* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define DEBUG
+#undef DEBUG_LOW
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
+#include <linux/console.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include <asm/abs_addr.h>
#include <asm/mmu_context.h>
-#include <asm/ppcdebug.h>
#include <asm/iommu.h>
#include <asm/tlbflush.h>
#include <asm/tlb.h>
#include <asm/prom.h>
#include <asm/abs_addr.h>
#include <asm/cputable.h>
+#include <asm/udbg.h>
+#include <asm/smp.h>
#include "plpar_wrappers.h"
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
+#ifdef DEBUG_LOW
+#define DBG_LOW(fmt...) do { udbg_printf(fmt); } while(0)
#else
-#define DBG(fmt...)
+#define DBG_LOW(fmt...) do { } while(0)
#endif
-/* in pSeries_hvCall.S */
+/* in hvCall.S */
EXPORT_SYMBOL(plpar_hcall);
-EXPORT_SYMBOL(plpar_hcall_4out);
+EXPORT_SYMBOL(plpar_hcall9);
EXPORT_SYMBOL(plpar_hcall_norets);
-EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
extern void pSeries_find_serial_port(void);
int vtermno; /* virtual terminal# for udbg */
#define __ALIGNED__ __attribute__((__aligned__(sizeof(long))))
-static void udbg_hvsi_putc(unsigned char c)
+static void udbg_hvsi_putc(char c)
{
/* packet's seqno isn't used anyways */
uint8_t packet[] __ALIGNED__ = { 0xff, 5, 0, 0, c };
do {
rc = plpar_put_term_char(vtermno, sizeof(packet), packet);
- } while (rc == H_Busy);
+ } while (rc == H_BUSY);
}
static long hvsi_udbg_buf_len;
if (hvsi_udbg_buf_len == 0) {
rc = plpar_get_term_char(vtermno, &hvsi_udbg_buf_len, hvsi_udbg_buf);
- if (rc != H_Success || hvsi_udbg_buf[0] != 0xff) {
+ if (rc != H_SUCCESS || hvsi_udbg_buf[0] != 0xff) {
/* bad read or non-data packet */
hvsi_udbg_buf_len = 0;
} else {
return ch;
}
-static unsigned char udbg_hvsi_getc(void)
+static int udbg_hvsi_getc(void)
{
int ch;
for (;;) {
}
}
-static void udbg_putcLP(unsigned char c)
+static void udbg_putcLP(char c)
{
char buf[16];
unsigned long rc;
buf[0] = c;
do {
rc = plpar_put_term_char(vtermno, 1, buf);
- } while(rc == H_Busy);
+ } while(rc == H_BUSY);
}
/* Buffered chars getc */
/* get some more chars. */
inbuflen = 0;
rc = plpar_get_term_char(vtermno, &inbuflen, buf);
- if (rc != H_Success)
+ if (rc != H_SUCCESS)
inbuflen = 0; /* otherwise inbuflen is garbage */
}
if (inbuflen <= 0 || inbuflen > 16) {
return ch;
}
-static unsigned char udbg_getcLP(void)
+static int udbg_getcLP(void)
{
int ch;
for (;;) {
/* call this from early_init() for a working debug console on
* vterm capable LPAR machines
*/
-void udbg_init_debug_lpar(void)
+void __init udbg_init_debug_lpar(void)
{
vtermno = 0;
udbg_putc = udbg_putcLP;
}
/* returns 0 if couldn't find or use /chosen/stdout as console */
-int find_udbg_vterm(void)
+void __init find_udbg_vterm(void)
{
struct device_node *stdout_node;
- u32 *termno;
- char *name;
- int found = 0;
+ const u32 *termno;
+ const char *name;
+ int add_console;
/* find the boot console from /chosen/stdout */
if (!of_chosen)
- return 0;
- name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+ return;
+ name = get_property(of_chosen, "linux,stdout-path", NULL);
if (name == NULL)
- return 0;
+ return;
stdout_node = of_find_node_by_path(name);
if (!stdout_node)
- return 0;
-
- /* now we have the stdout node; figure out what type of device it is. */
- name = (char *)get_property(stdout_node, "name", NULL);
+ return;
+ name = get_property(stdout_node, "name", NULL);
if (!name) {
printk(KERN_WARNING "stdout node missing 'name' property!\n");
goto out;
}
+ /* The user has requested a console so this is already set up. */
+ add_console = !strstr(cmd_line, "console=");
- if (strncmp(name, "vty", 3) == 0) {
- if (device_is_compatible(stdout_node, "hvterm1")) {
- termno = (u32 *)get_property(stdout_node, "reg", NULL);
- if (termno) {
- vtermno = termno[0];
- udbg_putc = udbg_putcLP;
- udbg_getc = udbg_getcLP;
- udbg_getc_poll = udbg_getc_pollLP;
- found = 1;
- }
- } else if (device_is_compatible(stdout_node, "hvterm-protocol")) {
- termno = (u32 *)get_property(stdout_node, "reg", NULL);
- if (termno) {
- vtermno = termno[0];
- udbg_putc = udbg_hvsi_putc;
- udbg_getc = udbg_hvsi_getc;
- udbg_getc_poll = udbg_hvsi_getc_poll;
- found = 1;
- }
- }
- } else if (strncmp(name, "serial", 6)) {
- /* XXX fix ISA serial console */
- printk(KERN_WARNING "serial stdout on LPAR ('%s')! "
- "can't print udbg messages\n",
- stdout_node->full_name);
- } else {
- printk(KERN_WARNING "don't know how to print to stdout '%s'\n",
- stdout_node->full_name);
+ /* Check if it's a virtual terminal */
+ if (strncmp(name, "vty", 3) != 0)
+ goto out;
+ termno = get_property(stdout_node, "reg", NULL);
+ if (termno == NULL)
+ goto out;
+ vtermno = termno[0];
+
+ if (device_is_compatible(stdout_node, "hvterm1")) {
+ udbg_putc = udbg_putcLP;
+ udbg_getc = udbg_getcLP;
+ udbg_getc_poll = udbg_getc_pollLP;
+ if (add_console)
+ add_preferred_console("hvc", termno[0] & 0xff, NULL);
+ } else if (device_is_compatible(stdout_node, "hvterm-protocol")) {
+ vtermno = termno[0];
+ udbg_putc = udbg_hvsi_putc;
+ udbg_getc = udbg_hvsi_getc;
+ udbg_getc_poll = udbg_hvsi_getc_poll;
+ if (add_console)
+ add_preferred_console("hvsi", termno[0] & 0xff, NULL);
}
-
out:
of_node_put(stdout_node);
- return found;
}
void vpa_init(int cpu)
{
int hwcpu = get_hard_smp_processor_id(cpu);
- unsigned long vpa = __pa(&paca[cpu].lppaca);
+ unsigned long addr;
long ret;
if (cpu_has_feature(CPU_FTR_ALTIVEC))
- paca[cpu].lppaca.vmxregs_in_use = 1;
+ lppaca[cpu].vmxregs_in_use = 1;
- ret = register_vpa(hwcpu, vpa);
+ addr = __pa(&lppaca[cpu]);
+ ret = register_vpa(hwcpu, addr);
- if (ret)
+ if (ret) {
printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
"cpu %d (hw %d) of area %lx returns %ld\n",
- cpu, hwcpu, vpa, ret);
+ cpu, hwcpu, addr, ret);
+ return;
+ }
+ /*
+ * PAPR says this feature is SLB-Buffer but firmware never
+ * reports that. All SPLPAR support SLB shadow buffer.
+ */
+ addr = __pa(&slb_shadow[cpu]);
+ if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ ret = register_slb_shadow(hwcpu, addr);
+ if (ret)
+ printk(KERN_ERR
+ "WARNING: vpa_init: SLB shadow buffer "
+ "registration for cpu %d (hw %d) of area %lx "
+ "returns %ld\n", cpu, hwcpu, addr, ret);
+ }
}
long pSeries_lpar_hpte_insert(unsigned long hpte_group,
- unsigned long va, unsigned long prpn,
- unsigned long vflags, unsigned long rflags)
+ unsigned long va, unsigned long pa,
+ unsigned long rflags, unsigned long vflags,
+ int psize)
{
unsigned long lpar_rc;
unsigned long flags;
unsigned long slot;
unsigned long hpte_v, hpte_r;
- unsigned long dummy0, dummy1;
- hpte_v = ((va >> 23) << HPTE_V_AVPN_SHIFT) | vflags | HPTE_V_VALID;
- if (vflags & HPTE_V_LARGE)
- hpte_v &= ~(1UL << HPTE_V_AVPN_SHIFT);
+ if (!(vflags & HPTE_V_BOLTED))
+ DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, "
+ "rflags=%lx, vflags=%lx, psize=%d)\n",
+ hpte_group, va, pa, rflags, vflags, psize);
+
+ hpte_v = hpte_encode_v(va, psize) | vflags | HPTE_V_VALID;
+ hpte_r = hpte_encode_r(pa, psize) | rflags;
- hpte_r = (prpn << HPTE_R_RPN_SHIFT) | rflags;
+ if (!(vflags & HPTE_V_BOLTED))
+ DBG_LOW(" hpte_v=%016lx, hpte_r=%016lx\n", hpte_v, hpte_r);
/* Now fill in the actual HPTE */
/* Set CEC cookie to 0 */
/* Exact = 0 */
flags = 0;
- /* XXX why is this here? - Anton */
+ /* Make pHyp happy */
if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
hpte_r &= ~_PAGE_COHERENT;
- lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
- hpte_r, &slot, &dummy0, &dummy1);
-
- if (unlikely(lpar_rc == H_PTEG_Full))
+ lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
+ if (unlikely(lpar_rc == H_PTEG_FULL)) {
+ if (!(vflags & HPTE_V_BOLTED))
+ DBG_LOW(" full\n");
return -1;
+ }
/*
* Since we try and ioremap PHBs we don't own, the pte insert
* will fail. However we must catch the failure in hash_page
* or we will loop forever, so return -2 in this case.
*/
- if (unlikely(lpar_rc != H_Success))
+ if (unlikely(lpar_rc != H_SUCCESS)) {
+ if (!(vflags & HPTE_V_BOLTED))
+ DBG_LOW(" lpar err %d\n", lpar_rc);
return -2;
+ }
+ if (!(vflags & HPTE_V_BOLTED))
+ DBG_LOW(" -> slot: %d\n", slot & 7);
/* Because of iSeries, we have to pass down the secondary
* bucket bit here as well
/* don't remove a bolted entry */
lpar_rc = plpar_pte_remove(H_ANDCOND, hpte_group + slot_offset,
(0x1UL << 4), &dummy1, &dummy2);
-
- if (lpar_rc == H_Success)
+ if (lpar_rc == H_SUCCESS)
return i;
-
- BUG_ON(lpar_rc != H_Not_Found);
+ BUG_ON(lpar_rc != H_NOT_FOUND);
slot_offset++;
slot_offset &= 0x7;
* We can probably optimize here and assume the high bits of newpp are
* already zero. For now I am paranoid.
*/
-static long pSeries_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp,
- unsigned long va, int large, int local)
+static long pSeries_lpar_hpte_updatepp(unsigned long slot,
+ unsigned long newpp,
+ unsigned long va,
+ int psize, int local)
{
unsigned long lpar_rc;
unsigned long flags = (newpp & 7) | H_AVPN;
- unsigned long avpn = va >> 23;
+ unsigned long want_v;
- if (large)
- avpn &= ~0x1UL;
+ want_v = hpte_encode_v(va, psize);
- lpar_rc = plpar_pte_protect(flags, slot, (avpn << 7));
+ DBG_LOW(" update: avpnv=%016lx, hash=%016lx, f=%x, psize: %d ... ",
+ want_v & HPTE_V_AVPN, slot, flags, psize);
- if (lpar_rc == H_Not_Found)
+ lpar_rc = plpar_pte_protect(flags, slot, want_v & HPTE_V_AVPN);
+
+ if (lpar_rc == H_NOT_FOUND) {
+ DBG_LOW("not found !\n");
return -1;
+ }
- BUG_ON(lpar_rc != H_Success);
+ DBG_LOW("ok\n");
+
+ BUG_ON(lpar_rc != H_SUCCESS);
return 0;
}
lpar_rc = plpar_pte_read(flags, slot, &dword0, &dummy_word1);
- BUG_ON(lpar_rc != H_Success);
+ BUG_ON(lpar_rc != H_SUCCESS);
return dword0;
}
-static long pSeries_lpar_hpte_find(unsigned long vpn)
+static long pSeries_lpar_hpte_find(unsigned long va, int psize)
{
unsigned long hash;
unsigned long i, j;
long slot;
- unsigned long hpte_v;
+ unsigned long want_v, hpte_v;
- hash = hpt_hash(vpn, 0);
+ hash = hpt_hash(va, mmu_psize_defs[psize].shift);
+ want_v = hpte_encode_v(va, psize);
for (j = 0; j < 2; j++) {
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
for (i = 0; i < HPTES_PER_GROUP; i++) {
hpte_v = pSeries_lpar_hpte_getword0(slot);
- if ((HPTE_V_AVPN_VAL(hpte_v) == (vpn >> 11))
+ if (HPTE_V_COMPARE(hpte_v, want_v)
&& (hpte_v & HPTE_V_VALID)
&& (!!(hpte_v & HPTE_V_SECONDARY) == j)) {
/* HPTE matches */
}
static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp,
- unsigned long ea)
+ unsigned long ea,
+ int psize)
{
- unsigned long lpar_rc;
- unsigned long vsid, va, vpn, flags;
- long slot;
+ unsigned long lpar_rc, slot, vsid, va, flags;
vsid = get_kernel_vsid(ea);
va = (vsid << 28) | (ea & 0x0fffffff);
- vpn = va >> PAGE_SHIFT;
- slot = pSeries_lpar_hpte_find(vpn);
+ slot = pSeries_lpar_hpte_find(va, psize);
BUG_ON(slot == -1);
flags = newpp & 7;
lpar_rc = plpar_pte_protect(flags, slot, 0);
- BUG_ON(lpar_rc != H_Success);
+ BUG_ON(lpar_rc != H_SUCCESS);
}
static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
- int large, int local)
+ int psize, int local)
{
- unsigned long avpn = va >> 23;
+ unsigned long want_v;
unsigned long lpar_rc;
unsigned long dummy1, dummy2;
- if (large)
- avpn &= ~0x1UL;
-
- lpar_rc = plpar_pte_remove(H_AVPN, slot, (avpn << 7), &dummy1,
- &dummy2);
+ DBG_LOW(" inval : slot=%lx, va=%016lx, psize: %d, local: %d",
+ slot, va, psize, local);
- if (lpar_rc == H_Not_Found)
+ want_v = hpte_encode_v(va, psize);
+ lpar_rc = plpar_pte_remove(H_AVPN, slot, want_v & HPTE_V_AVPN,
+ &dummy1, &dummy2);
+ if (lpar_rc == H_NOT_FOUND)
return;
- BUG_ON(lpar_rc != H_Success);
+ BUG_ON(lpar_rc != H_SUCCESS);
}
/*
spin_lock_irqsave(&pSeries_lpar_tlbie_lock, flags);
for (i = 0; i < number; i++)
- flush_hash_page(batch->vaddr[i], batch->pte[i], local);
+ flush_hash_page(batch->vaddr[i], batch->pte[i],
+ batch->psize, local);
if (lock_tlbie)
spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags);
}
-void hpte_init_lpar(void)
+void __init hpte_init_lpar(void)
{
ppc_md.hpte_invalidate = pSeries_lpar_hpte_invalidate;
ppc_md.hpte_updatepp = pSeries_lpar_hpte_updatepp;
ppc_md.hpte_remove = pSeries_lpar_hpte_remove;
ppc_md.flush_hash_range = pSeries_lpar_flush_hash_range;
ppc_md.hpte_clear_all = pSeries_lpar_hptab_clear;
-
- htab_finish_init();
}
projects / linux-2.6-omap-h63xx.git / blobdiff