![Andrey Grodzovsky](/assets/img/avatar_default.png)
Move all instnaces of this check into a function in amdgpu_gmc.h Rename the original function to a more proper name. v2: Add more places to cleanup. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1613 lines
39 KiB
C
1613 lines
39 KiB
C
/*
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* Copyright 2008 Jerome Glisse.
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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 a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Jerome Glisse <glisse@freedesktop.org>
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*/
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#include <linux/pagemap.h>
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#include <linux/sync_file.h>
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#include <drm/drmP.h>
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#include <drm/amdgpu_drm.h>
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#include <drm/drm_syncobj.h>
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#include "amdgpu.h"
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#include "amdgpu_trace.h"
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#include "amdgpu_gmc.h"
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static int amdgpu_cs_user_fence_chunk(struct amdgpu_cs_parser *p,
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struct drm_amdgpu_cs_chunk_fence *data,
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uint32_t *offset)
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{
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struct drm_gem_object *gobj;
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unsigned long size;
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gobj = drm_gem_object_lookup(p->filp, data->handle);
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if (gobj == NULL)
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return -EINVAL;
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p->uf_entry.robj = amdgpu_bo_ref(gem_to_amdgpu_bo(gobj));
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p->uf_entry.priority = 0;
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p->uf_entry.tv.bo = &p->uf_entry.robj->tbo;
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p->uf_entry.tv.shared = true;
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p->uf_entry.user_pages = NULL;
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size = amdgpu_bo_size(p->uf_entry.robj);
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if (size != PAGE_SIZE || (data->offset + 8) > size)
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return -EINVAL;
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*offset = data->offset;
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drm_gem_object_put_unlocked(gobj);
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if (amdgpu_ttm_tt_get_usermm(p->uf_entry.robj->tbo.ttm)) {
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amdgpu_bo_unref(&p->uf_entry.robj);
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return -EINVAL;
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}
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return 0;
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}
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static int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
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{
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struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
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struct amdgpu_vm *vm = &fpriv->vm;
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union drm_amdgpu_cs *cs = data;
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uint64_t *chunk_array_user;
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uint64_t *chunk_array;
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unsigned size, num_ibs = 0;
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uint32_t uf_offset = 0;
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int i;
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int ret;
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if (cs->in.num_chunks == 0)
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return 0;
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chunk_array = kmalloc_array(cs->in.num_chunks, sizeof(uint64_t), GFP_KERNEL);
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if (!chunk_array)
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return -ENOMEM;
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p->ctx = amdgpu_ctx_get(fpriv, cs->in.ctx_id);
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if (!p->ctx) {
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ret = -EINVAL;
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goto free_chunk;
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}
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/* skip guilty context job */
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if (atomic_read(&p->ctx->guilty) == 1) {
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ret = -ECANCELED;
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goto free_chunk;
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}
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mutex_lock(&p->ctx->lock);
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/* get chunks */
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chunk_array_user = u64_to_user_ptr(cs->in.chunks);
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if (copy_from_user(chunk_array, chunk_array_user,
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sizeof(uint64_t)*cs->in.num_chunks)) {
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ret = -EFAULT;
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goto free_chunk;
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}
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p->nchunks = cs->in.num_chunks;
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p->chunks = kmalloc_array(p->nchunks, sizeof(struct amdgpu_cs_chunk),
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GFP_KERNEL);
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if (!p->chunks) {
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ret = -ENOMEM;
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goto free_chunk;
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}
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for (i = 0; i < p->nchunks; i++) {
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struct drm_amdgpu_cs_chunk __user **chunk_ptr = NULL;
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struct drm_amdgpu_cs_chunk user_chunk;
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uint32_t __user *cdata;
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chunk_ptr = u64_to_user_ptr(chunk_array[i]);
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if (copy_from_user(&user_chunk, chunk_ptr,
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sizeof(struct drm_amdgpu_cs_chunk))) {
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ret = -EFAULT;
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i--;
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goto free_partial_kdata;
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}
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p->chunks[i].chunk_id = user_chunk.chunk_id;
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p->chunks[i].length_dw = user_chunk.length_dw;
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size = p->chunks[i].length_dw;
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cdata = u64_to_user_ptr(user_chunk.chunk_data);
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p->chunks[i].kdata = kvmalloc_array(size, sizeof(uint32_t), GFP_KERNEL);
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if (p->chunks[i].kdata == NULL) {
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ret = -ENOMEM;
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i--;
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goto free_partial_kdata;
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}
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size *= sizeof(uint32_t);
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if (copy_from_user(p->chunks[i].kdata, cdata, size)) {
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ret = -EFAULT;
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goto free_partial_kdata;
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}
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switch (p->chunks[i].chunk_id) {
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case AMDGPU_CHUNK_ID_IB:
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++num_ibs;
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break;
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case AMDGPU_CHUNK_ID_FENCE:
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size = sizeof(struct drm_amdgpu_cs_chunk_fence);
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if (p->chunks[i].length_dw * sizeof(uint32_t) < size) {
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ret = -EINVAL;
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goto free_partial_kdata;
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}
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ret = amdgpu_cs_user_fence_chunk(p, p->chunks[i].kdata,
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&uf_offset);
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if (ret)
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goto free_partial_kdata;
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break;
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case AMDGPU_CHUNK_ID_DEPENDENCIES:
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case AMDGPU_CHUNK_ID_SYNCOBJ_IN:
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case AMDGPU_CHUNK_ID_SYNCOBJ_OUT:
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break;
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default:
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ret = -EINVAL;
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goto free_partial_kdata;
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}
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}
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ret = amdgpu_job_alloc(p->adev, num_ibs, &p->job, vm);
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if (ret)
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goto free_all_kdata;
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if (p->ctx->vram_lost_counter != p->job->vram_lost_counter) {
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ret = -ECANCELED;
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goto free_all_kdata;
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}
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if (p->uf_entry.robj)
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p->job->uf_addr = uf_offset;
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kfree(chunk_array);
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return 0;
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free_all_kdata:
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i = p->nchunks - 1;
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free_partial_kdata:
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for (; i >= 0; i--)
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kvfree(p->chunks[i].kdata);
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kfree(p->chunks);
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p->chunks = NULL;
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p->nchunks = 0;
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free_chunk:
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kfree(chunk_array);
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return ret;
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}
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/* Convert microseconds to bytes. */
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static u64 us_to_bytes(struct amdgpu_device *adev, s64 us)
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{
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if (us <= 0 || !adev->mm_stats.log2_max_MBps)
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return 0;
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/* Since accum_us is incremented by a million per second, just
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* multiply it by the number of MB/s to get the number of bytes.
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*/
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return us << adev->mm_stats.log2_max_MBps;
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}
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static s64 bytes_to_us(struct amdgpu_device *adev, u64 bytes)
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{
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if (!adev->mm_stats.log2_max_MBps)
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return 0;
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return bytes >> adev->mm_stats.log2_max_MBps;
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}
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/* Returns how many bytes TTM can move right now. If no bytes can be moved,
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* it returns 0. If it returns non-zero, it's OK to move at least one buffer,
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* which means it can go over the threshold once. If that happens, the driver
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* will be in debt and no other buffer migrations can be done until that debt
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* is repaid.
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*
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* This approach allows moving a buffer of any size (it's important to allow
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* that).
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*
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* The currency is simply time in microseconds and it increases as the clock
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* ticks. The accumulated microseconds (us) are converted to bytes and
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* returned.
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*/
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static void amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev,
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u64 *max_bytes,
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u64 *max_vis_bytes)
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{
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s64 time_us, increment_us;
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u64 free_vram, total_vram, used_vram;
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/* Allow a maximum of 200 accumulated ms. This is basically per-IB
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* throttling.
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*
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* It means that in order to get full max MBps, at least 5 IBs per
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* second must be submitted and not more than 200ms apart from each
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* other.
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*/
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const s64 us_upper_bound = 200000;
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if (!adev->mm_stats.log2_max_MBps) {
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*max_bytes = 0;
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*max_vis_bytes = 0;
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return;
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}
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total_vram = adev->gmc.real_vram_size - adev->vram_pin_size;
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used_vram = amdgpu_vram_mgr_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
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free_vram = used_vram >= total_vram ? 0 : total_vram - used_vram;
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spin_lock(&adev->mm_stats.lock);
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/* Increase the amount of accumulated us. */
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time_us = ktime_to_us(ktime_get());
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increment_us = time_us - adev->mm_stats.last_update_us;
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adev->mm_stats.last_update_us = time_us;
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adev->mm_stats.accum_us = min(adev->mm_stats.accum_us + increment_us,
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us_upper_bound);
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/* This prevents the short period of low performance when the VRAM
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* usage is low and the driver is in debt or doesn't have enough
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* accumulated us to fill VRAM quickly.
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*
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* The situation can occur in these cases:
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* - a lot of VRAM is freed by userspace
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* - the presence of a big buffer causes a lot of evictions
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* (solution: split buffers into smaller ones)
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*
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* If 128 MB or 1/8th of VRAM is free, start filling it now by setting
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* accum_us to a positive number.
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*/
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if (free_vram >= 128 * 1024 * 1024 || free_vram >= total_vram / 8) {
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s64 min_us;
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/* Be more aggresive on dGPUs. Try to fill a portion of free
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* VRAM now.
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*/
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if (!(adev->flags & AMD_IS_APU))
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min_us = bytes_to_us(adev, free_vram / 4);
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else
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min_us = 0; /* Reset accum_us on APUs. */
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adev->mm_stats.accum_us = max(min_us, adev->mm_stats.accum_us);
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}
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/* This is set to 0 if the driver is in debt to disallow (optional)
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* buffer moves.
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*/
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*max_bytes = us_to_bytes(adev, adev->mm_stats.accum_us);
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/* Do the same for visible VRAM if half of it is free */
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if (!amdgpu_gmc_vram_full_visible(&adev->gmc)) {
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u64 total_vis_vram = adev->gmc.visible_vram_size;
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u64 used_vis_vram =
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amdgpu_vram_mgr_vis_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
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if (used_vis_vram < total_vis_vram) {
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u64 free_vis_vram = total_vis_vram - used_vis_vram;
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adev->mm_stats.accum_us_vis = min(adev->mm_stats.accum_us_vis +
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increment_us, us_upper_bound);
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if (free_vis_vram >= total_vis_vram / 2)
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adev->mm_stats.accum_us_vis =
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max(bytes_to_us(adev, free_vis_vram / 2),
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adev->mm_stats.accum_us_vis);
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}
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*max_vis_bytes = us_to_bytes(adev, adev->mm_stats.accum_us_vis);
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} else {
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*max_vis_bytes = 0;
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}
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spin_unlock(&adev->mm_stats.lock);
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}
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/* Report how many bytes have really been moved for the last command
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* submission. This can result in a debt that can stop buffer migrations
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* temporarily.
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*/
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void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes,
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u64 num_vis_bytes)
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{
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spin_lock(&adev->mm_stats.lock);
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adev->mm_stats.accum_us -= bytes_to_us(adev, num_bytes);
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adev->mm_stats.accum_us_vis -= bytes_to_us(adev, num_vis_bytes);
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spin_unlock(&adev->mm_stats.lock);
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}
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static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p,
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struct amdgpu_bo *bo)
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{
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struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
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struct ttm_operation_ctx ctx = {
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.interruptible = true,
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.no_wait_gpu = false,
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.resv = bo->tbo.resv,
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.flags = 0
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};
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uint32_t domain;
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int r;
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if (bo->pin_count)
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return 0;
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/* Don't move this buffer if we have depleted our allowance
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* to move it. Don't move anything if the threshold is zero.
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*/
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if (p->bytes_moved < p->bytes_moved_threshold) {
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if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
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(bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)) {
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/* And don't move a CPU_ACCESS_REQUIRED BO to limited
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* visible VRAM if we've depleted our allowance to do
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* that.
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*/
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if (p->bytes_moved_vis < p->bytes_moved_vis_threshold)
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domain = bo->preferred_domains;
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else
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domain = bo->allowed_domains;
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} else {
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domain = bo->preferred_domains;
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}
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} else {
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domain = bo->allowed_domains;
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}
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retry:
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amdgpu_ttm_placement_from_domain(bo, domain);
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r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
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p->bytes_moved += ctx.bytes_moved;
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if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
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amdgpu_bo_in_cpu_visible_vram(bo))
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p->bytes_moved_vis += ctx.bytes_moved;
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if (unlikely(r == -ENOMEM) && domain != bo->allowed_domains) {
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domain = bo->allowed_domains;
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goto retry;
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}
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return r;
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}
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/* Last resort, try to evict something from the current working set */
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static bool amdgpu_cs_try_evict(struct amdgpu_cs_parser *p,
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struct amdgpu_bo *validated)
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{
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uint32_t domain = validated->allowed_domains;
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struct ttm_operation_ctx ctx = { true, false };
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int r;
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if (!p->evictable)
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return false;
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for (;&p->evictable->tv.head != &p->validated;
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p->evictable = list_prev_entry(p->evictable, tv.head)) {
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struct amdgpu_bo_list_entry *candidate = p->evictable;
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struct amdgpu_bo *bo = candidate->robj;
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struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
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bool update_bytes_moved_vis;
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uint32_t other;
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/* If we reached our current BO we can forget it */
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if (candidate->robj == validated)
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break;
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/* We can't move pinned BOs here */
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if (bo->pin_count)
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continue;
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other = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
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|
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/* Check if this BO is in one of the domains we need space for */
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if (!(other & domain))
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continue;
|
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|
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/* Check if we can move this BO somewhere else */
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other = bo->allowed_domains & ~domain;
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if (!other)
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continue;
|
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|
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/* Good we can try to move this BO somewhere else */
|
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update_bytes_moved_vis =
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!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
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amdgpu_bo_in_cpu_visible_vram(bo);
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amdgpu_ttm_placement_from_domain(bo, other);
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r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
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p->bytes_moved += ctx.bytes_moved;
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if (update_bytes_moved_vis)
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p->bytes_moved_vis += ctx.bytes_moved;
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if (unlikely(r))
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break;
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p->evictable = list_prev_entry(p->evictable, tv.head);
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list_move(&candidate->tv.head, &p->validated);
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return true;
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}
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return false;
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}
|
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|
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static int amdgpu_cs_validate(void *param, struct amdgpu_bo *bo)
|
|
{
|
|
struct amdgpu_cs_parser *p = param;
|
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int r;
|
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|
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do {
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r = amdgpu_cs_bo_validate(p, bo);
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} while (r == -ENOMEM && amdgpu_cs_try_evict(p, bo));
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if (r)
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return r;
|
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|
|
if (bo->shadow)
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r = amdgpu_cs_bo_validate(p, bo->shadow);
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|
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return r;
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}
|
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|
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static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
|
|
struct list_head *validated)
|
|
{
|
|
struct ttm_operation_ctx ctx = { true, false };
|
|
struct amdgpu_bo_list_entry *lobj;
|
|
int r;
|
|
|
|
list_for_each_entry(lobj, validated, tv.head) {
|
|
struct amdgpu_bo *bo = lobj->robj;
|
|
bool binding_userptr = false;
|
|
struct mm_struct *usermm;
|
|
|
|
usermm = amdgpu_ttm_tt_get_usermm(bo->tbo.ttm);
|
|
if (usermm && usermm != current->mm)
|
|
return -EPERM;
|
|
|
|
/* Check if we have user pages and nobody bound the BO already */
|
|
if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm) &&
|
|
lobj->user_pages) {
|
|
amdgpu_ttm_placement_from_domain(bo,
|
|
AMDGPU_GEM_DOMAIN_CPU);
|
|
r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
|
|
if (r)
|
|
return r;
|
|
amdgpu_ttm_tt_set_user_pages(bo->tbo.ttm,
|
|
lobj->user_pages);
|
|
binding_userptr = true;
|
|
}
|
|
|
|
if (p->evictable == lobj)
|
|
p->evictable = NULL;
|
|
|
|
r = amdgpu_cs_validate(p, bo);
|
|
if (r)
|
|
return r;
|
|
|
|
if (binding_userptr) {
|
|
kvfree(lobj->user_pages);
|
|
lobj->user_pages = NULL;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
|
|
union drm_amdgpu_cs *cs)
|
|
{
|
|
struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
|
|
struct amdgpu_bo_list_entry *e;
|
|
struct list_head duplicates;
|
|
unsigned i, tries = 10;
|
|
struct amdgpu_bo *gds;
|
|
struct amdgpu_bo *gws;
|
|
struct amdgpu_bo *oa;
|
|
int r;
|
|
|
|
INIT_LIST_HEAD(&p->validated);
|
|
|
|
p->bo_list = amdgpu_bo_list_get(fpriv, cs->in.bo_list_handle);
|
|
if (p->bo_list) {
|
|
amdgpu_bo_list_get_list(p->bo_list, &p->validated);
|
|
if (p->bo_list->first_userptr != p->bo_list->num_entries)
|
|
p->mn = amdgpu_mn_get(p->adev, AMDGPU_MN_TYPE_GFX);
|
|
}
|
|
|
|
INIT_LIST_HEAD(&duplicates);
|
|
amdgpu_vm_get_pd_bo(&fpriv->vm, &p->validated, &p->vm_pd);
|
|
|
|
if (p->uf_entry.robj && !p->uf_entry.robj->parent)
|
|
list_add(&p->uf_entry.tv.head, &p->validated);
|
|
|
|
while (1) {
|
|
struct list_head need_pages;
|
|
unsigned i;
|
|
|
|
r = ttm_eu_reserve_buffers(&p->ticket, &p->validated, true,
|
|
&duplicates);
|
|
if (unlikely(r != 0)) {
|
|
if (r != -ERESTARTSYS)
|
|
DRM_ERROR("ttm_eu_reserve_buffers failed.\n");
|
|
goto error_free_pages;
|
|
}
|
|
|
|
/* Without a BO list we don't have userptr BOs */
|
|
if (!p->bo_list)
|
|
break;
|
|
|
|
INIT_LIST_HEAD(&need_pages);
|
|
for (i = p->bo_list->first_userptr;
|
|
i < p->bo_list->num_entries; ++i) {
|
|
struct amdgpu_bo *bo;
|
|
|
|
e = &p->bo_list->array[i];
|
|
bo = e->robj;
|
|
|
|
if (amdgpu_ttm_tt_userptr_invalidated(bo->tbo.ttm,
|
|
&e->user_invalidated) && e->user_pages) {
|
|
|
|
/* We acquired a page array, but somebody
|
|
* invalidated it. Free it and try again
|
|
*/
|
|
release_pages(e->user_pages,
|
|
bo->tbo.ttm->num_pages);
|
|
kvfree(e->user_pages);
|
|
e->user_pages = NULL;
|
|
}
|
|
|
|
if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm) &&
|
|
!e->user_pages) {
|
|
list_del(&e->tv.head);
|
|
list_add(&e->tv.head, &need_pages);
|
|
|
|
amdgpu_bo_unreserve(e->robj);
|
|
}
|
|
}
|
|
|
|
if (list_empty(&need_pages))
|
|
break;
|
|
|
|
/* Unreserve everything again. */
|
|
ttm_eu_backoff_reservation(&p->ticket, &p->validated);
|
|
|
|
/* We tried too many times, just abort */
|
|
if (!--tries) {
|
|
r = -EDEADLK;
|
|
DRM_ERROR("deadlock in %s\n", __func__);
|
|
goto error_free_pages;
|
|
}
|
|
|
|
/* Fill the page arrays for all userptrs. */
|
|
list_for_each_entry(e, &need_pages, tv.head) {
|
|
struct ttm_tt *ttm = e->robj->tbo.ttm;
|
|
|
|
e->user_pages = kvmalloc_array(ttm->num_pages,
|
|
sizeof(struct page*),
|
|
GFP_KERNEL | __GFP_ZERO);
|
|
if (!e->user_pages) {
|
|
r = -ENOMEM;
|
|
DRM_ERROR("calloc failure in %s\n", __func__);
|
|
goto error_free_pages;
|
|
}
|
|
|
|
r = amdgpu_ttm_tt_get_user_pages(ttm, e->user_pages);
|
|
if (r) {
|
|
DRM_ERROR("amdgpu_ttm_tt_get_user_pages failed.\n");
|
|
kvfree(e->user_pages);
|
|
e->user_pages = NULL;
|
|
goto error_free_pages;
|
|
}
|
|
}
|
|
|
|
/* And try again. */
|
|
list_splice(&need_pages, &p->validated);
|
|
}
|
|
|
|
amdgpu_cs_get_threshold_for_moves(p->adev, &p->bytes_moved_threshold,
|
|
&p->bytes_moved_vis_threshold);
|
|
p->bytes_moved = 0;
|
|
p->bytes_moved_vis = 0;
|
|
p->evictable = list_last_entry(&p->validated,
|
|
struct amdgpu_bo_list_entry,
|
|
tv.head);
|
|
|
|
r = amdgpu_vm_validate_pt_bos(p->adev, &fpriv->vm,
|
|
amdgpu_cs_validate, p);
|
|
if (r) {
|
|
DRM_ERROR("amdgpu_vm_validate_pt_bos() failed.\n");
|
|
goto error_validate;
|
|
}
|
|
|
|
r = amdgpu_cs_list_validate(p, &duplicates);
|
|
if (r) {
|
|
DRM_ERROR("amdgpu_cs_list_validate(duplicates) failed.\n");
|
|
goto error_validate;
|
|
}
|
|
|
|
r = amdgpu_cs_list_validate(p, &p->validated);
|
|
if (r) {
|
|
DRM_ERROR("amdgpu_cs_list_validate(validated) failed.\n");
|
|
goto error_validate;
|
|
}
|
|
|
|
amdgpu_cs_report_moved_bytes(p->adev, p->bytes_moved,
|
|
p->bytes_moved_vis);
|
|
|
|
if (p->bo_list) {
|
|
struct amdgpu_vm *vm = &fpriv->vm;
|
|
unsigned i;
|
|
|
|
gds = p->bo_list->gds_obj;
|
|
gws = p->bo_list->gws_obj;
|
|
oa = p->bo_list->oa_obj;
|
|
for (i = 0; i < p->bo_list->num_entries; i++) {
|
|
struct amdgpu_bo *bo = p->bo_list->array[i].robj;
|
|
|
|
p->bo_list->array[i].bo_va = amdgpu_vm_bo_find(vm, bo);
|
|
}
|
|
} else {
|
|
gds = p->adev->gds.gds_gfx_bo;
|
|
gws = p->adev->gds.gws_gfx_bo;
|
|
oa = p->adev->gds.oa_gfx_bo;
|
|
}
|
|
|
|
if (gds) {
|
|
p->job->gds_base = amdgpu_bo_gpu_offset(gds);
|
|
p->job->gds_size = amdgpu_bo_size(gds);
|
|
}
|
|
if (gws) {
|
|
p->job->gws_base = amdgpu_bo_gpu_offset(gws);
|
|
p->job->gws_size = amdgpu_bo_size(gws);
|
|
}
|
|
if (oa) {
|
|
p->job->oa_base = amdgpu_bo_gpu_offset(oa);
|
|
p->job->oa_size = amdgpu_bo_size(oa);
|
|
}
|
|
|
|
if (!r && p->uf_entry.robj) {
|
|
struct amdgpu_bo *uf = p->uf_entry.robj;
|
|
|
|
r = amdgpu_ttm_alloc_gart(&uf->tbo);
|
|
p->job->uf_addr += amdgpu_bo_gpu_offset(uf);
|
|
}
|
|
|
|
error_validate:
|
|
if (r)
|
|
ttm_eu_backoff_reservation(&p->ticket, &p->validated);
|
|
|
|
error_free_pages:
|
|
|
|
if (p->bo_list) {
|
|
for (i = p->bo_list->first_userptr;
|
|
i < p->bo_list->num_entries; ++i) {
|
|
e = &p->bo_list->array[i];
|
|
|
|
if (!e->user_pages)
|
|
continue;
|
|
|
|
release_pages(e->user_pages,
|
|
e->robj->tbo.ttm->num_pages);
|
|
kvfree(e->user_pages);
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int amdgpu_cs_sync_rings(struct amdgpu_cs_parser *p)
|
|
{
|
|
struct amdgpu_bo_list_entry *e;
|
|
int r;
|
|
|
|
list_for_each_entry(e, &p->validated, tv.head) {
|
|
struct reservation_object *resv = e->robj->tbo.resv;
|
|
r = amdgpu_sync_resv(p->adev, &p->job->sync, resv, p->filp,
|
|
amdgpu_bo_explicit_sync(e->robj));
|
|
|
|
if (r)
|
|
return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* cs_parser_fini() - clean parser states
|
|
* @parser: parser structure holding parsing context.
|
|
* @error: error number
|
|
*
|
|
* If error is set than unvalidate buffer, otherwise just free memory
|
|
* used by parsing context.
|
|
**/
|
|
static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error,
|
|
bool backoff)
|
|
{
|
|
unsigned i;
|
|
|
|
if (error && backoff)
|
|
ttm_eu_backoff_reservation(&parser->ticket,
|
|
&parser->validated);
|
|
|
|
for (i = 0; i < parser->num_post_dep_syncobjs; i++)
|
|
drm_syncobj_put(parser->post_dep_syncobjs[i]);
|
|
kfree(parser->post_dep_syncobjs);
|
|
|
|
dma_fence_put(parser->fence);
|
|
|
|
if (parser->ctx) {
|
|
mutex_unlock(&parser->ctx->lock);
|
|
amdgpu_ctx_put(parser->ctx);
|
|
}
|
|
if (parser->bo_list)
|
|
amdgpu_bo_list_put(parser->bo_list);
|
|
|
|
for (i = 0; i < parser->nchunks; i++)
|
|
kvfree(parser->chunks[i].kdata);
|
|
kfree(parser->chunks);
|
|
if (parser->job)
|
|
amdgpu_job_free(parser->job);
|
|
amdgpu_bo_unref(&parser->uf_entry.robj);
|
|
}
|
|
|
|
static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p)
|
|
{
|
|
struct amdgpu_device *adev = p->adev;
|
|
struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
|
|
struct amdgpu_vm *vm = &fpriv->vm;
|
|
struct amdgpu_bo_va *bo_va;
|
|
struct amdgpu_bo *bo;
|
|
int i, r;
|
|
|
|
r = amdgpu_vm_clear_freed(adev, vm, NULL);
|
|
if (r)
|
|
return r;
|
|
|
|
r = amdgpu_vm_bo_update(adev, fpriv->prt_va, false);
|
|
if (r)
|
|
return r;
|
|
|
|
r = amdgpu_sync_fence(adev, &p->job->sync,
|
|
fpriv->prt_va->last_pt_update, false);
|
|
if (r)
|
|
return r;
|
|
|
|
if (amdgpu_sriov_vf(adev)) {
|
|
struct dma_fence *f;
|
|
|
|
bo_va = fpriv->csa_va;
|
|
BUG_ON(!bo_va);
|
|
r = amdgpu_vm_bo_update(adev, bo_va, false);
|
|
if (r)
|
|
return r;
|
|
|
|
f = bo_va->last_pt_update;
|
|
r = amdgpu_sync_fence(adev, &p->job->sync, f, false);
|
|
if (r)
|
|
return r;
|
|
}
|
|
|
|
if (p->bo_list) {
|
|
for (i = 0; i < p->bo_list->num_entries; i++) {
|
|
struct dma_fence *f;
|
|
|
|
/* ignore duplicates */
|
|
bo = p->bo_list->array[i].robj;
|
|
if (!bo)
|
|
continue;
|
|
|
|
bo_va = p->bo_list->array[i].bo_va;
|
|
if (bo_va == NULL)
|
|
continue;
|
|
|
|
r = amdgpu_vm_bo_update(adev, bo_va, false);
|
|
if (r)
|
|
return r;
|
|
|
|
f = bo_va->last_pt_update;
|
|
r = amdgpu_sync_fence(adev, &p->job->sync, f, false);
|
|
if (r)
|
|
return r;
|
|
}
|
|
|
|
}
|
|
|
|
r = amdgpu_vm_handle_moved(adev, vm);
|
|
if (r)
|
|
return r;
|
|
|
|
r = amdgpu_vm_update_directories(adev, vm);
|
|
if (r)
|
|
return r;
|
|
|
|
r = amdgpu_sync_fence(adev, &p->job->sync, vm->last_update, false);
|
|
if (r)
|
|
return r;
|
|
|
|
if (amdgpu_vm_debug && p->bo_list) {
|
|
/* Invalidate all BOs to test for userspace bugs */
|
|
for (i = 0; i < p->bo_list->num_entries; i++) {
|
|
/* ignore duplicates */
|
|
bo = p->bo_list->array[i].robj;
|
|
if (!bo)
|
|
continue;
|
|
|
|
amdgpu_vm_bo_invalidate(adev, bo, false);
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev,
|
|
struct amdgpu_cs_parser *p)
|
|
{
|
|
struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
|
|
struct amdgpu_vm *vm = &fpriv->vm;
|
|
struct amdgpu_ring *ring = p->job->ring;
|
|
int r;
|
|
|
|
/* Only for UVD/VCE VM emulation */
|
|
if (p->job->ring->funcs->parse_cs) {
|
|
unsigned i, j;
|
|
|
|
for (i = 0, j = 0; i < p->nchunks && j < p->job->num_ibs; i++) {
|
|
struct drm_amdgpu_cs_chunk_ib *chunk_ib;
|
|
struct amdgpu_bo_va_mapping *m;
|
|
struct amdgpu_bo *aobj = NULL;
|
|
struct amdgpu_cs_chunk *chunk;
|
|
uint64_t offset, va_start;
|
|
struct amdgpu_ib *ib;
|
|
uint8_t *kptr;
|
|
|
|
chunk = &p->chunks[i];
|
|
ib = &p->job->ibs[j];
|
|
chunk_ib = chunk->kdata;
|
|
|
|
if (chunk->chunk_id != AMDGPU_CHUNK_ID_IB)
|
|
continue;
|
|
|
|
va_start = chunk_ib->va_start & AMDGPU_VA_HOLE_MASK;
|
|
r = amdgpu_cs_find_mapping(p, va_start, &aobj, &m);
|
|
if (r) {
|
|
DRM_ERROR("IB va_start is invalid\n");
|
|
return r;
|
|
}
|
|
|
|
if ((va_start + chunk_ib->ib_bytes) >
|
|
(m->last + 1) * AMDGPU_GPU_PAGE_SIZE) {
|
|
DRM_ERROR("IB va_start+ib_bytes is invalid\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* the IB should be reserved at this point */
|
|
r = amdgpu_bo_kmap(aobj, (void **)&kptr);
|
|
if (r) {
|
|
return r;
|
|
}
|
|
|
|
offset = m->start * AMDGPU_GPU_PAGE_SIZE;
|
|
kptr += va_start - offset;
|
|
|
|
memcpy(ib->ptr, kptr, chunk_ib->ib_bytes);
|
|
amdgpu_bo_kunmap(aobj);
|
|
|
|
r = amdgpu_ring_parse_cs(ring, p, j);
|
|
if (r)
|
|
return r;
|
|
|
|
j++;
|
|
}
|
|
}
|
|
|
|
if (p->job->vm) {
|
|
p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->root.base.bo);
|
|
|
|
r = amdgpu_bo_vm_update_pte(p);
|
|
if (r)
|
|
return r;
|
|
}
|
|
|
|
return amdgpu_cs_sync_rings(p);
|
|
}
|
|
|
|
static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
|
|
struct amdgpu_cs_parser *parser)
|
|
{
|
|
struct amdgpu_fpriv *fpriv = parser->filp->driver_priv;
|
|
struct amdgpu_vm *vm = &fpriv->vm;
|
|
int i, j;
|
|
int r, ce_preempt = 0, de_preempt = 0;
|
|
|
|
for (i = 0, j = 0; i < parser->nchunks && j < parser->job->num_ibs; i++) {
|
|
struct amdgpu_cs_chunk *chunk;
|
|
struct amdgpu_ib *ib;
|
|
struct drm_amdgpu_cs_chunk_ib *chunk_ib;
|
|
struct amdgpu_ring *ring;
|
|
|
|
chunk = &parser->chunks[i];
|
|
ib = &parser->job->ibs[j];
|
|
chunk_ib = (struct drm_amdgpu_cs_chunk_ib *)chunk->kdata;
|
|
|
|
if (chunk->chunk_id != AMDGPU_CHUNK_ID_IB)
|
|
continue;
|
|
|
|
if (chunk_ib->ip_type == AMDGPU_HW_IP_GFX && amdgpu_sriov_vf(adev)) {
|
|
if (chunk_ib->flags & AMDGPU_IB_FLAG_PREEMPT) {
|
|
if (chunk_ib->flags & AMDGPU_IB_FLAG_CE)
|
|
ce_preempt++;
|
|
else
|
|
de_preempt++;
|
|
}
|
|
|
|
/* each GFX command submit allows 0 or 1 IB preemptible for CE & DE */
|
|
if (ce_preempt > 1 || de_preempt > 1)
|
|
return -EINVAL;
|
|
}
|
|
|
|
r = amdgpu_queue_mgr_map(adev, &parser->ctx->queue_mgr, chunk_ib->ip_type,
|
|
chunk_ib->ip_instance, chunk_ib->ring, &ring);
|
|
if (r)
|
|
return r;
|
|
|
|
if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE) {
|
|
parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT;
|
|
if (!parser->ctx->preamble_presented) {
|
|
parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST;
|
|
parser->ctx->preamble_presented = true;
|
|
}
|
|
}
|
|
|
|
if (parser->job->ring && parser->job->ring != ring)
|
|
return -EINVAL;
|
|
|
|
parser->job->ring = ring;
|
|
|
|
r = amdgpu_ib_get(adev, vm,
|
|
ring->funcs->parse_cs ? chunk_ib->ib_bytes : 0,
|
|
ib);
|
|
if (r) {
|
|
DRM_ERROR("Failed to get ib !\n");
|
|
return r;
|
|
}
|
|
|
|
ib->gpu_addr = chunk_ib->va_start;
|
|
ib->length_dw = chunk_ib->ib_bytes / 4;
|
|
ib->flags = chunk_ib->flags;
|
|
|
|
j++;
|
|
}
|
|
|
|
/* UVD & VCE fw doesn't support user fences */
|
|
if (parser->job->uf_addr && (
|
|
parser->job->ring->funcs->type == AMDGPU_RING_TYPE_UVD ||
|
|
parser->job->ring->funcs->type == AMDGPU_RING_TYPE_VCE))
|
|
return -EINVAL;
|
|
|
|
return amdgpu_ctx_wait_prev_fence(parser->ctx, parser->job->ring->idx);
|
|
}
|
|
|
|
static int amdgpu_cs_process_fence_dep(struct amdgpu_cs_parser *p,
|
|
struct amdgpu_cs_chunk *chunk)
|
|
{
|
|
struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
|
|
unsigned num_deps;
|
|
int i, r;
|
|
struct drm_amdgpu_cs_chunk_dep *deps;
|
|
|
|
deps = (struct drm_amdgpu_cs_chunk_dep *)chunk->kdata;
|
|
num_deps = chunk->length_dw * 4 /
|
|
sizeof(struct drm_amdgpu_cs_chunk_dep);
|
|
|
|
for (i = 0; i < num_deps; ++i) {
|
|
struct amdgpu_ring *ring;
|
|
struct amdgpu_ctx *ctx;
|
|
struct dma_fence *fence;
|
|
|
|
ctx = amdgpu_ctx_get(fpriv, deps[i].ctx_id);
|
|
if (ctx == NULL)
|
|
return -EINVAL;
|
|
|
|
r = amdgpu_queue_mgr_map(p->adev, &ctx->queue_mgr,
|
|
deps[i].ip_type,
|
|
deps[i].ip_instance,
|
|
deps[i].ring, &ring);
|
|
if (r) {
|
|
amdgpu_ctx_put(ctx);
|
|
return r;
|
|
}
|
|
|
|
fence = amdgpu_ctx_get_fence(ctx, ring,
|
|
deps[i].handle);
|
|
if (IS_ERR(fence)) {
|
|
r = PTR_ERR(fence);
|
|
amdgpu_ctx_put(ctx);
|
|
return r;
|
|
} else if (fence) {
|
|
r = amdgpu_sync_fence(p->adev, &p->job->sync, fence,
|
|
true);
|
|
dma_fence_put(fence);
|
|
amdgpu_ctx_put(ctx);
|
|
if (r)
|
|
return r;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_syncobj_lookup_and_add_to_sync(struct amdgpu_cs_parser *p,
|
|
uint32_t handle)
|
|
{
|
|
int r;
|
|
struct dma_fence *fence;
|
|
r = drm_syncobj_find_fence(p->filp, handle, &fence);
|
|
if (r)
|
|
return r;
|
|
|
|
r = amdgpu_sync_fence(p->adev, &p->job->sync, fence, true);
|
|
dma_fence_put(fence);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int amdgpu_cs_process_syncobj_in_dep(struct amdgpu_cs_parser *p,
|
|
struct amdgpu_cs_chunk *chunk)
|
|
{
|
|
unsigned num_deps;
|
|
int i, r;
|
|
struct drm_amdgpu_cs_chunk_sem *deps;
|
|
|
|
deps = (struct drm_amdgpu_cs_chunk_sem *)chunk->kdata;
|
|
num_deps = chunk->length_dw * 4 /
|
|
sizeof(struct drm_amdgpu_cs_chunk_sem);
|
|
|
|
for (i = 0; i < num_deps; ++i) {
|
|
r = amdgpu_syncobj_lookup_and_add_to_sync(p, deps[i].handle);
|
|
if (r)
|
|
return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_cs_process_syncobj_out_dep(struct amdgpu_cs_parser *p,
|
|
struct amdgpu_cs_chunk *chunk)
|
|
{
|
|
unsigned num_deps;
|
|
int i;
|
|
struct drm_amdgpu_cs_chunk_sem *deps;
|
|
deps = (struct drm_amdgpu_cs_chunk_sem *)chunk->kdata;
|
|
num_deps = chunk->length_dw * 4 /
|
|
sizeof(struct drm_amdgpu_cs_chunk_sem);
|
|
|
|
p->post_dep_syncobjs = kmalloc_array(num_deps,
|
|
sizeof(struct drm_syncobj *),
|
|
GFP_KERNEL);
|
|
p->num_post_dep_syncobjs = 0;
|
|
|
|
if (!p->post_dep_syncobjs)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_deps; ++i) {
|
|
p->post_dep_syncobjs[i] = drm_syncobj_find(p->filp, deps[i].handle);
|
|
if (!p->post_dep_syncobjs[i])
|
|
return -EINVAL;
|
|
p->num_post_dep_syncobjs++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
|
|
struct amdgpu_cs_parser *p)
|
|
{
|
|
int i, r;
|
|
|
|
for (i = 0; i < p->nchunks; ++i) {
|
|
struct amdgpu_cs_chunk *chunk;
|
|
|
|
chunk = &p->chunks[i];
|
|
|
|
if (chunk->chunk_id == AMDGPU_CHUNK_ID_DEPENDENCIES) {
|
|
r = amdgpu_cs_process_fence_dep(p, chunk);
|
|
if (r)
|
|
return r;
|
|
} else if (chunk->chunk_id == AMDGPU_CHUNK_ID_SYNCOBJ_IN) {
|
|
r = amdgpu_cs_process_syncobj_in_dep(p, chunk);
|
|
if (r)
|
|
return r;
|
|
} else if (chunk->chunk_id == AMDGPU_CHUNK_ID_SYNCOBJ_OUT) {
|
|
r = amdgpu_cs_process_syncobj_out_dep(p, chunk);
|
|
if (r)
|
|
return r;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void amdgpu_cs_post_dependencies(struct amdgpu_cs_parser *p)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < p->num_post_dep_syncobjs; ++i)
|
|
drm_syncobj_replace_fence(p->post_dep_syncobjs[i], p->fence);
|
|
}
|
|
|
|
static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
|
|
union drm_amdgpu_cs *cs)
|
|
{
|
|
struct amdgpu_ring *ring = p->job->ring;
|
|
struct drm_sched_entity *entity = &p->ctx->rings[ring->idx].entity;
|
|
struct amdgpu_job *job;
|
|
unsigned i;
|
|
uint64_t seq;
|
|
|
|
int r;
|
|
|
|
amdgpu_mn_lock(p->mn);
|
|
if (p->bo_list) {
|
|
for (i = p->bo_list->first_userptr;
|
|
i < p->bo_list->num_entries; ++i) {
|
|
struct amdgpu_bo *bo = p->bo_list->array[i].robj;
|
|
|
|
if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm)) {
|
|
amdgpu_mn_unlock(p->mn);
|
|
return -ERESTARTSYS;
|
|
}
|
|
}
|
|
}
|
|
|
|
job = p->job;
|
|
p->job = NULL;
|
|
|
|
r = drm_sched_job_init(&job->base, &ring->sched, entity, p->filp);
|
|
if (r) {
|
|
amdgpu_job_free(job);
|
|
amdgpu_mn_unlock(p->mn);
|
|
return r;
|
|
}
|
|
|
|
job->owner = p->filp;
|
|
job->fence_ctx = entity->fence_context;
|
|
p->fence = dma_fence_get(&job->base.s_fence->finished);
|
|
|
|
r = amdgpu_ctx_add_fence(p->ctx, ring, p->fence, &seq);
|
|
if (r) {
|
|
dma_fence_put(p->fence);
|
|
dma_fence_put(&job->base.s_fence->finished);
|
|
amdgpu_job_free(job);
|
|
amdgpu_mn_unlock(p->mn);
|
|
return r;
|
|
}
|
|
|
|
amdgpu_cs_post_dependencies(p);
|
|
|
|
cs->out.handle = seq;
|
|
job->uf_sequence = seq;
|
|
|
|
amdgpu_job_free_resources(job);
|
|
amdgpu_ring_priority_get(job->ring, job->base.s_priority);
|
|
|
|
trace_amdgpu_cs_ioctl(job);
|
|
drm_sched_entity_push_job(&job->base, entity);
|
|
|
|
ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence);
|
|
amdgpu_mn_unlock(p->mn);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
|
|
{
|
|
struct amdgpu_device *adev = dev->dev_private;
|
|
union drm_amdgpu_cs *cs = data;
|
|
struct amdgpu_cs_parser parser = {};
|
|
bool reserved_buffers = false;
|
|
int i, r;
|
|
|
|
if (!adev->accel_working)
|
|
return -EBUSY;
|
|
|
|
parser.adev = adev;
|
|
parser.filp = filp;
|
|
|
|
r = amdgpu_cs_parser_init(&parser, data);
|
|
if (r) {
|
|
DRM_ERROR("Failed to initialize parser !\n");
|
|
goto out;
|
|
}
|
|
|
|
r = amdgpu_cs_ib_fill(adev, &parser);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = amdgpu_cs_parser_bos(&parser, data);
|
|
if (r) {
|
|
if (r == -ENOMEM)
|
|
DRM_ERROR("Not enough memory for command submission!\n");
|
|
else if (r != -ERESTARTSYS)
|
|
DRM_ERROR("Failed to process the buffer list %d!\n", r);
|
|
goto out;
|
|
}
|
|
|
|
reserved_buffers = true;
|
|
|
|
r = amdgpu_cs_dependencies(adev, &parser);
|
|
if (r) {
|
|
DRM_ERROR("Failed in the dependencies handling %d!\n", r);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < parser.job->num_ibs; i++)
|
|
trace_amdgpu_cs(&parser, i);
|
|
|
|
r = amdgpu_cs_ib_vm_chunk(adev, &parser);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = amdgpu_cs_submit(&parser, cs);
|
|
|
|
out:
|
|
amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_cs_wait_ioctl - wait for a command submission to finish
|
|
*
|
|
* @dev: drm device
|
|
* @data: data from userspace
|
|
* @filp: file private
|
|
*
|
|
* Wait for the command submission identified by handle to finish.
|
|
*/
|
|
int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *filp)
|
|
{
|
|
union drm_amdgpu_wait_cs *wait = data;
|
|
struct amdgpu_device *adev = dev->dev_private;
|
|
unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout);
|
|
struct amdgpu_ring *ring = NULL;
|
|
struct amdgpu_ctx *ctx;
|
|
struct dma_fence *fence;
|
|
long r;
|
|
|
|
ctx = amdgpu_ctx_get(filp->driver_priv, wait->in.ctx_id);
|
|
if (ctx == NULL)
|
|
return -EINVAL;
|
|
|
|
r = amdgpu_queue_mgr_map(adev, &ctx->queue_mgr,
|
|
wait->in.ip_type, wait->in.ip_instance,
|
|
wait->in.ring, &ring);
|
|
if (r) {
|
|
amdgpu_ctx_put(ctx);
|
|
return r;
|
|
}
|
|
|
|
fence = amdgpu_ctx_get_fence(ctx, ring, wait->in.handle);
|
|
if (IS_ERR(fence))
|
|
r = PTR_ERR(fence);
|
|
else if (fence) {
|
|
r = dma_fence_wait_timeout(fence, true, timeout);
|
|
if (r > 0 && fence->error)
|
|
r = fence->error;
|
|
dma_fence_put(fence);
|
|
} else
|
|
r = 1;
|
|
|
|
amdgpu_ctx_put(ctx);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
memset(wait, 0, sizeof(*wait));
|
|
wait->out.status = (r == 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_cs_get_fence - helper to get fence from drm_amdgpu_fence
|
|
*
|
|
* @adev: amdgpu device
|
|
* @filp: file private
|
|
* @user: drm_amdgpu_fence copied from user space
|
|
*/
|
|
static struct dma_fence *amdgpu_cs_get_fence(struct amdgpu_device *adev,
|
|
struct drm_file *filp,
|
|
struct drm_amdgpu_fence *user)
|
|
{
|
|
struct amdgpu_ring *ring;
|
|
struct amdgpu_ctx *ctx;
|
|
struct dma_fence *fence;
|
|
int r;
|
|
|
|
ctx = amdgpu_ctx_get(filp->driver_priv, user->ctx_id);
|
|
if (ctx == NULL)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
r = amdgpu_queue_mgr_map(adev, &ctx->queue_mgr, user->ip_type,
|
|
user->ip_instance, user->ring, &ring);
|
|
if (r) {
|
|
amdgpu_ctx_put(ctx);
|
|
return ERR_PTR(r);
|
|
}
|
|
|
|
fence = amdgpu_ctx_get_fence(ctx, ring, user->seq_no);
|
|
amdgpu_ctx_put(ctx);
|
|
|
|
return fence;
|
|
}
|
|
|
|
int amdgpu_cs_fence_to_handle_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *filp)
|
|
{
|
|
struct amdgpu_device *adev = dev->dev_private;
|
|
union drm_amdgpu_fence_to_handle *info = data;
|
|
struct dma_fence *fence;
|
|
struct drm_syncobj *syncobj;
|
|
struct sync_file *sync_file;
|
|
int fd, r;
|
|
|
|
fence = amdgpu_cs_get_fence(adev, filp, &info->in.fence);
|
|
if (IS_ERR(fence))
|
|
return PTR_ERR(fence);
|
|
|
|
switch (info->in.what) {
|
|
case AMDGPU_FENCE_TO_HANDLE_GET_SYNCOBJ:
|
|
r = drm_syncobj_create(&syncobj, 0, fence);
|
|
dma_fence_put(fence);
|
|
if (r)
|
|
return r;
|
|
r = drm_syncobj_get_handle(filp, syncobj, &info->out.handle);
|
|
drm_syncobj_put(syncobj);
|
|
return r;
|
|
|
|
case AMDGPU_FENCE_TO_HANDLE_GET_SYNCOBJ_FD:
|
|
r = drm_syncobj_create(&syncobj, 0, fence);
|
|
dma_fence_put(fence);
|
|
if (r)
|
|
return r;
|
|
r = drm_syncobj_get_fd(syncobj, (int*)&info->out.handle);
|
|
drm_syncobj_put(syncobj);
|
|
return r;
|
|
|
|
case AMDGPU_FENCE_TO_HANDLE_GET_SYNC_FILE_FD:
|
|
fd = get_unused_fd_flags(O_CLOEXEC);
|
|
if (fd < 0) {
|
|
dma_fence_put(fence);
|
|
return fd;
|
|
}
|
|
|
|
sync_file = sync_file_create(fence);
|
|
dma_fence_put(fence);
|
|
if (!sync_file) {
|
|
put_unused_fd(fd);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fd_install(fd, sync_file->file);
|
|
info->out.handle = fd;
|
|
return 0;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* amdgpu_cs_wait_all_fence - wait on all fences to signal
|
|
*
|
|
* @adev: amdgpu device
|
|
* @filp: file private
|
|
* @wait: wait parameters
|
|
* @fences: array of drm_amdgpu_fence
|
|
*/
|
|
static int amdgpu_cs_wait_all_fences(struct amdgpu_device *adev,
|
|
struct drm_file *filp,
|
|
union drm_amdgpu_wait_fences *wait,
|
|
struct drm_amdgpu_fence *fences)
|
|
{
|
|
uint32_t fence_count = wait->in.fence_count;
|
|
unsigned int i;
|
|
long r = 1;
|
|
|
|
for (i = 0; i < fence_count; i++) {
|
|
struct dma_fence *fence;
|
|
unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout_ns);
|
|
|
|
fence = amdgpu_cs_get_fence(adev, filp, &fences[i]);
|
|
if (IS_ERR(fence))
|
|
return PTR_ERR(fence);
|
|
else if (!fence)
|
|
continue;
|
|
|
|
r = dma_fence_wait_timeout(fence, true, timeout);
|
|
dma_fence_put(fence);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (r == 0)
|
|
break;
|
|
|
|
if (fence->error)
|
|
return fence->error;
|
|
}
|
|
|
|
memset(wait, 0, sizeof(*wait));
|
|
wait->out.status = (r > 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_cs_wait_any_fence - wait on any fence to signal
|
|
*
|
|
* @adev: amdgpu device
|
|
* @filp: file private
|
|
* @wait: wait parameters
|
|
* @fences: array of drm_amdgpu_fence
|
|
*/
|
|
static int amdgpu_cs_wait_any_fence(struct amdgpu_device *adev,
|
|
struct drm_file *filp,
|
|
union drm_amdgpu_wait_fences *wait,
|
|
struct drm_amdgpu_fence *fences)
|
|
{
|
|
unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout_ns);
|
|
uint32_t fence_count = wait->in.fence_count;
|
|
uint32_t first = ~0;
|
|
struct dma_fence **array;
|
|
unsigned int i;
|
|
long r;
|
|
|
|
/* Prepare the fence array */
|
|
array = kcalloc(fence_count, sizeof(struct dma_fence *), GFP_KERNEL);
|
|
|
|
if (array == NULL)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < fence_count; i++) {
|
|
struct dma_fence *fence;
|
|
|
|
fence = amdgpu_cs_get_fence(adev, filp, &fences[i]);
|
|
if (IS_ERR(fence)) {
|
|
r = PTR_ERR(fence);
|
|
goto err_free_fence_array;
|
|
} else if (fence) {
|
|
array[i] = fence;
|
|
} else { /* NULL, the fence has been already signaled */
|
|
r = 1;
|
|
first = i;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
r = dma_fence_wait_any_timeout(array, fence_count, true, timeout,
|
|
&first);
|
|
if (r < 0)
|
|
goto err_free_fence_array;
|
|
|
|
out:
|
|
memset(wait, 0, sizeof(*wait));
|
|
wait->out.status = (r > 0);
|
|
wait->out.first_signaled = first;
|
|
|
|
if (first < fence_count && array[first])
|
|
r = array[first]->error;
|
|
else
|
|
r = 0;
|
|
|
|
err_free_fence_array:
|
|
for (i = 0; i < fence_count; i++)
|
|
dma_fence_put(array[i]);
|
|
kfree(array);
|
|
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_cs_wait_fences_ioctl - wait for multiple command submissions to finish
|
|
*
|
|
* @dev: drm device
|
|
* @data: data from userspace
|
|
* @filp: file private
|
|
*/
|
|
int amdgpu_cs_wait_fences_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *filp)
|
|
{
|
|
struct amdgpu_device *adev = dev->dev_private;
|
|
union drm_amdgpu_wait_fences *wait = data;
|
|
uint32_t fence_count = wait->in.fence_count;
|
|
struct drm_amdgpu_fence *fences_user;
|
|
struct drm_amdgpu_fence *fences;
|
|
int r;
|
|
|
|
/* Get the fences from userspace */
|
|
fences = kmalloc_array(fence_count, sizeof(struct drm_amdgpu_fence),
|
|
GFP_KERNEL);
|
|
if (fences == NULL)
|
|
return -ENOMEM;
|
|
|
|
fences_user = u64_to_user_ptr(wait->in.fences);
|
|
if (copy_from_user(fences, fences_user,
|
|
sizeof(struct drm_amdgpu_fence) * fence_count)) {
|
|
r = -EFAULT;
|
|
goto err_free_fences;
|
|
}
|
|
|
|
if (wait->in.wait_all)
|
|
r = amdgpu_cs_wait_all_fences(adev, filp, wait, fences);
|
|
else
|
|
r = amdgpu_cs_wait_any_fence(adev, filp, wait, fences);
|
|
|
|
err_free_fences:
|
|
kfree(fences);
|
|
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_cs_find_bo_va - find bo_va for VM address
|
|
*
|
|
* @parser: command submission parser context
|
|
* @addr: VM address
|
|
* @bo: resulting BO of the mapping found
|
|
*
|
|
* Search the buffer objects in the command submission context for a certain
|
|
* virtual memory address. Returns allocation structure when found, NULL
|
|
* otherwise.
|
|
*/
|
|
int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
|
|
uint64_t addr, struct amdgpu_bo **bo,
|
|
struct amdgpu_bo_va_mapping **map)
|
|
{
|
|
struct amdgpu_fpriv *fpriv = parser->filp->driver_priv;
|
|
struct ttm_operation_ctx ctx = { false, false };
|
|
struct amdgpu_vm *vm = &fpriv->vm;
|
|
struct amdgpu_bo_va_mapping *mapping;
|
|
int r;
|
|
|
|
addr /= AMDGPU_GPU_PAGE_SIZE;
|
|
|
|
mapping = amdgpu_vm_bo_lookup_mapping(vm, addr);
|
|
if (!mapping || !mapping->bo_va || !mapping->bo_va->base.bo)
|
|
return -EINVAL;
|
|
|
|
*bo = mapping->bo_va->base.bo;
|
|
*map = mapping;
|
|
|
|
/* Double check that the BO is reserved by this CS */
|
|
if (READ_ONCE((*bo)->tbo.resv->lock.ctx) != &parser->ticket)
|
|
return -EINVAL;
|
|
|
|
if (!((*bo)->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)) {
|
|
(*bo)->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
|
|
amdgpu_ttm_placement_from_domain(*bo, (*bo)->allowed_domains);
|
|
r = ttm_bo_validate(&(*bo)->tbo, &(*bo)->placement, &ctx);
|
|
if (r)
|
|
return r;
|
|
}
|
|
|
|
return amdgpu_ttm_alloc_gart(&(*bo)->tbo);
|
|
}
|