diff options
| author | Genevieve Chan <genevieve.chan@starfivetech.com> | 2023-03-17 12:29:58 +0300 |
|---|---|---|
| committer | Ley Foon Tan <leyfoon.tan@starfivetech.com> | 2023-12-04 06:00:14 +0300 |
| commit | 2d1ef50744b642a93bb3cc3756511594d900813e (patch) | |
| tree | d9e5f08c36bc5e1397819d49b9f819bcbe8bea90 | |
| parent | b05a0cf9437c13e69e1a19742651843e3d1996b8 (diff) | |
| download | linux-2d1ef50744b642a93bb3cc3756511594d900813e.tar.xz | |
riscv: starfive: Add DMA non-coherent support in StarFive Dubhe
This patch adds the dma non-coherent node in device tree.
Sets noncoherent_supported to true for CONFIG_SOC_STARFIVE_DUBHE
Signed-off-by: Genevieve Chan <genevieve.chan@starfivetech.com>
| -rw-r--r-- | arch/riscv/boot/dts/starfive/dubhe.dtsi | 1 | ||||
| -rw-r--r-- | arch/riscv/mm/dma-noncoherent.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/boot/dts/starfive/dubhe.dtsi b/arch/riscv/boot/dts/starfive/dubhe.dtsi index a0506d46134a..885164d89c10 100644 --- a/arch/riscv/boot/dts/starfive/dubhe.dtsi +++ b/arch/riscv/boot/dts/starfive/dubhe.dtsi @@ -61,6 +61,7 @@ #address-cells = <2>; #size-cells = <2>; compatible = "simple-bus"; + dma-noncoherent; ranges; clint: clint@2000000 { diff --git a/arch/riscv/mm/dma-noncoherent.c b/arch/riscv/mm/dma-noncoherent.c index 81ee62da18a5..f8038bf019b0 100644 --- a/arch/riscv/mm/dma-noncoherent.c +++ b/arch/riscv/mm/dma-noncoherent.c @@ -18,6 +18,7 @@ static bool noncoherent_supported; #ifdef CONFIG_SOC_STARFIVE_DUBHE #define DUBHE_UNCACHED_OFFSET 0x400000000 +static bool noncoherent_supported = true; void arch_sync_dma_for_device(phys_addr_t paddr, size_t size, enum dma_data_direction dir) { |