summaryrefslogtreecommitdiffstats
path: root/drivers/pci/pcie/aspm.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-11 12:18:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-11 12:18:16 -0800
commit11bd04f6f35621193311c32e0721142b073a7794 (patch)
tree00979740582bb26e8d3756bf3526c85f19f66a46 /drivers/pci/pcie/aspm.c
parent4e2ccdb0409146f8cf64a11b6ef82a9c928ced2a (diff)
parent9e0b5b2c447ad0caa075a5cfef86def62e1782ff (diff)
downloadop-kernel-dev-11bd04f6f35621193311c32e0721142b073a7794.zip
op-kernel-dev-11bd04f6f35621193311c32e0721142b073a7794.tar.gz
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (109 commits) PCI: fix coding style issue in pci_save_state() PCI: add pci_request_acs PCI: fix BUG_ON triggered by logical PCIe root port removal PCI: remove ifdefed pci_cleanup_aer_correct_error_status PCI: unconditionally clear AER uncorr status register during cleanup x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource PCI: portdrv: remove redundant definitions PCI: portdrv: remove unnecessary struct pcie_port_data PCI: portdrv: minor cleanup for pcie_port_device_register PCI: portdrv: add missing irq cleanup PCI: portdrv: enable device before irq initialization PCI: portdrv: cleanup service irqs initialization PCI: portdrv: check capabilities first PCI: portdrv: move PME capability check PCI: portdrv: remove redundant pcie type calculation PCI: portdrv: cleanup pcie_device registration PCI: portdrv: remove redundant pcie_port_device_probe PCI: Always set prefetchable base/limit upper32 registers PCI: read-modify-write the pcie device control register when initiating pcie flr PCI: show dma_mask bits in /sys ... Fixed up conflicts in: arch/x86/kernel/amd_iommu_init.c drivers/pci/dmar.c drivers/pci/hotplug/acpiphp_glue.c
Diffstat (limited to 'drivers/pci/pcie/aspm.c')
-rw-r--r--drivers/pci/pcie/aspm.c41
1 files changed, 22 insertions, 19 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 5b7056c..5a01fc7 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -122,7 +122,7 @@ static void pcie_set_clkpm_nocheck(struct pcie_link_state *link, int enable)
struct pci_bus *linkbus = link->pdev->subordinate;
list_for_each_entry(child, &linkbus->devices, bus_list) {
- pos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ pos = pci_pcie_cap(child);
if (!pos)
return;
pci_read_config_word(child, pos + PCI_EXP_LNKCTL, &reg16);
@@ -156,7 +156,7 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
/* All functions should have the same cap and state, take the worst */
list_for_each_entry(child, &linkbus->devices, bus_list) {
- pos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ pos = pci_pcie_cap(child);
if (!pos)
return;
pci_read_config_dword(child, pos + PCI_EXP_LNKCAP, &reg32);
@@ -191,23 +191,23 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
* Configuration, so just check one function
*/
child = list_entry(linkbus->devices.next, struct pci_dev, bus_list);
- BUG_ON(!child->is_pcie);
+ BUG_ON(!pci_is_pcie(child));
/* Check downstream component if bit Slot Clock Configuration is 1 */
- cpos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ cpos = pci_pcie_cap(child);
pci_read_config_word(child, cpos + PCI_EXP_LNKSTA, &reg16);
if (!(reg16 & PCI_EXP_LNKSTA_SLC))
same_clock = 0;
/* Check upstream component if bit Slot Clock Configuration is 1 */
- ppos = pci_find_capability(parent, PCI_CAP_ID_EXP);
+ ppos = pci_pcie_cap(parent);
pci_read_config_word(parent, ppos + PCI_EXP_LNKSTA, &reg16);
if (!(reg16 & PCI_EXP_LNKSTA_SLC))
same_clock = 0;
/* Configure downstream component, all functions */
list_for_each_entry(child, &linkbus->devices, bus_list) {
- cpos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ cpos = pci_pcie_cap(child);
pci_read_config_word(child, cpos + PCI_EXP_LNKCTL, &reg16);
child_reg[PCI_FUNC(child->devfn)] = reg16;
if (same_clock)
@@ -247,7 +247,7 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
dev_printk(KERN_ERR, &parent->dev,
"ASPM: Could not configure common clock\n");
list_for_each_entry(child, &linkbus->devices, bus_list) {
- cpos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ cpos = pci_pcie_cap(child);
pci_write_config_word(child, cpos + PCI_EXP_LNKCTL,
child_reg[PCI_FUNC(child->devfn)]);
}
@@ -300,7 +300,7 @@ static void pcie_get_aspm_reg(struct pci_dev *pdev,
u16 reg16;
u32 reg32;
- pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ pos = pci_pcie_cap(pdev);
pci_read_config_dword(pdev, pos + PCI_EXP_LNKCAP, &reg32);
info->support = (reg32 & PCI_EXP_LNKCAP_ASPMS) >> 10;
info->latency_encoding_l0s = (reg32 & PCI_EXP_LNKCAP_L0SEL) >> 12;
@@ -420,7 +420,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
child->pcie_type != PCI_EXP_TYPE_LEG_END)
continue;
- pos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ pos = pci_pcie_cap(child);
pci_read_config_dword(child, pos + PCI_EXP_DEVCAP, &reg32);
/* Calculate endpoint L0s acceptable latency */
encoding = (reg32 & PCI_EXP_DEVCAP_L0S) >> 6;
@@ -436,7 +436,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
static void pcie_config_aspm_dev(struct pci_dev *pdev, u32 val)
{
u16 reg16;
- int pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ int pos = pci_pcie_cap(pdev);
pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
reg16 &= ~0x3;
@@ -503,7 +503,7 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
* very strange. Disable ASPM for the whole slot
*/
list_for_each_entry(child, &pdev->subordinate->devices, bus_list) {
- pos = pci_find_capability(child, PCI_CAP_ID_EXP);
+ pos = pci_pcie_cap(child);
if (!pos)
return -EINVAL;
/*
@@ -563,7 +563,7 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
struct pcie_link_state *link;
int blacklist = !!pcie_aspm_sanity_check(pdev);
- if (aspm_disabled || !pdev->is_pcie || pdev->link_state)
+ if (aspm_disabled || !pci_is_pcie(pdev) || pdev->link_state)
return;
if (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
@@ -629,7 +629,8 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev)
struct pci_dev *parent = pdev->bus->self;
struct pcie_link_state *link, *root, *parent_link;
- if (aspm_disabled || !pdev->is_pcie || !parent || !parent->link_state)
+ if (aspm_disabled || !pci_is_pcie(pdev) ||
+ !parent || !parent->link_state)
return;
if ((parent->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
(parent->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
@@ -670,7 +671,7 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev)
{
struct pcie_link_state *link = pdev->link_state;
- if (aspm_disabled || !pdev->is_pcie || !link)
+ if (aspm_disabled || !pci_is_pcie(pdev) || !link)
return;
if ((pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
(pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
@@ -696,7 +697,7 @@ void pci_disable_link_state(struct pci_dev *pdev, int state)
struct pci_dev *parent = pdev->bus->self;
struct pcie_link_state *link;
- if (aspm_disabled || !pdev->is_pcie)
+ if (aspm_disabled || !pci_is_pcie(pdev))
return;
if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
@@ -841,8 +842,9 @@ void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev)
{
struct pcie_link_state *link_state = pdev->link_state;
- if (!pdev->is_pcie || (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
+ if (!pci_is_pcie(pdev) ||
+ (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
+ pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
return;
if (link_state->aspm_support)
@@ -857,8 +859,9 @@ void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev)
{
struct pcie_link_state *link_state = pdev->link_state;
- if (!pdev->is_pcie || (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
+ if (!pci_is_pcie(pdev) ||
+ (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
+ pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
return;
if (link_state->aspm_support)
OpenPOWER on IntegriCloud