Change-Id: I1a62db8c764d368e6ba08440ad1761adb55d85fd
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
drivers/gpu/drm/amd/amdgpu/soc15.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index f5669af..c0a5250 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -196,6 +196,28 @@ static void soc15_didt_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
spin_unlock_irqrestore(&adev->didt_idx_lock, flags);
}
+static u32 soc15_gc_cac_rreg(struct amdgpu_device *adev, u32 reg)
+{
+ unsigned long flags;
+ u32 r;
+
+ spin_lock_irqsave(&adev->gc_cac_idx_lock, flags);
+ WREG32_SOC15(GC, 0, mmGC_CAC_IND_INDEX, (reg));
+ r = RREG32_SOC15(GC, 0, mmGC_CAC_IND_DATA);
+ spin_unlock_irqrestore(&adev->gc_cac_idx_lock, flags);
+ return r;
+}
+
+static void soc15_gc_cac_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&adev->gc_cac_idx_lock, flags);
+ WREG32_SOC15(GC, 0, mmGC_CAC_IND_INDEX, (reg));
+ WREG32_SOC15(GC, 0, mmGC_CAC_IND_DATA, (v));
+ spin_unlock_irqrestore(&adev->gc_cac_idx_lock, flags);
+}
+
static u32 soc15_get_config_memsize(struct amdgpu_device *adev)
{
if (adev->flags & AMD_IS_APU)
@@ -567,6 +589,8 @@ static int soc15_common_early_init(void *handle)
adev->uvd_ctx_wreg = &soc15_uvd_ctx_wreg;
adev->didt_rreg = &soc15_didt_rreg;
adev->didt_wreg = &soc15_didt_wreg;
+ adev->gc_cac_rreg = &soc15_gc_cac_rreg;
+ adev->gc_cac_wreg = &soc15_gc_cac_wreg;
adev->asic_funcs = &soc15_asic_funcs;
--
2.7.4
