![Ben Skeggs](/assets/img/avatar_default.png)
Nouveau will no longer load at all if card initialisation fails, so all these checks are unnecessary. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
832 lines
20 KiB
C
832 lines
20 KiB
C
/*
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* Copyright (C) 2008 Ben Skeggs.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "nouveau_drv.h"
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#include "nouveau_drm.h"
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#include "nouveau_dma.h"
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#define nouveau_gem_pushbuf_sync(chan) 0
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int
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nouveau_gem_object_new(struct drm_gem_object *gem)
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{
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return 0;
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}
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void
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nouveau_gem_object_del(struct drm_gem_object *gem)
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{
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struct nouveau_bo *nvbo = gem->driver_private;
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struct ttm_buffer_object *bo = &nvbo->bo;
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if (!nvbo)
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return;
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nvbo->gem = NULL;
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if (unlikely(nvbo->cpu_filp))
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ttm_bo_synccpu_write_release(bo);
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if (unlikely(nvbo->pin_refcnt)) {
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nvbo->pin_refcnt = 1;
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nouveau_bo_unpin(nvbo);
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}
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ttm_bo_unref(&bo);
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drm_gem_object_release(gem);
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kfree(gem);
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}
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int
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nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan,
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int size, int align, uint32_t flags, uint32_t tile_mode,
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uint32_t tile_flags, bool no_vm, bool mappable,
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struct nouveau_bo **pnvbo)
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{
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struct nouveau_bo *nvbo;
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int ret;
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ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode,
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tile_flags, no_vm, mappable, pnvbo);
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if (ret)
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return ret;
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nvbo = *pnvbo;
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nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
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if (!nvbo->gem) {
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nouveau_bo_ref(NULL, pnvbo);
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return -ENOMEM;
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}
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nvbo->bo.persistant_swap_storage = nvbo->gem->filp;
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nvbo->gem->driver_private = nvbo;
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return 0;
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}
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static int
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nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep)
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{
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struct nouveau_bo *nvbo = nouveau_gem_object(gem);
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if (nvbo->bo.mem.mem_type == TTM_PL_TT)
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rep->domain = NOUVEAU_GEM_DOMAIN_GART;
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else
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rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
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rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
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rep->offset = nvbo->bo.offset;
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rep->map_handle = nvbo->mappable ? nvbo->bo.addr_space_offset : 0;
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rep->tile_mode = nvbo->tile_mode;
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rep->tile_flags = nvbo->tile_flags;
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return 0;
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}
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static bool
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nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) {
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switch (tile_flags) {
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case 0x0000:
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case 0x1800:
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case 0x2800:
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case 0x4800:
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case 0x7000:
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case 0x7400:
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case 0x7a00:
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case 0xe000:
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break;
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default:
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NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags);
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return false;
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}
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return true;
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}
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int
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nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct drm_nouveau_gem_new *req = data;
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struct nouveau_bo *nvbo = NULL;
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struct nouveau_channel *chan = NULL;
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uint32_t flags = 0;
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int ret = 0;
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if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
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dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
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if (req->channel_hint) {
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NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
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file_priv, chan);
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}
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if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM)
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flags |= TTM_PL_FLAG_VRAM;
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if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART)
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flags |= TTM_PL_FLAG_TT;
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if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU)
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flags |= TTM_PL_FLAG_SYSTEM;
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if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
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return -EINVAL;
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ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags,
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req->info.tile_mode, req->info.tile_flags, false,
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(req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE),
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&nvbo);
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if (ret)
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return ret;
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ret = nouveau_gem_info(nvbo->gem, &req->info);
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if (ret)
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goto out;
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ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
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out:
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drm_gem_object_handle_unreference_unlocked(nvbo->gem);
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if (ret)
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drm_gem_object_unreference_unlocked(nvbo->gem);
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return ret;
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}
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static int
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nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
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uint32_t write_domains, uint32_t valid_domains)
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{
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struct nouveau_bo *nvbo = gem->driver_private;
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struct ttm_buffer_object *bo = &nvbo->bo;
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uint32_t domains = valid_domains &
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(write_domains ? write_domains : read_domains);
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uint32_t pref_flags = 0, valid_flags = 0;
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if (!domains)
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return -EINVAL;
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if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
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valid_flags |= TTM_PL_FLAG_VRAM;
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if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
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valid_flags |= TTM_PL_FLAG_TT;
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if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
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bo->mem.mem_type == TTM_PL_VRAM)
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pref_flags |= TTM_PL_FLAG_VRAM;
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else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
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bo->mem.mem_type == TTM_PL_TT)
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pref_flags |= TTM_PL_FLAG_TT;
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else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
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pref_flags |= TTM_PL_FLAG_VRAM;
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else
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pref_flags |= TTM_PL_FLAG_TT;
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nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
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return 0;
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}
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struct validate_op {
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struct list_head vram_list;
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struct list_head gart_list;
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struct list_head both_list;
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};
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static void
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validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
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{
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struct list_head *entry, *tmp;
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struct nouveau_bo *nvbo;
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list_for_each_safe(entry, tmp, list) {
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nvbo = list_entry(entry, struct nouveau_bo, entry);
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if (likely(fence)) {
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struct nouveau_fence *prev_fence;
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spin_lock(&nvbo->bo.lock);
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prev_fence = nvbo->bo.sync_obj;
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nvbo->bo.sync_obj = nouveau_fence_ref(fence);
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spin_unlock(&nvbo->bo.lock);
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nouveau_fence_unref((void *)&prev_fence);
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}
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if (unlikely(nvbo->validate_mapped)) {
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ttm_bo_kunmap(&nvbo->kmap);
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nvbo->validate_mapped = false;
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}
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list_del(&nvbo->entry);
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nvbo->reserved_by = NULL;
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ttm_bo_unreserve(&nvbo->bo);
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drm_gem_object_unreference(nvbo->gem);
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}
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}
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static void
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validate_fini(struct validate_op *op, struct nouveau_fence* fence)
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{
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validate_fini_list(&op->vram_list, fence);
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validate_fini_list(&op->gart_list, fence);
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validate_fini_list(&op->both_list, fence);
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}
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static int
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validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
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struct drm_nouveau_gem_pushbuf_bo *pbbo,
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int nr_buffers, struct validate_op *op)
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{
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struct drm_device *dev = chan->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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uint32_t sequence;
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int trycnt = 0;
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int ret, i;
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sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
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retry:
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if (++trycnt > 100000) {
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NV_ERROR(dev, "%s failed and gave up.\n", __func__);
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return -EINVAL;
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}
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for (i = 0; i < nr_buffers; i++) {
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struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
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struct drm_gem_object *gem;
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struct nouveau_bo *nvbo;
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gem = drm_gem_object_lookup(dev, file_priv, b->handle);
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if (!gem) {
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NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
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validate_fini(op, NULL);
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return -EINVAL;
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}
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nvbo = gem->driver_private;
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if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
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NV_ERROR(dev, "multiple instances of buffer %d on "
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"validation list\n", b->handle);
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validate_fini(op, NULL);
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return -EINVAL;
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}
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ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence);
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if (ret) {
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validate_fini(op, NULL);
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if (ret == -EAGAIN)
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ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
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drm_gem_object_unreference(gem);
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if (ret) {
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NV_ERROR(dev, "fail reserve\n");
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return ret;
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}
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goto retry;
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}
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b->user_priv = (uint64_t)(unsigned long)nvbo;
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nvbo->reserved_by = file_priv;
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nvbo->pbbo_index = i;
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if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
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(b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
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list_add_tail(&nvbo->entry, &op->both_list);
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else
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if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
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list_add_tail(&nvbo->entry, &op->vram_list);
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else
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if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
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list_add_tail(&nvbo->entry, &op->gart_list);
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else {
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NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
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b->valid_domains);
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list_add_tail(&nvbo->entry, &op->both_list);
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validate_fini(op, NULL);
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return -EINVAL;
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}
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if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
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validate_fini(op, NULL);
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if (nvbo->cpu_filp == file_priv) {
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NV_ERROR(dev, "bo %p mapped by process trying "
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"to validate it!\n", nvbo);
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return -EINVAL;
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}
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ret = ttm_bo_wait_cpu(&nvbo->bo, false);
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if (ret) {
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NV_ERROR(dev, "fail wait_cpu\n");
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return ret;
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}
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goto retry;
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}
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}
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return 0;
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}
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static int
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validate_list(struct nouveau_channel *chan, struct list_head *list,
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struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
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{
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struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
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(void __force __user *)(uintptr_t)user_pbbo_ptr;
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struct drm_device *dev = chan->dev;
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struct nouveau_bo *nvbo;
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int ret, relocs = 0;
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list_for_each_entry(nvbo, list, entry) {
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struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
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struct nouveau_fence *prev_fence = nvbo->bo.sync_obj;
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if (prev_fence && nouveau_fence_channel(prev_fence) != chan) {
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spin_lock(&nvbo->bo.lock);
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ret = ttm_bo_wait(&nvbo->bo, false, false, false);
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spin_unlock(&nvbo->bo.lock);
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if (unlikely(ret)) {
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NV_ERROR(dev, "fail wait other chan\n");
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return ret;
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}
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}
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ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
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b->write_domains,
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b->valid_domains);
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if (unlikely(ret)) {
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NV_ERROR(dev, "fail set_domain\n");
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return ret;
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}
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nvbo->channel = chan;
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ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
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false, false, false);
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nvbo->channel = NULL;
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if (unlikely(ret)) {
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NV_ERROR(dev, "fail ttm_validate\n");
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return ret;
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}
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if (nvbo->bo.offset == b->presumed.offset &&
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((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
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b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
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(nvbo->bo.mem.mem_type == TTM_PL_TT &&
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b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
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continue;
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if (nvbo->bo.mem.mem_type == TTM_PL_TT)
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b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
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else
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b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
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b->presumed.offset = nvbo->bo.offset;
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b->presumed.valid = 0;
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relocs++;
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if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
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&b->presumed, sizeof(b->presumed)))
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return -EFAULT;
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}
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return relocs;
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}
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static int
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nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
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struct drm_file *file_priv,
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struct drm_nouveau_gem_pushbuf_bo *pbbo,
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uint64_t user_buffers, int nr_buffers,
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struct validate_op *op, int *apply_relocs)
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{
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struct drm_device *dev = chan->dev;
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int ret, relocs = 0;
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INIT_LIST_HEAD(&op->vram_list);
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INIT_LIST_HEAD(&op->gart_list);
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INIT_LIST_HEAD(&op->both_list);
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if (nr_buffers == 0)
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return 0;
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ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
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if (unlikely(ret)) {
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NV_ERROR(dev, "validate_init\n");
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return ret;
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}
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ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
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if (unlikely(ret < 0)) {
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NV_ERROR(dev, "validate vram_list\n");
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validate_fini(op, NULL);
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return ret;
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}
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relocs += ret;
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ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
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if (unlikely(ret < 0)) {
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NV_ERROR(dev, "validate gart_list\n");
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validate_fini(op, NULL);
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return ret;
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}
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relocs += ret;
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ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
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if (unlikely(ret < 0)) {
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NV_ERROR(dev, "validate both_list\n");
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validate_fini(op, NULL);
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return ret;
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}
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relocs += ret;
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*apply_relocs = relocs;
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return 0;
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}
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static inline void *
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u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
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{
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void *mem;
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void __user *userptr = (void __force __user *)(uintptr_t)user;
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mem = kmalloc(nmemb * size, GFP_KERNEL);
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if (!mem)
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return ERR_PTR(-ENOMEM);
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if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
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kfree(mem);
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return ERR_PTR(-EFAULT);
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}
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return mem;
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}
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static int
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nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
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struct drm_nouveau_gem_pushbuf *req,
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struct drm_nouveau_gem_pushbuf_bo *bo)
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{
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struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
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int ret = 0;
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unsigned i;
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|
|
reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
|
|
if (IS_ERR(reloc))
|
|
return PTR_ERR(reloc);
|
|
|
|
for (i = 0; i < req->nr_relocs; i++) {
|
|
struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
|
|
struct drm_nouveau_gem_pushbuf_bo *b;
|
|
struct nouveau_bo *nvbo;
|
|
uint32_t data;
|
|
|
|
if (unlikely(r->bo_index > req->nr_buffers)) {
|
|
NV_ERROR(dev, "reloc bo index invalid\n");
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
b = &bo[r->bo_index];
|
|
if (b->presumed.valid)
|
|
continue;
|
|
|
|
if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
|
|
NV_ERROR(dev, "reloc container bo index invalid\n");
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
|
|
|
|
if (unlikely(r->reloc_bo_offset + 4 >
|
|
nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
|
|
NV_ERROR(dev, "reloc outside of bo\n");
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (!nvbo->kmap.virtual) {
|
|
ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
|
|
&nvbo->kmap);
|
|
if (ret) {
|
|
NV_ERROR(dev, "failed kmap for reloc\n");
|
|
break;
|
|
}
|
|
nvbo->validate_mapped = true;
|
|
}
|
|
|
|
if (r->flags & NOUVEAU_GEM_RELOC_LOW)
|
|
data = b->presumed.offset + r->data;
|
|
else
|
|
if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
|
|
data = (b->presumed.offset + r->data) >> 32;
|
|
else
|
|
data = r->data;
|
|
|
|
if (r->flags & NOUVEAU_GEM_RELOC_OR) {
|
|
if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
|
|
data |= r->tor;
|
|
else
|
|
data |= r->vor;
|
|
}
|
|
|
|
spin_lock(&nvbo->bo.lock);
|
|
ret = ttm_bo_wait(&nvbo->bo, false, false, false);
|
|
spin_unlock(&nvbo->bo.lock);
|
|
if (ret) {
|
|
NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
|
|
}
|
|
|
|
kfree(reloc);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_nouveau_private *dev_priv = dev->dev_private;
|
|
struct drm_nouveau_gem_pushbuf *req = data;
|
|
struct drm_nouveau_gem_pushbuf_push *push;
|
|
struct drm_nouveau_gem_pushbuf_bo *bo;
|
|
struct nouveau_channel *chan;
|
|
struct validate_op op;
|
|
struct nouveau_fence *fence = NULL;
|
|
int i, j, ret = 0, do_reloc = 0;
|
|
|
|
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
|
|
|
|
req->vram_available = dev_priv->fb_aper_free;
|
|
req->gart_available = dev_priv->gart_info.aper_free;
|
|
if (unlikely(req->nr_push == 0))
|
|
goto out_next;
|
|
|
|
if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
|
|
NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
|
|
req->nr_push, NOUVEAU_GEM_MAX_PUSH);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
|
|
NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
|
|
req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
|
|
NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
|
|
req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
|
|
return -EINVAL;
|
|
}
|
|
|
|
push = u_memcpya(req->push, req->nr_push, sizeof(*push));
|
|
if (IS_ERR(push))
|
|
return PTR_ERR(push);
|
|
|
|
bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
|
|
if (IS_ERR(bo)) {
|
|
kfree(push);
|
|
return PTR_ERR(bo);
|
|
}
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
|
|
/* Validate buffer list */
|
|
ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
|
|
req->nr_buffers, &op, &do_reloc);
|
|
if (ret) {
|
|
NV_ERROR(dev, "validate: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
/* Apply any relocations that are required */
|
|
if (do_reloc) {
|
|
ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
|
|
if (ret) {
|
|
NV_ERROR(dev, "reloc apply: %d\n", ret);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (chan->dma.ib_max) {
|
|
ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
|
|
if (ret) {
|
|
NV_INFO(dev, "nv50cal_space: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
struct nouveau_bo *nvbo = (void *)(unsigned long)
|
|
bo[push[i].bo_index].user_priv;
|
|
|
|
nv50_dma_push(chan, nvbo, push[i].offset,
|
|
push[i].length);
|
|
}
|
|
} else
|
|
if (dev_priv->card_type >= NV_20) {
|
|
ret = RING_SPACE(chan, req->nr_push * 2);
|
|
if (ret) {
|
|
NV_ERROR(dev, "cal_space: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
struct nouveau_bo *nvbo = (void *)(unsigned long)
|
|
bo[push[i].bo_index].user_priv;
|
|
struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
|
|
|
|
OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
|
|
push[i].offset) | 2);
|
|
OUT_RING(chan, 0);
|
|
}
|
|
} else {
|
|
ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
|
|
if (ret) {
|
|
NV_ERROR(dev, "jmp_space: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
struct nouveau_bo *nvbo = (void *)(unsigned long)
|
|
bo[push[i].bo_index].user_priv;
|
|
struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
|
|
uint32_t cmd;
|
|
|
|
cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
|
|
cmd |= 0x20000000;
|
|
if (unlikely(cmd != req->suffix0)) {
|
|
if (!nvbo->kmap.virtual) {
|
|
ret = ttm_bo_kmap(&nvbo->bo, 0,
|
|
nvbo->bo.mem.
|
|
num_pages,
|
|
&nvbo->kmap);
|
|
if (ret) {
|
|
WIND_RING(chan);
|
|
goto out;
|
|
}
|
|
nvbo->validate_mapped = true;
|
|
}
|
|
|
|
nouveau_bo_wr32(nvbo, (push[i].offset +
|
|
push[i].length - 8) / 4, cmd);
|
|
}
|
|
|
|
OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
|
|
push[i].offset) | 0x20000000);
|
|
OUT_RING(chan, 0);
|
|
for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
|
|
OUT_RING(chan, 0);
|
|
}
|
|
}
|
|
|
|
ret = nouveau_fence_new(chan, &fence, true);
|
|
if (ret) {
|
|
NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
|
|
WIND_RING(chan);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
validate_fini(&op, fence);
|
|
nouveau_fence_unref((void**)&fence);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
kfree(bo);
|
|
kfree(push);
|
|
|
|
out_next:
|
|
if (chan->dma.ib_max) {
|
|
req->suffix0 = 0x00000000;
|
|
req->suffix1 = 0x00000000;
|
|
} else
|
|
if (dev_priv->card_type >= NV_20) {
|
|
req->suffix0 = 0x00020000;
|
|
req->suffix1 = 0x00000000;
|
|
} else {
|
|
req->suffix0 = 0x20000000 |
|
|
(chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
|
|
req->suffix1 = 0x00000000;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline uint32_t
|
|
domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
|
|
{
|
|
uint32_t flags = 0;
|
|
|
|
if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
|
|
flags |= TTM_PL_FLAG_VRAM;
|
|
if (domain & NOUVEAU_GEM_DOMAIN_GART)
|
|
flags |= TTM_PL_FLAG_TT;
|
|
|
|
return flags;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_nouveau_gem_cpu_prep *req = data;
|
|
struct drm_gem_object *gem;
|
|
struct nouveau_bo *nvbo;
|
|
bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
|
|
int ret = -EINVAL;
|
|
|
|
gem = drm_gem_object_lookup(dev, file_priv, req->handle);
|
|
if (!gem)
|
|
return ret;
|
|
nvbo = nouveau_gem_object(gem);
|
|
|
|
if (nvbo->cpu_filp) {
|
|
if (nvbo->cpu_filp == file_priv)
|
|
goto out;
|
|
|
|
ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
|
|
spin_lock(&nvbo->bo.lock);
|
|
ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
|
|
spin_unlock(&nvbo->bo.lock);
|
|
} else {
|
|
ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
|
|
if (ret == 0)
|
|
nvbo->cpu_filp = file_priv;
|
|
}
|
|
|
|
out:
|
|
drm_gem_object_unreference_unlocked(gem);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_nouveau_gem_cpu_prep *req = data;
|
|
struct drm_gem_object *gem;
|
|
struct nouveau_bo *nvbo;
|
|
int ret = -EINVAL;
|
|
|
|
gem = drm_gem_object_lookup(dev, file_priv, req->handle);
|
|
if (!gem)
|
|
return ret;
|
|
nvbo = nouveau_gem_object(gem);
|
|
|
|
if (nvbo->cpu_filp != file_priv)
|
|
goto out;
|
|
nvbo->cpu_filp = NULL;
|
|
|
|
ttm_bo_synccpu_write_release(&nvbo->bo);
|
|
ret = 0;
|
|
|
|
out:
|
|
drm_gem_object_unreference_unlocked(gem);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_nouveau_gem_info *req = data;
|
|
struct drm_gem_object *gem;
|
|
int ret;
|
|
|
|
gem = drm_gem_object_lookup(dev, file_priv, req->handle);
|
|
if (!gem)
|
|
return -EINVAL;
|
|
|
|
ret = nouveau_gem_info(gem, req);
|
|
drm_gem_object_unreference_unlocked(gem);
|
|
return ret;
|
|
}
|
|
|