From: Alex Deucher <[email protected]> Needed to flush and invalidate the HDP block using the CPU.
Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Samuel Li <[email protected]> --- drivers/gpu/drm/amd/amdgpu/soc15.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index a74d616..9dff294 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -578,6 +578,20 @@ static uint32_t soc15_get_rev_id(struct amdgpu_device *adev) return nbio_v6_1_get_rev_id(adev); } +static void soc15_flush_hdp(struct amdgpu_device *adev) +{ + if (adev->flags & AMD_IS_APU) + nbio_v7_0_hdp_flush(adev); + else + nbio_v6_1_hdp_flush(adev); +} + +static void soc15_invalidate_hdp(struct amdgpu_device *adev) +{ + WREG32_SOC15(HDP, 0, mmHDP_DEBUG0, 1); + RREG32_SOC15(HDP, 0, mmHDP_DEBUG0); +} + static const struct amdgpu_asic_funcs soc15_asic_funcs = { .read_disabled_bios = &soc15_read_disabled_bios, @@ -589,6 +603,8 @@ static const struct amdgpu_asic_funcs soc15_asic_funcs = .set_uvd_clocks = &soc15_set_uvd_clocks, .set_vce_clocks = &soc15_set_vce_clocks, .get_config_memsize = &soc15_get_config_memsize, + .flush_hdp = &soc15_flush_hdp, + .invalidate_hdp = &soc15_invalidate_hdp, }; static int soc15_common_early_init(void *handle) -- 2.7.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
