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From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 12 Jan 2018 16:57:33 +0100
Subject: drm/amdgpu: add new amdgpu_gmc_emit_flush_gpu_tlb callback
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Git-commit: 7ef11047c1aedeaf72c8ebe5242dbdcdfbb86fc3
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Add a new GMC function to unify vm flushing.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h     |    1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h |    3 +++
 2 files changed, 4 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1777,6 +1777,7 @@ amdgpu_get_sdma_instance(struct amdgpu_r
 #define amdgpu_asic_flush_hdp(adev) (adev)->asic_funcs->flush_hdp((adev))
 #define amdgpu_asic_invalidate_hdp(adev) (adev)->asic_funcs->invalidate_hdp((adev))
 #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, pasid, addr) (r)->adev->gmc.gmc_funcs->emit_flush_gpu_tlb((r), (vmid), (pasid), (addr))
 #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))
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
@@ -52,6 +52,9 @@ struct amdgpu_gmc_funcs {
 	/* flush the vm tlb via mmio */
 	void (*flush_gpu_tlb)(struct amdgpu_device *adev,
 			      uint32_t vmid);
+	/* flush the vm tlb via ring */
+	uint64_t (*emit_flush_gpu_tlb)(struct amdgpu_ring *ring, unsigned vmid,
+				       unsigned pasid, uint64_t pd_addr);
 	/* write pte/pde updates using the cpu */
 	int (*set_pte_pde)(struct amdgpu_device *adev,
 			   void *cpu_pt_addr, /* cpu addr of page table */