drm/amdgpu: add HDP asic callbacks for CIK
authorAlex Deucher <alexander.deucher@amd.com>
Wed, 6 Sep 2017 22:06:01 +0000 (18:06 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 19 Feb 2018 19:17:12 +0000 (14:17 -0500)
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>
drivers/gpu/drm/amd/amdgpu/cik.c

index 8e59e65..204ce80 100644 (file)
@@ -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)