From 2d5e0807edf3a3ff44e52ab8ab3cfd675f6c8dad Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 6 Sep 2017 18:05:43 -0400 Subject: drm/amdgpu: add HDP asic callbacks for SI 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/si.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/si.c') diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c index 543101d5a5ed..f61a431b9553 100644 --- a/drivers/gpu/drm/amd/amdgpu/si.c +++ b/drivers/gpu/drm/amd/amdgpu/si.c @@ -1230,6 +1230,18 @@ static void si_detect_hw_virtualization(struct amdgpu_device *adev) adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; } +static void si_flush_hdp(struct amdgpu_device *adev) +{ + WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1); + RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL); +} + +static void si_invalidate_hdp(struct amdgpu_device *adev) +{ + WREG32(mmHDP_DEBUG0, 1); + RREG32(mmHDP_DEBUG0); +} + static const struct amdgpu_asic_funcs si_asic_funcs = { .read_disabled_bios = &si_read_disabled_bios, @@ -1241,6 +1253,8 @@ static const struct amdgpu_asic_funcs si_asic_funcs = .set_uvd_clocks = &si_set_uvd_clocks, .set_vce_clocks = NULL, .get_config_memsize = &si_get_config_memsize, + .flush_hdp = &si_flush_hdp, + .invalidate_hdp = &si_invalidate_hdp, }; static uint32_t si_get_rev_id(struct amdgpu_device *adev) -- cgit v1.2.3