From: Alex Deucher Date: Wed, 6 Sep 2017 22:05:43 +0000 (-0400) Subject: drm/amdgpu: add HDP asic callbacks for SI X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2d5e0807edf3a3ff44e52ab8ab3cfd675f6c8dad;p=linux.git drm/amdgpu: add HDP asic callbacks for SI 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 --- diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c index 543101d5a5edd..f61a431b9553a 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)