diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_rd.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_rd.c | 94 |
1 files changed, 51 insertions, 43 deletions
diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c index db2f847c8535..54493a94dcb7 100644 --- a/drivers/gpu/drm/msm/msm_rd.c +++ b/drivers/gpu/drm/msm/msm_rd.c @@ -83,15 +83,10 @@ struct msm_rd_state { bool open; - /* current submit to read out: */ - struct msm_gem_submit *submit; - /* fifo access is synchronized on the producer side by - * gpu->lock held by submit code (otherwise we could - * end up w/ cmds logged in different order than they - * were executed). And read_lock synchronizes the reads + * write_lock. And read_lock synchronizes the reads */ - struct mutex read_lock; + struct mutex read_lock, write_lock; wait_queue_head_t fifo_event; struct circ_buf fifo; @@ -232,7 +227,6 @@ static const struct file_operations rd_debugfs_fops = { .owner = THIS_MODULE, .open = rd_open, .read = rd_read, - .llseek = no_llseek, .release = rd_release, }; @@ -243,6 +237,7 @@ static void rd_cleanup(struct msm_rd_state *rd) return; mutex_destroy(&rd->read_lock); + mutex_destroy(&rd->write_lock); kfree(rd); } @@ -258,6 +253,7 @@ static struct msm_rd_state *rd_init(struct drm_minor *minor, const char *name) rd->fifo.buf = rd->buf; mutex_init(&rd->read_lock); + mutex_init(&rd->write_lock); init_waitqueue_head(&rd->fifo_event); @@ -273,6 +269,9 @@ int msm_rd_debugfs_init(struct drm_minor *minor) struct msm_rd_state *rd; int ret; + if (!priv->gpu_pdev) + return 0; + /* only create on first minor: */ if (priv->rd) return 0; @@ -309,21 +308,11 @@ void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) priv->hangrd = NULL; } -static void snapshot_buf(struct msm_rd_state *rd, - struct msm_gem_submit *submit, int idx, - uint64_t iova, uint32_t size, bool full) +static void snapshot_buf(struct msm_rd_state *rd, struct drm_gem_object *obj, + uint64_t iova, bool full, size_t offset, size_t size) { - struct msm_gem_object *obj = submit->bos[idx].obj; - unsigned offset = 0; const char *buf; - if (iova) { - offset = iova - submit->bos[idx].iova; - } else { - iova = submit->bos[idx].iova; - size = obj->base.size; - } - /* * Always write the GPUADDR header so can get a complete list of all the * buffers in the cmd @@ -334,29 +323,22 @@ static void snapshot_buf(struct msm_rd_state *rd, if (!full) return; - /* But only dump the contents of buffers marked READ */ - if (!(submit->bos[idx].flags & MSM_SUBMIT_BO_READ)) - return; - - msm_gem_lock(&obj->base); - buf = msm_gem_get_vaddr_active(&obj->base); + buf = msm_gem_get_vaddr_active(obj); if (IS_ERR(buf)) - goto out_unlock; + return; buf += offset; rd_write_section(rd, RD_BUFFER_CONTENTS, buf, size); - msm_gem_put_vaddr_locked(&obj->base); - -out_unlock: - msm_gem_unlock(&obj->base); + msm_gem_put_vaddr_locked(obj); } /* called under gpu->lock */ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, const char *fmt, ...) { + extern bool rd_full; struct task_struct *task; char msg[256]; int i, n; @@ -364,10 +346,7 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, if (!rd->open) return; - /* writing into fifo is serialized by caller, and - * rd->read_lock is used to serialize the reads - */ - WARN_ON(!mutex_is_locked(&submit->gpu->lock)); + mutex_lock(&rd->write_lock); if (fmt) { va_list args; @@ -393,16 +372,43 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, rd_write_section(rd, RD_CMD, msg, ALIGN(n, 4)); - for (i = 0; i < submit->nr_bos; i++) - snapshot_buf(rd, submit, i, 0, 0, should_dump(submit, i)); + if (msm_context_is_vmbind(submit->queue->ctx)) { + struct drm_gpuva *vma; - for (i = 0; i < submit->nr_cmds; i++) { - uint32_t szd = submit->cmd[i].size; /* in dwords */ + drm_gpuvm_resv_assert_held(submit->vm); + + drm_gpuvm_for_each_va (vma, submit->vm) { + bool dump = rd_full || (vma->flags & MSM_VMA_DUMP); + + /* Skip MAP_NULL/PRR VMAs: */ + if (!vma->gem.obj) + continue; + + snapshot_buf(rd, vma->gem.obj, vma->va.addr, dump, + vma->gem.offset, vma->va.range); + } + + } else { + for (i = 0; i < submit->nr_bos; i++) { + struct drm_gem_object *obj = submit->bos[i].obj; + bool dump = rd_full || (submit->bos[i].flags & MSM_SUBMIT_BO_DUMP); + + snapshot_buf(rd, obj, submit->bos[i].iova, dump, 0, obj->size); + } - /* snapshot cmdstream bo's (if we haven't already): */ - if (!should_dump(submit, i)) { - snapshot_buf(rd, submit, submit->cmd[i].idx, - submit->cmd[i].iova, szd * 4, true); + for (i = 0; i < submit->nr_cmds; i++) { + uint32_t szd = submit->cmd[i].size; /* in dwords */ + int idx = submit->cmd[i].idx; + bool dump = rd_full || (submit->bos[idx].flags & MSM_SUBMIT_BO_DUMP); + + /* snapshot cmdstream bo's (if we haven't already): */ + if (!dump) { + struct drm_gem_object *obj = submit->bos[idx].obj; + size_t offset = submit->cmd[i].iova - submit->bos[idx].iova; + + snapshot_buf(rd, obj, submit->cmd[i].iova, true, + offset, szd * 4); + } } } @@ -424,5 +430,7 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, break; } } + + mutex_unlock(&rd->write_lock); } #endif |