drm/amdgpu: correctly sign extend 48bit addresses v3

[linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_gmc.h

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
index bb5a47a45790726272ab4d30077498b8c6edfa3d..d84ef1634eb211754ccae6c26a455f7fbcca1b4d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
@@ -30,6 +30,19 @@
 
 #include "amdgpu_irq.h"
 
+/* VA hole for 48bit addresses on Vega10 */
+#define AMDGPU_GMC_HOLE_START  0x0000800000000000ULL
+#define AMDGPU_GMC_HOLE_END    0xffff800000000000ULL
+
+/*
+ * Hardware is programmed as if the hole doesn't exists with start and end
+ * address values.
+ *
+ * This mask is used to remove the upper 16bits of the VA and so come up with
+ * the linear addr value.
+ */
+#define AMDGPU_GMC_HOLE_MASK   0x0000ffffffffffffULL
+
 struct firmware;
 
 /*
@@ -111,6 +124,13 @@ struct amdgpu_gmc {
        const struct amdgpu_gmc_funcs   *gmc_funcs;
 };
 
+#define amdgpu_gmc_flush_gpu_tlb(adev, vmid) (adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid))
+#define amdgpu_gmc_emit_flush_gpu_tlb(r, vmid, addr) (r)->adev->gmc.gmc_funcs->emit_flush_gpu_tlb((r), (vmid), (addr))
+#define amdgpu_gmc_emit_pasid_mapping(r, vmid, pasid) (r)->adev->gmc.gmc_funcs->emit_pasid_mapping((r), (vmid), (pasid))
+#define amdgpu_gmc_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gmc.gmc_funcs->set_pte_pde((adev), (pt), (idx), (addr), (flags))
+#define amdgpu_gmc_get_vm_pde(adev, level, dst, flags) (adev)->gmc.gmc_funcs->get_vm_pde((adev), (level), (dst), (flags))
+#define amdgpu_gmc_get_pte_flags(adev, flags) (adev)->gmc.gmc_funcs->get_vm_pte_flags((adev),(flags))
+
 /**
  * amdgpu_gmc_vram_full_visible - Check if full VRAM is visible through the BAR
  *
@@ -126,4 +146,25 @@ static inline bool amdgpu_gmc_vram_full_visible(struct amdgpu_gmc *gmc)
        return (gmc->real_vram_size == gmc->visible_vram_size);
 }
 
+/**
+ * amdgpu_gmc_sign_extend - sign extend the given gmc address
+ *
+ * @addr: address to extend
+ */
+static inline uint64_t amdgpu_gmc_sign_extend(uint64_t addr)
+{
+       if (addr >= AMDGPU_GMC_HOLE_START)
+               addr |= AMDGPU_GMC_HOLE_END;
+
+       return addr;
+}
+
+void amdgpu_gmc_get_pde_for_bo(struct amdgpu_bo *bo, int level,
+                              uint64_t *addr, uint64_t *flags);
+uint64_t amdgpu_gmc_pd_addr(struct amdgpu_bo *bo);
+void amdgpu_gmc_vram_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc,
+                             u64 base);
+void amdgpu_gmc_gart_location(struct amdgpu_device *adev,
+                             struct amdgpu_gmc *mc);
+
 #endif