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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-14 14:02:00 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-14 14:02:00 +0900
commit2f466d33f5f60542d3d82c0477de5863b22c94b9 (patch)
tree839972958941d55852a9af270b04af09e3147116 /arch/x86
parentf9300eaaac1ca300083ad41937923a90cc3a2394 (diff)
parenteaaeb1cb33310dea6c3fa45d8bfc63e5a1d0a846 (diff)
downloadlinux-linaro-stable-2f466d33f5f60542d3d82c0477de5863b22c94b9.tar.gz
Merge tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas: "Resource management - Fix host bridge window coalescing (Alexey Neyman) - Pass type, width, and prefetchability for window alignment (Wei Yang) PCI device hotplug - Convert acpiphp, acpiphp_ibm to dynamic debug (Lan Tianyu) Power management - Remove pci_pm_complete() (Liu Chuansheng) MSI - Fail initialization if device is not in PCI_D0 (Yijing Wang) MPS (Max Payload Size) - Use pcie_get_mps() and pcie_set_mps() to simplify code (Yijing Wang) - Use pcie_set_readrq() to simplify code (Yijing Wang) - Use cached pci_dev->pcie_mpss to simplify code (Yijing Wang) SR-IOV - Enable upstream bridges even for VFs on virtual buses (Bjorn Helgaas) - Use pci_is_root_bus() to avoid catching virtual buses (Wei Yang) Virtualization - Add x86 MSI masking ops (Konrad Rzeszutek Wilk) Freescale i.MX6 - Support i.MX6 PCIe controller (Sean Cross) - Increase link startup timeout (Marek Vasut) - Probe PCIe in fs_initcall() (Marek Vasut) - Fix imprecise abort handler (Tim Harvey) - Remove redundant of_match_ptr (Sachin Kamat) Renesas R-Car - Support Gen2 internal PCIe controller (Valentine Barshak) Samsung Exynos - Add MSI support (Jingoo Han) - Turn off power when link fails (Jingoo Han) - Add Jingoo Han as maintainer (Jingoo Han) - Add clk_disable_unprepare() on error path (Wei Yongjun) - Remove redundant of_match_ptr (Sachin Kamat) Synopsys DesignWare - Add irq_create_mapping() (Pratyush Anand) - Add header guards (Seungwon Jeon) Miscellaneous - Enable native PCIe services by default on non-ACPI (Andrew Murray) - Cleanup _OSC usage and messages (Bjorn Helgaas) - Remove pcibios_last_bus boot option on non-x86 (Bjorn Helgaas) - Convert bus code to use bus_, drv_, and dev_groups (Greg Kroah-Hartman) - Remove unused pci_mem_start (Myron Stowe) - Make sysfs functions static (Sachin Kamat) - Warn on invalid return from driver probe (Stephen M. Cameron) - Remove Intel Haswell D3 delays (Todd E Brandt) - Call pci_set_master() in core if driver doesn't do it (Yinghai Lu) - Use pci_is_pcie() to simplify code (Yijing Wang) - Use PCIe capability accessors to simplify code (Yijing Wang) - Use cached pci_dev->pcie_cap to simplify code (Yijing Wang) - Removed unused "is_pcie" from struct pci_dev (Yijing Wang) - Simplify sysfs CPU affinity implementation (Yijing Wang)" * tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (79 commits) PCI: Enable upstream bridges even for VFs on virtual buses PCI: Add pci_upstream_bridge() PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq() PCI: Warn on driver probe return value greater than zero PCI: Drop warning about drivers that don't use pci_set_master() PCI: Workaround missing pci_set_master in pci drivers powerpc/pci: Use pci_is_pcie() to simplify code [fix] PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms PCI: imx6: Probe the PCIe in fs_initcall() PCI: Add R-Car Gen2 internal PCI support PCI: imx6: Remove redundant of_match_ptr PCI: Report pci_pme_active() kmalloc failure mn10300/PCI: Remove useless pcibios_last_bus frv/PCI: Remove pcibios_last_bus PCI: imx6: Increase link startup timeout PCI: exynos: Remove redundant of_match_ptr PCI: imx6: Fix imprecise abort handler PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0 PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe() x86/PCI: Coalesce multiple overlapping host bridge windows ...
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/x86_init.h3
-rw-r--r--arch/x86/kernel/x86_init.c10
-rw-r--r--arch/x86/pci/acpi.c8
-rw-r--r--arch/x86/pci/fixup.c18
-rw-r--r--arch/x86/pci/xen.c13
5 files changed, 39 insertions, 13 deletions
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 828a1565ba57..0f1be11e43d2 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -172,6 +172,7 @@ struct x86_platform_ops {
struct pci_dev;
struct msi_msg;
+struct msi_desc;
struct x86_msi_ops {
int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
@@ -182,6 +183,8 @@ struct x86_msi_ops {
void (*teardown_msi_irqs)(struct pci_dev *dev);
void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
+ u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
+ u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
};
struct IO_APIC_route_entry;
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 8ce0072cd700..021783b1f46a 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -116,6 +116,8 @@ struct x86_msi_ops x86_msi = {
.teardown_msi_irqs = default_teardown_msi_irqs,
.restore_msi_irqs = default_restore_msi_irqs,
.setup_hpet_msi = default_setup_hpet_msi,
+ .msi_mask_irq = default_msi_mask_irq,
+ .msix_mask_irq = default_msix_mask_irq,
};
/* MSI arch specific hooks */
@@ -138,6 +140,14 @@ void arch_restore_msi_irqs(struct pci_dev *dev, int irq)
{
x86_msi.restore_msi_irqs(dev, irq);
}
+u32 arch_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+ return x86_msi.msi_mask_irq(desc, mask, flag);
+}
+u32 arch_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+ return x86_msi.msix_mask_irq(desc, flag);
+}
#endif
struct x86_io_apic_ops x86_io_apic_ops = {
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index b30e937689d6..7fb24e53d4c8 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -354,12 +354,12 @@ static void coalesce_windows(struct pci_root_info *info, unsigned long type)
* the kernel resource tree doesn't allow overlaps.
*/
if (resource_overlaps(res1, res2)) {
- res1->start = min(res1->start, res2->start);
- res1->end = max(res1->end, res2->end);
+ res2->start = min(res1->start, res2->start);
+ res2->end = max(res1->end, res2->end);
dev_info(&info->bridge->dev,
"host bridge window expanded to %pR; %pR ignored\n",
- res1, res2);
- res2->flags = 0;
+ res2, res1);
+ res1->flags = 0;
}
}
}
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index f5809fa2753e..b046e070e088 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -231,7 +231,7 @@ static int quirk_pcie_aspm_write(struct pci_bus *bus, unsigned int devfn, int wh
offset = quirk_aspm_offset[GET_INDEX(bus->self->device, devfn)];
if ((offset) && (where == offset))
- value = value & 0xfffffffc;
+ value = value & ~PCI_EXP_LNKCTL_ASPMC;
return raw_pci_write(pci_domain_nr(bus), bus->number,
devfn, where, size, value);
@@ -252,7 +252,7 @@ static struct pci_ops quirk_pcie_aspm_ops = {
*/
static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
{
- int cap_base, i;
+ int i;
struct pci_bus *pbus;
struct pci_dev *dev;
@@ -278,7 +278,7 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
for (i = GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i)
quirk_aspm_offset[i] = 0;
- pbus->ops = pbus->parent->ops;
+ pci_bus_set_ops(pbus, pbus->parent->ops);
} else {
/*
* If devices are attached to the root port at power-up or
@@ -286,13 +286,15 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
* each root port to save the register offsets and replace the
* bus ops.
*/
- list_for_each_entry(dev, &pbus->devices, bus_list) {
+ list_for_each_entry(dev, &pbus->devices, bus_list)
/* There are 0 to 8 devices attached to this bus */
- cap_base = pci_find_capability(dev, PCI_CAP_ID_EXP);
- quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] = cap_base + 0x10;
- }
- pbus->ops = &quirk_pcie_aspm_ops;
+ quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] =
+ dev->pcie_cap + PCI_EXP_LNKCTL;
+
+ pci_bus_set_ops(pbus, &quirk_pcie_aspm_ops);
+ dev_info(&pbus->dev, "writes to ASPM control bits will be ignored\n");
}
+
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA, pcie_rootport_aspm_quirk);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA1, pcie_rootport_aspm_quirk);
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 48e8461057ba..5eee4959785d 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -382,7 +382,14 @@ static void xen_teardown_msi_irq(unsigned int irq)
{
xen_destroy_irq(irq);
}
-
+static u32 xen_nop_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+ return 0;
+}
+static u32 xen_nop_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+ return 0;
+}
#endif
int __init pci_xen_init(void)
@@ -406,6 +413,8 @@ int __init pci_xen_init(void)
x86_msi.setup_msi_irqs = xen_setup_msi_irqs;
x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs;
+ x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
+ x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
#endif
return 0;
}
@@ -485,6 +494,8 @@ int __init pci_xen_initial_domain(void)
x86_msi.setup_msi_irqs = xen_initdom_setup_msi_irqs;
x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
x86_msi.restore_msi_irqs = xen_initdom_restore_msi_irqs;
+ x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
+ x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
#endif
xen_setup_acpi_sci();
__acpi_register_gsi = acpi_register_gsi_xen;