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| author | Yunxiang Li <Yunxiang.Li@amd.com> | 2024-05-24 23:14:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-08 08:56:38 +0300 |
| commit | 314883f6db870669bed946414efe06b4ae648472 (patch) | |
| tree | a91c13ea492e26f9387d7f0fafc8867dd691afdd | |
| parent | 72de6c05742f383405581eda4fa2544559110edf (diff) | |
| download | linux-314883f6db870669bed946414efe06b4ae648472.tar.xz | |
drm/amdgpu: add skip_hw_access checks for sriov
[ Upstream commit b3948ad1ac582f560e1f3aeaecf384619921c48d ]
Accessing registers via host is missing the check for skip_hw_access and
the lockdep check that comes with it.
Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 923d51f16ec8..2359d1d60275 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -977,6 +977,9 @@ u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 f return 0; } + if (amdgpu_device_skip_hw_access(adev)) + return 0; + reg_access_ctrl = &adev->gfx.rlc.reg_access_ctrl[xcc_id]; scratch_reg0 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg0; scratch_reg1 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg1; @@ -1053,6 +1056,9 @@ void amdgpu_sriov_wreg(struct amdgpu_device *adev, { u32 rlcg_flag; + if (amdgpu_device_skip_hw_access(adev)) + return; + if (!amdgpu_sriov_runtime(adev) && amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, true, &rlcg_flag)) { amdgpu_virt_rlcg_reg_rw(adev, offset, value, rlcg_flag, xcc_id); @@ -1070,6 +1076,9 @@ u32 amdgpu_sriov_rreg(struct amdgpu_device *adev, { u32 rlcg_flag; + if (amdgpu_device_skip_hw_access(adev)) + return 0; + if (!amdgpu_sriov_runtime(adev) && amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, false, &rlcg_flag)) return amdgpu_virt_rlcg_reg_rw(adev, offset, 0, rlcg_flag, xcc_id); |