Commit 2d5e0807 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add HDP asic callbacks for SI 



Needed to flush and invalidate the HDP block using the CPU.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarSamuel Li <Samuel.Li@amd.com>
parent 2df1b8b6

drivers/gpu/drm/amd/amdgpu/si.c

+14 −0
Original line number Diff line number Diff line
@@ -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)