From: Xiangliang Yu <[email protected]> Change ioremap mode from noncache to write combine and it will reduce the read vbios time from 188ms to 8ms.
Signed-off-by: Xiangliang Yu <[email protected]> Signed-off-by: Xiangliang.Yu <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c index ea3a250..c21adf6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c @@ -104,7 +104,7 @@ static bool igp_read_bios_from_vram(struct amdgpu_device *adev) adev->bios = NULL; vram_base = pci_resource_start(adev->pdev, 0); - bios = ioremap(vram_base, size); + bios = ioremap_wc(vram_base, size); if (!bios) { return false; } -- 2.7.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
