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| author | Alex Deucher <alexander.deucher@amd.com> | 2017-09-06 18:06:24 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:17:13 -0500 |
| commit | dd8d07f2fb2a5acb972e62a5cd00f6d56e7d2b8c (patch) | |
| tree | d3266aa57ba4fefa8ab45407944a497987448bda /drivers/gpu/drm/amd/amdgpu/vi.c | |
| parent | 13854c60d7753cbb2bb1db6463df220164ec001a (diff) | |
| download | lwn-dd8d07f2fb2a5acb972e62a5cd00f6d56e7d2b8c.tar.gz lwn-dd8d07f2fb2a5acb972e62a5cd00f6d56e7d2b8c.zip | |
drm/amdgpu: add HDP asic callbacks for VI
Needed to flush and invalidate the HDP block using the CPU.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Samuel Li <Samuel.Li@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 1e3e05a11f7a..fbb77b959f8a 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -856,6 +856,18 @@ static uint32_t vi_get_rev_id(struct amdgpu_device *adev) >> PCIE_EFUSE4__STRAP_BIF_ATI_REV_ID__SHIFT; } +static void vi_flush_hdp(struct amdgpu_device *adev) +{ + WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1); + RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL); +} + +static void vi_invalidate_hdp(struct amdgpu_device *adev) +{ + WREG32(mmHDP_DEBUG0, 1); + RREG32(mmHDP_DEBUG0); +} + static const struct amdgpu_asic_funcs vi_asic_funcs = { .read_disabled_bios = &vi_read_disabled_bios, @@ -867,6 +879,8 @@ static const struct amdgpu_asic_funcs vi_asic_funcs = .set_uvd_clocks = &vi_set_uvd_clocks, .set_vce_clocks = &vi_set_vce_clocks, .get_config_memsize = &vi_get_config_memsize, + .flush_hdp = &vi_flush_hdp, + .invalidate_hdp = &vi_invalidate_hdp, }; #define CZ_REV_BRISTOL(rev) \ |