From 56b30ac84c517eefcfd5384339fee5d8a675f811 Mon Sep 17 00:00:00 2001 From: ZhenGuo Yin Date: Wed, 6 Mar 2024 17:59:29 +0800 Subject: drm/amdgpu: Skip access PF-only registers on gfx10/gfxhub2_1 under SRIOV [Why] RLCG interface returns "out-of-range" error under SRIOV VF when accessing PF-only registers. [How] Skip access PF-only registers on gfx10/gfxhub2_1 under SRIOV. Acked-by: Alex Deucher Signed-off-by: ZhenGuo Yin Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c') diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index 904b9ff5ead2..f90905ef32c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -3657,6 +3657,9 @@ static void gfx_v10_0_init_spm_golden_registers(struct amdgpu_device *adev) static void gfx_v10_0_init_golden_registers(struct amdgpu_device *adev) { + if (amdgpu_sriov_vf(adev)) + return; + switch (amdgpu_ip_version(adev, GC_HWIP, 0)) { case IP_VERSION(10, 1, 10): soc15_program_register_sequence(adev, @@ -4982,7 +4985,8 @@ static void gfx_v10_0_constants_init(struct amdgpu_device *adev) u32 tmp; int i; - WREG32_FIELD15(GC, 0, GRBM_CNTL, READ_TIMEOUT, 0xff); + if (!amdgpu_sriov_vf(adev)) + WREG32_FIELD15(GC, 0, GRBM_CNTL, READ_TIMEOUT, 0xff); gfx_v10_0_setup_rb(adev); gfx_v10_0_get_cu_info(adev, &adev->gfx.cu_info); @@ -7163,7 +7167,7 @@ static int gfx_v10_0_hw_init(void *handle) if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(10, 3, 0)) gfx_v10_3_program_pbb_mode(adev); - if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(10, 3, 0)) + if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(10, 3, 0) && !amdgpu_sriov_vf(adev)) gfx_v10_3_set_power_brake_sequence(adev); return r; -- cgit v1.2.3-70-g09d2