[PATCH 3/5] drm/amdgpu: drop the extra VM huge page flag

[Christian König]

From: Christian König <christian.koenig at amd.com>

Just add the flags to the addr field as well.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 15 ++++++---------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h |  1 -
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index d982ba7..de652bf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -330,7 +330,6 @@ static int amdgpu_vm_alloc_levels(struct amdgpu_device *adev,
 
 			entry->bo = pt;
 			entry->addr = 0;
-			entry->huge_page = false;
 		}
 
 		if (level < adev->vm_manager.num_level) {
@@ -1082,11 +1081,11 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev,
 
 		pt = amdgpu_bo_gpu_offset(bo);
 		pt = amdgpu_gart_get_vm_pde(adev, pt);
-		if (parent->entries[pt_idx].addr == pt ||
-		    parent->entries[pt_idx].huge_page)
+		if ((parent->entries[pt_idx].addr & AMDGPU_PDE_PTE) ||
+		    parent->entries[pt_idx].addr == (pt | AMDGPU_PTE_VALID))
 			continue;
 
-		parent->entries[pt_idx].addr = pt;
+		parent->entries[pt_idx].addr = pt | AMDGPU_PTE_VALID;
 
 		pde = pd_addr + pt_idx * 8;
 		if (((last_pde + 8 * count) != pde) ||
@@ -1286,12 +1285,10 @@ static void amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p,
 		flags |= AMDGPU_PDE_PTE;
 	}
 
-	if (entry->addr == dst &&
-	    entry->huge_page == !!(flags & AMDGPU_PDE_PTE))
+	if (entry->addr == (dst | flags))
 		return;
 
-	entry->addr = dst;
-	entry->huge_page = !!(flags & AMDGPU_PDE_PTE);
+	entry->addr = (dst | flags);
 
 	if (use_cpu_update) {
 		pd_addr = (unsigned long)amdgpu_bo_kptr(parent->bo);
@@ -1350,7 +1347,7 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params,
 
 		amdgpu_vm_handle_huge_pages(params, entry, parent,
 					    nptes, dst, flags);
-		if (entry->huge_page)
+		if (entry->addr & AMDGPU_PDE_PTE)
 			continue;
 
 		pt = entry->bo;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 9c309c5..f12c12f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -103,7 +103,6 @@ struct amdgpu_bo_list_entry;
 struct amdgpu_vm_pt {
 	struct amdgpu_bo	*bo;
 	uint64_t		addr;
-	bool			huge_page;
 
 	/* array of page tables, one for each directory entry */
 	struct amdgpu_vm_pt	*entries;
-- 
2.7.4