summaryrefslogtreecommitdiff
path: root/arch/x86/pci
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 05:03:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 05:03:25 +0300
commit857f8640147c9fb43f20e43cbca6452710e1ca5d (patch)
tree76a92068d703b8001ca790ffa096d435fa24ae81 /arch/x86/pci
parent8f3207c7eab9d885cc64c778416537034a7d9c5b (diff)
parent3146c8f4de9b0858794a902f273aec13f168596e (diff)
downloadlinux-857f8640147c9fb43f20e43cbca6452710e1ca5d.tar.xz
Merge tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas: - add framework for supporting PCIe devices in Endpoint mode (Kishon Vijay Abraham I) - use non-postable PCI config space mappings when possible (Lorenzo Pieralisi) - clean up and unify mmap of PCI BARs (David Woodhouse) - export and unify Function Level Reset support (Christoph Hellwig) - avoid FLR for Intel 82579 NICs (Sasha Neftin) - add pci_request_irq() and pci_free_irq() helpers (Christoph Hellwig) - short-circuit config access failures for disconnected devices (Keith Busch) - remove D3 sleep delay when possible (Adrian Hunter) - freeze PME scan before suspending devices (Lukas Wunner) - stop disabling MSI/MSI-X in pci_device_shutdown() (Prarit Bhargava) - disable boot interrupt quirk for ASUS M2N-LR (Stefan Assmann) - add arch-specific alignment control to improve device passthrough by avoiding multiple BARs in a page (Yongji Xie) - add sysfs sriov_drivers_autoprobe to control VF driver binding (Bodong Wang) - allow slots below PCI-to-PCIe "reverse bridges" (Bjorn Helgaas) - fix crashes when unbinding host controllers that don't support removal (Brian Norris) - add driver for MicroSemi Switchtec management interface (Logan Gunthorpe) - add driver for Faraday Technology FTPCI100 host bridge (Linus Walleij) - add i.MX7D support (Andrey Smirnov) - use generic MSI support for Aardvark (Thomas Petazzoni) - make Rockchip driver modular (Brian Norris) - advertise 128-byte Read Completion Boundary support for Rockchip (Shawn Lin) - advertise PCI_EXP_LNKSTA_SLC for Rockchip root port (Shawn Lin) - convert atomic_t to refcount_t in HV driver (Elena Reshetova) - add CPU IRQ affinity in HV driver (K. Y. Srinivasan) - fix PCI bus removal in HV driver (Long Li) - add support for ThunderX2 DMA alias topology (Jayachandran C) - add ThunderX pass2.x 2nd node MCFG quirk (Tomasz Nowicki) - add ITE 8893 bridge DMA alias quirk (Jarod Wilson) - restrict Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices (Manish Jaggi) * tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (146 commits) PCI: Don't allow unbinding host controllers that aren't prepared ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP MAINTAINERS: Add PCI Endpoint maintainer Documentation: PCI: Add userguide for PCI endpoint test function tools: PCI: Add sample test script to invoke pcitest tools: PCI: Add a userspace tool to test PCI endpoint Documentation: misc-devices: Add Documentation for pci-endpoint-test driver misc: Add host side PCI driver for PCI test function device PCI: Add device IDs for DRA74x and DRA72x dt-bindings: PCI: dra7xx: Add DT bindings to enable unaligned access PCI: dwc: dra7xx: Workaround for errata id i870 dt-bindings: PCI: dra7xx: Add DT bindings for PCI dra7xx EP mode PCI: dwc: dra7xx: Add EP mode support PCI: dwc: dra7xx: Facilitate wrapper and MSI interrupts to be enabled independently dt-bindings: PCI: Add DT bindings for PCI designware EP mode PCI: dwc: designware: Add EP mode support Documentation: PCI: Add binding documentation for pci-test endpoint function ixgbe: Use pcie_flr() instead of duplicating it IB/hfi1: Use pcie_flr() instead of duplicating it PCI: imx6: Fix spelling mistake: "contol" -> "control" ...
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/i386.c47
1 files changed, 0 insertions, 47 deletions
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 6fa84d531f4f..7b4307163eac 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -406,50 +406,3 @@ void __init pcibios_resource_survey(void)
*/
ioapic_insert_resources();
}
-
-static const struct vm_operations_struct pci_mmap_ops = {
- .access = generic_access_phys,
-};
-
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
- enum pci_mmap_state mmap_state, int write_combine)
-{
- unsigned long prot;
-
- /* I/O space cannot be accessed via normal processor loads and
- * stores on this platform.
- */
- if (mmap_state == pci_mmap_io)
- return -EINVAL;
-
- prot = pgprot_val(vma->vm_page_prot);
-
- /*
- * Return error if pat is not enabled and write_combine is requested.
- * Caller can followup with UC MINUS request and add a WC mtrr if there
- * is a free mtrr slot.
- */
- if (!pat_enabled() && write_combine)
- return -EINVAL;
-
- if (pat_enabled() && write_combine)
- prot |= cachemode2protval(_PAGE_CACHE_MODE_WC);
- else if (pat_enabled() || boot_cpu_data.x86 > 3)
- /*
- * ioremap() and ioremap_nocache() defaults to UC MINUS for now.
- * To avoid attribute conflicts, request UC MINUS here
- * as well.
- */
- prot |= cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS);
-
- vma->vm_page_prot = __pgprot(prot);
-
- if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
- return -EAGAIN;
-
- vma->vm_ops = &pci_mmap_ops;
-
- return 0;
-}