From 914b4dce4fda09baa059414be01ae9484dc78120 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Wed, 28 Sep 2016 12:27:37 +0200 Subject: [PATCH] drm/amdgpu: stop using a bo list entry for the VM PTs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Saves us a bit of memory. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 +-- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 34 +++++++++++--------------- 2 files changed, 16 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 848e4ed7e32a..9d9831f2e2d0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -820,8 +820,8 @@ struct amdgpu_ring { #define AMDGPU_VM_FAULT_STOP_ALWAYS 2 struct amdgpu_vm_pt { - struct amdgpu_bo_list_entry entry; - uint64_t addr; + struct amdgpu_bo *bo; + uint64_t addr; }; struct amdgpu_vm { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index c171b16cf0f1..b8620d3dd61e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -142,12 +142,12 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm, /* add the vm page table to the list */ for (i = 0; i <= vm->max_pde_used; ++i) { - struct amdgpu_bo_list_entry *entry = &vm->page_tables[i].entry; + struct amdgpu_bo *bo = vm->page_tables[i].bo; - if (!entry->robj) + if (!bo) continue; - r = validate(param, entry->robj); + r = validate(param, bo); if (r) return r; } @@ -171,12 +171,12 @@ void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev, spin_lock(&glob->lru_lock); for (i = 0; i <= vm->max_pde_used; ++i) { - struct amdgpu_bo_list_entry *entry = &vm->page_tables[i].entry; + struct amdgpu_bo *bo = vm->page_tables[i].bo; - if (!entry->robj) + if (!bo) continue; - ttm_bo_move_to_lru_tail(&entry->robj->tbo); + ttm_bo_move_to_lru_tail(&bo->tbo); } spin_unlock(&glob->lru_lock); } @@ -674,7 +674,7 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, /* walk over the address space and update the page directory */ for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) { - struct amdgpu_bo *bo = vm->page_tables[pt_idx].entry.robj; + struct amdgpu_bo *bo = vm->page_tables[pt_idx].bo; uint64_t pde, pt; if (bo == NULL) @@ -790,11 +790,11 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, /* initialize the variables */ addr = start; pt_idx = addr >> amdgpu_vm_block_size; - pt = vm->page_tables[pt_idx].entry.robj; + pt = vm->page_tables[pt_idx].bo; if (params->shadow) { if (!pt->shadow) return; - pt = vm->page_tables[pt_idx].entry.robj->shadow; + pt = pt->shadow; } if ((addr & ~mask) == (end & ~mask)) nptes = end - addr; @@ -813,11 +813,11 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, /* walk over the address space and update the page tables */ while (addr < end) { pt_idx = addr >> amdgpu_vm_block_size; - pt = vm->page_tables[pt_idx].entry.robj; + pt = vm->page_tables[pt_idx].bo; if (params->shadow) { if (!pt->shadow) return; - pt = vm->page_tables[pt_idx].entry.robj->shadow; + pt = pt->shadow; } if ((addr & ~mask) == (end & ~mask)) @@ -1425,11 +1425,9 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, /* walk over the address space and allocate the page tables */ for (pt_idx = saddr; pt_idx <= eaddr; ++pt_idx) { struct reservation_object *resv = vm->page_directory->tbo.resv; - struct amdgpu_bo_list_entry *entry; struct amdgpu_bo *pt; - entry = &vm->page_tables[pt_idx].entry; - if (entry->robj) + if (vm->page_tables[pt_idx].bo) continue; r = amdgpu_bo_create(adev, AMDGPU_VM_PTE_COUNT * 8, @@ -1463,11 +1461,7 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, } } - entry->robj = pt; - entry->priority = 0; - entry->tv.bo = &entry->robj->tbo; - entry->tv.shared = true; - entry->user_pages = NULL; + vm->page_tables[pt_idx].bo = pt; vm->page_tables[pt_idx].addr = 0; } @@ -1719,7 +1713,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) } for (i = 0; i < amdgpu_vm_num_pdes(adev); i++) { - struct amdgpu_bo *pt = vm->page_tables[i].entry.robj; + struct amdgpu_bo *pt = vm->page_tables[i].bo; if (!pt) continue; -- 2.39.5