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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 38b6bbcaf186..c190365d67e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -707,6 +707,48 @@ u32 amdgpu_device_indirect_rreg(struct amdgpu_device *adev,
return r;
}
+u32 amdgpu_device_indirect_rreg_ext(struct amdgpu_device *adev,
+ u64 reg_addr)
+{
+ unsigned long flags, pcie_index, pcie_index_hi, pcie_data;
+ u32 r;
+ void __iomem *pcie_index_offset;
+ void __iomem *pcie_index_hi_offset;
+ void __iomem *pcie_data_offset;
+
+ pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
+ pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
+ if (adev->nbio.funcs->get_pcie_index_hi_offset)
+ pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev);
+ else
+ pcie_index_hi = 0;
+
+ spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+ pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
+ pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
+ if (pcie_index_hi != 0)
+ pcie_index_hi_offset = (void __iomem *)adev->rmmio +
+ pcie_index_hi * 4;
+
+ writel(reg_addr, pcie_index_offset);
+ readl(pcie_index_offset);
+ if (pcie_index_hi != 0) {
+ writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
+ readl(pcie_index_hi_offset);
+ }
+ r = readl(pcie_data_offset);
+
+ /* clear the high bits */
+ if (pcie_index_hi != 0) {
+ writel(0, pcie_index_hi_offset);
+ readl(pcie_index_hi_offset);
+ }
+
+ spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+
+ return r;
+}
+
/**
* amdgpu_device_indirect_rreg64 - read a 64bits indirect register
*
@@ -774,6 +816,46 @@ void amdgpu_device_indirect_wreg(struct amdgpu_device *adev,
spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
}
+void amdgpu_device_indirect_wreg_ext(struct amdgpu_device *adev,
+ u64 reg_addr, u32 reg_data)
+{
+ unsigned long flags, pcie_index, pcie_index_hi, pcie_data;
+ void __iomem *pcie_index_offset;
+ void __iomem *pcie_index_hi_offset;
+ void __iomem *pcie_data_offset;
+
+ pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
+ pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
+ if (adev->nbio.funcs->get_pcie_index_hi_offset)
+ pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev);
+ else
+ pcie_index_hi = 0;
+
+ spin_lock_irqsave(&adev->pcie_idx_lock, flags);
+ pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
+ pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
+ if (pcie_index_hi != 0)
+ pcie_index_hi_offset = (void __iomem *)adev->rmmio +
+ pcie_index_hi * 4;
+
+ writel(reg_addr, pcie_index_offset);
+ readl(pcie_index_offset);
+ if (pcie_index_hi != 0) {
+ writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
+ readl(pcie_index_hi_offset);
+ }
+ writel(reg_data, pcie_data_offset);
+ readl(pcie_data_offset);
+
+ /* clear the high bits */
+ if (pcie_index_hi != 0) {
+ writel(0, pcie_index_hi_offset);
+ readl(pcie_index_hi_offset);
+ }
+
+ spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
+}
+
/**
* amdgpu_device_indirect_wreg64 - write a 64bits indirect register address
*
@@ -840,6 +922,13 @@ static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg)
return 0;
}
+static uint32_t amdgpu_invalid_rreg_ext(struct amdgpu_device *adev, uint64_t reg)
+{
+ DRM_ERROR("Invalid callback to read register 0x%llX\n", reg);
+ BUG();
+ return 0;
+}
+
/**
* amdgpu_invalid_wreg - dummy reg write function
*
@@ -857,6 +946,13 @@ static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32
BUG();
}
+static void amdgpu_invalid_wreg_ext(struct amdgpu_device *adev, uint64_t reg, uint32_t v)
+{
+ DRM_ERROR("Invalid callback to write register 0x%llX with 0x%08X\n",
+ reg, v);
+ BUG();
+}
+
/**
* amdgpu_invalid_rreg64 - dummy 64 bit reg read function
*
@@ -3611,6 +3707,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
adev->smc_wreg = &amdgpu_invalid_wreg;
adev->pcie_rreg = &amdgpu_invalid_rreg;
adev->pcie_wreg = &amdgpu_invalid_wreg;
+ adev->pcie_rreg_ext = &amdgpu_invalid_rreg_ext;
+ adev->pcie_wreg_ext = &amdgpu_invalid_wreg_ext;
adev->pciep_rreg = &amdgpu_invalid_rreg;
adev->pciep_wreg = &amdgpu_invalid_wreg;
adev->pcie_rreg64 = &amdgpu_invalid_rreg64;