diff options
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 116 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_vm.c | 10 |
2 files changed, 86 insertions, 40 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 17478f38dea3..e44626a2e698 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -982,7 +982,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo, } if (!type_found) { - printk(KERN_ERR TTM_PFX "No compatible memory type found.\n"); + pr_err(TTM_PFX "No compatible memory type found\n"); return -EINVAL; } @@ -1020,37 +1020,44 @@ out_unlock: return ret; } -bool ttm_bo_mem_compat(struct ttm_placement *placement, - struct ttm_mem_reg *mem, - uint32_t *new_flags) +static bool ttm_bo_places_compat(const struct ttm_place *places, + unsigned num_placement, + struct ttm_mem_reg *mem, + uint32_t *new_flags) { - int i; + unsigned i; - for (i = 0; i < placement->num_placement; i++) { - const struct ttm_place *heap = &placement->placement[i]; - if (mem->mm_node && - (mem->start < heap->fpfn || + for (i = 0; i < num_placement; i++) { + const struct ttm_place *heap = &places[i]; + + if (mem->mm_node && (mem->start < heap->fpfn || (heap->lpfn != 0 && (mem->start + mem->num_pages) > heap->lpfn))) continue; *new_flags = heap->flags; if ((*new_flags & mem->placement & TTM_PL_MASK_CACHING) && - (*new_flags & mem->placement & TTM_PL_MASK_MEM)) + (*new_flags & mem->placement & TTM_PL_MASK_MEM) && + (!(*new_flags & TTM_PL_FLAG_CONTIGUOUS) || + (mem->placement & TTM_PL_FLAG_CONTIGUOUS))) return true; } + return false; +} - for (i = 0; i < placement->num_busy_placement; i++) { - const struct ttm_place *heap = &placement->busy_placement[i]; - if (mem->mm_node && - (mem->start < heap->fpfn || - (heap->lpfn != 0 && (mem->start + mem->num_pages) > heap->lpfn))) - continue; +bool ttm_bo_mem_compat(struct ttm_placement *placement, + struct ttm_mem_reg *mem, + uint32_t *new_flags) +{ + if (ttm_bo_places_compat(placement->placement, placement->num_placement, + mem, new_flags)) + return true; - *new_flags = heap->flags; - if ((*new_flags & mem->placement & TTM_PL_MASK_CACHING) && - (*new_flags & mem->placement & TTM_PL_MASK_MEM)) - return true; - } + if ((placement->busy_placement != placement->placement || + placement->num_busy_placement > placement->num_placement) && + ttm_bo_places_compat(placement->busy_placement, + placement->num_busy_placement, + mem, new_flags)) + return true; return false; } @@ -1093,18 +1100,18 @@ int ttm_bo_validate(struct ttm_buffer_object *bo, } EXPORT_SYMBOL(ttm_bo_validate); -int ttm_bo_init(struct ttm_bo_device *bdev, - struct ttm_buffer_object *bo, - unsigned long size, - enum ttm_bo_type type, - struct ttm_placement *placement, - uint32_t page_alignment, - bool interruptible, - struct file *persistent_swap_storage, - size_t acc_size, - struct sg_table *sg, - struct reservation_object *resv, - void (*destroy) (struct ttm_buffer_object *)) +int ttm_bo_init_reserved(struct ttm_bo_device *bdev, + struct ttm_buffer_object *bo, + unsigned long size, + enum ttm_bo_type type, + struct ttm_placement *placement, + uint32_t page_alignment, + bool interruptible, + struct file *persistent_swap_storage, + size_t acc_size, + struct sg_table *sg, + struct reservation_object *resv, + void (*destroy) (struct ttm_buffer_object *)) { int ret = 0; unsigned long num_pages; @@ -1188,20 +1195,51 @@ int ttm_bo_init(struct ttm_bo_device *bdev, if (likely(!ret)) ret = ttm_bo_validate(bo, placement, interruptible, false); - if (!resv) { - ttm_bo_unreserve(bo); + if (unlikely(ret)) { + if (!resv) + ttm_bo_unreserve(bo); + + ttm_bo_unref(&bo); + return ret; + } - } else if (!(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) { + if (resv && !(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) { spin_lock(&bo->glob->lru_lock); ttm_bo_add_to_lru(bo); spin_unlock(&bo->glob->lru_lock); } - if (unlikely(ret)) - ttm_bo_unref(&bo); - return ret; } +EXPORT_SYMBOL(ttm_bo_init_reserved); + +int ttm_bo_init(struct ttm_bo_device *bdev, + struct ttm_buffer_object *bo, + unsigned long size, + enum ttm_bo_type type, + struct ttm_placement *placement, + uint32_t page_alignment, + bool interruptible, + struct file *persistent_swap_storage, + size_t acc_size, + struct sg_table *sg, + struct reservation_object *resv, + void (*destroy) (struct ttm_buffer_object *)) +{ + int ret; + + ret = ttm_bo_init_reserved(bdev, bo, size, type, placement, + page_alignment, interruptible, + persistent_swap_storage, acc_size, + sg, resv, destroy); + if (ret) + return ret; + + if (!resv) + ttm_bo_unreserve(bo); + + return 0; +} EXPORT_SYMBOL(ttm_bo_init); size_t ttm_bo_acc_size(struct ttm_bo_device *bdev, diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 35ffb3754feb..9f53df95f35c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -231,7 +231,7 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf) */ for (i = 0; i < TTM_BO_VM_NUM_PREFAULT; ++i) { if (bo->mem.bus.is_iomem) - pfn = ((bo->mem.bus.base + bo->mem.bus.offset) >> PAGE_SHIFT) + page_offset; + pfn = bdev->driver->io_mem_pfn(bo, page_offset); else { page = ttm->pages[page_offset]; if (unlikely(!page && i == 0)) { @@ -324,6 +324,14 @@ static struct ttm_buffer_object *ttm_bo_vm_lookup(struct ttm_bo_device *bdev, return bo; } +unsigned long ttm_bo_default_io_mem_pfn(struct ttm_buffer_object *bo, + unsigned long page_offset) +{ + return ((bo->mem.bus.base + bo->mem.bus.offset) >> PAGE_SHIFT) + + page_offset; +} +EXPORT_SYMBOL(ttm_bo_default_io_mem_pfn); + int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, struct ttm_bo_device *bdev) { |