diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/drm_bo.c | 89 |
1 files changed, 78 insertions, 11 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 64abb118..f4147be2 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -129,7 +129,7 @@ static int drm_bo_add_ttm(drm_buffer_object_t * bo) switch (bo->type) { case drm_bo_type_dc: - bo->ttm = drm_ttm_init(dev, bo->mem.num_pages << PAGE_SHIFT); + bo->ttm = drm_ttm_init(dev, bo->mem.num_pages << PAGE_SHIFT); if (!bo->ttm) ret = -ENOMEM; break; @@ -173,10 +173,10 @@ static int drm_bo_handle_move_mem(drm_buffer_object_t *bo, return ret; if (!(old_man->flags & _DRM_FLAG_MEMTYPE_FIXED) && - !(new_man->flags & _DRM_FLAG_MEMTYPE_FIXED)) { + !(new_man->flags & _DRM_FLAG_MEMTYPE_FIXED)) { ret = drm_bo_move_ttm(dev, bo->ttm, evict, no_wait, &bo->mem, mem); - } else if (dev->driver->bo_driver->move) { + } else if (dev->driver->bo_driver->move) { ret = dev->driver->bo_driver->move(dev, bo->ttm, evict, no_wait, &bo->mem, mem); } else { @@ -345,6 +345,7 @@ static void drm_bo_destroy_locked(drm_buffer_object_t *bo) drm_destroy_ttm(bo->ttm); bo->ttm = NULL; } + atomic_dec(&bm->count); drm_ctl_free(bo, sizeof(*bo), DRM_MEM_BUFOBJ); @@ -571,6 +572,7 @@ static int drm_bo_evict(drm_buffer_object_t * bo, unsigned mem_type, if (bo->priv_flags & _DRM_BO_FLAG_UNFENCED) goto out; if (bo->mem.mem_type != mem_type) + goto out; ret = drm_bo_wait(bo, 0, 0, no_wait); @@ -580,6 +582,9 @@ static int drm_bo_evict(drm_buffer_object_t * bo, unsigned mem_type, goto out; } + if (bo->type != drm_bo_type_dc) + goto out1; + evict_mem = bo->mem; evict_mem.mask = dev->driver->bo_driver->evict_flags(dev, mem_type); ret = drm_bo_mem_space(dev, &evict_mem, no_wait); @@ -599,6 +604,7 @@ static int drm_bo_evict(drm_buffer_object_t * bo, unsigned mem_type, goto out; } +out1: mutex_lock(&dev->struct_mutex); if (evict_mem.mm_node) { drm_mm_put_block(evict_mem.mm_node); @@ -674,6 +680,7 @@ static int drm_bo_mt_compatible(drm_mem_type_manager_t *man, uint32_t *res_mask) { uint32_t cur_flags = drm_bo_type_flags(mem_type); + uint32_t flag_diff; if (man->flags & _DRM_FLAG_MEMTYPE_CACHED) cur_flags |= DRM_BO_FLAG_CACHED; @@ -682,13 +689,21 @@ static int drm_bo_mt_compatible(drm_mem_type_manager_t *man, if (man->flags & _DRM_FLAG_MEMTYPE_CSELECT) DRM_FLAG_MASKED(cur_flags, mask, DRM_BO_FLAG_CACHED); - if (!(mask & DRM_BO_FLAG_FORCE_CACHING)) - DRM_FLAG_MASKED(mask, cur_flags, DRM_BO_FLAG_CACHED); - if (!(mask & DRM_BO_FLAG_FORCE_MAPPABLE)) - DRM_FLAG_MASKED(mask, cur_flags, DRM_BO_FLAG_MAPPABLE); - - *res_mask = mask; - return ((cur_flags & mask & DRM_BO_MASK_MEMTYPE) == cur_flags); + if ((cur_flags & mask & DRM_BO_MASK_MEM) == 0) { + return 0; + } + flag_diff = (mask ^ cur_flags); + if ((flag_diff & DRM_BO_FLAG_CACHED) && + (mask & DRM_BO_FLAG_FORCE_CACHING)) { + return 0; + } + if ((flag_diff & DRM_BO_FLAG_MAPPABLE) && + (mask & DRM_BO_FLAG_FORCE_MAPPABLE)) { + return 0; + } + + *res_mask = cur_flags; + return 1; } @@ -778,6 +793,16 @@ static int drm_bo_new_mask(drm_buffer_object_t *bo, { uint32_t new_props; + if (bo->type == drm_bo_type_user) { + DRM_ERROR("User buffers are not supported yet\n"); + return -EINVAL; + } + if (bo->type == drm_bo_type_fake && + !(new_mask & (DRM_BO_FLAG_NO_MOVE | DRM_BO_FLAG_NO_EVICT))) { + DRM_ERROR("Fake buffers must be pinned.\n"); + return -EINVAL; + } + if ((new_mask & DRM_BO_FLAG_NO_EVICT) && !DRM_SUSER(DRM_CURPROC)) { DRM_ERROR ("DRM_BO_FLAG_NO_EVICT is only available to priviliged " @@ -785,7 +810,6 @@ static int drm_bo_new_mask(drm_buffer_object_t *bo, return -EPERM; } - new_props = new_mask & (DRM_BO_FLAG_EXE | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_READ); @@ -1220,6 +1244,43 @@ static int drm_bo_mem_compat(drm_bo_mem_reg_t *mem) return 1; } +static int drm_bo_check_fake(drm_device_t *dev, drm_bo_mem_reg_t *mem) +{ + drm_buffer_manager_t *bm = &dev->bm; + drm_mem_type_manager_t *man; + uint32_t num_prios = dev->driver->bo_driver->num_mem_type_prio; + const uint32_t *prios = dev->driver->bo_driver->mem_type_prio; + uint32_t i; + int type_ok = 0; + uint32_t mem_type = 0; + uint32_t cur_flags; + + if (drm_bo_mem_compat(mem)) + return 0; + + BUG_ON(mem->mm_node); + + for (i=0; i<num_prios; ++i) { + mem_type = prios[i]; + man = &bm->man[mem_type]; + type_ok = drm_bo_mt_compatible(man, mem_type, mem->mask, + &cur_flags); + if (type_ok) + break; + } + + if (type_ok) { + mem->mm_node = NULL; + mem->mem_type = mem_type; + mem->flags = cur_flags; + DRM_FLAG_MASKED(mem->flags, mem->mask, ~DRM_BO_MASK_MEMTYPE); + return 0; + } + + DRM_ERROR("Illegal fake buffer flags 0x%08x\n", mem->mask); + return -EINVAL; +} + /* * bo locked. */ @@ -1242,6 +1303,12 @@ static int drm_buffer_object_validate(drm_buffer_object_t * bo, return ret; } + if (bo->type == drm_bo_type_fake) { + ret = drm_bo_check_fake(dev, &bo->mem); + if (ret) + return ret; + } + /* * Check whether we dropped no_move policy, and in that case, * release reserved manager regions, if we're evicted. |