diff options
| author | Thomas Bogendoerfer <tbogendoerfer@suse.de> | 2019-10-24 13:18:28 +0300 |
|---|---|---|
| committer | Paul Burton <paulburton@kernel.org> | 2019-11-02 00:58:49 +0300 |
| commit | b9e9defb5e603a8c0822c9e1f457fc823fab5a15 (patch) | |
| tree | 654c91acb45b1c19c805e5c69b630008497136be /arch/mips/pci | |
| parent | 02fce139fd14d3b0126f0a72e8c0a83b5b01f9f5 (diff) | |
| download | linux-b9e9defb5e603a8c0822c9e1f457fc823fab5a15.tar.xz | |
MIPS: PCI: make phys_to_dma/dma_to_phys for pci-xtalk-bridge common
All platforms using pci-xtalk-bridge can share common phys_to_dma/
dma_to_phys function. So we move it form ip27 specific file to
pci-xtalk-bridge.c
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/pci')
| -rw-r--r-- | arch/mips/pci/pci-ip27.c | 13 | ||||
| -rw-r--r-- | arch/mips/pci/pci-xtalk-bridge.c | 16 |
2 files changed, 16 insertions, 13 deletions
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c index 441eb9383b20..45a0be40c0c3 100644 --- a/arch/mips/pci/pci-ip27.c +++ b/arch/mips/pci/pci-ip27.c @@ -9,19 +9,6 @@ */ #include <asm/pci/bridge.h> -dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) -{ - struct pci_dev *pdev = to_pci_dev(dev); - struct bridge_controller *bc = BRIDGE_CONTROLLER(pdev->bus); - - return bc->baddr + paddr; -} - -phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr) -{ - return dma_addr & ~(0xffUL << 56); -} - #ifdef CONFIG_NUMA int pcibus_to_node(struct pci_bus *bus) { diff --git a/arch/mips/pci/pci-xtalk-bridge.c b/arch/mips/pci/pci-xtalk-bridge.c index 312632171832..72e60df505f4 100644 --- a/arch/mips/pci/pci-xtalk-bridge.c +++ b/arch/mips/pci/pci-xtalk-bridge.c @@ -23,6 +23,22 @@ #define CRC16_VALID 0xb001 /* + * Common phys<->dma mapping for platforms using pci xtalk bridge + */ +dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct bridge_controller *bc = BRIDGE_CONTROLLER(pdev->bus); + + return bc->baddr + paddr; +} + +phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr) +{ + return dma_addr & ~(0xffUL << 56); +} + +/* * Most of the IOC3 PCI config register aren't present * we emulate what is needed for a normal PCI enumeration */ |