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| author | Atish Patra <atish.patra@wdc.com> | 2020-11-18 16:38:29 -0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-01-14 15:08:58 -0800 |
| commit | 4f0e8eef772ee4438f304b2178bc28c958b6c13d (patch) | |
| tree | f793c5f7bbfdf6b9546db49bb98563ec212d504d /arch/riscv/include/asm/pci.h | |
| parent | 3e5b0bdb2a4dd8c09a9db01b1ead3f69cabd0c67 (diff) | |
| download | linux-stable-4f0e8eef772ee4438f304b2178bc28c958b6c13d.tar.gz linux-stable-4f0e8eef772ee4438f304b2178bc28c958b6c13d.tar.bz2 linux-stable-4f0e8eef772ee4438f304b2178bc28c958b6c13d.zip | |
riscv: Add numa support for riscv64 platform
Use the generic numa implementation to add NUMA support for RISC-V.
This is based on Greentime's patch[1] but modified to use generic NUMA
implementation and few more fixes.
[1] https://lkml.org/lkml/2020/1/10/233
Co-developed-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/include/asm/pci.h')
| -rw-r--r-- | arch/riscv/include/asm/pci.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/pci.h b/arch/riscv/include/asm/pci.h index 1c473a1bd986..658e112c3ce7 100644 --- a/arch/riscv/include/asm/pci.h +++ b/arch/riscv/include/asm/pci.h @@ -32,6 +32,20 @@ static inline int pci_proc_domain(struct pci_bus *bus) /* always show the domain in /proc */ return 1; } + +#ifdef CONFIG_NUMA + +static inline int pcibus_to_node(struct pci_bus *bus) +{ + return dev_to_node(&bus->dev); +} +#ifndef cpumask_of_pcibus +#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ + cpu_all_mask : \ + cpumask_of_node(pcibus_to_node(bus))) +#endif +#endif /* CONFIG_NUMA */ + #endif /* CONFIG_PCI */ #endif /* _ASM_RISCV_PCI_H */ |