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path: root/drivers/gpu/drm/amd/amdgpu/hdp_v5_0.c (follow)
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2025-05-08Reapply: drm/amdgpu: Use generic hdp flush functionLijo Lazar1-17/+1
Except HDP v5.2 all use a common logic for HDP flush. Use a generic function. HDP v5.2 forces NO_KIQ logic, revisit it later. Reapply after fixing up an HDP regression. v2: merge the fix (Alex) Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> (v1) Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-05-08drm/amdgpu/hdp5: use memcfg register to post the write for HDP flushAlex Deucher1-1/+6
Reading back the remapped HDP flush register seems to cause problems on some platforms. All we need is a read, so read back the memcfg register. Fixes: cf424020e040 ("drm/amdgpu/hdp5.0: do a posting read when flushing HDP") Reported-by: Alexey Klimov <alexey.klimov@linaro.org> Link: https://lists.freedesktop.org/archives/amd-gfx/2025-April/123150.html Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4119 Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3908 Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-05-07Revert "drm/amdgpu: Use generic hdp flush function"Alex Deucher1-1/+12
This reverts commit 18a878fd8aef0ec21648a3782f55a79790cd4073. Revert this temporarily to make it easier to fix a regression in the HDP handling. Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-11drm/amdgpu: Use generic hdp flush functionLijo Lazar1-12/+1
Except HDP v5.2 all use a common logic for HDP flush. Use a generic function. HDP v5.2 forces NO_KIQ logic, revisit it later. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-02-12drm/amdgpu: Clean up atom header file inclusionLijo Lazar1-1/+0
atom bios header files are not required in these files. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-12-02drm/amdgpu/hdp5.0: do a posting read when flushing HDPAlex Deucher1-2/+5
Need to read back to make sure the write goes through. Cc: David Belanger <david.belanger@amd.com> Reviewed-by: Frank Min <frank.min@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2024-08-20drm/amd/amdgpu: allow use kiq to do hdp flush under sriovVictor Zhao1-1/+1
when use cpu to do page table update under sriov runtime, since mmio access is blocked, kiq has to be used to flush hdp. change WREG32_NO_KIQ to WREG32 to allow kiq. Signed-off-by: Victor Zhao <Victor.Zhao@amd.com> Reviewed-by: Emily Deng <Emily.Deng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-08drm/amdgpu: expand cg_flags from u32 to u64Evan Quan1-1/+1
With this, we can support more CG flags. Signed-off-by: Evan Quan <evan.quan@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-30drm/amdgpu: update HDP LS settingsEvan Quan1-37/+48
Avoid unnecessary register programming on feature disablement. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-05drm/amdgpu: add hdp version 5 functionsLikun Gao1-0/+212
Unify hdp related function into hdp structure for hdp version 5. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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