drm/amdgpu/gfx9: implement wave VGPR reading

This is already hooked up to the "amdgpu_gpr" debugfs file used by
the umr userspace debugging tool.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index e8099e28a01e..bc32bbde1165 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -997,12 +997,22 @@ static void gfx_v9_0_read_wave_sgprs(struct amdgpu_device *adev, uint32_t simd,
                 start + SQIND_WAVE_SGPRS_OFFSET, size, dst);
 }
 
+static void gfx_v9_0_read_wave_vgprs(struct amdgpu_device *adev, uint32_t simd,
+                                     uint32_t wave, uint32_t thread,
+                                     uint32_t start, uint32_t size,
+                                     uint32_t *dst)
+{
+        wave_read_regs(
+                adev, simd, wave, thread,
+                start + SQIND_WAVE_VGPRS_OFFSET, size, dst);
+}
 
 static const struct amdgpu_gfx_funcs gfx_v9_0_gfx_funcs = {
         .get_gpu_clock_counter = &gfx_v9_0_get_gpu_clock_counter,
         .select_se_sh = &gfx_v9_0_select_se_sh,
         .read_wave_data = &gfx_v9_0_read_wave_data,
         .read_wave_sgprs = &gfx_v9_0_read_wave_sgprs,
+        .read_wave_vgprs = &gfx_v9_0_read_wave_vgprs,
 };
 
 static void gfx_v9_0_gpu_early_init(struct amdgpu_device *adev)