From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 30 Nov 2017 15:41:28 +0100
Subject: drm/amdgpu: remove keeping the addr of the VM PDs
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Git-commit: 78eb2f0c719e6427eb5ac36cebe18df0578421d2
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

No more double house keeping.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-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_vm.c |   13 ++++---------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h |    2 +-
 2 files changed, 5 insertions(+), 10 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -383,7 +383,6 @@ static int amdgpu_vm_alloc_levels(struct
 			spin_lock(&vm->status_lock);
 			list_add(&entry->base.vm_status, &vm->relocated);
 			spin_unlock(&vm->status_lock);
-			entry->addr = 0;
 		}
 
 		if (level < adev->vm_manager.num_level) {
@@ -1125,15 +1124,12 @@ static int amdgpu_vm_update_pde(struct a
 	pt = amdgpu_bo_gpu_offset(bo);
 	pt = amdgpu_gart_get_vm_pde(adev, pt);
 	/* Don't update huge pages here */
-	if (entry->addr & AMDGPU_PDE_PTE ||
-	    entry->addr == (pt | AMDGPU_PTE_VALID)) {
+	if (entry->huge) {
 		if (!vm->use_cpu_for_update)
 			amdgpu_job_free(job);
 		return 0;
 	}
 
-	entry->addr = pt | AMDGPU_PTE_VALID;
-
 	if (shadow) {
 		pde = shadow_addr + (entry - parent->entries) * 8;
 		params.func(&params, pde, pt, 1, 0, AMDGPU_PTE_VALID);
@@ -1199,7 +1195,6 @@ static void amdgpu_vm_invalidate_level(s
 		if (!entry->base.bo)
 			continue;
 
-		entry->addr = ~0ULL;
 		spin_lock(&vm->status_lock);
 		if (list_empty(&entry->base.vm_status))
 			list_add(&entry->base.vm_status, &vm->relocated);
@@ -1332,10 +1327,10 @@ static void amdgpu_vm_handle_huge_pages(
 		flags |= AMDGPU_PDE_PTE;
 	}
 
-	if (entry->addr == (dst | flags))
+	if (!entry->huge && !(flags & AMDGPU_PDE_PTE))
 		return;
 
-	entry->addr = (dst | flags);
+	entry->huge = !!(flags & AMDGPU_PDE_PTE);
 
 	if (use_cpu_update) {
 		/* In case a huge page is replaced with a system
@@ -1409,7 +1404,7 @@ static int amdgpu_vm_update_ptes(struct
 		amdgpu_vm_handle_huge_pages(params, entry, parent,
 					    nptes, dst, flags);
 		/* We don't need to update PTEs for huge pages */
-		if (entry->addr & AMDGPU_PDE_PTE)
+		if (entry->huge)
 			continue;
 
 		pt = entry->base.bo;
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -138,7 +138,7 @@ struct amdgpu_vm_bo_base {
 
 struct amdgpu_vm_pt {
 	struct amdgpu_vm_bo_base	base;
-	uint64_t			addr;
+	bool				huge;
 
 	/* array of page tables, one for each directory entry */
 	struct amdgpu_vm_pt		*entries;