/*
* Authors: Dave Airlie <airlied@redhat.com>
*/
-#include <drm/drmP.h>
-#include <drm/ttm/ttm_page_alloc.h>
-#include "mgag200_drv.h"
-
-static inline struct mga_device *
-mgag200_bdev(struct ttm_bo_device *bd)
-{
- return container_of(bd, struct mga_device, ttm.bdev);
-}
-
-static void mgag200_bo_ttm_destroy(struct ttm_buffer_object *tbo)
-{
- struct mgag200_bo *bo;
-
- bo = container_of(tbo, struct mgag200_bo, bo);
-
- drm_gem_object_release(&bo->gem);
- kfree(bo);
-}
-
-static bool mgag200_ttm_bo_is_mgag200_bo(struct ttm_buffer_object *bo)
-{
- if (bo->destroy == &mgag200_bo_ttm_destroy)
- return true;
- return false;
-}
-
-static int
-mgag200_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
- struct ttm_mem_type_manager *man)
-{
- switch (type) {
- case TTM_PL_SYSTEM:
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_MASK_CACHING;
- man->default_caching = TTM_PL_FLAG_CACHED;
- break;
- case TTM_PL_VRAM:
- man->func = &ttm_bo_manager_func;
- man->flags = TTM_MEMTYPE_FLAG_FIXED |
- TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- break;
- default:
- DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
- return -EINVAL;
- }
- return 0;
-}
-
-static void
-mgag200_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
-{
- struct mgag200_bo *mgabo = mgag200_bo(bo);
-
- if (!mgag200_ttm_bo_is_mgag200_bo(bo))
- return;
-
- mgag200_ttm_placement(mgabo, TTM_PL_FLAG_SYSTEM);
- *pl = mgabo->placement;
-}
-
-static int mgag200_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
-{
- struct mgag200_bo *mgabo = mgag200_bo(bo);
-
- return drm_vma_node_verify_access(&mgabo->gem.vma_node,
- filp->private_data);
-}
-
-static int mgag200_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
- struct ttm_mem_reg *mem)
-{
- struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
- struct mga_device *mdev = mgag200_bdev(bdev);
-
- mem->bus.addr = NULL;
- mem->bus.offset = 0;
- mem->bus.size = mem->num_pages << PAGE_SHIFT;
- mem->bus.base = 0;
- mem->bus.is_iomem = false;
- if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
- return -EINVAL;
- switch (mem->mem_type) {
- case TTM_PL_SYSTEM:
- /* system memory */
- return 0;
- case TTM_PL_VRAM:
- mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = pci_resource_start(mdev->dev->pdev, 0);
- mem->bus.is_iomem = true;
- break;
- default:
- return -EINVAL;
- break;
- }
- return 0;
-}
-
-static void mgag200_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
-{
-}
-
-static void mgag200_ttm_backend_destroy(struct ttm_tt *tt)
-{
- ttm_tt_fini(tt);
- kfree(tt);
-}
+#include <drm/drm_pci.h>
-static struct ttm_backend_func mgag200_tt_backend_func = {
- .destroy = &mgag200_ttm_backend_destroy,
-};
-
-
-static struct ttm_tt *mgag200_ttm_tt_create(struct ttm_buffer_object *bo,
- uint32_t page_flags)
-{
- struct ttm_tt *tt;
-
- tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
- if (tt == NULL)
- return NULL;
- tt->func = &mgag200_tt_backend_func;
- if (ttm_tt_init(tt, bo, page_flags)) {
- kfree(tt);
- return NULL;
- }
- return tt;
-}
-
-struct ttm_bo_driver mgag200_bo_driver = {
- .ttm_tt_create = mgag200_ttm_tt_create,
- .init_mem_type = mgag200_bo_init_mem_type,
- .eviction_valuable = ttm_bo_eviction_valuable,
- .evict_flags = mgag200_bo_evict_flags,
- .move = NULL,
- .verify_access = mgag200_bo_verify_access,
- .io_mem_reserve = &mgag200_ttm_io_mem_reserve,
- .io_mem_free = &mgag200_ttm_io_mem_free,
-};
+#include "mgag200_drv.h"
int mgag200_mm_init(struct mga_device *mdev)
{
+ struct drm_vram_mm *vmm;
int ret;
struct drm_device *dev = mdev->dev;
- struct ttm_bo_device *bdev = &mdev->ttm.bdev;
-
- ret = ttm_bo_device_init(&mdev->ttm.bdev,
- &mgag200_bo_driver,
- dev->anon_inode->i_mapping,
- true);
- if (ret) {
- DRM_ERROR("Error initialising bo driver; %d\n", ret);
- return ret;
- }
- ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, mdev->mc.vram_size >> PAGE_SHIFT);
- if (ret) {
- DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+ vmm = drm_vram_helper_alloc_mm(dev, pci_resource_start(dev->pdev, 0),
+ mdev->mc.vram_size,
+ &drm_gem_vram_mm_funcs);
+ if (IS_ERR(vmm)) {
+ ret = PTR_ERR(vmm);
+ DRM_ERROR("Error initializing VRAM MM; %d\n", ret);
return ret;
}
{
struct drm_device *dev = mdev->dev;
- ttm_bo_device_release(&mdev->ttm.bdev);
+ drm_vram_helper_release_mm(dev);
arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
pci_resource_len(dev->pdev, 0));
arch_phys_wc_del(mdev->fb_mtrr);
mdev->fb_mtrr = 0;
}
-
-void mgag200_ttm_placement(struct mgag200_bo *bo, int domain)
-{
- u32 c = 0;
- unsigned i;
-
- bo->placement.placement = bo->placements;
- bo->placement.busy_placement = bo->placements;
- if (domain & TTM_PL_FLAG_VRAM)
- bo->placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
- if (domain & TTM_PL_FLAG_SYSTEM)
- bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
- if (!c)
- bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
- bo->placement.num_placement = c;
- bo->placement.num_busy_placement = c;
- for (i = 0; i < c; ++i) {
- bo->placements[i].fpfn = 0;
- bo->placements[i].lpfn = 0;
- }
-}
-
-int mgag200_bo_create(struct drm_device *dev, int size, int align,
- uint32_t flags, struct mgag200_bo **pmgabo)
-{
- struct mga_device *mdev = dev->dev_private;
- struct mgag200_bo *mgabo;
- size_t acc_size;
- int ret;
-
- mgabo = kzalloc(sizeof(struct mgag200_bo), GFP_KERNEL);
- if (!mgabo)
- return -ENOMEM;
-
- ret = drm_gem_object_init(dev, &mgabo->gem, size);
- if (ret) {
- kfree(mgabo);
- return ret;
- }
-
- mgabo->bo.bdev = &mdev->ttm.bdev;
-
- mgag200_ttm_placement(mgabo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
-
- acc_size = ttm_bo_dma_acc_size(&mdev->ttm.bdev, size,
- sizeof(struct mgag200_bo));
-
- ret = ttm_bo_init(&mdev->ttm.bdev, &mgabo->bo, size,
- ttm_bo_type_device, &mgabo->placement,
- align >> PAGE_SHIFT, false, acc_size,
- NULL, NULL, mgag200_bo_ttm_destroy);
- if (ret)
- return ret;
-
- *pmgabo = mgabo;
- return 0;
-}
-
-static inline u64 mgag200_bo_gpu_offset(struct mgag200_bo *bo)
-{
- return bo->bo.offset;
-}
-
-int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (bo->pin_count) {
- bo->pin_count++;
- if (gpu_addr)
- *gpu_addr = mgag200_bo_gpu_offset(bo);
- return 0;
- }
-
- mgag200_ttm_placement(bo, pl_flag);
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret)
- return ret;
-
- bo->pin_count = 1;
- if (gpu_addr)
- *gpu_addr = mgag200_bo_gpu_offset(bo);
- return 0;
-}
-
-int mgag200_bo_unpin(struct mgag200_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i;
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- for (i = 0; i < bo->placement.num_placement ; i++)
- bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
- return ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
-}
-
-int mgag200_bo_push_sysram(struct mgag200_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- if (bo->kmap.virtual)
- ttm_bo_kunmap(&bo->kmap);
-
- mgag200_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
- for (i = 0; i < bo->placement.num_placement ; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
-
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret) {
- DRM_ERROR("pushing to VRAM failed\n");
- return ret;
- }
- return 0;
-}
-
-int mgag200_mmap(struct file *filp, struct vm_area_struct *vma)
-{
- struct drm_file *file_priv = filp->private_data;
- struct mga_device *mdev = file_priv->minor->dev->dev_private;
-
- return ttm_bo_mmap(filp, vma, &mdev->ttm.bdev);
-}
git.samba.org / sfrench / cifs-2.6.git / blobdiff