From 13854c60d7753cbb2bb1db6463df220164ec001a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 6 Sep 2017 18:06:01 -0400 Subject: [PATCH] drm/amdgpu: add HDP asic callbacks for CIK 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/cik.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c index 8e59e65efd44..204ce807372c 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik.c +++ b/drivers/gpu/drm/amd/amdgpu/cik.c @@ -1715,6 +1715,18 @@ static void cik_detect_hw_virtualization(struct amdgpu_device *adev) adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; } +static void cik_flush_hdp(struct amdgpu_device *adev) +{ + WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1); + RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL); +} + +static void cik_invalidate_hdp(struct amdgpu_device *adev) +{ + WREG32(mmHDP_DEBUG0, 1); + RREG32(mmHDP_DEBUG0); +} + static const struct amdgpu_asic_funcs cik_asic_funcs = { .read_disabled_bios = &cik_read_disabled_bios, @@ -1726,6 +1738,8 @@ static const struct amdgpu_asic_funcs cik_asic_funcs = .set_uvd_clocks = &cik_set_uvd_clocks, .set_vce_clocks = &cik_set_vce_clocks, .get_config_memsize = &cik_get_config_memsize, + .flush_hdp = &cik_flush_hdp, + .invalidate_hdp = &cik_invalidate_hdp, }; static int cik_common_early_init(void *handle) -- GitLab