#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/string.h>
+#include <linux/log2.h>
#include <asm/dma.h> /* isa_dma_bridge_buggy */
#include "pci.h"
unsigned int pci_pm_d3_delay = 10;
+#ifdef CONFIG_PCI_DOMAINS
+int pci_domains_supported = 1;
+#endif
+
#define DEFAULT_CARDBUS_IO_SIZE (256)
#define DEFAULT_CARDBUS_MEM_SIZE (64*1024*1024)
/* pci=cbmemsize=nnM,cbiosize=nn can override this */
return 0;
}
-int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
+pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
/**
* pci_choose_state - Choose the power state of a PCI device
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state)
{
- int ret;
+ pci_power_t ret;
if (!pci_find_capability(dev, PCI_CAP_ID_PM))
return PCI_D0;
if (platform_pci_choose_state) {
ret = platform_pci_choose_state(dev, state);
- if (ret >= 0)
- state.event = ret;
+ if (ret != PCI_POWER_ERROR)
+ return ret;
}
switch (state.event) {
pci_restore_state(struct pci_dev *dev)
{
int i;
- int val;
+ u32 val;
/* PCI Express register must be restored first */
pci_restore_pcie_state(dev);
}
/**
- * __pci_reenable_device - Resume abandoned device
+ * pci_reenable_device - Resume abandoned device
* @dev: PCI device to be resumed
*
* Note this function is a backend of pci_default_resume and is not supposed
* to be called by normal code, write proper resume handler and use it instead.
*/
-int
-__pci_reenable_device(struct pci_dev *dev)
+int pci_reenable_device(struct pci_dev *dev)
{
if (atomic_read(&dev->enable_cnt))
return do_pci_enable_device(dev, (1 << PCI_NUM_RESOURCES) - 1);
int cap, err = -EINVAL;
u32 stat, cmd, v, o;
- if (mmrbc < 512 || mmrbc > 4096 || (mmrbc & (mmrbc-1)))
+ if (mmrbc < 512 || mmrbc > 4096 || !is_power_of_2(mmrbc))
goto out;
v = ffs(mmrbc) - 10;
/**
* pcie_set_readrq - set PCI Express maximum memory read request
* @dev: PCI device to query
- * @count: maximum memory read count in bytes
+ * @rq: maximum memory read count in bytes
* valid values are 128, 256, 512, 1024, 2048, 4096
*
* If possible sets maximum read byte count
int cap, err = -EINVAL;
u16 ctl, v;
- if (rq < 128 || rq > 4096 || (rq & (rq-1)))
+ if (rq < 128 || rq > 4096 || !is_power_of_2(rq))
goto out;
v = (ffs(rq) - 8) << 12;
return bars;
}
+static void __devinit pci_no_domains(void)
+{
+#ifdef CONFIG_PCI_DOMAINS
+ pci_domains_supported = 0;
+#endif
+}
+
static int __devinit pci_init(void)
{
struct pci_dev *dev = NULL;
if (*str && (str = pcibios_setup(str)) && *str) {
if (!strcmp(str, "nomsi")) {
pci_no_msi();
+ } else if (!strcmp(str, "noaer")) {
+ pci_no_aer();
+ } else if (!strcmp(str, "nodomains")) {
+ pci_no_domains();
} else if (!strncmp(str, "cbiosize=", 9)) {
pci_cardbus_io_size = memparse(str + 9, &str);
} else if (!strncmp(str, "cbmemsize=", 10)) {
device_initcall(pci_init);
EXPORT_SYMBOL_GPL(pci_restore_bars);
+EXPORT_SYMBOL(pci_reenable_device);
EXPORT_SYMBOL(pci_enable_device_bars);
EXPORT_SYMBOL(pci_enable_device);
EXPORT_SYMBOL(pcim_enable_device);