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drm/amdgpu: add HDP remap functionality to nbio 7.7

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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: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2022-08-30 11:08:09 -04:00
parent 36de13fdb0
commit 8c5708d3da
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c
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@ -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,
};