So we don't have to look this up via MMIO when users request
the value via ioctl.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 6fc4b29..fa3e579 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1237,6 +1237,11 @@ static void gfx_v9_0_setup_rb(struct amdgpu_device *adev)
data = gfx_v9_0_get_rb_active_bitmap(adev);
active_rbs |= data << ((i *
adev->gfx.config.max_sh_per_se + j) *
rb_bitmap_width_per_sh);
+ /* cache the values for userspace */
+ adev->gfx.config.rb_config[i][j].rb_backend_disable =
+ RREG32(SOC15_REG_OFFSET(GC, 0,
mmCC_RB_BACKEND_DISABLE));
+
adev->gfx.config.rb_config[i][j].user_rb_backend_disable =
+ RREG32(SOC15_REG_OFFSET(GC, 0,
mmGC_USER_RB_BACKEND_DISABLE));
}
}
gfx_v9_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
--
2.5.5
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