Commit 7a87040c authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add HDP remap functionality to nbio 7.7 



Was missing before and would have resulted in a write to
a non-existant register. Normally APUs don't use HDP, but
other asics could use this code and APUs do use the HDP
when used in passthrough.

Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 49791b98

drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c

+9 −0
Original line number Diff line number Diff line
@@ -28,6 +28,14 @@ 
#include "nbio/nbio_7_7_0_sh_mask.h"

#include <uapi/linux/kfd_ioctl.h>



static void nbio_v7_7_remap_hdp_registers(struct amdgpu_device *adev)

{

	WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,

		     adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);

	WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,

		     adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);

}



static u32 nbio_v7_7_get_rev_id(struct amdgpu_device *adev)

{

	u32 tmp;
@@ -336,4 +344,5 @@ const struct amdgpu_nbio_funcs nbio_v7_7_funcs = { 
	.get_clockgating_state = nbio_v7_7_get_clockgating_state,

	.ih_control = nbio_v7_7_ih_control,

	.init_registers = nbio_v7_7_init_registers,

	.remap_hdp_registers = nbio_v7_7_remap_hdp_registers,

};