From: Alex Deucher Date: Wed, 6 Sep 2017 22:06:24 +0000 (-0400) Subject: drm/amdgpu: add HDP asic callbacks for VI X-Git-Tag: v4.17-rc1~185^2~22^2~330 X-Git-Url: https://repo.jachan.dev/linux.git/commitdiff_plain/dd8d07f2fb2a5acb972e62a5cd00f6d56e7d2b8c?ds=inline drm/amdgpu: add HDP asic callbacks for VI Needed to flush and invalidate the HDP block using the CPU. Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Samuel Li --- 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) \