmx.de> December 2008
+9.) AirStar ATSC card 3rd generation:
+a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
+b.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise analog and hybrid tuner modules to build" => "Simple tuner support"
+
+Author: Uwe Bugla <uwe.bugla@gmx.de> February 2009
Parameters denoted with BOOT are actually interpreted by the boot
loader, and have no meaning to the kernel directly.
Do not modify the syntax of boot loader parameters without extreme
-need or coordination with <Documentation/x86/i386/boot.txt>.
+need or coordination with <Documentation/x86/boot.txt>.
There are also arch-specific kernel-parameters not documented here.
See for example <Documentation/x86/x86_64/boot-options.txt>.
See Documentation/fb/modedb.txt.
vga= [BOOT,X86-32] Select a particular video mode
- See Documentation/x86/i386/boot.txt and
+ See Documentation/x86/boot.txt and
Documentation/svga.txt.
Use vga=ask for menu.
This is actually a boot loader parameter; the value is
gpio_request(gpio + 7, "nCF_SEL");
gpio_direction_output(gpio + 7, 1);
+ /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
+ setup_usb(500, 8);
+
return 0;
}
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
evm_init_i2c();
-
- /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
- setup_usb(500, 8);
}
static __init void davinci_evm_irq_init(void)
.rate = &commonrate,
.lpsc = DAVINCI_LPSC_GPIO,
},
+ {
+ .name = "usb",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_USB,
+ },
{
.name = "AEMIFCLK",
.rate = &commonrate,
#elif defined(CONFIG_USB_MUSB_HOST)
.mode = MUSB_HOST,
#endif
+ .clock = "usb",
.config = &musb_config,
};
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_HIGHMEM
- select CPU_CAVIUM_OCTEON
+ select SYS_HAS_CPU_CAVIUM_OCTEON
help
The Octeon simulator is software performance model of the Cavium
Octeon Processor. It supports simulating Octeon processors on x86
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_HIGHMEM
select SYS_HAS_EARLY_PRINTK
- select CPU_CAVIUM_OCTEON
+ select SYS_HAS_CPU_CAVIUM_OCTEON
select SWAP_IO_SPACE
help
This option supports all of the Octeon reference boards from Cavium
config CPU_CAVIUM_OCTEON
bool "Cavium Octeon processor"
+ depends on SYS_HAS_CPU_CAVIUM_OCTEON
select IRQ_CPU
select IRQ_CPU_OCTEON
select CPU_HAS_PREFETCH
config SYS_HAS_CPU_SB1
bool
+config SYS_HAS_CPU_CAVIUM_OCTEON
+ bool
+
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
config 64BIT
bool "64-bit kernel"
depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
+ select HAVE_SYSCALL_WRAPPERS
help
Select this option if you want to build a 64-bit kernel.
* setup counter 1 (RTC) to tick at full speed
*/
t = 0xffffff;
- while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S) && t--)
+ while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S) && --t)
asm volatile ("nop");
if (!t)
goto cntr_err;
au_sync();
t = 0xffffff;
- while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && t--)
+ while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && --t)
asm volatile ("nop");
if (!t)
goto cntr_err;
au_sync();
t = 0xffffff;
- while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && t--)
+ while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && --t)
asm volatile ("nop");
if (!t)
goto cntr_err;
seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].chip->name);
- seq_printf(p, "-%-8s", irq_desc[i].name);
seq_printf(p, " %s", action->name);
for (action=action->next; action; action = action->next)
#include <linux/module.h>
#include <linux/binfmts.h>
#include <linux/security.h>
+#include <linux/syscalls.h>
#include <linux/compat.h>
#include <linux/vfs.h>
#include <linux/ipc.h>
#define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
#endif
-asmlinkage unsigned long
-sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long fd, unsigned long pgoff)
+SYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len,
+ unsigned long, prot, unsigned long, flags, unsigned long, fd,
+ unsigned long, pgoff)
{
struct file * file = NULL;
unsigned long error;
int rlim_max;
};
-asmlinkage long sys32_truncate64(const char __user * path,
- unsigned long __dummy, int a2, int a3)
+SYSCALL_DEFINE4(32_truncate64, const char __user *, path,
+ unsigned long, __dummy, unsigned long, a2, unsigned long, a3)
{
return sys_truncate(path, merge_64(a2, a3));
}
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
- int a2, int a3)
+SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy,
+ unsigned long, a2, unsigned long, a3)
{
return sys_ftruncate(fd, merge_64(a2, a3));
}
-asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
- unsigned int offset_low, loff_t __user * result,
- unsigned int origin)
+SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,
+ unsigned long, offset_low, loff_t __user *, result,
+ unsigned long, origin)
{
return sys_llseek(fd, offset_high, offset_low, result, origin);
}
lseek back to original location. They fail just like lseek does on
non-seekable files. */
-asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
- size_t count, u32 unused, u64 a4, u64 a5)
+SYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count,
+ unsigned long, unused, unsigned long, a4, unsigned long, a5)
{
return sys_pread64(fd, buf, count, merge_64(a4, a5));
}
-asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
- size_t count, u32 unused, u64 a4, u64 a5)
+SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
+ size_t, count, u32, unused, u64, a4, u64, a5)
{
return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
}
-asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
- struct compat_timespec __user *interval)
+SYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid,
+ struct compat_timespec __user *, interval)
{
struct timespec t;
int ret;
#ifdef CONFIG_SYSVIPC
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
+ unsigned long, ptr, unsigned long, fifth)
{
int version, err;
#else
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
+ u32, ptr, u32 fifth)
{
return -ENOSYS;
}
#endif /* CONFIG_SYSVIPC */
#ifdef CONFIG_MIPS32_N32
-asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
+SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg)
{
/* compat_sys_semctl expects a pointer to union semun */
u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
return compat_sys_semctl(semid, semnum, cmd, uptr);
}
-asmlinkage long sysn32_msgsnd(int msqid, u32 msgp, unsigned msgsz, int msgflg)
+SYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz,
+ int, msgflg)
{
return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp));
}
-asmlinkage long sysn32_msgrcv(int msqid, u32 msgp, size_t msgsz, int msgtyp,
- int msgflg)
+SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz,
+ int, msgtyp, int, msgflg)
{
return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64,
compat_ptr(msgp));
#ifdef CONFIG_SYSCTL_SYSCALL
-asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
{
struct sysctl_args32 tmp;
int error;
return error;
}
+#else
+
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
+{
+ return -ENOSYS;
+}
+
#endif /* CONFIG_SYSCTL_SYSCALL */
-asmlinkage long sys32_newuname(struct new_utsname __user * name)
+SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name)
{
int ret = 0;
return ret;
}
-asmlinkage int sys32_personality(unsigned long personality)
+SYSCALL_DEFINE1(32_personality, unsigned long, personality)
{
int ret;
personality &= 0xffffffff;
extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
-asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
+SYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32)
{
int err;
struct ustat tmp;
return err;
}
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
- s32 count)
+SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
+ compat_off_t __user *, offset, s32, count)
{
mm_segment_t old_fs = get_fs();
int ret;
sys sys_swapon 2
sys sys_reboot 3
sys sys_old_readdir 3
- sys old_mmap 6 /* 4090 */
+ sys sys_mips_mmap 6 /* 4090 */
sys sys_munmap 2
sys sys_truncate 2
sys sys_ftruncate 2
sys sys_sendfile 4
sys sys_ni_syscall 0
sys sys_ni_syscall 0
- sys sys_mmap2 6 /* 4210 */
+ sys sys_mips_mmap2 6 /* 4210 */
sys sys_truncate64 4
sys sys_ftruncate64 4
sys sys_stat64 2
PTR sys_newlstat
PTR sys_poll
PTR sys_lseek
- PTR old_mmap
+ PTR sys_mips_mmap
PTR sys_mprotect /* 5010 */
PTR sys_munmap
PTR sys_brk
PTR sys_newlstat
PTR sys_poll
PTR sys_lseek
- PTR old_mmap
+ PTR sys_mips_mmap
PTR sys_mprotect /* 6010 */
PTR sys_munmap
PTR sys_brk
- PTR sys32_rt_sigaction
- PTR sys32_rt_sigprocmask
+ PTR sys_32_rt_sigaction
+ PTR sys_32_rt_sigprocmask
PTR compat_sys_ioctl /* 6015 */
PTR sys_pread64
PTR sys_pwrite64
PTR compat_sys_setitimer
PTR sys_alarm
PTR sys_getpid
- PTR sys32_sendfile
+ PTR sys_32_sendfile
PTR sys_socket /* 6040 */
PTR sys_connect
PTR sys_accept
PTR sys_exit
PTR compat_sys_wait4
PTR sys_kill /* 6060 */
- PTR sys32_newuname
+ PTR sys_32_newuname
PTR sys_semget
PTR sys_semop
- PTR sysn32_semctl
+ PTR sys_n32_semctl
PTR sys_shmdt /* 6065 */
PTR sys_msgget
- PTR sysn32_msgsnd
- PTR sysn32_msgrcv
+ PTR sys_n32_msgsnd
+ PTR sys_n32_msgrcv
PTR compat_sys_msgctl
PTR compat_sys_fcntl /* 6070 */
PTR sys_flock
PTR sys_getsid
PTR sys_capget
PTR sys_capset
- PTR sys32_rt_sigpending /* 6125 */
+ PTR sys_32_rt_sigpending /* 6125 */
PTR compat_sys_rt_sigtimedwait
- PTR sys32_rt_sigqueueinfo
+ PTR sys_32_rt_sigqueueinfo
PTR sysn32_rt_sigsuspend
PTR sys32_sigaltstack
PTR compat_sys_utime /* 6130 */
PTR sys_mknod
- PTR sys32_personality
- PTR sys32_ustat
+ PTR sys_32_personality
+ PTR sys_32_ustat
PTR compat_sys_statfs
PTR compat_sys_fstatfs /* 6135 */
PTR sys_sysfs
PTR sys_sched_getscheduler
PTR sys_sched_get_priority_max
PTR sys_sched_get_priority_min
- PTR sys32_sched_rr_get_interval /* 6145 */
+ PTR sys_32_sched_rr_get_interval /* 6145 */
PTR sys_mlock
PTR sys_munlock
PTR sys_mlockall
PTR sys_munlockall
PTR sys_vhangup /* 6150 */
PTR sys_pivot_root
- PTR sys32_sysctl
+ PTR sys_32_sysctl
PTR sys_prctl
PTR compat_sys_adjtimex
PTR compat_sys_setrlimit /* 6155 */
PTR sys_olduname
PTR sys_umask /* 4060 */
PTR sys_chroot
- PTR sys32_ustat
+ PTR sys_32_ustat
PTR sys_dup2
PTR sys_getppid
PTR sys_getpgrp /* 4065 */
PTR sys_setsid
- PTR sys32_sigaction
+ PTR sys_32_sigaction
PTR sys_sgetmask
PTR sys_ssetmask
PTR sys_setreuid /* 4070 */
PTR sys_swapon
PTR sys_reboot
PTR compat_sys_old_readdir
- PTR old_mmap /* 4090 */
+ PTR sys_mips_mmap /* 4090 */
PTR sys_munmap
PTR sys_truncate
PTR sys_ftruncate
PTR compat_sys_wait4
PTR sys_swapoff /* 4115 */
PTR compat_sys_sysinfo
- PTR sys32_ipc
+ PTR sys_32_ipc
PTR sys_fsync
PTR sys32_sigreturn
PTR sys32_clone /* 4120 */
PTR sys_setdomainname
- PTR sys32_newuname
+ PTR sys_32_newuname
PTR sys_ni_syscall /* sys_modify_ldt */
PTR compat_sys_adjtimex
PTR sys_mprotect /* 4125 */
PTR sys_fchdir
PTR sys_bdflush
PTR sys_sysfs /* 4135 */
- PTR sys32_personality
+ PTR sys_32_personality
PTR sys_ni_syscall /* for afs_syscall */
PTR sys_setfsuid
PTR sys_setfsgid
- PTR sys32_llseek /* 4140 */
+ PTR sys_32_llseek /* 4140 */
PTR compat_sys_getdents
PTR compat_sys_select
PTR sys_flock
PTR sys_ni_syscall /* 4150 */
PTR sys_getsid
PTR sys_fdatasync
- PTR sys32_sysctl
+ PTR sys_32_sysctl
PTR sys_mlock
PTR sys_munlock /* 4155 */
PTR sys_mlockall
PTR sys_sched_yield
PTR sys_sched_get_priority_max
PTR sys_sched_get_priority_min
- PTR sys32_sched_rr_get_interval /* 4165 */
+ PTR sys_32_sched_rr_get_interval /* 4165 */
PTR compat_sys_nanosleep
PTR sys_mremap
PTR sys_accept
PTR sys_getresgid
PTR sys_prctl
PTR sys32_rt_sigreturn
- PTR sys32_rt_sigaction
- PTR sys32_rt_sigprocmask /* 4195 */
- PTR sys32_rt_sigpending
+ PTR sys_32_rt_sigaction
+ PTR sys_32_rt_sigprocmask /* 4195 */
+ PTR sys_32_rt_sigpending
PTR compat_sys_rt_sigtimedwait
- PTR sys32_rt_sigqueueinfo
+ PTR sys_32_rt_sigqueueinfo
PTR sys32_rt_sigsuspend
- PTR sys32_pread /* 4200 */
- PTR sys32_pwrite
+ PTR sys_32_pread /* 4200 */
+ PTR sys_32_pwrite
PTR sys_chown
PTR sys_getcwd
PTR sys_capget
PTR sys_capset /* 4205 */
PTR sys32_sigaltstack
- PTR sys32_sendfile
+ PTR sys_32_sendfile
PTR sys_ni_syscall
PTR sys_ni_syscall
- PTR sys32_mmap2 /* 4210 */
- PTR sys32_truncate64
- PTR sys32_ftruncate64
+ PTR sys_mips_mmap2 /* 4210 */
+ PTR sys_32_truncate64
+ PTR sys_32_ftruncate64
PTR sys_newstat
PTR sys_newlstat
PTR sys_newfstat /* 4215 */
PTR compat_sys_mq_notify /* 4275 */
PTR compat_sys_mq_getsetattr
PTR sys_ni_syscall /* sys_vserver */
- PTR sys32_waitid
+ PTR sys_32_waitid
PTR sys_ni_syscall /* available, was setaltroot */
PTR sys_add_key /* 4280 */
PTR sys_request_key
#include <linux/ptrace.h>
#include <linux/unistd.h>
#include <linux/compiler.h>
+#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <asm/abi.h>
}
#ifdef CONFIG_TRAD_SIGNALS
-asmlinkage int sys_sigaction(int sig, const struct sigaction __user *act,
- struct sigaction __user *oact)
+SYSCALL_DEFINE3(sigaction, int, sig, const struct sigaction __user *, act,
+ struct sigaction __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
return -ERESTARTNOHAND;
}
-asmlinkage int sys32_sigaction(int sig, const struct sigaction32 __user *act,
- struct sigaction32 __user *oact)
+SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,
+ struct sigaction32 __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
.restart = __NR_O32_restart_syscall
};
-asmlinkage int sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
- struct sigaction32 __user *oact,
- unsigned int sigsetsize)
+SYSCALL_DEFINE4(32_rt_sigaction, int, sig,
+ const struct sigaction32 __user *, act,
+ struct sigaction32 __user *, oact, unsigned int, sigsetsize)
{
struct k_sigaction new_sa, old_sa;
int ret = -EINVAL;
return ret;
}
-asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
- compat_sigset_t __user *oset, unsigned int sigsetsize)
+SYSCALL_DEFINE4(32_rt_sigprocmask, int, how, compat_sigset_t __user *, set,
+ compat_sigset_t __user *, oset, unsigned int, sigsetsize)
{
sigset_t old_set, new_set;
int ret;
return ret;
}
-asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
- unsigned int sigsetsize)
+SYSCALL_DEFINE2(32_rt_sigpending, compat_sigset_t __user *, uset,
+ unsigned int, sigsetsize)
{
int ret;
sigset_t set;
return ret;
}
-asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
+SYSCALL_DEFINE3(32_rt_sigqueueinfo, int, pid, int, sig,
+ compat_siginfo_t __user *, uinfo)
{
siginfo_t info;
int ret;
return ret;
}
-asmlinkage long
-sys32_waitid(int which, compat_pid_t pid,
- compat_siginfo_t __user *uinfo, int options,
- struct compat_rusage __user *uru)
+SYSCALL_DEFINE5(32_waitid, int, which, compat_pid_t, pid,
+ compat_siginfo_t __user *, uinfo, int, options,
+ struct compat_rusage __user *, uru)
{
siginfo_t info;
struct rusage ru;
return error;
}
-asmlinkage unsigned long
-old_mmap(unsigned long addr, unsigned long len, int prot,
- int flags, int fd, off_t offset)
+SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len,
+ unsigned long, prot, unsigned long, flags, unsigned long,
+ fd, off_t, offset)
{
unsigned long result;
return result;
}
-asmlinkage unsigned long
-sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long fd, unsigned long pgoff)
+SYSCALL_DEFINE6(mips_mmap2, unsigned long, addr, unsigned long, len,
+ unsigned long, prot, unsigned long, flags, unsigned long, fd,
+ unsigned long, pgoff)
{
if (pgoff & (~PAGE_MASK >> 12))
return -EINVAL;
/*
* Compacrapability ...
*/
-asmlinkage int sys_uname(struct old_utsname __user * name)
+SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
{
if (name && !copy_to_user(name, utsname(), sizeof (*name)))
return 0;
/*
* Compacrapability ...
*/
-asmlinkage int sys_olduname(struct oldold_utsname __user * name)
+SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
{
int error;
return error;
}
-asmlinkage int sys_set_thread_area(unsigned long addr)
+SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
{
struct thread_info *ti = task_thread_info(current);
return 0;
}
-asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+asmlinkage int _sys_sysmips(long cmd, long arg1, long arg2, long arg3)
{
switch (cmd) {
case MIPS_ATOMIC_SET:
*
* This is really horribly ugly.
*/
-asmlinkage int sys_ipc(unsigned int call, int first, int second,
- unsigned long third, void __user *ptr, long fifth)
+SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, int, second,
+ unsigned long, third, void __user *, ptr, long, fifth)
{
int version, ret;
/*
* No implemented yet ...
*/
-asmlinkage int sys_cachectl(char *addr, int nbytes, int op)
+SYSCALL_DEFINE3(cachectl, char *, addr, int, nbytes, int, op)
{
return -ENOSYS;
}
#include <linux/linkage.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/syscalls.h>
#include <linux/mm.h>
#include <asm/cacheflush.h>
* We could optimize the case where the cache argument is not BCACHE but
* that seems very atypical use ...
*/
-asmlinkage int sys_cacheflush(unsigned long addr,
- unsigned long bytes, unsigned int cache)
+SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes,
+ unsigned int, cache)
{
if (bytes == 0)
return 0;
{
u32 ma, pcila, pciha;
+ /* Hack warning ! The "old" PCI 2.x cell only let us configure the low
+ * 32-bit of incoming PLB addresses. The top 4 bits of the 36-bit
+ * address are actually hard wired to a value that appears to depend
+ * on the specific SoC. For example, it's 0 on 440EP and 1 on 440EPx.
+ *
+ * The trick here is we just crop those top bits and ignore them when
+ * programming the chip. That means the device-tree has to be right
+ * for the specific part used (we don't print a warning if it's wrong
+ * but on the other hand, you'll crash quickly enough), but at least
+ * this code should work whatever the hard coded value is
+ */
+ plb_addr &= 0xffffffffull;
+
+ /* Note: Due to the above hack, the test below doesn't actually test
+ * if you address is above 4G, but it tests that address and
+ * (address + size) are both contained in the same 4G
+ */
if ((plb_addr + size) > 0xffffffffull || !is_power_of_2(size) ||
size < 0x1000 || (plb_addr & (size - 1)) != 0) {
printk(KERN_WARNING "%s: Resource out of range\n",
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
-#include <media/ov772x.h>
#include <media/soc_camera_platform.h>
#include <media/sh_mobile_ceu.h>
#include <video/sh_mobile_lcdc.h>
}
#ifdef CONFIG_I2C
-/* support for the old ncm03j camera */
static unsigned char camera_ncm03j_magic[] =
{
0x87, 0x00, 0x88, 0x08, 0x89, 0x01, 0x8A, 0xE8,
0x63, 0xD4, 0x64, 0xEA, 0xD6, 0x0F,
};
-static int camera_probe(void)
-{
- struct i2c_adapter *a = i2c_get_adapter(0);
- struct i2c_msg msg;
- int ret;
-
- camera_power(1);
- msg.addr = 0x6e;
- msg.buf = camera_ncm03j_magic;
- msg.len = 2;
- msg.flags = 0;
- ret = i2c_transfer(a, &msg, 1);
- camera_power(0);
-
- return ret;
-}
-
static int camera_set_capture(struct soc_camera_platform_info *info,
int enable)
{
.platform_data = &camera_info,
},
};
-
-static int __init camera_setup(void)
-{
- if (camera_probe() > 0)
- platform_device_register(&camera_device);
-
- return 0;
-}
-late_initcall(camera_setup);
-
#endif /* CONFIG_I2C */
-static int ov7725_power(struct device *dev, int mode)
-{
- camera_power(0);
- if (mode)
- camera_power(1);
-
- return 0;
-}
-
-static struct ov772x_camera_info ov7725_info = {
- .buswidth = SOCAM_DATAWIDTH_8,
- .flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
- .link = {
- .power = ov7725_power,
- },
-};
-
static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
.flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_HSYNC_ACTIVE_HIGH |
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_MASTER | SOCAM_DATAWIDTH_8,
&ap325rxa_nor_flash_device,
&lcdc_device,
&ceu_device,
+#ifdef CONFIG_I2C
+ &camera_device,
+#endif
&nand_flash_device,
&sdcard_cn3_device,
};
{
I2C_BOARD_INFO("pcf8563", 0x51),
},
- {
- I2C_BOARD_INFO("ov772x", 0x21),
- .platform_data = &ov7725_info,
- },
};
static struct spi_board_info ap325rxa_spi_devices[] = {
#include <asm/freq.h>
#include <asm/io.h>
-const static int pll1rate[]={1,2,3,4,6,8};
-const static int pfc_divisors[]={1,2,3,4,6,8,12};
+static const int pll1rate[]={1,2,3,4,6,8};
+static const int pfc_divisors[]={1,2,3,4,6,8,12};
#define ifc_divisors pfc_divisors
#if (CONFIG_SH_CLK_MD == 0)
remapping devices.
config DMAR_DEFAULT_ON
- def_bool n
+ def_bool y
prompt "Enable DMA Remapping Devices by default"
depends on DMAR
help
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size);
+
void *
iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
/* Bitmask of CPUs present in the system - exported by i386_syms.c, used
* by scheduler but indexed physically */
-cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
+static cpumask_t voyager_phys_cpu_present_map = CPU_MASK_NONE;
/* The internal functions */
static void send_CPI(__u32 cpuset, __u8 cpi);
/* set up everything for just this CPU, we can alter
* this as we start the other CPUs later */
/* now get the CPU disposition from the extended CMOS */
- cpus_addr(phys_cpu_present_map)[0] =
+ cpus_addr(voyager_phys_cpu_present_map)[0] =
voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK);
- cpus_addr(phys_cpu_present_map)[0] |=
+ cpus_addr(voyager_phys_cpu_present_map)[0] |=
voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8;
- cpus_addr(phys_cpu_present_map)[0] |=
+ cpus_addr(voyager_phys_cpu_present_map)[0] |=
voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
2) << 16;
- cpus_addr(phys_cpu_present_map)[0] |=
+ cpus_addr(voyager_phys_cpu_present_map)[0] |=
voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
3) << 24;
- init_cpu_possible(&phys_cpu_present_map);
- printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n",
- cpus_addr(phys_cpu_present_map)[0]);
+ init_cpu_possible(&voyager_phys_cpu_present_map);
+ printk("VOYAGER SMP: voyager_phys_cpu_present_map = 0x%lx\n",
+ cpus_addr(voyager_phys_cpu_present_map)[0]);
/* Here we set up the VIC to enable SMP */
/* enable the CPIs by writing the base vector to their register */
outb(VIC_DEFAULT_CPI_BASE, VIC_CPI_BASE_REGISTER);
/* now that the cat has probed the Voyager System Bus, sanity
* check the cpu map */
if (((voyager_quad_processors | voyager_extended_vic_processors)
- & cpus_addr(phys_cpu_present_map)[0]) !=
- cpus_addr(phys_cpu_present_map)[0]) {
+ & cpus_addr(voyager_phys_cpu_present_map)[0]) !=
+ cpus_addr(voyager_phys_cpu_present_map)[0]) {
/* should panic */
printk("\n\n***WARNING*** "
"Sanity check of CPU present map FAILED\n");
}
} else if (voyager_level == 4)
voyager_extended_vic_processors =
- cpus_addr(phys_cpu_present_map)[0];
+ cpus_addr(voyager_phys_cpu_present_map)[0];
/* this sets up the idle task to run on the current cpu */
voyager_extended_cpus = 1;
/* loop over all the extended VIC CPUs and boot them. The
* Quad CPUs must be bootstrapped by their extended VIC cpu */
for (i = 0; i < nr_cpu_ids; i++) {
- if (i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map))
+ if (i == boot_cpu_id || !cpu_isset(i, voyager_phys_cpu_present_map))
continue;
do_boot_cpu(i);
/* This udelay seems to be needed for the Quad boots
#include <asm/pat.h>
#include <linux/module.h>
+#ifdef CONFIG_X86_PAE
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size)
+{
+ return 1;
+}
+#else
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size)
+{
+ /* There is no way to map greater than 1 << 32 address without PAE */
+ if (base + size > 0x100000000ULL)
+ return 0;
+
+ return 1;
+}
+#endif
+
/* Map 'pfn' using fixed map 'type' and protections 'prot'
*/
void *
struct list_head list;
struct kmmio_fault_page *release_next;
unsigned long page; /* location of the fault page */
+ bool old_presence; /* page presence prior to arming */
+ bool armed;
/*
* Number of times this page has been registered as a part
* of a probe. If zero, page is disarmed and this may be freed.
- * Used only by writers (RCU).
+ * Used only by writers (RCU) and post_kmmio_handler().
+ * Protected by kmmio_lock, when linked into kmmio_page_table.
*/
int count;
};
return NULL;
}
-static void set_page_present(unsigned long addr, bool present,
- unsigned int *pglevel)
+static void set_pmd_presence(pmd_t *pmd, bool present, bool *old)
+{
+ pmdval_t v = pmd_val(*pmd);
+ *old = !!(v & _PAGE_PRESENT);
+ v &= ~_PAGE_PRESENT;
+ if (present)
+ v |= _PAGE_PRESENT;
+ set_pmd(pmd, __pmd(v));
+}
+
+static void set_pte_presence(pte_t *pte, bool present, bool *old)
+{
+ pteval_t v = pte_val(*pte);
+ *old = !!(v & _PAGE_PRESENT);
+ v &= ~_PAGE_PRESENT;
+ if (present)
+ v |= _PAGE_PRESENT;
+ set_pte_atomic(pte, __pte(v));
+}
+
+static int set_page_presence(unsigned long addr, bool present, bool *old)
{
- pteval_t pteval;
- pmdval_t pmdval;
unsigned int level;
- pmd_t *pmd;
pte_t *pte = lookup_address(addr, &level);
if (!pte) {
pr_err("kmmio: no pte for page 0x%08lx\n", addr);
- return;
+ return -1;
}
- if (pglevel)
- *pglevel = level;
-
switch (level) {
case PG_LEVEL_2M:
- pmd = (pmd_t *)pte;
- pmdval = pmd_val(*pmd) & ~_PAGE_PRESENT;
- if (present)
- pmdval |= _PAGE_PRESENT;
- set_pmd(pmd, __pmd(pmdval));
+ set_pmd_presence((pmd_t *)pte, present, old);
break;
-
case PG_LEVEL_4K:
- pteval = pte_val(*pte) & ~_PAGE_PRESENT;
- if (present)
- pteval |= _PAGE_PRESENT;
- set_pte_atomic(pte, __pte(pteval));
+ set_pte_presence(pte, present, old);
break;
-
default:
pr_err("kmmio: unexpected page level 0x%x.\n", level);
- return;
+ return -1;
}
__flush_tlb_one(addr);
+ return 0;
}
-/** Mark the given page as not present. Access to it will trigger a fault. */
-static void arm_kmmio_fault_page(unsigned long page, unsigned int *pglevel)
+/*
+ * Mark the given page as not present. Access to it will trigger a fault.
+ *
+ * Struct kmmio_fault_page is protected by RCU and kmmio_lock, but the
+ * protection is ignored here. RCU read lock is assumed held, so the struct
+ * will not disappear unexpectedly. Furthermore, the caller must guarantee,
+ * that double arming the same virtual address (page) cannot occur.
+ *
+ * Double disarming on the other hand is allowed, and may occur when a fault
+ * and mmiotrace shutdown happen simultaneously.
+ */
+static int arm_kmmio_fault_page(struct kmmio_fault_page *f)
{
- set_page_present(page & PAGE_MASK, false, pglevel);
+ int ret;
+ WARN_ONCE(f->armed, KERN_ERR "kmmio page already armed.\n");
+ if (f->armed) {
+ pr_warning("kmmio double-arm: page 0x%08lx, ref %d, old %d\n",
+ f->page, f->count, f->old_presence);
+ }
+ ret = set_page_presence(f->page, false, &f->old_presence);
+ WARN_ONCE(ret < 0, KERN_ERR "kmmio arming 0x%08lx failed.\n", f->page);
+ f->armed = true;
+ return ret;
}
-/** Mark the given page as present. */
-static void disarm_kmmio_fault_page(unsigned long page, unsigned int *pglevel)
+/** Restore the given page to saved presence state. */
+static void disarm_kmmio_fault_page(struct kmmio_fault_page *f)
{
- set_page_present(page & PAGE_MASK, true, pglevel);
+ bool tmp;
+ int ret = set_page_presence(f->page, f->old_presence, &tmp);
+ WARN_ONCE(ret < 0,
+ KERN_ERR "kmmio disarming 0x%08lx failed.\n", f->page);
+ f->armed = false;
}
/*
ctx = &get_cpu_var(kmmio_ctx);
if (ctx->active) {
- disarm_kmmio_fault_page(faultpage->page, NULL);
if (addr == ctx->addr) {
/*
- * On SMP we sometimes get recursive probe hits on the
- * same address. Context is already saved, fall out.
+ * A second fault on the same page means some other
+ * condition needs handling by do_page_fault(), the
+ * page really not being present is the most common.
*/
- pr_debug("kmmio: duplicate probe hit on CPU %d, for "
- "address 0x%08lx.\n",
- smp_processor_id(), addr);
- ret = 1;
- goto no_kmmio_ctx;
- }
- /*
- * Prevent overwriting already in-flight context.
- * This should not happen, let's hope disarming at least
- * prevents a panic.
- */
- pr_emerg("kmmio: recursive probe hit on CPU %d, "
+ pr_debug("kmmio: secondary hit for 0x%08lx CPU %d.\n",
+ addr, smp_processor_id());
+
+ if (!faultpage->old_presence)
+ pr_info("kmmio: unexpected secondary hit for "
+ "address 0x%08lx on CPU %d.\n", addr,
+ smp_processor_id());
+ } else {
+ /*
+ * Prevent overwriting already in-flight context.
+ * This should not happen, let's hope disarming at
+ * least prevents a panic.
+ */
+ pr_emerg("kmmio: recursive probe hit on CPU %d, "
"for address 0x%08lx. Ignoring.\n",
smp_processor_id(), addr);
- pr_emerg("kmmio: previous hit was at 0x%08lx.\n",
- ctx->addr);
+ pr_emerg("kmmio: previous hit was at 0x%08lx.\n",
+ ctx->addr);
+ disarm_kmmio_fault_page(faultpage);
+ }
goto no_kmmio_ctx;
}
ctx->active++;
regs->flags &= ~X86_EFLAGS_IF;
/* Now we set present bit in PTE and single step. */
- disarm_kmmio_fault_page(ctx->fpage->page, NULL);
+ disarm_kmmio_fault_page(ctx->fpage);
/*
* If another cpu accesses the same page while we are stepping,
struct kmmio_context *ctx = &get_cpu_var(kmmio_ctx);
if (!ctx->active) {
- pr_debug("kmmio: spurious debug trap on CPU %d.\n",
+ pr_warning("kmmio: spurious debug trap on CPU %d.\n",
smp_processor_id());
goto out;
}
if (ctx->probe && ctx->probe->post_handler)
ctx->probe->post_handler(ctx->probe, condition, regs);
- arm_kmmio_fault_page(ctx->fpage->page, NULL);
+ /* Prevent racing against release_kmmio_fault_page(). */
+ spin_lock(&kmmio_lock);
+ if (ctx->fpage->count)
+ arm_kmmio_fault_page(ctx->fpage);
+ spin_unlock(&kmmio_lock);
regs->flags &= ~X86_EFLAGS_TF;
regs->flags |= ctx->saved_flags;
f = get_kmmio_fault_page(page);
if (f) {
if (!f->count)
- arm_kmmio_fault_page(f->page, NULL);
+ arm_kmmio_fault_page(f);
f->count++;
return 0;
}
- f = kmalloc(sizeof(*f), GFP_ATOMIC);
+ f = kzalloc(sizeof(*f), GFP_ATOMIC);
if (!f)
return -1;
f->count = 1;
f->page = page;
- list_add_rcu(&f->list, kmmio_page_list(f->page));
- arm_kmmio_fault_page(f->page, NULL);
+ if (arm_kmmio_fault_page(f)) {
+ kfree(f);
+ return -1;
+ }
+
+ list_add_rcu(&f->list, kmmio_page_list(f->page));
return 0;
}
f->count--;
BUG_ON(f->count < 0);
if (!f->count) {
- disarm_kmmio_fault_page(f->page, NULL);
+ disarm_kmmio_fault_page(f);
f->release_next = *release_list;
*release_list = f;
}
/*
- * Written by Pekka Paalanen, 2008 <pq@iki.fi>
+ * Written by Pekka Paalanen, 2008
-2009 <pq@iki.fi>
*/
#include <linux/module.h>
#include <linux/io.h>
static unsigned long mmio_address;
module_param(mmio_address, ulong, 0);
-MODULE_PARM_DESC(mmio_address, "Start address of the mapping of 16 kB.");
+MODULE_PARM_DESC(mmio_address, " Start address of the mapping of 16 kB "
+ "(or 8 MB if read_far is non-zero).");
+
+static unsigned long read_far = 0x400100;
+module_param(read_far, ulong, 0);
+MODULE_PARM_DESC(read_far, " Offset of a 32-bit read within 8 MB "
+ "(default: 0x400100).");
+
+static unsigned v16(unsigned i)
+{
+ return i * 12 + 7;
+}
+
+static unsigned v32(unsigned i)
+{
+ return i * 212371 + 13;
+}
static void do_write_test(void __iomem *p)
{
unsigned int i;
+ pr_info(MODULE_NAME ": write test.\n");
mmiotrace_printk("Write test.\n");
+
for (i = 0; i < 256; i++)
iowrite8(i, p + i);
+
for (i = 1024; i < (5 * 1024); i += 2)
- iowrite16(i * 12 + 7, p + i);
+ iowrite16(v16(i), p + i);
+
for (i = (5 * 1024); i < (16 * 1024); i += 4)
- iowrite32(i * 212371 + 13, p + i);
+ iowrite32(v32(i), p + i);
}
static void do_read_test(void __iomem *p)
{
unsigned int i;
+ unsigned errs[3] = { 0 };
+ pr_info(MODULE_NAME ": read test.\n");
mmiotrace_printk("Read test.\n");
+
for (i = 0; i < 256; i++)
- ioread8(p + i);
+ if (ioread8(p + i) != i)
+ ++errs[0];
+
for (i = 1024; i < (5 * 1024); i += 2)
- ioread16(p + i);
+ if (ioread16(p + i) != v16(i))
+ ++errs[1];
+
for (i = (5 * 1024); i < (16 * 1024); i += 4)
- ioread32(p + i);
+ if (ioread32(p + i) != v32(i))
+ ++errs[2];
+
+ mmiotrace_printk("Read errors: 8-bit %d, 16-bit %d, 32-bit %d.\n",
+ errs[0], errs[1], errs[2]);
}
-static void do_test(void)
+static void do_read_far_test(void __iomem *p)
{
- void __iomem *p = ioremap_nocache(mmio_address, 0x4000);
+ pr_info(MODULE_NAME ": read far test.\n");
+ mmiotrace_printk("Read far test.\n");
+
+ ioread32(p + read_far);
+}
+
+static void do_test(unsigned long size)
+{
+ void __iomem *p = ioremap_nocache(mmio_address, size);
if (!p) {
pr_err(MODULE_NAME ": could not ioremap, aborting.\n");
return;
mmiotrace_printk("ioremap returned %p.\n", p);
do_write_test(p);
do_read_test(p);
+ if (read_far && read_far < size - 4)
+ do_read_far_test(p);
iounmap(p);
}
static int __init init(void)
{
+ unsigned long size = (read_far) ? (8 << 20) : (16 << 10);
+
if (mmio_address == 0) {
pr_err(MODULE_NAME ": you have to use the module argument "
"mmio_address.\n");
return -ENXIO;
}
- pr_warning(MODULE_NAME ": WARNING: mapping 16 kB @ 0x%08lx "
- "in PCI address space, and writing "
- "rubbish in there.\n", mmio_address);
- do_test();
+ pr_warning(MODULE_NAME ": WARNING: mapping %lu kB @ 0x%08lx in PCI "
+ "address space, and writing 16 kB of rubbish in there.\n",
+ size >> 10, mmio_address);
+ do_test(size);
+ pr_info(MODULE_NAME ": All done.\n");
return 0;
}
possible map and a non-dummy shared_info. */
per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
+ local_irq_disable();
+ early_boot_irqs_off();
+
xen_raw_console_write("mapping kernel into physical memory\n");
pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);
dev_priv->mm.gtt_mapping =
io_mapping_create_wc(dev->agp->base,
dev->agp->agp_info.aper_size * 1024*1024);
+ if (dev_priv->mm.gtt_mapping == NULL) {
+ ret = -EIO;
+ goto out_rmmap;
+ }
+
/* Set up a WC MTRR for non-PAT systems. This is more common than
* one would think, because the kernel disables PAT on first
* generation Core chips because WC PAT gets overridden by a UC
if (!I915_NEED_GFX_HWS(dev)) {
ret = i915_init_phys_hws(dev);
if (ret != 0)
- goto out_rmmap;
+ goto out_iomapfree;
}
/* On the 945G/GM, the chipset reports the MSI capability on the
return 0;
+out_iomapfree:
+ io_mapping_free(dev_priv->mm.gtt_mapping);
out_rmmap:
iounmap(dev_priv->regs);
free_priv:
return 0;
}
+EXPORT_SYMBOL(flexcop_pid_feed_control);
void flexcop_hw_filter_init(struct flexcop_device *fc)
{
module_param(enable_pid_filtering, int, 0444);
MODULE_PARM_DESC(enable_pid_filtering, "enable hardware pid filtering: supported values: 0 (fullts), 1");
-static int irq_chk_intv;
+static int irq_chk_intv = 100;
module_param(irq_chk_intv, int, 0644);
-MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently just debugging).");
+MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
#define dprintk(level,args...) \
static int debug;
module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debug level (1=info,2=regs,4=TS,8=irqdma (|-able))." DEBSTATUS);
+MODULE_PARM_DESC(debug,
+ "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
+ DEBSTATUS);
#define DRIVER_VERSION "0.1"
#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver"
int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
u32 last_dma1_cur_pos; /* position of the pointer last time the timer/packet irq occured */
int count;
+ int count_prev;
+ int stream_problem;
spinlock_t irq_lock;
container_of(work, struct flexcop_pci, irq_check_work.work);
struct flexcop_device *fc = fc_pci->fc_dev;
- flexcop_ibi_value v = fc->read_ibi_reg(fc,sram_dest_reg_714);
-
- flexcop_dump_reg(fc_pci->fc_dev,dma1_000,4);
-
- if (v.sram_dest_reg_714.net_ovflow_error)
- deb_chk("sram net_ovflow_error\n");
- if (v.sram_dest_reg_714.media_ovflow_error)
- deb_chk("sram media_ovflow_error\n");
- if (v.sram_dest_reg_714.cai_ovflow_error)
- deb_chk("sram cai_ovflow_error\n");
- if (v.sram_dest_reg_714.cai_ovflow_error)
- deb_chk("sram cai_ovflow_error\n");
+ if (fc->feedcount) {
+
+ if (fc_pci->count == fc_pci->count_prev) {
+ deb_chk("no IRQ since the last check\n");
+ if (fc_pci->stream_problem++ == 3) {
+ struct dvb_demux_feed *feed;
+
+ spin_lock_irq(&fc->demux.lock);
+ list_for_each_entry(feed, &fc->demux.feed_list,
+ list_head) {
+ flexcop_pid_feed_control(fc, feed, 0);
+ }
+
+ list_for_each_entry(feed, &fc->demux.feed_list,
+ list_head) {
+ flexcop_pid_feed_control(fc, feed, 1);
+ }
+ spin_unlock_irq(&fc->demux.lock);
+
+ fc_pci->stream_problem = 0;
+ }
+ } else {
+ fc_pci->stream_problem = 0;
+ fc_pci->count_prev = fc_pci->count;
+ }
+ }
schedule_delayed_work(&fc_pci->irq_check_work,
msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
flexcop_dma_control_timer_irq(fc,FC_DMA_1,1);
deb_irq("IRQ enabled\n");
+ fc_pci->count_prev = fc_pci->count;
+
// fc_pci->active_dma1_addr = 0;
// flexcop_dma_control_size_irq(fc,FC_DMA_1,1);
- if (irq_chk_intv > 0)
- schedule_delayed_work(&fc_pci->irq_check_work,
- msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
} else {
- if (irq_chk_intv > 0)
- cancel_delayed_work(&fc_pci->irq_check_work);
-
flexcop_dma_control_timer_irq(fc,FC_DMA_1,0);
deb_irq("IRQ disabled\n");
IRQF_SHARED, DRIVER_NAME, fc_pci)) != 0)
goto err_pci_iounmap;
-
-
fc_pci->init_state |= FC_PCI_INIT;
return ret;
INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work);
+ if (irq_chk_intv > 0)
+ schedule_delayed_work(&fc_pci->irq_check_work,
+ msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
+
return ret;
err_fc_exit:
{
struct flexcop_pci *fc_pci = pci_get_drvdata(pdev);
+ if (irq_chk_intv > 0)
+ cancel_delayed_work(&fc_pci->irq_check_work);
+
flexcop_pci_dma_exit(fc_pci);
flexcop_device_exit(fc_pci->fc_dev);
flexcop_pci_exit(fc_pci);
v210.sw_reset_210.Block_reset_enable = 0xb2;
fc->write_ibi_reg(fc,sw_reset_210,v210);
- msleep(1);
-
+ udelay(1000);
fc->write_ibi_reg(fc,ctrl_208,v208_save);
}
pcm->info_flags = 0;
pcm->private_data = dev;
strcpy(pcm->name, "Empia 28xx Capture");
+
+ snd_card_set_dev(card, &dev->udev->dev);
strcpy(card->driver, "Empia Em28xx Audio");
strcpy(card->shortname, "Em28xx Audio");
strcpy(card->longname, "Empia Em28xx Audio");
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
- const struct soc_camera_data_format *host_fmt, *cam_fmt = NULL;
- const struct soc_camera_format_xlate *xlate;
+ const struct soc_camera_data_format *cam_fmt = NULL;
+ const struct soc_camera_format_xlate *xlate = NULL;
struct soc_camera_sense sense = {
.master_clock = pcdev->mclk,
.pixel_clock_max = pcdev->ciclk / 4,
};
- int ret, buswidth;
+ int ret;
- xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
- if (!xlate) {
- dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
- return -EINVAL;
- }
+ if (pixfmt) {
+ xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
+ if (!xlate) {
+ dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
+ return -EINVAL;
+ }
- buswidth = xlate->buswidth;
- host_fmt = xlate->host_fmt;
- cam_fmt = xlate->cam_fmt;
+ cam_fmt = xlate->cam_fmt;
+ }
/* If PCLK is used to latch data from the sensor, check sense */
if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
}
if (pixfmt && !ret) {
- icd->buswidth = buswidth;
- icd->current_fmt = host_fmt;
+ icd->buswidth = xlate->buswidth;
+ icd->current_fmt = xlate->host_fmt;
}
return ret;
const struct soc_camera_format_xlate *xlate;
int ret;
+ if (!pixfmt)
+ return icd->ops->set_fmt(icd, pixfmt, rect);
+
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (!xlate) {
dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
return -EINVAL;
}
- switch (pixfmt) {
- case 0: /* Only geometry change */
- ret = icd->ops->set_fmt(icd, pixfmt, rect);
- break;
- default:
- ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
- }
+ ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
- if (pixfmt && !ret) {
+ if (!ret) {
icd->buswidth = xlate->buswidth;
icd->current_fmt = xlate->host_fmt;
pcdev->camera_fmt = xlate->cam_fmt;
static struct pci_device_id ilo_devices[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xB204) },
+ { PCI_DEVICE(PCI_VENDOR_ID_HP, 0x3307) },
{ }
};
MODULE_DEVICE_TABLE(pci, ilo_devices);
class_destroy(ilo_class);
}
-MODULE_VERSION("0.06");
+MODULE_VERSION("1.0");
MODULE_ALIAS(ILO_NAME);
MODULE_DESCRIPTION(ILO_NAME);
MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>");
static int maprom_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
static void maprom_nop (struct mtd_info *);
static struct mtd_info *map_rom_probe(struct map_info *map);
+static int maprom_erase (struct mtd_info *mtd, struct erase_info *info);
static struct mtd_chip_driver maprom_chipdrv = {
.probe = map_rom_probe,
mtd->read = maprom_read;
mtd->write = maprom_write;
mtd->sync = maprom_nop;
+ mtd->erase = maprom_erase;
mtd->flags = MTD_CAP_ROM;
mtd->erasesize = map->size;
mtd->writesize = 1;
return -EIO;
}
+static int maprom_erase (struct mtd_info *mtd, struct erase_info *info)
+{
+ /* We do our best 8) */
+ return -EROFS;
+}
+
static int __init map_rom_init(void)
{
register_mtd_chip_driver(&maprom_chipdrv);
if (*(szlength) != '+') {
devlength = simple_strtoul(szlength, &buffer, 0);
devlength = handle_unit(devlength, buffer) - devstart;
+ if (devlength < devstart)
+ goto err_out;
+
+ devlength -= devstart;
} else {
devlength = simple_strtoul(szlength + 1, &buffer, 0);
devlength = handle_unit(devlength, buffer);
}
T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n",
devname, devstart, devlength);
- if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) {
- E("slram: Illegal start / length parameter.\n");
- return(-EINVAL);
- }
+ if (devlength % SLRAM_BLK_SZ != 0)
+ goto err_out;
if ((devstart = register_device(devname, devstart, devlength))){
unregister_devices();
return((int)devstart);
}
return(0);
+
+err_out:
+ E("slram: Illegal length parameter.\n");
+ return(-EINVAL);
}
#ifndef MODULE
DDR memories, intended for battery-operated systems.
config MTD_QINFO_PROBE
+ depends on MTD_LPDDR
tristate "Detect flash chips by QINFO probe"
help
Device Information for LPDDR chips is offered through the Overlay
config MTD_BFIN_ASYNC
tristate "Blackfin BF533-STAMP Flash Chip Support"
- depends on BFIN533_STAMP && MTD_CFI
+ depends on BFIN533_STAMP && MTD_CFI && MTD_COMPLEX_MAPPINGS
select MTD_PARTITIONS
default y
help
if (gpio_request(state->enet_flash_pin, DRIVER_NAME)) {
pr_devinit(KERN_ERR DRIVER_NAME ": Failed to request gpio %d\n", state->enet_flash_pin);
+ kfree(state);
return -EBUSY;
}
gpio_direction_output(state->enet_flash_pin, 1);
pr_devinit(KERN_NOTICE DRIVER_NAME ": probing %d-bit flash bus\n", state->map.bankwidth * 8);
state->mtd = do_map_probe(memory->name, &state->map);
- if (!state->mtd)
+ if (!state->mtd) {
+ gpio_free(state->enet_flash_pin);
+ kfree(state);
return -ENXIO;
+ }
#ifdef CONFIG_MTD_PARTITIONS
ret = parse_mtd_partitions(state->mtd, part_probe_types, &pdata->parts, 0);
{ 0, }
};
+#if 0
MODULE_DEVICE_TABLE(pci, ck804xrom_pci_tbl);
-#if 0
static struct pci_driver ck804xrom_driver = {
.name = MOD_NAME,
.id_table = ck804xrom_pci_tbl,
struct map_info map[MAX_RESOURCES];
#ifdef CONFIG_MTD_PARTITIONS
int nr_parts;
+ struct mtd_partition *parts;
#endif
};
physmap_data = dev->dev.platform_data;
-#ifdef CONFIG_MTD_CONCAT
- if (info->cmtd != info->mtd[0]) {
+#ifdef CONFIG_MTD_PARTITIONS
+ if (info->nr_parts) {
+ del_mtd_partitions(info->cmtd);
+ kfree(info->parts);
+ } else if (physmap_data->nr_parts)
+ del_mtd_partitions(info->cmtd);
+ else
del_mtd_device(info->cmtd);
+#else
+ del_mtd_device(info->cmtd);
+#endif
+
+#ifdef CONFIG_MTD_CONCAT
+ if (info->cmtd != info->mtd[0])
mtd_concat_destroy(info->cmtd);
- }
#endif
for (i = 0; i < MAX_RESOURCES; i++) {
- if (info->mtd[i] != NULL) {
-#ifdef CONFIG_MTD_PARTITIONS
- if (info->nr_parts || physmap_data->nr_parts)
- del_mtd_partitions(info->mtd[i]);
- else
- del_mtd_device(info->mtd[i]);
-#else
- del_mtd_device(info->mtd[i]);
-#endif
+ if (info->mtd[i] != NULL)
map_destroy(info->mtd[i]);
- }
}
return 0;
}
int err = 0;
int i;
int devices_found = 0;
-#ifdef CONFIG_MTD_PARTITIONS
- struct mtd_partition *parts;
-#endif
physmap_data = dev->dev.platform_data;
if (physmap_data == NULL)
goto err_out;
#ifdef CONFIG_MTD_PARTITIONS
- err = parse_mtd_partitions(info->cmtd, part_probe_types, &parts, 0);
+ err = parse_mtd_partitions(info->cmtd, part_probe_types,
+ &info->parts, 0);
if (err > 0) {
- add_mtd_partitions(info->cmtd, parts, err);
- kfree(parts);
+ add_mtd_partitions(info->cmtd, info->parts, err);
+ info->nr_parts = err;
return 0;
}
int cmd_busy;
unsigned int no_cmd_complete:1;
unsigned int link_active_reporting:1;
+ unsigned int notification_enabled:1;
};
#define INT_BUTTON_IGNORE 0
extern int pciehp_unconfigure_device(struct slot *p_slot);
extern void pciehp_queue_pushbutton_work(struct work_struct *work);
struct controller *pcie_init(struct pcie_device *dev);
+int pcie_init_notification(struct controller *ctrl);
int pciehp_enable_slot(struct slot *p_slot);
int pciehp_disable_slot(struct slot *p_slot);
int pcie_enable_notification(struct controller *ctrl);
goto err_out_release_ctlr;
}
+ /* Enable events after we have setup the data structures */
+ rc = pcie_init_notification(ctrl);
+ if (rc) {
+ ctrl_err(ctrl, "Notification initialization failed\n");
+ goto err_out_release_ctlr;
+ }
+
/* Check if slot is occupied */
t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
t_slot->hpc_ops->get_adapter_status(t_slot, &value);
ctrl_warn(ctrl, "Cannot disable software notification\n");
}
-static int pcie_init_notification(struct controller *ctrl)
+int pcie_init_notification(struct controller *ctrl)
{
if (pciehp_request_irq(ctrl))
return -1;
pciehp_free_irq(ctrl);
return -1;
}
+ ctrl->notification_enabled = 1;
return 0;
}
static void pcie_shutdown_notification(struct controller *ctrl)
{
- pcie_disable_notification(ctrl);
- pciehp_free_irq(ctrl);
+ if (ctrl->notification_enabled) {
+ pcie_disable_notification(ctrl);
+ pciehp_free_irq(ctrl);
+ ctrl->notification_enabled = 0;
+ }
}
static int pcie_init_slot(struct controller *ctrl)
if (pcie_init_slot(ctrl))
goto abort_ctrl;
- if (pcie_init_notification(ctrl))
- goto abort_slot;
-
return ctrl;
-abort_slot:
- pcie_cleanup_slot(ctrl);
abort_ctrl:
kfree(ctrl);
abort:
}
#endif /* 0 */
+
+static void set_device_error_reporting(struct pci_dev *dev, void *data)
+{
+ bool enable = *((bool *)data);
+
+ if (dev->pcie_type != PCIE_RC_PORT &&
+ dev->pcie_type != PCIE_SW_UPSTREAM_PORT &&
+ dev->pcie_type != PCIE_SW_DOWNSTREAM_PORT)
+ return;
+
+ if (enable)
+ pci_enable_pcie_error_reporting(dev);
+ else
+ pci_disable_pcie_error_reporting(dev);
+}
+
+/**
+ * set_downstream_devices_error_reporting - enable/disable the error reporting bits on the root port and its downstream ports.
+ * @dev: pointer to root port's pci_dev data structure
+ * @enable: true = enable error reporting, false = disable error reporting.
+ */
+static void set_downstream_devices_error_reporting(struct pci_dev *dev,
+ bool enable)
+{
+ set_device_error_reporting(dev, &enable);
+ pci_walk_bus(dev->subordinate, set_device_error_reporting, &enable);
+}
+
static int find_device_iter(struct device *device, void *data)
{
struct pci_dev *dev;
pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, ®32);
pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32);
- /* Enable Root Port device reporting error itself */
- pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, ®16);
- reg16 = reg16 |
- PCI_EXP_DEVCTL_CERE |
- PCI_EXP_DEVCTL_NFERE |
- PCI_EXP_DEVCTL_FERE |
- PCI_EXP_DEVCTL_URRE;
- pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL,
- reg16);
+ /*
+ * Enable error reporting for the root port device and downstream port
+ * devices.
+ */
+ set_downstream_devices_error_reporting(pdev, true);
/* Enable Root Port's interrupt in response to error messages */
pci_write_config_dword(pdev,
u32 reg32;
int pos;
+ /*
+ * Disable error reporting for the root port device and downstream port
+ * devices.
+ */
+ set_downstream_devices_error_reporting(pdev, false);
+
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
/* Disable Root's interrupt in response to error messages */
pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0);
pcie_portdrv_save_config(dev);
- pci_enable_pcie_error_reporting(dev);
-
return 0;
}
*/
#define AMD_813X_MISC 0x40
#define AMD_813X_NOIOAMODE (1<<0)
+#define AMD_813X_REV_B2 0x13
static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
{
if (noioapicquirk)
return;
+ if (dev->revision == AMD_813X_REV_B2)
+ return;
pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
pci_config_dword &= ~AMD_813X_NOIOAMODE;
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
quirk_msi_ht_cap);
-
/* The nVidia CK804 chipset may have 2 HT MSI mappings.
* MSI are supported if the MSI capability set in any of these mappings.
*/
PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
ht_enable_msi_mapping);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
+ ht_enable_msi_mapping);
+
/* The P5N32-SLI Premium motherboard from Asus has a problem with msi
* for the MCP55 NIC. It is not yet determined whether the msi problem
* also affects other devices. As for now, turn off msi for this device.
PCI_DEVICE_ID_NVIDIA_NVENET_15,
nvenet_msi_disable);
-static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
+static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
{
struct pci_dev *host_bridge;
+ int pos;
+ int i, dev_no;
+ int found = 0;
+
+ dev_no = dev->devfn >> 3;
+ for (i = dev_no; i >= 0; i--) {
+ host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
+ if (!host_bridge)
+ continue;
+
+ pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
+ if (pos != 0) {
+ found = 1;
+ break;
+ }
+ pci_dev_put(host_bridge);
+ }
+
+ if (!found)
+ return;
+
+ /* root did that ! */
+ if (msi_ht_cap_enabled(host_bridge))
+ goto out;
+
+ ht_enable_msi_mapping(dev);
+
+out:
+ pci_dev_put(host_bridge);
+}
+
+static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
+{
+ int pos, ttl = 48;
+
+ pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
+ while (pos && ttl--) {
+ u8 flags;
+
+ if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
+ &flags) == 0) {
+ dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
+
+ pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
+ flags & ~HT_MSI_FLAGS_ENABLE);
+ }
+ pos = pci_find_next_ht_capability(dev, pos,
+ HT_CAPTYPE_MSI_MAPPING);
+ }
+}
+
+static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
+{
int pos, ttl = 48;
+ int found = 0;
+
+ /* check if there is HT MSI cap or enabled on this device */
+ pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
+ while (pos && ttl--) {
+ u8 flags;
+
+ if (found < 1)
+ found = 1;
+ if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
+ &flags) == 0) {
+ if (flags & HT_MSI_FLAGS_ENABLE) {
+ if (found < 2) {
+ found = 2;
+ break;
+ }
+ }
+ }
+ pos = pci_find_next_ht_capability(dev, pos,
+ HT_CAPTYPE_MSI_MAPPING);
+ }
+
+ return found;
+}
+
+static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
+{
+ struct pci_dev *host_bridge;
+ int pos;
+ int found;
+
+ /* check if there is HT MSI cap or enabled on this device */
+ found = ht_check_msi_mapping(dev);
+
+ /* no HT MSI CAP */
+ if (found == 0)
+ return;
/*
* HT MSI mapping should be disabled on devices that are below
pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
if (pos != 0) {
/* Host bridge is to HT */
- ht_enable_msi_mapping(dev);
+ if (found == 1) {
+ /* it is not enabled, try to enable it */
+ nv_ht_enable_msi_mapping(dev);
+ }
return;
}
- /* Host bridge is not to HT, disable HT MSI mapping on this device */
- pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
- while (pos && ttl--) {
- u8 flags;
+ /* HT MSI is not enabled */
+ if (found == 1)
+ return;
- if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
- &flags) == 0) {
- dev_info(&dev->dev, "Disabling HT MSI mapping");
- pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
- flags & ~HT_MSI_FLAGS_ENABLE);
- }
- pos = pci_find_next_ht_capability(dev, pos,
- HT_CAPTYPE_MSI_MAPPING);
- }
+ /* Host bridge is not to HT, disable HT MSI mapping on this device */
+ ht_disable_msi_mapping(dev);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
# define SCSPTR3 0xffed0024 /* 16 bit SCIF */
# define SCSPTR4 0xffee0024 /* 16 bit SCIF */
# define SCSPTR5 0xffef0024 /* 16 bit SCIF */
-# define SCIF_OPER 0x0001 /* Overrun error bit */
+# define SCIF_ORER 0x0001 /* Overrun error bit */
# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7201) || \
defined(CONFIG_CPU_SUBTYPE_SH7203) || \
if (scan_timer.function != NULL)
del_timer(&scan_timer);
- if (keypad_enabled)
- misc_deregister(&keypad_dev);
+ if (pprt != NULL) {
+ if (keypad_enabled)
+ misc_deregister(&keypad_dev);
+
+ if (lcd_enabled) {
+ panel_lcd_print("\x0cLCD driver " PANEL_VERSION
+ "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
+ misc_deregister(&lcd_dev);
+ }
- if (lcd_enabled) {
- panel_lcd_print("\x0cLCD driver " PANEL_VERSION
- "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
- misc_deregister(&lcd_dev);
+ /* TODO: free all input signals */
+ parport_release(pprt);
+ parport_unregister_device(pprt);
}
-
- /* TODO: free all input signals */
-
- parport_release(pprt);
- parport_unregister_device(pprt);
parport_unregister_driver(&panel_driver);
}
config RTL8187SE
tristate "RealTek RTL8187SE Wireless LAN NIC driver"
depends on PCI
+ depends on WIRELESS_EXT && COMPAT_NET_DEV_OPS
default N
---help---
void ieee80211_crypto_deinit(void)
{
struct list_head *ptr, *n;
+ struct ieee80211_crypto_alg *alg = NULL;
if (hcrypt == NULL)
return;
- for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs;
- ptr = n, n = ptr->next) {
- struct ieee80211_crypto_alg *alg =
- (struct ieee80211_crypto_alg *) ptr;
- list_del(ptr);
- printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
- "'%s' (deinit)\n", alg->ops->name);
- kfree(alg);
+ list_for_each_safe(ptr, n, &hcrypt->algs) {
+ alg = list_entry(ptr, struct ieee80211_crypto_alg, list);
+ if (alg) {
+ list_del(ptr);
+ printk(KERN_DEBUG
+ "ieee80211_crypt: unregistered algorithm '%s' (deinit)\n",
+ alg->ops->name);
+ kfree(alg);
+ }
}
-
kfree(hcrypt);
}
{
pci_unregister_driver (&rtl8180_pci_driver);
rtl8180_proc_module_remove();
- ieee80211_crypto_deinit();
ieee80211_crypto_tkip_exit();
ieee80211_crypto_ccmp_exit();
ieee80211_crypto_wep_exit();
+ ieee80211_crypto_deinit();
DMESG("Exiting");
}
struct usb_device *udev = interface_to_usbdev(intf);
struct wbsoft_priv *priv;
struct ieee80211_hw *dev;
- int err;
+ int nr, err;
usb_get_dev(udev);
// 20060630.2 Check the device if it already be opened
- err = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
- 0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
- 0x0, 0x400, <mp, 4, HZ*100 );
- if (err)
+ nr = usb_control_msg(udev, usb_rcvctrlpipe( udev, 0 ),
+ 0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
+ 0x0, 0x400, <mp, 4, HZ*100 );
+ if (nr < 0) {
+ err = nr;
goto error;
+ }
ltmp = cpu_to_le32(ltmp);
if (ltmp) { // Is already initialized?
}
dev = ieee80211_alloc_hw(sizeof(*priv), &wbsoft_ops);
- if (!dev)
+ if (!dev) {
+ err = -ENOMEM;
goto error;
+ }
priv = dev->priv;
}
dev->extra_tx_headroom = 12; /* FIXME */
- dev->flags = 0;
+ dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
dev->channel_change_time = 1000;
+ dev->max_signal = 100;
dev->queues = 1;
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;
{ USB_DEVICE(0x0572, 0x1324), /* Conexant USB MODEM RD02-D400 */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
+ { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
+ },
+ { USB_DEVICE(0x0572, 0x1329), /* Hummingbird huc56s (Conexant) */
+ .driver_info = NO_UNION_NORMAL, /* union descriptor misplaced on
+ data interface instead of
+ communications interface.
+ Maybe we should define a new
+ quirk for this. */
+ },
/* control interfaces with various AT-command sets */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
if (result <= 0 && result != -ETIMEDOUT)
continue;
if (result > 1 && ((u8 *)buf)[1] != type) {
- result = -EPROTO;
+ result = -ENODATA;
continue;
}
break;
USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
(USB_DT_STRING << 8) + index, langid, buf, size,
USB_CTRL_GET_TIMEOUT);
- if (!(result == 0 || result == -EPIPE))
- break;
+ if (result == 0 || result == -EPIPE)
+ continue;
+ if (result > 1 && ((u8 *) buf)[1] != USB_DT_STRING) {
+ result = -ENODATA;
+ continue;
+ }
+ break;
}
return result;
}
boolean "OMAP USB Device Controller"
depends on ARCH_OMAP
select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
+ select USB_OTG_UTILS if ARCH_OMAP
help
Many Texas Instruments OMAP processors have flexible full
speed USB device controllers, with support for up to 30
f->hs_descriptors = usb_copy_descriptors(hs_function);
obex->hs.obex_in = usb_find_endpoint(hs_function,
- f->descriptors, &obex_hs_ep_in_desc);
+ f->hs_descriptors, &obex_hs_ep_in_desc);
obex->hs.obex_out = usb_find_endpoint(hs_function,
- f->descriptors, &obex_hs_ep_out_desc);
+ f->hs_descriptors, &obex_hs_ep_out_desc);
}
/* Avoid letting this gadget enumerate until the userspace
mod_data.protocol_type = USB_SC_SCSI;
mod_data.protocol_name = "Transparent SCSI";
- if (gadget_is_sh(fsg->gadget))
+ /* Some peripheral controllers are known not to be able to
+ * halt bulk endpoints correctly. If one of them is present,
+ * disable stalls.
+ */
+ if (gadget_is_sh(fsg->gadget) || gadget_is_at91(fsg->gadget))
mod_data.can_stall = 0;
if (mod_data.release == 0xffff) { // Parameter wasn't set
}
if (zlt)
tmp |= EP_QUEUE_HEAD_ZLT_SEL;
+
p_QH->max_pkt_length = cpu_to_le32(tmp);
+ p_QH->next_dtd_ptr = 1;
+ p_QH->size_ioc_int_sts = 0;
return;
}
* periodic_size can shrink by USBCMD update if hcc_params allows.
*/
ehci->periodic_size = DEFAULT_I_TDPS;
+ INIT_LIST_HEAD(&ehci->cached_itd_list);
if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0)
return retval;
ehci->reclaim = NULL;
ehci->next_uframe = -1;
+ ehci->clock_frame = -1;
/*
* dedicate a qh for the async ring head, since we couldn't unlink
static void ehci_mem_cleanup (struct ehci_hcd *ehci)
{
+ free_cached_itd_list(ehci);
if (ehci->async)
qh_put (ehci->async);
ehci->async = NULL;
is_in = (stream->bEndpointAddress & USB_DIR_IN) ? 0x10 : 0;
stream->bEndpointAddress &= 0x0f;
- stream->ep->hcpriv = NULL;
+ if (stream->ep)
+ stream->ep->hcpriv = NULL;
if (stream->rescheduled) {
ehci_info (ehci, "ep%d%s-iso rescheduled "
(stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
}
iso_stream_put (ehci, stream);
- /* OK to recycle this ITD now that its completion callback ran. */
+
done:
usb_put_urb(urb);
itd->urb = NULL;
- itd->stream = NULL;
- list_move(&itd->itd_list, &stream->free_list);
- iso_stream_put(ehci, stream);
-
+ if (ehci->clock_frame != itd->frame || itd->index[7] != -1) {
+ /* OK to recycle this ITD now. */
+ itd->stream = NULL;
+ list_move(&itd->itd_list, &stream->free_list);
+ iso_stream_put(ehci, stream);
+ } else {
+ /* HW might remember this ITD, so we can't recycle it yet.
+ * Move it to a safe place until a new frame starts.
+ */
+ list_move(&itd->itd_list, &ehci->cached_itd_list);
+ if (stream->refcount == 2) {
+ /* If iso_stream_put() were called here, stream
+ * would be freed. Instead, just prevent reuse.
+ */
+ stream->ep->hcpriv = NULL;
+ stream->ep = NULL;
+ }
+ }
return retval;
}
/*-------------------------------------------------------------------------*/
+static void free_cached_itd_list(struct ehci_hcd *ehci)
+{
+ struct ehci_itd *itd, *n;
+
+ list_for_each_entry_safe(itd, n, &ehci->cached_itd_list, itd_list) {
+ struct ehci_iso_stream *stream = itd->stream;
+ itd->stream = NULL;
+ list_move(&itd->itd_list, &stream->free_list);
+ iso_stream_put(ehci, stream);
+ }
+}
+
+/*-------------------------------------------------------------------------*/
+
static void
scan_periodic (struct ehci_hcd *ehci)
{
* Touches as few pages as possible: cache-friendly.
*/
now_uframe = ehci->next_uframe;
- if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
+ if (HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) {
clock = ehci_readl(ehci, &ehci->regs->frame_index);
- else
+ clock_frame = (clock >> 3) % ehci->periodic_size;
+ } else {
clock = now_uframe + mod - 1;
+ clock_frame = -1;
+ }
+ if (ehci->clock_frame != clock_frame) {
+ free_cached_itd_list(ehci);
+ ehci->clock_frame = clock_frame;
+ }
clock %= mod;
clock_frame = clock >> 3;
/* rescan the rest of this frame, then ... */
clock = now;
clock_frame = clock >> 3;
+ if (ehci->clock_frame != clock_frame) {
+ free_cached_itd_list(ehci);
+ ehci->clock_frame = clock_frame;
+ }
} else {
now_uframe++;
now_uframe %= mod;
int next_uframe; /* scan periodic, start here */
unsigned periodic_sched; /* periodic activity count */
+ /* list of itds completed while clock_frame was still active */
+ struct list_head cached_itd_list;
+ unsigned clock_frame;
+
/* per root hub port */
unsigned long reset_done [EHCI_MAX_ROOT_PORTS];
}
}
+static void free_cached_itd_list(struct ehci_hcd *ehci);
+
/*-------------------------------------------------------------------------*/
#include <linux/usb/ehci_def.h>
u32 revision;
musb->mregs += DAVINCI_BASE_OFFSET;
-#if 0
- /* REVISIT there's something odd about clocking, this
- * didn't appear do the job ...
- */
- musb->clock = clk_get(pDevice, "usb");
- if (IS_ERR(musb->clock))
- return PTR_ERR(musb->clock);
- status = clk_enable(musb->clock);
- if (status < 0)
- return -ENODEV;
-#endif
+ clk_enable(musb->clock);
/* returns zero if e.g. not clocked */
revision = musb_readl(tibase, DAVINCI_USB_VERSION_REG);
}
phy_off();
+
+ clk_disable(musb->clock);
+
return 0;
}
unsigned musb_debug;
-module_param(musb_debug, uint, S_IRUGO | S_IWUSR);
+module_param_named(debug, musb_debug, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug message level. Default = 0");
#define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia"
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case OTG_STATE_A_HOST:
case OTG_STATE_A_SUSPEND:
+ usb_hcd_resume_root_hub(musb_to_hcd(musb));
musb_root_disconnect(musb);
if (musb->a_wait_bcon != 0)
musb_platform_try_idle(musb, jiffies
#ifdef CONFIG_SYSFS
device_remove_file(musb->controller, &dev_attr_mode);
device_remove_file(musb->controller, &dev_attr_vbus);
-#ifdef CONFIG_USB_MUSB_OTG
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
device_remove_file(musb->controller, &dev_attr_srp);
#endif
#endif
#ifdef CONFIG_SYSFS
device_remove_file(musb->controller, &dev_attr_mode);
device_remove_file(musb->controller, &dev_attr_vbus);
-#ifdef CONFIG_USB_MUSB_OTG
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
device_remove_file(musb->controller, &dev_attr_srp);
#endif
#endif
return platform_driver_probe(&musb_driver, musb_probe);
}
-/* make us init after usbcore and before usb
- * gadget and host-side drivers start to register
+/* make us init after usbcore and i2c (transceivers, regulators, etc)
+ * and before usb gadget and host-side drivers start to register
*/
-subsys_initcall(musb_init);
+fs_initcall(musb_init);
static void __exit musb_cleanup(void)
{
struct usb_request *request = &req->request;
struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out;
void __iomem *epio = musb->endpoints[epnum].regs;
- u16 fifo_count = 0;
+ unsigned fifo_count = 0;
u16 len = musb_ep->packet_sz;
csr = musb_readw(epio, MUSB_RXCSR);
len, fifo_count,
musb_ep->packet_sz);
- fifo_count = min(len, fifo_count);
+ fifo_count = min_t(unsigned, len, fifo_count);
#ifdef CONFIG_USB_TUSB_OMAP_DMA
if (tusb_dma_omap() && musb_ep->dma) {
static struct musb_qh *
musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
{
- int is_in;
struct musb_hw_ep *ep = qh->hw_ep;
struct musb *musb = ep->musb;
+ int is_in = usb_pipein(urb->pipe);
int ready = qh->is_ready;
- if (ep->is_shared_fifo)
- is_in = 1;
- else
- is_in = usb_pipein(urb->pipe);
-
/* save toggle eagerly, for paranoia */
switch (qh->type) {
case USB_ENDPOINT_XFER_BULK:
else
qh = musb_giveback(qh, urb, urb->status);
- if (qh && qh->is_ready && !list_empty(&qh->hep->urb_list)) {
+ if (qh != NULL && qh->is_ready) {
DBG(4, "... next ep%d %cX urb %p\n",
hw_ep->epnum, is_in ? 'R' : 'T',
next_urb(qh));
switch (musb->ep0_stage) {
case MUSB_EP0_IN:
fifo_dest = urb->transfer_buffer + urb->actual_length;
- fifo_count = min(len, ((u16) (urb->transfer_buffer_length
- - urb->actual_length)));
+ fifo_count = min_t(size_t, len, urb->transfer_buffer_length -
+ urb->actual_length);
if (fifo_count < len)
urb->status = -EOVERFLOW;
}
/* FALLTHROUGH */
case MUSB_EP0_OUT:
- fifo_count = min(qh->maxpacket, ((u16)
- (urb->transfer_buffer_length
- - urb->actual_length)));
-
+ fifo_count = min_t(size_t, qh->maxpacket,
+ urb->transfer_buffer_length -
+ urb->actual_length);
if (fifo_count) {
fifo_dest = (u8 *) (urb->transfer_buffer
+ urb->actual_length);
struct urb *urb;
struct musb_hw_ep *hw_ep = musb->endpoints + epnum;
void __iomem *epio = hw_ep->regs;
- struct musb_qh *qh = hw_ep->out_qh;
+ struct musb_qh *qh = hw_ep->is_shared_fifo ? hw_ep->in_qh
+ : hw_ep->out_qh;
u32 status = 0;
void __iomem *mbase = musb->mregs;
struct dma_channel *dma;
* packets before updating TXCSR ... other docs disagree ...
*/
/* PIO: start next packet in this URB */
- wLength = min(qh->maxpacket, (u16) wLength);
+ if (wLength > qh->maxpacket)
+ wLength = qh->maxpacket;
musb_write_fifo(hw_ep, wLength, buf);
qh->segsize = wLength;
}
qh->type_reg = type_reg;
- /* precompute rxinterval/txinterval register */
- interval = min((u8)16, epd->bInterval); /* log encoding */
+ /* Precompute RXINTERVAL/TXINTERVAL register */
switch (qh->type) {
case USB_ENDPOINT_XFER_INT:
- /* fullspeed uses linear encoding */
- if (USB_SPEED_FULL == urb->dev->speed) {
- interval = epd->bInterval;
- if (!interval)
- interval = 1;
+ /*
+ * Full/low speeds use the linear encoding,
+ * high speed uses the logarithmic encoding.
+ */
+ if (urb->dev->speed <= USB_SPEED_FULL) {
+ interval = max_t(u8, epd->bInterval, 1);
+ break;
}
/* FALLTHROUGH */
case USB_ENDPOINT_XFER_ISOC:
- /* iso always uses log encoding */
+ /* ISO always uses logarithmic encoding */
+ interval = min_t(u8, epd->bInterval, 16);
break;
default:
/* REVISIT we actually want to use NAK limits, hinting to the
goto done;
/* Any URB not actively programmed into endpoint hardware can be
- * immediately given back. Such an URB must be at the head of its
+ * immediately given back; that's any URB not at the head of an
* endpoint queue, unless someday we get real DMA queues. And even
- * then, it might not be known to the hardware...
+ * if it's at the head, it might not be known to the hardware...
*
* Otherwise abort current transfer, pending dma, etc.; urb->status
* has already been updated. This is a synchronous abort; it'd be
qh->is_ready = 0;
__musb_giveback(musb, urb, 0);
qh->is_ready = ready;
+
+ /* If nothing else (usually musb_giveback) is using it
+ * and its URB list has emptied, recycle this qh.
+ */
+ if (ready && list_empty(&qh->hep->urb_list)) {
+ qh->hep->hcpriv = NULL;
+ list_del(&qh->ring);
+ kfree(qh);
+ }
} else
ret = musb_cleanup_urb(urb, qh, urb->pipe & USB_DIR_IN);
done:
unsigned long flags;
struct musb *musb = hcd_to_musb(hcd);
u8 is_in = epnum & USB_DIR_IN;
- struct musb_qh *qh = hep->hcpriv;
- struct urb *urb, *tmp;
+ struct musb_qh *qh;
+ struct urb *urb;
struct list_head *sched;
- if (!qh)
- return;
-
spin_lock_irqsave(&musb->lock, flags);
+ qh = hep->hcpriv;
+ if (qh == NULL)
+ goto exit;
+
switch (qh->type) {
case USB_ENDPOINT_XFER_CONTROL:
sched = &musb->control;
/* cleanup */
musb_cleanup_urb(urb, qh, urb->pipe & USB_DIR_IN);
- } else
- urb = NULL;
- /* then just nuke all the others */
- list_for_each_entry_safe_from(urb, tmp, &hep->urb_list, urb_list)
- musb_giveback(qh, urb, -ESHUTDOWN);
+ /* Then nuke all the others ... and advance the
+ * queue on hw_ep (e.g. bulk ring) when we're done.
+ */
+ while (!list_empty(&hep->urb_list)) {
+ urb = next_urb(qh);
+ urb->status = -ESHUTDOWN;
+ musb_advance_schedule(musb, urb, qh->hw_ep, is_in);
+ }
+ } else {
+ /* Just empty the queue; the hardware is busy with
+ * other transfers, and since !qh->is_ready nothing
+ * will activate any of these as it advances.
+ */
+ while (!list_empty(&hep->urb_list))
+ __musb_giveback(musb, next_urb(qh), -ESHUTDOWN);
+ hep->hcpriv = NULL;
+ list_del(&qh->ring);
+ kfree(qh);
+ }
+exit:
spin_unlock_irqrestore(&musb->lock, flags);
}
/* Ericsson products */
#define ERICSSON_VENDOR_ID 0x0bdb
-#define ERICSSON_PRODUCT_F3507G 0x1900
+#define ERICSSON_PRODUCT_F3507G_1 0x1900
+#define ERICSSON_PRODUCT_F3507G_2 0x1902
+
+#define BENQ_VENDOR_ID 0x04a5
+#define BENQ_PRODUCT_H10 0x4068
static struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
{ USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
{ USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
{ USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
- { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
+ { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G_1) },
+ { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G_2) },
+ { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
+ { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
"Genesys Logic",
"USB to IDE Optical",
US_SC_DEVICE, US_PR_DEVICE, NULL,
- US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ),
+ US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ),
UNUSUAL_DEV( 0x05e3, 0x0702, 0x0000, 0xffff,
"Genesys Logic",
"USB to IDE Disk",
US_SC_DEVICE, US_PR_DEVICE, NULL,
- US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ),
+ US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ),
/* Reported by Ben Efros <ben@pc-doctor.com> */
UNUSUAL_DEV( 0x05e3, 0x0723, 0x9451, 0x9451,
Say Y here if you want to connect 1-wire
simple 64bit memory rom(ds2401/ds2411/ds1990*) to your wire.
+config W1_SLAVE_DS2431
+ tristate "1kb EEPROM family support (DS2431)"
+ help
+ Say Y here if you want to use a 1-wire
+ 1kb EEPROM family device (DS2431)
+
config W1_SLAVE_DS2433
tristate "4kb EEPROM family support (DS2433)"
help
obj-$(CONFIG_W1_SLAVE_THERM) += w1_therm.o
obj-$(CONFIG_W1_SLAVE_SMEM) += w1_smem.o
+obj-$(CONFIG_W1_SLAVE_DS2431) += w1_ds2431.o
obj-$(CONFIG_W1_SLAVE_DS2433) += w1_ds2433.o
obj-$(CONFIG_W1_SLAVE_DS2760) += w1_ds2760.o
obj-$(CONFIG_W1_SLAVE_BQ27000) += w1_bq27000.o
*/
static int w1_f23_write(struct w1_slave *sl, int addr, int len, const u8 *data)
{
+#ifdef CONFIG_W1_SLAVE_DS2433_CRC
+ struct w1_f23_data *f23 = sl->family_data;
+#endif
u8 wrbuf[4];
u8 rdbuf[W1_PAGE_SIZE + 3];
u8 es = (addr + len - 1) & 0x1f;
/* Reset the bus to wake up the EEPROM (this may not be needed) */
w1_reset_bus(sl->master);
-
+#ifdef CONFIG_W1_SLAVE_DS2433_CRC
+ f23->validcrc &= ~(1 << (addr >> W1_PAGE_BITS));
+#endif
return 0;
}
/* 0x00 */
COMPATIBLE_IOCTL(FIBMAP)
COMPATIBLE_IOCTL(FIGETBSZ)
+/* 'X' - originally XFS but some now in the VFS */
+COMPATIBLE_IOCTL(FIFREEZE)
+COMPATIBLE_IOCTL(FITHAW)
/* RAID */
COMPATIBLE_IOCTL(RAID_VERSION)
COMPATIBLE_IOCTL(GET_ARRAY_INFO)
iput(inode);
return res;
}
-EXPORT_SYMBOL_GPL(d_obtain_alias);
+EXPORT_SYMBOL(d_obtain_alias);
/**
* d_splice_alias - splice a disconnected dentry into the tree if one exists
spin_unlock(&c->erase_completion_lock);
- /* This thread is purely an optimisation. But if it runs when
- other things could be running, it actually makes things a
- lot worse. Use yield() and put it at the back of the runqueue
- every time. Especially during boot, pulling an inode in
- with read_inode() is much preferable to having the GC thread
- get there first. */
- yield();
+ /* Problem - immediately after bootup, the GCD spends a lot
+ * of time in places like jffs2_kill_fragtree(); so much so
+ * that userspace processes (like gdm and X) are starved
+ * despite plenty of cond_resched()s and renicing. Yield()
+ * doesn't help, either (presumably because userspace and GCD
+ * are generally competing for a higher latency resource -
+ * disk).
+ * This forces the GCD to slow the hell down. Pulling an
+ * inode in with read_inode() is much preferable to having
+ * the GC thread get there first. */
+ schedule_timeout_interruptible(msecs_to_jiffies(50));
/* Put_super will send a SIGKILL and then wait on the sem.
*/
struct jffs2_tmp_dnode_info *tn)
{
uint32_t fn_end = tn->fn->ofs + tn->fn->size;
- struct jffs2_tmp_dnode_info *this;
+ struct jffs2_tmp_dnode_info *this, *ptn;
dbg_readinode("insert fragment %#04x-%#04x, ver %u at %08x\n", tn->fn->ofs, fn_end, tn->version, ref_offset(tn->fn->raw));
if (this) {
/* If the node is coincident with another at a lower address,
back up until the other node is found. It may be relevant */
- while (this->overlapped)
- this = tn_prev(this);
-
- /* First node should never be marked overlapped */
- BUG_ON(!this);
+ while (this->overlapped) {
+ ptn = tn_prev(this);
+ if (!ptn) {
+ /*
+ * We killed a node which set the overlapped
+ * flags during the scan. Fix it up.
+ */
+ this->overlapped = 0;
+ break;
+ }
+ this = ptn;
+ }
dbg_readinode("'this' found %#04x-%#04x (%s)\n", this->fn->ofs, this->fn->ofs + this->fn->size, this->fn ? "data" : "hole");
}
}
if (!this->overlapped)
break;
- this = tn_prev(this);
+
+ ptn = tn_prev(this);
+ if (!ptn) {
+ /*
+ * We killed a node which set the overlapped
+ * flags during the scan. Fix it up.
+ */
+ this->overlapped = 0;
+ break;
+ }
+ this = ptn;
}
}
eat_last(&rii->tn_root, &last->rb);
ver_insert(&ver_root, last);
- if (unlikely(last->overlapped))
- continue;
+ if (unlikely(last->overlapped)) {
+ if (pen)
+ continue;
+ /*
+ * We killed a node which set the overlapped
+ * flags during the scan. Fix it up.
+ */
+ last->overlapped = 0;
+ }
/* Now we have a bunch of nodes in reverse version
order, in the tree at ver_root. Most of the time,
return ret;
}
+static int ocfs2_replace_extent_rec(struct inode *inode,
+ handle_t *handle,
+ struct ocfs2_path *path,
+ struct ocfs2_extent_list *el,
+ int split_index,
+ struct ocfs2_extent_rec *split_rec)
+{
+ int ret;
+
+ ret = ocfs2_path_bh_journal_access(handle, inode, path,
+ path_num_items(path) - 1);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ el->l_recs[split_index] = *split_rec;
+
+ ocfs2_journal_dirty(handle, path_leaf_bh(path));
+out:
+ return ret;
+}
+
/*
* Mark part or all of the extent record at split_index in the leaf
* pointed to by path as written. This removes the unwritten
if (ctxt.c_contig_type == CONTIG_NONE) {
if (ctxt.c_split_covers_rec)
- el->l_recs[split_index] = *split_rec;
+ ret = ocfs2_replace_extent_rec(inode, handle,
+ path, el,
+ split_index, split_rec);
else
ret = ocfs2_split_and_insert(inode, handle, path, et,
&last_eb_bh, split_index,
if (!mle) {
if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN &&
res->owner != assert->node_idx) {
- mlog(ML_ERROR, "assert_master from "
- "%u, but current owner is "
- "%u! (%.*s)\n",
- assert->node_idx, res->owner,
- namelen, name);
- goto kill;
+ mlog(ML_ERROR, "DIE! Mastery assert from %u, "
+ "but current owner is %u! (%.*s)\n",
+ assert->node_idx, res->owner, namelen,
+ name);
+ __dlm_print_one_lock_resource(res);
+ BUG();
}
} else if (mle->type != DLM_MLE_MIGRATION) {
if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN) {
spin_lock(&res->spinlock);
/* This ensures that clear refmap is sent after the set */
- __dlm_wait_on_lockres_flags(res, (DLM_LOCK_RES_SETREF_INPROG |
- DLM_LOCK_RES_MIGRATING));
+ __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG);
spin_unlock(&res->spinlock);
/* clear our bit from the master's refmap, ignore errors */
else
BUG_ON(res->owner == dlm->node_num);
- spin_lock(&dlm->spinlock);
+ spin_lock(&dlm->ast_lock);
/* We want to be sure that we're not freeing a lock
* that still has AST's pending... */
in_use = !list_empty(&lock->ast_list);
- spin_unlock(&dlm->spinlock);
+ spin_unlock(&dlm->ast_lock);
if (in_use) {
mlog(ML_ERROR, "lockres %.*s: Someone is calling dlmunlock "
"while waiting for an ast!", res->lockname.len,
struct ocfs2_lock_res *lockres);
static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
int convert);
-#define ocfs2_log_dlm_error(_func, _err, _lockres) do { \
- mlog(ML_ERROR, "DLM error %d while calling %s on resource %s\n", \
- _err, _func, _lockres->l_name); \
+#define ocfs2_log_dlm_error(_func, _err, _lockres) do { \
+ if ((_lockres)->l_type != OCFS2_LOCK_TYPE_DENTRY) \
+ mlog(ML_ERROR, "DLM error %d while calling %s on resource %s\n", \
+ _err, _func, _lockres->l_name); \
+ else \
+ mlog(ML_ERROR, "DLM error %d while calling %s on resource %.*s%08x\n", \
+ _err, _func, OCFS2_DENTRY_LOCK_INO_START - 1, (_lockres)->l_name, \
+ (unsigned int)ocfs2_get_dentry_lock_ino(_lockres)); \
} while (0)
static int ocfs2_downconvert_thread(void *arg);
static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb,
struct ocfs2_node_map osb_recovering_orphan_dirs;
unsigned int *osb_orphan_wipes;
wait_queue_head_t osb_wipe_event;
+
+ /* used to protect metaecc calculation check of xattr. */
+ spinlock_t osb_xattr_lock;
};
#define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)
unlock_buffer(*bh);
ll_rw_block(READ, 1, bh);
wait_on_buffer(*bh);
+ if (!buffer_uptodate(*bh)) {
+ mlog_errno(-EIO);
+ brelse(*bh);
+ *bh = NULL;
+ return -EIO;
+ }
+
return 0;
}
INIT_LIST_HEAD(&osb->blocked_lock_list);
osb->blocked_lock_count = 0;
spin_lock_init(&osb->osb_lock);
+ spin_lock_init(&osb->osb_xattr_lock);
ocfs2_init_inode_steal_slot(osb);
atomic_set(&osb->alloc_stats.moves, 0);
#define OCFS2_XATTR_ROOT_SIZE (sizeof(struct ocfs2_xattr_def_value_root))
#define OCFS2_XATTR_INLINE_SIZE 80
+#define OCFS2_XATTR_HEADER_GAP 4
#define OCFS2_XATTR_FREE_IN_IBODY (OCFS2_MIN_XATTR_INLINE_SIZE \
- sizeof(struct ocfs2_xattr_header) \
- - sizeof(__u32))
+ - OCFS2_XATTR_HEADER_GAP)
#define OCFS2_XATTR_FREE_IN_BLOCK(ptr) ((ptr)->i_sb->s_blocksize \
- sizeof(struct ocfs2_xattr_block) \
- sizeof(struct ocfs2_xattr_header) \
- - sizeof(__u32))
+ - OCFS2_XATTR_HEADER_GAP)
static struct ocfs2_xattr_def_value_root def_xv = {
.xv.xr_list.l_count = cpu_to_le16(1),
bucket->bu_blocks, bucket->bu_bhs, 0,
NULL);
if (!rc) {
+ spin_lock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
bucket->bu_bhs,
bucket->bu_blocks,
&bucket_xh(bucket)->xh_check);
+ spin_unlock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
if (rc)
mlog_errno(rc);
}
{
int i;
+ spin_lock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
bucket->bu_bhs, bucket->bu_blocks,
&bucket_xh(bucket)->xh_check);
+ spin_unlock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
for (i = 0; i < bucket->bu_blocks; i++)
ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
last += 1;
}
- free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+ free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
if (free < 0)
return -EIO;
last += 1;
}
- free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+ free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
if (free < 0)
return 0;
if (!ret) {
/* Update inode ctime. */
- ret = ocfs2_journal_access(ctxt->handle, inode, xis->inode_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(ctxt->handle, inode,
+ xis->inode_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
xh_free_start = le16_to_cpu(xh->xh_free_start);
header_size = sizeof(struct ocfs2_xattr_header) +
count * sizeof(struct ocfs2_xattr_entry);
- max_free = OCFS2_XATTR_BUCKET_SIZE -
- le16_to_cpu(xh->xh_name_value_len) - header_size;
+ max_free = OCFS2_XATTR_BUCKET_SIZE - header_size -
+ le16_to_cpu(xh->xh_name_value_len) - OCFS2_XATTR_HEADER_GAP;
mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
"of %u which exceed block size\n",
need = 0;
}
- free = xh_free_start - header_size;
+ free = xh_free_start - header_size - OCFS2_XATTR_HEADER_GAP;
/*
* We need to make sure the new name/value pair
* can exist in the same block.
}
xh_free_start = le16_to_cpu(xh->xh_free_start);
- free = xh_free_start - header_size;
+ free = xh_free_start - header_size
+ - OCFS2_XATTR_HEADER_GAP;
if (xh_free_start % blocksize < need)
free -= xh_free_start % blocksize;
* See Documentation/io_mapping.txt
*/
-/* this struct isn't actually defined anywhere */
-struct io_mapping;
-
#ifdef CONFIG_HAVE_ATOMIC_IOMAP
+struct io_mapping {
+ resource_size_t base;
+ unsigned long size;
+ pgprot_t prot;
+};
+
/*
* For small address space machines, mapping large objects
* into the kernel virtual space isn't practical. Where
*/
static inline struct io_mapping *
-io_mapping_create_wc(unsigned long base, unsigned long size)
+io_mapping_create_wc(resource_size_t base, unsigned long size)
{
- return (struct io_mapping *) base;
+ struct io_mapping *iomap;
+
+ if (!is_io_mapping_possible(base, size))
+ return NULL;
+
+ iomap = kmalloc(sizeof(*iomap), GFP_KERNEL);
+ if (!iomap)
+ return NULL;
+
+ iomap->base = base;
+ iomap->size = size;
+ iomap->prot = pgprot_writecombine(__pgprot(__PAGE_KERNEL));
+ return iomap;
}
static inline void
io_mapping_free(struct io_mapping *mapping)
{
+ kfree(mapping);
}
/* Atomic map/unmap */
static inline void *
io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
{
- offset += (unsigned long) mapping;
- return iomap_atomic_prot_pfn(offset >> PAGE_SHIFT, KM_USER0,
- __pgprot(__PAGE_KERNEL_WC));
+ resource_size_t phys_addr;
+ unsigned long pfn;
+
+ BUG_ON(offset >= mapping->size);
+ phys_addr = mapping->base + offset;
+ pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
+ return iomap_atomic_prot_pfn(pfn, KM_USER0, mapping->prot);
}
static inline void
static inline void *
io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
{
- offset += (unsigned long) mapping;
- return ioremap_wc(offset, PAGE_SIZE);
+ BUG_ON(offset >= mapping->size);
+ resource_size_t phys_addr = mapping->base + offset;
+ return ioremap_wc(phys_addr, PAGE_SIZE);
}
static inline void
#else
+/* this struct isn't actually defined anywhere */
+struct io_mapping;
+
/* Create the io_mapping object*/
static inline struct io_mapping *
-io_mapping_create_wc(unsigned long base, unsigned long size)
+io_mapping_create_wc(resource_size_t base, unsigned long size)
{
return (struct io_mapping *) ioremap_wc(base, size);
}
#define TRACE_FORMAT(name, proto, args, fmt) \
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
+#define TRACE_EVENT_FORMAT(name, proto, args, fmt, struct, tpfmt) \
+ TRACE_FORMAT(name, PARAMS(proto), PARAMS(args), PARAMS(fmt))
+
#endif
struct kref kref;
struct hlist_head uidhash_table[UIDHASH_SZ];
struct user_struct *creator;
+ struct work_struct destroyer;
};
extern struct user_namespace init_user_ns;
# error Unless you know what you are doing.
#endif
-TRACE_FORMAT(irq_handler_entry,
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM irq
+
+TRACE_EVENT_FORMAT(irq_handler_entry,
TPPROTO(int irq, struct irqaction *action),
TPARGS(irq, action),
- TPFMT("irq=%d handler=%s", irq, action->name));
+ TPFMT("irq=%d handler=%s", irq, action->name),
+ TRACE_STRUCT(
+ TRACE_FIELD(int, irq, irq)
+ ),
+ TPRAWFMT("irq %d")
+ );
-TRACE_FORMAT(irq_handler_exit,
+TRACE_EVENT_FORMAT(irq_handler_exit,
TPPROTO(int irq, struct irqaction *action, int ret),
TPARGS(irq, action, ret),
TPFMT("irq=%d handler=%s return=%s",
- irq, action->name, ret ? "handled" : "unhandled"));
+ irq, action->name, ret ? "handled" : "unhandled"),
+ TRACE_STRUCT(
+ TRACE_FIELD(int, irq, irq)
+ TRACE_FIELD(int, ret, ret)
+ ),
+ TPRAWFMT("irq %d ret %d")
+ );
+
+#undef TRACE_SYSTEM
/* use <trace/sched.h> instead */
-#ifndef TRACE_FORMAT
+#ifndef TRACE_EVENT_FORMAT
# error Do not include this file directly.
# error Unless you know what you are doing.
#endif
-TRACE_FORMAT(sched_kthread_stop,
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM sched
+
+TRACE_EVENT_FORMAT(sched_kthread_stop,
TPPROTO(struct task_struct *t),
TPARGS(t),
- TPFMT("task %s:%d", t->comm, t->pid));
+ TPFMT("task %s:%d", t->comm, t->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, t->pid)
+ ),
+ TPRAWFMT("task %d")
+ );
-TRACE_FORMAT(sched_kthread_stop_ret,
+TRACE_EVENT_FORMAT(sched_kthread_stop_ret,
TPPROTO(int ret),
TPARGS(ret),
- TPFMT("ret=%d", ret));
+ TPFMT("ret=%d", ret),
+ TRACE_STRUCT(
+ TRACE_FIELD(int, ret, ret)
+ ),
+ TPRAWFMT("ret=%d")
+ );
-TRACE_FORMAT(sched_wait_task,
+TRACE_EVENT_FORMAT(sched_wait_task,
TPPROTO(struct rq *rq, struct task_struct *p),
TPARGS(rq, p),
- TPFMT("task %s:%d", p->comm, p->pid));
+ TPFMT("task %s:%d", p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("task %d")
+ );
-TRACE_FORMAT(sched_wakeup,
+TRACE_EVENT_FORMAT(sched_wakeup,
TPPROTO(struct rq *rq, struct task_struct *p, int success),
TPARGS(rq, p, success),
TPFMT("task %s:%d %s",
- p->comm, p->pid, success?"succeeded":"failed"));
+ p->comm, p->pid, success ? "succeeded" : "failed"),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ TRACE_FIELD(int, success, success)
+ ),
+ TPRAWFMT("task %d success=%d")
+ );
-TRACE_FORMAT(sched_wakeup_new,
+TRACE_EVENT_FORMAT(sched_wakeup_new,
TPPROTO(struct rq *rq, struct task_struct *p, int success),
TPARGS(rq, p, success),
TPFMT("task %s:%d",
- p->comm, p->pid, success?"succeeded":"failed"));
+ p->comm, p->pid, success ? "succeeded" : "failed"),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ TRACE_FIELD(int, success, success)
+ ),
+ TPRAWFMT("task %d success=%d")
+ );
-TRACE_FORMAT(sched_switch,
+TRACE_EVENT_FORMAT(sched_switch,
TPPROTO(struct rq *rq, struct task_struct *prev,
struct task_struct *next),
TPARGS(rq, prev, next),
TPFMT("task %s:%d ==> %s:%d",
- prev->comm, prev->pid, next->comm, next->pid));
+ prev->comm, prev->pid, next->comm, next->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, prev_pid, prev->pid)
+ TRACE_FIELD(int, prev_prio, prev->prio)
+ TRACE_FIELD(pid_t, next_pid, next->pid)
+ TRACE_FIELD(int, next_prio, next->prio)
+ ),
+ TPRAWFMT("prev %d:%d ==> next %d:%d")
+ );
-TRACE_FORMAT(sched_migrate_task,
+TRACE_EVENT_FORMAT(sched_migrate_task,
TPPROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
TPARGS(p, orig_cpu, dest_cpu),
TPFMT("task %s:%d from: %d to: %d",
- p->comm, p->pid, orig_cpu, dest_cpu));
+ p->comm, p->pid, orig_cpu, dest_cpu),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ TRACE_FIELD(int, orig_cpu, orig_cpu)
+ TRACE_FIELD(int, dest_cpu, dest_cpu)
+ ),
+ TPRAWFMT("task %d from: %d to: %d")
+ );
-TRACE_FORMAT(sched_process_free,
+TRACE_EVENT_FORMAT(sched_process_free,
TPPROTO(struct task_struct *p),
TPARGS(p),
- TPFMT("task %s:%d", p->comm, p->pid));
+ TPFMT("task %s:%d", p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("task %d")
+ );
-TRACE_FORMAT(sched_process_exit,
+TRACE_EVENT_FORMAT(sched_process_exit,
TPPROTO(struct task_struct *p),
TPARGS(p),
- TPFMT("task %s:%d", p->comm, p->pid));
+ TPFMT("task %s:%d", p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("task %d")
+ );
-TRACE_FORMAT(sched_process_wait,
+TRACE_EVENT_FORMAT(sched_process_wait,
TPPROTO(struct pid *pid),
TPARGS(pid),
- TPFMT("pid %d", pid));
+ TPFMT("pid %d", pid_nr(pid)),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, pid, pid_nr(pid))
+ ),
+ TPRAWFMT("task %d")
+ );
-TRACE_FORMAT(sched_process_fork,
+TRACE_EVENT_FORMAT(sched_process_fork,
TPPROTO(struct task_struct *parent, struct task_struct *child),
TPARGS(parent, child),
TPFMT("parent %s:%d child %s:%d",
- parent->comm, parent->pid, child->comm, child->pid));
+ parent->comm, parent->pid, child->comm, child->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(pid_t, parent, parent->pid)
+ TRACE_FIELD(pid_t, child, child->pid)
+ ),
+ TPRAWFMT("parent %d child %d")
+ );
-TRACE_FORMAT(sched_signal_send,
+TRACE_EVENT_FORMAT(sched_signal_send,
TPPROTO(int sig, struct task_struct *p),
TPARGS(sig, p),
- TPFMT("sig: %d task %s:%d", sig, p->comm, p->pid));
+ TPFMT("sig: %d task %s:%d", sig, p->comm, p->pid),
+ TRACE_STRUCT(
+ TRACE_FIELD(int, sig, sig)
+ TRACE_FIELD(pid_t, pid, p->pid)
+ ),
+ TPRAWFMT("sig: %d task %d")
+ );
+
+#undef TRACE_SYSTEM
--- /dev/null
+/* trace/<type>_event_types.h here */
+
+#include <trace/sched_event_types.h>
+#include <trace/irq_event_types.h>
--- /dev/null
+/* trace/<type>.h here */
+
+#include <trace/sched.h>
+#include <trace/irq.h>
/*
* This is the place to register all trace points as events.
- * Include the trace/<type>.h at the top.
- * Include the trace/<type>_event_types.h at the bottom.
*/
-/* trace/<type>.h here */
-#include <trace/sched.h>
-#include <trace/irq.h>
+/* someday this needs to go in a generic header */
+#define __STR(x) #x
+#define STR(x) __STR(x)
-#include "trace_events.h"
+#include <trace/trace_events.h>
-/* trace/<type>_event_types.h here */
-#include <trace/sched_event_types.h>
-#include <trace/irq_event_types.h>
+#include "trace_output.h"
+
+#include "trace_events_stage_1.h"
+#include "trace_events_stage_2.h"
+#include "trace_events_stage_3.h"
+
+#include <trace/trace_event_types.h>
trace_wake_up();
}
+struct ring_buffer_event *
+trace_current_buffer_lock_reserve(unsigned char type, unsigned long len,
+ unsigned long flags, int pc)
+{
+ return trace_buffer_lock_reserve(&global_trace,
+ type, len, flags, pc);
+}
+
+void trace_current_buffer_unlock_commit(struct ring_buffer_event *event,
+ unsigned long flags, int pc)
+{
+ return trace_buffer_unlock_commit(&global_trace, event, flags, pc);
+}
+
void
trace_function(struct trace_array *tr,
unsigned long ip, unsigned long parent_ip, unsigned long flags,
for (cnt = 0; opts[cnt].name; cnt++)
;
- topts = kzalloc(sizeof(*topts) * (cnt + 1), GFP_KERNEL);
+ topts = kcalloc(cnt + 1, sizeof(*topts), GFP_KERNEL);
if (!topts)
return NULL;
struct ring_buffer_event *event,
unsigned long flags, int pc);
+struct ring_buffer_event *
+trace_current_buffer_lock_reserve(unsigned char type, unsigned long len,
+ unsigned long flags, int pc);
+void trace_current_buffer_unlock_commit(struct ring_buffer_event *event,
+ unsigned long flags, int pc);
+
struct trace_entry *tracing_get_trace_entry(struct trace_array *tr,
struct trace_array_cpu *data);
}
#endif /* CONFIG_BRANCH_TRACER */
+/* trace event type bit fields, not numeric */
+enum {
+ TRACE_EVENT_TYPE_PRINTF = 1,
+ TRACE_EVENT_TYPE_RAW = 2,
+};
+
+struct ftrace_event_call {
+ char *name;
+ char *system;
+ struct dentry *dir;
+ int enabled;
+ int (*regfunc)(void);
+ void (*unregfunc)(void);
+ int id;
+ struct dentry *raw_dir;
+ int raw_enabled;
+ int type;
+ int (*raw_init)(void);
+ int (*raw_reg)(void);
+ void (*raw_unreg)(void);
+};
+
+void event_trace_printk(unsigned long ip, const char *fmt, ...);
+extern struct ftrace_event_call __start_ftrace_events[];
+extern struct ftrace_event_call __stop_ftrace_events[];
+
#endif /* _LINUX_KERNEL_TRACE_H */
#include <linux/module.h>
#include <linux/ctype.h>
-#include "trace_events.h"
+#include "trace.h"
+
+#define TRACE_SYSTEM "TRACE_SYSTEM"
#define events_for_each(event) \
for (event = __start_ftrace_events; \
}
}
+static void ftrace_event_enable_disable(struct ftrace_event_call *call,
+ int enable)
+{
+
+ switch (enable) {
+ case 0:
+ if (call->enabled) {
+ call->enabled = 0;
+ call->unregfunc();
+ }
+ if (call->raw_enabled) {
+ call->raw_enabled = 0;
+ call->raw_unreg();
+ }
+ break;
+ case 1:
+ if (!call->enabled &&
+ (call->type & TRACE_EVENT_TYPE_PRINTF)) {
+ call->enabled = 1;
+ call->regfunc();
+ }
+ if (!call->raw_enabled &&
+ (call->type & TRACE_EVENT_TYPE_RAW)) {
+ call->raw_enabled = 1;
+ call->raw_reg();
+ }
+ break;
+ }
+}
+
static int ftrace_set_clr_event(char *buf, int set)
{
struct ftrace_event_call *call = __start_ftrace_events;
-
+ char *event = NULL, *sub = NULL, *match;
+ int ret = -EINVAL;
+
+ /*
+ * The buf format can be <subsystem>:<event-name>
+ * *:<event-name> means any event by that name.
+ * :<event-name> is the same.
+ *
+ * <subsystem>:* means all events in that subsystem
+ * <subsystem>: means the same.
+ *
+ * <name> (no ':') means all events in a subsystem with
+ * the name <name> or any event that matches <name>
+ */
+
+ match = strsep(&buf, ":");
+ if (buf) {
+ sub = match;
+ event = buf;
+ match = NULL;
+
+ if (!strlen(sub) || strcmp(sub, "*") == 0)
+ sub = NULL;
+ if (!strlen(event) || strcmp(event, "*") == 0)
+ event = NULL;
+ }
events_for_each(call) {
if (!call->name)
continue;
- if (strcmp(buf, call->name) != 0)
+ if (match &&
+ strcmp(match, call->name) != 0 &&
+ strcmp(match, call->system) != 0)
continue;
- if (set) {
- /* Already set? */
- if (call->enabled)
- return 0;
- call->enabled = 1;
- call->regfunc();
- } else {
- /* Already cleared? */
- if (!call->enabled)
- return 0;
- call->enabled = 0;
- call->unregfunc();
- }
- return 0;
+ if (sub && strcmp(sub, call->system) != 0)
+ continue;
+
+ if (event && strcmp(event, call->name) != 0)
+ continue;
+
+ ftrace_event_enable_disable(call, set);
+
+ ret = 0;
}
- return -EINVAL;
+ return ret;
}
/* 128 should be much more than enough */
{
struct ftrace_event_call *call = v;
+ if (strcmp(call->system, TRACE_SYSTEM) != 0)
+ seq_printf(m, "%s:", call->system);
seq_printf(m, "%s\n", call->name);
return 0;
struct ftrace_event_call *call = filp->private_data;
char *buf;
- if (call->enabled)
+ if (call->enabled || call->raw_enabled)
buf = "1\n";
else
buf = "0\n";
switch (val) {
case 0:
- if (!call->enabled)
- break;
-
- call->enabled = 0;
- call->unregfunc();
- break;
case 1:
- if (call->enabled)
- break;
-
- call->enabled = 1;
- call->regfunc();
+ ftrace_event_enable_disable(call, val);
break;
default:
return cnt;
}
+static ssize_t
+event_type_read(struct file *filp, char __user *ubuf, size_t cnt,
+ loff_t *ppos)
+{
+ struct ftrace_event_call *call = filp->private_data;
+ char buf[16];
+ int r = 0;
+
+ if (call->type & TRACE_EVENT_TYPE_PRINTF)
+ r += sprintf(buf, "printf\n");
+
+ if (call->type & TRACE_EVENT_TYPE_RAW)
+ r += sprintf(buf+r, "raw\n");
+
+ return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
+}
+
+static ssize_t
+event_type_write(struct file *filp, const char __user *ubuf, size_t cnt,
+ loff_t *ppos)
+{
+ struct ftrace_event_call *call = filp->private_data;
+ char buf[64];
+
+ /*
+ * If there's only one type, we can't change it.
+ * And currently we always have printf type, and we
+ * may or may not have raw type.
+ *
+ * This is a redundant check, the file should be read
+ * only if this is the case anyway.
+ */
+
+ if (!call->raw_init)
+ return -EPERM;
+
+ if (cnt >= sizeof(buf))
+ return -EINVAL;
+
+ if (copy_from_user(&buf, ubuf, cnt))
+ return -EFAULT;
+
+ buf[cnt] = 0;
+
+ if (!strncmp(buf, "printf", 6) &&
+ (!buf[6] || isspace(buf[6]))) {
+
+ call->type = TRACE_EVENT_TYPE_PRINTF;
+
+ /*
+ * If raw enabled, the disable it and enable
+ * printf type.
+ */
+ if (call->raw_enabled) {
+ call->raw_enabled = 0;
+ call->raw_unreg();
+
+ call->enabled = 1;
+ call->regfunc();
+ }
+
+ } else if (!strncmp(buf, "raw", 3) &&
+ (!buf[3] || isspace(buf[3]))) {
+
+ call->type = TRACE_EVENT_TYPE_RAW;
+
+ /*
+ * If printf enabled, the disable it and enable
+ * raw type.
+ */
+ if (call->enabled) {
+ call->enabled = 0;
+ call->unregfunc();
+
+ call->raw_enabled = 1;
+ call->raw_reg();
+ }
+ } else
+ return -EINVAL;
+
+ *ppos += cnt;
+
+ return cnt;
+}
+
+static ssize_t
+event_available_types_read(struct file *filp, char __user *ubuf, size_t cnt,
+ loff_t *ppos)
+{
+ struct ftrace_event_call *call = filp->private_data;
+ char buf[16];
+ int r = 0;
+
+ r += sprintf(buf, "printf\n");
+
+ if (call->raw_init)
+ r += sprintf(buf+r, "raw\n");
+
+ return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
+}
+
static const struct seq_operations show_event_seq_ops = {
.start = t_start,
.next = t_next,
.write = event_enable_write,
};
+static const struct file_operations ftrace_type_fops = {
+ .open = tracing_open_generic,
+ .read = event_type_read,
+ .write = event_type_write,
+};
+
+static const struct file_operations ftrace_available_types_fops = {
+ .open = tracing_open_generic,
+ .read = event_available_types_read,
+};
+
static struct dentry *event_trace_events_dir(void)
{
static struct dentry *d_tracer;
return d_events;
}
+struct event_subsystem {
+ struct list_head list;
+ const char *name;
+ struct dentry *entry;
+};
+
+static LIST_HEAD(event_subsystems);
+
+static struct dentry *
+event_subsystem_dir(const char *name, struct dentry *d_events)
+{
+ struct event_subsystem *system;
+
+ /* First see if we did not already create this dir */
+ list_for_each_entry(system, &event_subsystems, list) {
+ if (strcmp(system->name, name) == 0)
+ return system->entry;
+ }
+
+ /* need to create new entry */
+ system = kmalloc(sizeof(*system), GFP_KERNEL);
+ if (!system) {
+ pr_warning("No memory to create event subsystem %s\n",
+ name);
+ return d_events;
+ }
+
+ system->entry = debugfs_create_dir(name, d_events);
+ if (!system->entry) {
+ pr_warning("Could not create event subsystem %s\n",
+ name);
+ kfree(system);
+ return d_events;
+ }
+
+ system->name = name;
+ list_add(&system->list, &event_subsystems);
+
+ return system->entry;
+}
+
static int
event_create_dir(struct ftrace_event_call *call, struct dentry *d_events)
{
struct dentry *entry;
+ int ret;
+
+ /*
+ * If the trace point header did not define TRACE_SYSTEM
+ * then the system would be called "TRACE_SYSTEM".
+ */
+ if (strcmp(call->system, "TRACE_SYSTEM") != 0)
+ d_events = event_subsystem_dir(call->system, d_events);
+
+ if (call->raw_init) {
+ ret = call->raw_init();
+ if (ret < 0) {
+ pr_warning("Could not initialize trace point"
+ " events/%s\n", call->name);
+ return ret;
+ }
+ }
+
+ /* default the output to printf */
+ call->type = TRACE_EVENT_TYPE_PRINTF;
call->dir = debugfs_create_dir(call->name, d_events);
if (!call->dir) {
pr_warning("Could not create debugfs "
"'%s/enable' entry\n", call->name);
+ /* Only let type be writable, if we can change it */
+ entry = debugfs_create_file("type",
+ call->raw_init ? 0644 : 0444,
+ call->dir, call,
+ &ftrace_type_fops);
+ if (!entry)
+ pr_warning("Could not create debugfs "
+ "'%s/type' entry\n", call->name);
+
+ entry = debugfs_create_file("available_types", 0444, call->dir, call,
+ &ftrace_available_types_fops);
+ if (!entry)
+ pr_warning("Could not create debugfs "
+ "'%s/type' available_types\n", call->name);
+
return 0;
}
+++ /dev/null
-#ifndef _LINUX_KERNEL_TRACE_EVENTS_H
-#define _LINUX_KERNEL_TRACE_EVENTS_H
-
-#include <linux/debugfs.h>
-#include <linux/ftrace.h>
-#include "trace.h"
-
-struct ftrace_event_call {
- char *name;
- struct dentry *dir;
- int enabled;
- int (*regfunc)(void);
- void (*unregfunc)(void);
-};
-
-
-#undef TPFMT
-#define TPFMT(fmt, args...) fmt "\n", ##args
-
-#undef TRACE_FORMAT
-#define TRACE_FORMAT(call, proto, args, fmt) \
-static void ftrace_event_##call(proto) \
-{ \
- event_trace_printk(_RET_IP_, "(" #call ") " fmt); \
-} \
- \
-static int ftrace_reg_event_##call(void) \
-{ \
- int ret; \
- \
- ret = register_trace_##call(ftrace_event_##call); \
- if (!ret) \
- pr_info("event trace: Could not activate trace point " \
- "probe to " #call); \
- return ret; \
-} \
- \
-static void ftrace_unreg_event_##call(void) \
-{ \
- unregister_trace_##call(ftrace_event_##call); \
-} \
- \
-static struct ftrace_event_call __used \
-__attribute__((__aligned__(4))) \
-__attribute__((section("_ftrace_events"))) event_##call = { \
- .name = #call, \
- .regfunc = ftrace_reg_event_##call, \
- .unregfunc = ftrace_unreg_event_##call, \
-}
-
-void event_trace_printk(unsigned long ip, const char *fmt, ...);
-extern struct ftrace_event_call __start_ftrace_events[];
-extern struct ftrace_event_call __stop_ftrace_events[];
-
-#endif /* _LINUX_KERNEL_TRACE_EVENTS_H */
--- /dev/null
+/*
+ * Stage 1 of the trace events.
+ *
+ * Override the macros in <trace/trace_event_types.h> to include the following:
+ *
+ * struct ftrace_raw_<call> {
+ * struct trace_entry ent;
+ * <type> <item>;
+ * [...]
+ * };
+ *
+ * The <type> <item> is created by the TRACE_FIELD(type, item, assign)
+ * macro. We simply do "type item;", and that will create the fields
+ * in the structure.
+ */
+
+#undef TRACE_FORMAT
+#define TRACE_FORMAT(call, proto, args, fmt)
+
+#undef TRACE_EVENT_FORMAT
+#define TRACE_EVENT_FORMAT(name, proto, args, fmt, tstruct, tpfmt) \
+ struct ftrace_raw_##name { \
+ struct trace_entry ent; \
+ tstruct \
+ }; \
+ static struct ftrace_event_call event_##name
+
+#undef TRACE_STRUCT
+#define TRACE_STRUCT(args...) args
+
+#define TRACE_FIELD(type, item, assign) \
+ type item;
+
+#include <trace/trace_event_types.h>
--- /dev/null
+/*
+ * Stage 2 of the trace events.
+ *
+ * Override the macros in <trace/trace_event_types.h> to include the following:
+ *
+ * enum print_line_t
+ * ftrace_raw_output_<call>(struct trace_iterator *iter, int flags)
+ * {
+ * struct trace_seq *s = &iter->seq;
+ * struct ftrace_raw_<call> *field; <-- defined in stage 1
+ * struct trace_entry *entry;
+ * int ret;
+ *
+ * entry = iter->ent;
+ *
+ * if (entry->type != event_<call>.id) {
+ * WARN_ON_ONCE(1);
+ * return TRACE_TYPE_UNHANDLED;
+ * }
+ *
+ * field = (typeof(field))entry;
+ *
+ * ret = trace_seq_printf(s, <TPRAWFMT> "%s", <ARGS> "\n");
+ * if (!ret)
+ * return TRACE_TYPE_PARTIAL_LINE;
+ *
+ * return TRACE_TYPE_HANDLED;
+ * }
+ *
+ * This is the method used to print the raw event to the trace
+ * output format. Note, this is not needed if the data is read
+ * in binary.
+ */
+
+#undef TRACE_STRUCT
+#define TRACE_STRUCT(args...) args
+
+#undef TRACE_FIELD
+#define TRACE_FIELD(type, item, assign) \
+ field->item,
+
+
+#undef TPRAWFMT
+#define TPRAWFMT(args...) args
+
+#undef TRACE_EVENT_FORMAT
+#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
+enum print_line_t \
+ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
+{ \
+ struct trace_seq *s = &iter->seq; \
+ struct ftrace_raw_##call *field; \
+ struct trace_entry *entry; \
+ int ret; \
+ \
+ entry = iter->ent; \
+ \
+ if (entry->type != event_##call.id) { \
+ WARN_ON_ONCE(1); \
+ return TRACE_TYPE_UNHANDLED; \
+ } \
+ \
+ field = (typeof(field))entry; \
+ \
+ ret = trace_seq_printf(s, tpfmt "%s", tstruct "\n"); \
+ if (!ret) \
+ return TRACE_TYPE_PARTIAL_LINE; \
+ \
+ return TRACE_TYPE_HANDLED; \
+}
+
+#include <trace/trace_event_types.h>
--- /dev/null
+/*
+ * Stage 3 of the trace events.
+ *
+ * Override the macros in <trace/trace_event_types.h> to include the following:
+ *
+ * static void ftrace_event_<call>(proto)
+ * {
+ * event_trace_printk(_RET_IP_, "(<call>) " <fmt>);
+ * }
+ *
+ * static int ftrace_reg_event_<call>(void)
+ * {
+ * int ret;
+ *
+ * ret = register_trace_<call>(ftrace_event_<call>);
+ * if (!ret)
+ * pr_info("event trace: Could not activate trace point "
+ * "probe to <call>");
+ * return ret;
+ * }
+ *
+ * static void ftrace_unreg_event_<call>(void)
+ * {
+ * unregister_trace_<call>(ftrace_event_<call>);
+ * }
+ *
+ * For those macros defined with TRACE_FORMAT:
+ *
+ * static struct ftrace_event_call __used
+ * __attribute__((__aligned__(4)))
+ * __attribute__((section("_ftrace_events"))) event_<call> = {
+ * .name = "<call>",
+ * .regfunc = ftrace_reg_event_<call>,
+ * .unregfunc = ftrace_unreg_event_<call>,
+ * }
+ *
+ *
+ * For those macros defined with TRACE_EVENT_FORMAT:
+ *
+ * static struct ftrace_event_call event_<call>;
+ *
+ * static void ftrace_raw_event_<call>(proto)
+ * {
+ * struct ring_buffer_event *event;
+ * struct ftrace_raw_<call> *entry; <-- defined in stage 1
+ * unsigned long irq_flags;
+ * int pc;
+ *
+ * local_save_flags(irq_flags);
+ * pc = preempt_count();
+ *
+ * event = trace_current_buffer_lock_reserve(event_<call>.id,
+ * sizeof(struct ftrace_raw_<call>),
+ * irq_flags, pc);
+ * if (!event)
+ * return;
+ * entry = ring_buffer_event_data(event);
+ *
+ * <tstruct>; <-- Here we assign the entries by the TRACE_FIELD.
+ *
+ * trace_current_buffer_unlock_commit(event, irq_flags, pc);
+ * }
+ *
+ * static int ftrace_raw_reg_event_<call>(void)
+ * {
+ * int ret;
+ *
+ * ret = register_trace_<call>(ftrace_raw_event_<call>);
+ * if (!ret)
+ * pr_info("event trace: Could not activate trace point "
+ * "probe to <call>");
+ * return ret;
+ * }
+ *
+ * static void ftrace_unreg_event_<call>(void)
+ * {
+ * unregister_trace_<call>(ftrace_raw_event_<call>);
+ * }
+ *
+ * static struct trace_event ftrace_event_type_<call> = {
+ * .trace = ftrace_raw_output_<call>, <-- stage 2
+ * };
+ *
+ * static int ftrace_raw_init_event_<call>(void)
+ * {
+ * int id;
+ *
+ * id = register_ftrace_event(&ftrace_event_type_<call>);
+ * if (!id)
+ * return -ENODEV;
+ * event_<call>.id = id;
+ * return 0;
+ * }
+ *
+ * static struct ftrace_event_call __used
+ * __attribute__((__aligned__(4)))
+ * __attribute__((section("_ftrace_events"))) event_<call> = {
+ * .name = "<call>",
+ * .regfunc = ftrace_reg_event_<call>,
+ * .unregfunc = ftrace_unreg_event_<call>,
+ * .raw_init = ftrace_raw_init_event_<call>,
+ * .raw_reg = ftrace_raw_reg_event_<call>,
+ * .raw_unreg = ftrace_raw_unreg_event_<call>,
+ * }
+ *
+ */
+
+#undef TPFMT
+#define TPFMT(fmt, args...) fmt "\n", ##args
+
+#define _TRACE_FORMAT(call, proto, args, fmt) \
+static void ftrace_event_##call(proto) \
+{ \
+ event_trace_printk(_RET_IP_, "(" #call ") " fmt); \
+} \
+ \
+static int ftrace_reg_event_##call(void) \
+{ \
+ int ret; \
+ \
+ ret = register_trace_##call(ftrace_event_##call); \
+ if (!ret) \
+ pr_info("event trace: Could not activate trace point " \
+ "probe to " #call); \
+ return ret; \
+} \
+ \
+static void ftrace_unreg_event_##call(void) \
+{ \
+ unregister_trace_##call(ftrace_event_##call); \
+} \
+
+
+#undef TRACE_FORMAT
+#define TRACE_FORMAT(call, proto, args, fmt) \
+_TRACE_FORMAT(call, PARAMS(proto), PARAMS(args), PARAMS(fmt)) \
+static struct ftrace_event_call __used \
+__attribute__((__aligned__(4))) \
+__attribute__((section("_ftrace_events"))) event_##call = { \
+ .name = #call, \
+ .system = STR(TRACE_SYSTEM), \
+ .regfunc = ftrace_reg_event_##call, \
+ .unregfunc = ftrace_unreg_event_##call, \
+}
+
+#undef TRACE_FIELD
+#define TRACE_FIELD(type, item, assign)\
+ entry->item = assign;
+
+#undef TRACE_EVENT_FORMAT
+#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
+_TRACE_FORMAT(call, PARAMS(proto), PARAMS(args), PARAMS(fmt)) \
+ \
+static struct ftrace_event_call event_##call; \
+ \
+static void ftrace_raw_event_##call(proto) \
+{ \
+ struct ring_buffer_event *event; \
+ struct ftrace_raw_##call *entry; \
+ unsigned long irq_flags; \
+ int pc; \
+ \
+ local_save_flags(irq_flags); \
+ pc = preempt_count(); \
+ \
+ event = trace_current_buffer_lock_reserve(event_##call.id, \
+ sizeof(struct ftrace_raw_##call), \
+ irq_flags, pc); \
+ if (!event) \
+ return; \
+ entry = ring_buffer_event_data(event); \
+ \
+ tstruct; \
+ \
+ trace_current_buffer_unlock_commit(event, irq_flags, pc); \
+} \
+ \
+static int ftrace_raw_reg_event_##call(void) \
+{ \
+ int ret; \
+ \
+ ret = register_trace_##call(ftrace_raw_event_##call); \
+ if (!ret) \
+ pr_info("event trace: Could not activate trace point " \
+ "probe to " #call); \
+ return ret; \
+} \
+ \
+static void ftrace_raw_unreg_event_##call(void) \
+{ \
+ unregister_trace_##call(ftrace_raw_event_##call); \
+} \
+ \
+static struct trace_event ftrace_event_type_##call = { \
+ .trace = ftrace_raw_output_##call, \
+}; \
+ \
+static int ftrace_raw_init_event_##call(void) \
+{ \
+ int id; \
+ \
+ id = register_ftrace_event(&ftrace_event_type_##call); \
+ if (!id) \
+ return -ENODEV; \
+ event_##call.id = id; \
+ return 0; \
+} \
+ \
+static struct ftrace_event_call __used \
+__attribute__((__aligned__(4))) \
+__attribute__((section("_ftrace_events"))) event_##call = { \
+ .name = #call, \
+ .system = STR(TRACE_SYSTEM), \
+ .regfunc = ftrace_reg_event_##call, \
+ .unregfunc = ftrace_unreg_event_##call, \
+ .raw_init = ftrace_raw_init_event_##call, \
+ .raw_reg = ftrace_raw_reg_event_##call, \
+ .raw_unreg = ftrace_raw_unreg_event_##call, \
+}
return 0;
}
-void free_user_ns(struct kref *kref)
+/*
+ * Deferred destructor for a user namespace. This is required because
+ * free_user_ns() may be called with uidhash_lock held, but we need to call
+ * back to free_uid() which will want to take the lock again.
+ */
+static void free_user_ns_work(struct work_struct *work)
{
- struct user_namespace *ns;
-
- ns = container_of(kref, struct user_namespace, kref);
+ struct user_namespace *ns =
+ container_of(work, struct user_namespace, destroyer);
free_uid(ns->creator);
kfree(ns);
}
+
+void free_user_ns(struct kref *kref)
+{
+ struct user_namespace *ns =
+ container_of(kref, struct user_namespace, kref);
+
+ INIT_WORK(&ns->destroyer, free_user_ns_work);
+ schedule_work(&ns->destroyer);
+}
EXPORT_SYMBOL(free_user_ns);
unsigned long addr;
int purged = 0;
+ BUG_ON(!size);
BUG_ON(size & ~PAGE_MASK);
va = kmalloc_node(sizeof(struct vmap_area),
addr = ALIGN(vstart, align);
spin_lock(&vmap_area_lock);
+ if (addr + size - 1 < addr)
+ goto overflow;
+
/* XXX: could have a last_hole cache */
n = vmap_area_root.rb_node;
if (n) {
while (addr + size > first->va_start && addr + size <= vend) {
addr = ALIGN(first->va_end + PAGE_SIZE, align);
+ if (addr + size - 1 < addr)
+ goto overflow;
n = rb_next(&first->rb_node);
if (n)
}
found:
if (addr + size > vend) {
+overflow:
spin_unlock(&vmap_area_lock);
if (!purged) {
purge_vmap_area_lazy();
static DEFINE_SPINLOCK(purge_lock);
LIST_HEAD(valist);
struct vmap_area *va;
+ struct vmap_area *n_va;
int nr = 0;
/*
if (nr) {
spin_lock(&vmap_area_lock);
- list_for_each_entry(va, &valist, purge_list)
+ list_for_each_entry_safe(va, n_va, &valist, purge_list)
__free_vmap_area(va);
spin_unlock(&vmap_area_lock);
}
my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.27';
+my $V = '0.28';
use Getopt::Long qw(:config no_auto_abbrev);
__iomem|
__must_check|
__init_refok|
- __kprobes
+ __kprobes|
+ __ref
}x;
our $Attribute = qr{
const|
$realfile =~ s@^([^/]*)/@@;
$p1_prefix = $1;
- if ($tree && $p1_prefix ne '' && -e "$root/$p1_prefix") {
+ if (!$file && $tree && $p1_prefix ne '' &&
+ -e "$root/$p1_prefix") {
WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
}
}
# TEST: allow direct testing of the attribute matcher.
if ($dbg_attr) {
- if ($line =~ /^.\s*$Attribute\s*$/) {
+ if ($line =~ /^.\s*$Modifier\s*$/) {
ERROR("TEST: is attr\n" . $herecurr);
- } elsif ($dbg_attr > 1 && $line =~ /^.+($Attribute)/) {
+ } elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
ERROR("TEST: is not attr ($1 is)\n". $herecurr);
}
next;
# * goes on variable not on type
# (char*[ const])
- if ($line =~ m{\($NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)*)\)}) {
+ if ($line =~ m{\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\)}) {
my ($from, $to) = ($1, $1);
# Should start with a space.
if ($from ne $to) {
ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr);
}
- } elsif ($line =~ m{\b$NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)?)($Ident)}) {
+ } elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) {
my ($from, $to, $ident) = ($1, $1, $2);
# Should start with a space.
# Modifiers should have spaces.
$to =~ s/(\b$Modifier$)/$1 /;
- #print "from<$from> to<$to>\n";
- if ($from ne $to) {
+ #print "from<$from> to<$to> ident<$ident>\n";
+ if ($from ne $to && $ident !~ /^$Modifier$/) {
ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr);
}
}
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
ERROR("space required before that '$op' $at\n" . $hereptr);
}
- if ($op eq '*' && $cc =~/\s*const\b/) {
+ if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
# A unary '*' may be const
} elsif ($ctx =~ /.xW/) {
- ERROR("space prohibited after that '$op' $at\n" . $hereptr);
+ ERROR("Aspace prohibited after that '$op' $at\n" . $hereptr);
}
# unary ++ and unary -- are allowed no space on one side.
if ($line =~ /\bin_atomic\s*\(/) {
if ($realfile =~ m@^drivers/@) {
ERROR("do not use in_atomic in drivers\n" . $herecurr);
- } else {
+ } elsif ($realfile !~ m@^kernel/@) {
WARN("use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
}
}
projects / linux-2.6-omap-h63xx.git / commitdiff