From 8a1687ba5b26dda01b4a41eba713472f0a4e9836 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 6 Sep 2017 18:06:24 -0400 Subject: [PATCH 3087/4131] drm/amdgpu: add HDP asic callbacks for VI MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- drivers/gpu/drm/amd/amdgpu/vi.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 729f7e5..58572e7 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -899,6 +899,18 @@ 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, @@ -910,6 +922,8 @@ 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) \ -- 2.7.4