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| author | Tom St Denis | 2016-12-05 17:39:19 +0100 |
|---|---|---|
| committer | Alex Deucher | 2016-12-08 20:12:17 +0100 |
| commit | c5a60ce81b4962d35a6bbb328fb234d33254cfb7 (patch) | |
| tree | 4fdb880c0467c68e9aee75febc93a066928ecd19 /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | |
| parent | drm/amd/amdgpu: export vbios information (v2) (diff) | |
| download | kernel-qcow2-linux-c5a60ce81b4962d35a6bbb328fb234d33254cfb7.tar.gz kernel-qcow2-linux-c5a60ce81b4962d35a6bbb328fb234d33254cfb7.tar.xz kernel-qcow2-linux-c5a60ce81b4962d35a6bbb328fb234d33254cfb7.zip | |
drm/amd/amdgpu: Add debugfs support for reading GPRs (v2)
Implemented for SGPRs for GFX v8 initially.
(v2) cleanup minor whitespace and remove sanity check and
addressing is in dwords not bytes
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
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_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index e90e541581e2..6324f67bdb1f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -5184,6 +5184,21 @@ static uint32_t wave_read_ind(struct amdgpu_device *adev, uint32_t simd, uint32_ return RREG32(mmSQ_IND_DATA); } +static void wave_read_regs(struct amdgpu_device *adev, uint32_t simd, + uint32_t wave, uint32_t thread, + uint32_t regno, uint32_t num, uint32_t *out) +{ + WREG32(mmSQ_IND_INDEX, + (wave << SQ_IND_INDEX__WAVE_ID__SHIFT) | + (simd << SQ_IND_INDEX__SIMD_ID__SHIFT) | + (regno << SQ_IND_INDEX__INDEX__SHIFT) | + (thread << SQ_IND_INDEX__THREAD_ID__SHIFT) | + (SQ_IND_INDEX__FORCE_READ_MASK) | + (SQ_IND_INDEX__AUTO_INCR_MASK)); + while (num--) + *(out++) = RREG32(mmSQ_IND_DATA); +} + static void gfx_v8_0_read_wave_data(struct amdgpu_device *adev, uint32_t simd, uint32_t wave, uint32_t *dst, int *no_fields) { /* type 0 wave data */ @@ -5208,11 +5223,21 @@ static void gfx_v8_0_read_wave_data(struct amdgpu_device *adev, uint32_t simd, u dst[(*no_fields)++] = wave_read_ind(adev, simd, wave, ixSQ_WAVE_M0); } +static void gfx_v8_0_read_wave_sgprs(struct amdgpu_device *adev, uint32_t simd, + uint32_t wave, uint32_t start, + uint32_t size, uint32_t *dst) +{ + wave_read_regs( + adev, simd, wave, 0, + start + SQIND_WAVE_SGPRS_OFFSET, size, dst); +} + static const struct amdgpu_gfx_funcs gfx_v8_0_gfx_funcs = { .get_gpu_clock_counter = &gfx_v8_0_get_gpu_clock_counter, .select_se_sh = &gfx_v8_0_select_se_sh, .read_wave_data = &gfx_v8_0_read_wave_data, + .read_wave_sgprs = &gfx_v8_0_read_wave_sgprs, }; static int gfx_v8_0_early_init(void *handle) |