[PATCH 1/2] drm/amdgpu/vi: expose CB chicken bit registers via read reg interface

[Alex Deucher]

Useful for validating certain tests involving the CB where the
chicken bit status may have an affect on the results.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/vi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index f2e8aa1..af276f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -543,6 +543,10 @@ static const struct amdgpu_allowed_register_entry vi_allowed_read_registers[] =
 	{mmGB_MACROTILE_MODE13, false},
 	{mmGB_MACROTILE_MODE14, false},
 	{mmGB_MACROTILE_MODE15, false},
+	{mmCB_HW_CONTROL, false},
+	{mmCB_HW_CONTROL_1, false},
+	{mmCB_HW_CONTROL_2, false},
+	{mmCB_HW_CONTROL_3, false},
 	{mmCC_RB_BACKEND_DISABLE, false, true},
 	{mmGC_USER_RB_BACKEND_DISABLE, false, true},
 	{mmGB_BACKEND_MAP, false, false},
-- 
2.5.5