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| /************************************************************************** |
| * |
| * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #include "vmwgfx_drv.h" |
| #include <drm/ttm/ttm_bo_driver.h> |
| #include <drm/ttm/ttm_placement.h> |
| #include <drm/ttm/ttm_page_alloc.h> |
| |
| static uint32_t vram_placement_flags = TTM_PL_FLAG_VRAM | |
| TTM_PL_FLAG_CACHED; |
| |
| static uint32_t vram_ne_placement_flags = TTM_PL_FLAG_VRAM | |
| TTM_PL_FLAG_CACHED | |
| TTM_PL_FLAG_NO_EVICT; |
| |
| static uint32_t sys_placement_flags = TTM_PL_FLAG_SYSTEM | |
| TTM_PL_FLAG_CACHED; |
| |
| static uint32_t gmr_placement_flags = VMW_PL_FLAG_GMR | |
| TTM_PL_FLAG_CACHED; |
| |
| static uint32_t gmr_ne_placement_flags = VMW_PL_FLAG_GMR | |
| TTM_PL_FLAG_CACHED | |
| TTM_PL_FLAG_NO_EVICT; |
| |
| struct ttm_placement vmw_vram_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 1, |
| .placement = &vram_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &vram_placement_flags |
| }; |
| |
| static uint32_t vram_gmr_placement_flags[] = { |
| TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED, |
| VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| }; |
| |
| static uint32_t gmr_vram_placement_flags[] = { |
| VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED, |
| TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED |
| }; |
| |
| struct ttm_placement vmw_vram_gmr_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 2, |
| .placement = vram_gmr_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &gmr_placement_flags |
| }; |
| |
| static uint32_t vram_gmr_ne_placement_flags[] = { |
| TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT, |
| VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT |
| }; |
| |
| struct ttm_placement vmw_vram_gmr_ne_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 2, |
| .placement = vram_gmr_ne_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &gmr_ne_placement_flags |
| }; |
| |
| struct ttm_placement vmw_vram_sys_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 1, |
| .placement = &vram_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &sys_placement_flags |
| }; |
| |
| struct ttm_placement vmw_vram_ne_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 1, |
| .placement = &vram_ne_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &vram_ne_placement_flags |
| }; |
| |
| struct ttm_placement vmw_sys_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 1, |
| .placement = &sys_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &sys_placement_flags |
| }; |
| |
| static uint32_t evictable_placement_flags[] = { |
| TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED, |
| TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED, |
| VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| }; |
| |
| struct ttm_placement vmw_evictable_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 3, |
| .placement = evictable_placement_flags, |
| .num_busy_placement = 1, |
| .busy_placement = &sys_placement_flags |
| }; |
| |
| struct ttm_placement vmw_srf_placement = { |
| .fpfn = 0, |
| .lpfn = 0, |
| .num_placement = 1, |
| .num_busy_placement = 2, |
| .placement = &gmr_placement_flags, |
| .busy_placement = gmr_vram_placement_flags |
| }; |
| |
| struct vmw_ttm_tt { |
| struct ttm_tt ttm; |
| struct vmw_private *dev_priv; |
| int gmr_id; |
| }; |
| |
| static int vmw_ttm_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem) |
| { |
| struct vmw_ttm_tt *vmw_be = container_of(ttm, struct vmw_ttm_tt, ttm); |
| |
| vmw_be->gmr_id = bo_mem->start; |
| |
| return vmw_gmr_bind(vmw_be->dev_priv, ttm->pages, |
| ttm->num_pages, vmw_be->gmr_id); |
| } |
| |
| static int vmw_ttm_unbind(struct ttm_tt *ttm) |
| { |
| struct vmw_ttm_tt *vmw_be = container_of(ttm, struct vmw_ttm_tt, ttm); |
| |
| vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id); |
| return 0; |
| } |
| |
| static void vmw_ttm_destroy(struct ttm_tt *ttm) |
| { |
| struct vmw_ttm_tt *vmw_be = container_of(ttm, struct vmw_ttm_tt, ttm); |
| |
| ttm_tt_fini(ttm); |
| kfree(vmw_be); |
| } |
| |
| static struct ttm_backend_func vmw_ttm_func = { |
| .bind = vmw_ttm_bind, |
| .unbind = vmw_ttm_unbind, |
| .destroy = vmw_ttm_destroy, |
| }; |
| |
| struct ttm_tt *vmw_ttm_tt_create(struct ttm_bo_device *bdev, |
| unsigned long size, uint32_t page_flags, |
| struct page *dummy_read_page) |
| { |
| struct vmw_ttm_tt *vmw_be; |
| |
| vmw_be = kmalloc(sizeof(*vmw_be), GFP_KERNEL); |
| if (!vmw_be) |
| return NULL; |
| |
| vmw_be->ttm.func = &vmw_ttm_func; |
| vmw_be->dev_priv = container_of(bdev, struct vmw_private, bdev); |
| |
| if (ttm_tt_init(&vmw_be->ttm, bdev, size, page_flags, dummy_read_page)) { |
| kfree(vmw_be); |
| return NULL; |
| } |
| |
| return &vmw_be->ttm; |
| } |
| |
| int vmw_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) |
| { |
| return 0; |
| } |
| |
| int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, |
| struct ttm_mem_type_manager *man) |
| { |
| switch (type) { |
| case TTM_PL_SYSTEM: |
| /* System memory */ |
| |
| man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; |
| man->available_caching = TTM_PL_FLAG_CACHED; |
| man->default_caching = TTM_PL_FLAG_CACHED; |
| break; |
| case TTM_PL_VRAM: |
| /* "On-card" video ram */ |
| man->func = &ttm_bo_manager_func; |
| man->gpu_offset = 0; |
| man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE; |
| man->available_caching = TTM_PL_FLAG_CACHED; |
| man->default_caching = TTM_PL_FLAG_CACHED; |
| break; |
| case VMW_PL_GMR: |
| /* |
| * "Guest Memory Regions" is an aperture like feature with |
| * one slot per bo. There is an upper limit of the number of |
| * slots as well as the bo size. |
| */ |
| man->func = &vmw_gmrid_manager_func; |
| man->gpu_offset = 0; |
| man->flags = TTM_MEMTYPE_FLAG_CMA | TTM_MEMTYPE_FLAG_MAPPABLE; |
| man->available_caching = TTM_PL_FLAG_CACHED; |
| man->default_caching = TTM_PL_FLAG_CACHED; |
| break; |
| default: |
| DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| void vmw_evict_flags(struct ttm_buffer_object *bo, |
| struct ttm_placement *placement) |
| { |
| *placement = vmw_sys_placement; |
| } |
| |
| static int vmw_verify_access(struct ttm_buffer_object *bo, struct file *filp) |
| { |
| // struct ttm_object_file *tfile = |
| // vmw_fpriv((struct drm_file *)filp->private_data)->tfile; |
| |
| return 0; //vmw_user_dmabuf_verify_access(bo, tfile); |
| } |
| |
| static int vmw_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 vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev); |
| |
| mem->bus.addr = NULL; |
| mem->bus.is_iomem = false; |
| mem->bus.offset = 0; |
| mem->bus.size = mem->num_pages << PAGE_SHIFT; |
| mem->bus.base = 0; |
| if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) |
| return -EINVAL; |
| switch (mem->mem_type) { |
| case TTM_PL_SYSTEM: |
| case VMW_PL_GMR: |
| return 0; |
| case TTM_PL_VRAM: |
| mem->bus.offset = mem->start << PAGE_SHIFT; |
| mem->bus.base = dev_priv->vram_start; |
| mem->bus.is_iomem = true; |
| break; |
| default: |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static void vmw_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) |
| { |
| } |
| |
| static int vmw_ttm_fault_reserve_notify(struct ttm_buffer_object *bo) |
| { |
| return 0; |
| } |
| |
| /** |
| * FIXME: We're using the old vmware polling method to sync. |
| * Do this with fences instead. |
| */ |
| |
| static void *vmw_sync_obj_ref(void *sync_obj) |
| { |
| |
| return (void *) |
| vmw_fence_obj_reference((struct vmw_fence_obj *) sync_obj); |
| } |
| |
| static void vmw_sync_obj_unref(void **sync_obj) |
| { |
| vmw_fence_obj_unreference((struct vmw_fence_obj **) sync_obj); |
| } |
| |
| static int vmw_sync_obj_flush(void *sync_obj) |
| { |
| vmw_fence_obj_flush((struct vmw_fence_obj *) sync_obj); |
| return 0; |
| } |
| |
| static bool vmw_sync_obj_signaled(void *sync_obj) |
| { |
| return vmw_fence_obj_signaled((struct vmw_fence_obj *) sync_obj, |
| DRM_VMW_FENCE_FLAG_EXEC); |
| |
| } |
| |
| static int vmw_sync_obj_wait(void *sync_obj, bool lazy, bool interruptible) |
| { |
| return vmw_fence_obj_wait((struct vmw_fence_obj *) sync_obj, |
| DRM_VMW_FENCE_FLAG_EXEC, |
| lazy, interruptible, |
| VMW_FENCE_WAIT_TIMEOUT); |
| } |
| |
| struct ttm_bo_driver vmw_bo_driver = { |
| .ttm_tt_create = &vmw_ttm_tt_create, |
| .ttm_tt_populate = &ttm_pool_populate, |
| .ttm_tt_unpopulate = &ttm_pool_unpopulate, |
| .invalidate_caches = vmw_invalidate_caches, |
| .init_mem_type = vmw_init_mem_type, |
| .evict_flags = vmw_evict_flags, |
| .move = NULL, |
| .verify_access = vmw_verify_access, |
| .sync_obj_signaled = vmw_sync_obj_signaled, |
| .sync_obj_wait = vmw_sync_obj_wait, |
| .sync_obj_flush = vmw_sync_obj_flush, |
| .sync_obj_unref = vmw_sync_obj_unref, |
| .sync_obj_ref = vmw_sync_obj_ref, |
| .move_notify = NULL, |
| .swap_notify = NULL, |
| .fault_reserve_notify = &vmw_ttm_fault_reserve_notify, |
| .io_mem_reserve = &vmw_ttm_io_mem_reserve, |
| .io_mem_free = &vmw_ttm_io_mem_free, |
| }; |