From: David Woodhouse <dwmw2@infradead.org>
To: linux-pci@vger.kernel.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 14/27] mn10300: Use generic pci_mmap_resource_range()
Date: Wed, 12 Apr 2017 13:26:03 +0100 [thread overview]
Message-ID: <15683b749605aa5e6733a587d495a8eab596f0e8.1491999859.git.dwmw2@infradead.org> (raw)
In-Reply-To: <cover.1491999859.git.dwmw2@infradead.org>
In-Reply-To: <cover.1491999859.git.dwmw2@infradead.org>
From: David Woodhouse <dwmw@amazon.co.uk>
This was setting vma->vm_flags |= VM_LOCKED. Not sure why...
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
arch/mn10300/include/asm/pci.h | 1 +
arch/mn10300/unit-asb2305/pci-asb2305.c | 24 ------------------------
2 files changed, 1 insertion(+), 24 deletions(-)
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 082b6de..d276549 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -74,6 +74,7 @@ static inline int pci_controller_num(struct pci_dev *dev)
}
#define HAVE_PCI_MMAP
+#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#endif /* __KERNEL__ */
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c
index 4abbbd5..e0f4617 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -210,27 +210,3 @@ void __init pcibios_resource_survey(void)
pcibios_allocate_resources(0);
pcibios_allocate_resources(1);
}
-
-int pci_mmap_page_range(struct pci_dev *dev, int bar,
- struct vm_area_struct *vma,
- enum pci_mmap_state mmap_state, int write_combine)
-{
- unsigned long prot;
-
- /* Leave vm_pgoff as-is, the PCI space address is the physical
- * address on this platform.
- */
- vma->vm_flags |= VM_LOCKED;
-
- prot = pgprot_val(vma->vm_page_prot);
- prot &= ~_PAGE_CACHE;
- vma->vm_page_prot = __pgprot(prot);
-
- /* Write-combine setting is ignored */
- if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
- return -EAGAIN;
-
- return 0;
-}
--
2.9.3
next prev parent reply other threads:[~2017-04-12 12:33 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 12:25 [PATCH v2 00/27] PCI resource mmap cleanup David Woodhouse
2017-04-12 12:25 ` [PATCH v2 01/27] pci: Fix pci_mmap_fits() for HAVE_PCI_RESOURCE_TO_USER platforms David Woodhouse
2017-04-12 12:25 ` [PATCH v2 02/27] pci: Fix another sanity check bug in /proc/pci mmap David Woodhouse
2017-04-12 12:25 ` [PATCH v2 03/27] pci: Only allow WC mmap on prefetchable resources David Woodhouse
2017-04-12 12:25 ` [PATCH v2 04/27] xtensa: Do not mmap PCI BARs to userspace as write-through David Woodhouse
2017-04-12 12:25 ` [PATCH v2 05/27] pci: Add arch_can_pci_mmap_wc() macro David Woodhouse
2017-04-12 12:25 ` [PATCH v2 06/27] pci: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h> David Woodhouse
2017-04-12 12:25 ` [PATCH v2 07/27] pci: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space David Woodhouse
2017-04-12 12:25 ` [PATCH v2 08/27] pci: Use BAR index in sysfs attr->private instead of resource pointer David Woodhouse
2017-04-12 12:25 ` [PATCH v2 09/27] pci: Add BAR index argument to pci_mmap_page_range() David Woodhouse
2017-04-12 12:25 ` [PATCH v2 10/27] pci: Add pci_mmap_resource_range() and use it for ARM64 David Woodhouse
2017-04-12 12:26 ` [PATCH v2 11/27] arm: Use generic pci_mmap_resource_range() David Woodhouse
2017-04-12 12:26 ` [PATCH v2 12/27] cris: " David Woodhouse
2017-04-13 7:37 ` Jesper Nilsson
2017-04-13 8:39 ` David Woodhouse
2017-04-12 12:26 ` [PATCH v2 13/27] mips: " David Woodhouse
2017-04-12 12:26 ` David Woodhouse [this message]
2017-04-12 12:26 ` [PATCH v2 15/27] parisc: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 16/27] sh: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 17/27] unicore: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 18/27] x86: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 19/27] pci: Add I/O BAR support to " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 20/27] powerpc: Use " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 21/27] microblaze: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 22/27] xtensa: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 23/27] ia64: Remove redundant valid_mmap_phys_addr_range() from pci_mmap_page_range() David Woodhouse
2017-04-12 12:26 ` [PATCH v2 24/27] ia64: Remove redundant checks for WC in pci_mmap_page_range() David Woodhouse
2017-04-12 12:26 ` [PATCH v2 25/27] ia64: Use generic pci_mmap_resource_range() David Woodhouse
2017-04-12 21:47 ` Tony Luck
2017-04-12 21:53 ` Thomas Gleixner
2017-04-13 8:39 ` David Woodhouse
2017-04-12 12:26 ` [PATCH v2 26/27] sparc: " David Woodhouse
2017-04-12 12:26 ` [PATCH v2 27/27] pci: Kill ARCH_GENERIC_PCI_MMAP_RESOURCE David Woodhouse
2017-04-13 9:22 ` [PATCH v2 14/27] mn10300: Use generic pci_mmap_resource_range() David Howells
2017-04-13 9:22 ` [PATCH v2 10/27] pci: Add pci_mmap_resource_range() and use it for ARM64 David Howells
2017-04-18 18:28 ` [PATCH v2 00/27] PCI resource mmap cleanup Bjorn Helgaas
2017-04-18 18:51 ` Bjorn Helgaas
2017-04-19 7:23 ` David Woodhouse
2017-04-19 18:37 ` Bjorn Helgaas
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