diff options
| author | Stanislaw Kardach <kda@semihalf.com> | 2021-04-12 14:10:12 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-05-26 08:50:49 +0300 |
| commit | db756746807b5cb64bbe2e6ac4ff38d18b7787ed (patch) | |
| tree | 1d4e4f73966f6ae51b51188a0b67bb4b7c0cb445 /arch | |
| parent | 8f3e136ff378a2b22dbc0ca2a6e58022e6df36d2 (diff) | |
| download | linux-db756746807b5cb64bbe2e6ac4ff38d18b7787ed.tar.xz | |
riscv: enable generic PCI resource mapping
Enable the PCI resource mapping on RISC-V using the generic framework.
This allows userspace applications to mmap PCI resources using
/sys/devices/pci*/*/resource* interface.
The mmap has been tested with Intel x520-DA2 NIC card on a HiFive
Unmatched board (SiFive FU740 SoC).
Signed-off-by: Stanislaw Kardach <kda@semihalf.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/include/asm/pci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/pci.h b/arch/riscv/include/asm/pci.h index 658e112c3ce7..7fd52a30e605 100644 --- a/arch/riscv/include/asm/pci.h +++ b/arch/riscv/include/asm/pci.h @@ -18,6 +18,8 @@ /* RISC-V shim does not initialize PCI bus */ #define pcibios_assign_all_busses() 1 +#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 + extern int isa_dma_bridge_buggy; #ifdef CONFIG_PCI |