[PATCH RESEND] riscv: enable generic PCI resource mapping
palmerdabbelt at google.com
Sun May 23 15:24:14 PDT 2021
From: Stanislaw Kardach <kda at semihalf.com>
Enable the PCI resource mapping on RISC-V using the generic framework.
This allows userspace applications to mmap PCI resources using
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 at semihalf.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt at google.com>
David, who was CC'd on the original patch, pointed out I missed this one. For
some reason it's not in my inbox, I'm not entirely sure why as it landed on
Given the discrepency I thought it would be best to just send this out again.
I've put this on for-next.
arch/riscv/include/asm/pci.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/riscv/include/asm/pci.h b/arch/riscv/include/asm/pci.h
index 658e112c3ce7..7fd52a30e605 100644
@@ -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;
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