diff options
| author | ZhenGuo Yin <zhenguo.yin@amd.com> | 2022-06-06 05:36:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-08 18:41:13 +0300 |
| commit | 851dd8625320fb626b6ab6399b2402fd84abcdfb (patch) | |
| tree | ada6125ea4399833253b9a96839061688c6b36c4 /drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | |
| parent | 0381ac3ca2e727d4dfb7264d9416a8ba6bb6c18b (diff) | |
| download | linux-851dd8625320fb626b6ab6399b2402fd84abcdfb.tar.xz | |
drm/amdgpu: fix scratch register access method in SRIOV
The scratch register should be accessed through MMIO instead of RLCG
in SRIOV, since it being used in RLCG register access function.
Fixes: d54762cc3e6a ("drm/amdgpu: nuke dynamic gfx scratch reg allocation")
Signed-off-by: ZhenGuo Yin <zhenguo.yin@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index 797e90e8ce28..abf2bf7f1a79 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -3780,11 +3780,12 @@ static void gfx_v10_0_wait_reg_mem(struct amdgpu_ring *ring, int eng_sel, static int gfx_v10_0_ring_test_ring(struct amdgpu_ring *ring) { struct amdgpu_device *adev = ring->adev; + uint32_t scratch = SOC15_REG_OFFSET(GC, 0, mmSCRATCH_REG0); uint32_t tmp = 0; unsigned i; int r; - WREG32_SOC15(GC, 0, mmSCRATCH_REG0, 0xCAFEDEAD); + WREG32(scratch, 0xCAFEDEAD); r = amdgpu_ring_alloc(ring, 3); if (r) { DRM_ERROR("amdgpu: cp failed to lock ring %d (%d).\n", @@ -3793,13 +3794,13 @@ static int gfx_v10_0_ring_test_ring(struct amdgpu_ring *ring) } amdgpu_ring_write(ring, PACKET3(PACKET3_SET_UCONFIG_REG, 1)); - amdgpu_ring_write(ring, SOC15_REG_OFFSET(GC, 0, mmSCRATCH_REG0) - + amdgpu_ring_write(ring, scratch - PACKET3_SET_UCONFIG_REG_START); amdgpu_ring_write(ring, 0xDEADBEEF); amdgpu_ring_commit(ring); for (i = 0; i < adev->usec_timeout; i++) { - tmp = RREG32_SOC15(GC, 0, mmSCRATCH_REG0); + tmp = RREG32(scratch); if (tmp == 0xDEADBEEF) break; if (amdgpu_emu_mode == 1) |