[PATCH] drm/amdgpu: fix gfx9 rlc modprobe rlcg program timeout issue

[Changfeng]

From: changzhu <Changfeng.Zhu at amd.com>

From: Changfeng <Changfeng.Zhu at amd.com>

It needs to add amdgpu_sriov_fullaccess judgement as gfx_v10_rlcg_wreg
when doing gfx_v9_0_rlcg_wreg.
Or it will cause modprobe issue as below:
kernel: [   59.992843] amdgpu: timeout: rlcg program reg:0x02984 failed!

Fix for patch:
drm/amdgpu: indirect register access for nv12 sriov

Change-Id: I971804e4e8dbd83e4179beefa8ae8a06bd52913b
Signed-off-by: Changfeng <Changfeng.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 2111e4c46a52..06811a1f4625 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -734,7 +734,7 @@ static const u32 GFX_RLC_SRM_INDEX_CNTL_DATA_OFFSETS[] =
 	mmRLC_SRM_INDEX_CNTL_DATA_7 - mmRLC_SRM_INDEX_CNTL_DATA_0,
 };
 
-void gfx_v9_0_rlcg_wreg(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag)
+static void gfx_v9_0_rlcg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag)
 {
 	static void *scratch_reg0;
 	static void *scratch_reg1;
@@ -787,6 +787,20 @@ void gfx_v9_0_rlcg_wreg(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag)
 
 }
 
+static void gfx_v9_0_rlcg_wreg(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag)
+{
+	if (amdgpu_sriov_fullaccess(adev)) {
+		gfx_v9_0_rlcg_rw(adev, offset, v, flag);
+
+		return;
+	}
+
+	if (flag & AMDGPU_REGS_NO_KIQ)
+		WREG32_NO_KIQ(offset, v);
+	else
+		WREG32(offset, v);
+}
+
 #define VEGA10_GB_ADDR_CONFIG_GOLDEN 0x2a114042
 #define VEGA12_GB_ADDR_CONFIG_GOLDEN 0x24104041
 #define RAVEN_GB_ADDR_CONFIG_GOLDEN 0x24000042
-- 
2.17.1