diff options
Diffstat (limited to 'drivers/gpu/drm/lima/lima_sched.c')
| -rw-r--r-- | drivers/gpu/drm/lima/lima_sched.c | 193 |
1 files changed, 178 insertions, 15 deletions
diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c index 3886999b4533..e6cefda00279 100644 --- a/drivers/gpu/drm/lima/lima_sched.c +++ b/drivers/gpu/drm/lima/lima_sched.c @@ -3,14 +3,17 @@ #include <linux/kthread.h> #include <linux/slab.h> -#include <linux/xarray.h> +#include <linux/vmalloc.h> +#include <linux/pm_runtime.h> +#include "lima_devfreq.h" #include "lima_drv.h" #include "lima_sched.h" #include "lima_vm.h" #include "lima_mmu.h" #include "lima_l2_cache.h" #include "lima_gem.h" +#include "lima_trace.h" struct lima_fence { struct dma_fence base; @@ -176,6 +179,7 @@ struct dma_fence *lima_sched_context_queue_task(struct lima_sched_context *conte { struct dma_fence *fence = dma_fence_get(&task->base.s_fence->finished); + trace_lima_task_submit(task); drm_sched_entity_push_job(&task->base, &context->base); return fence; } @@ -191,14 +195,36 @@ static struct dma_fence *lima_sched_dependency(struct drm_sched_job *job, return NULL; } +static int lima_pm_busy(struct lima_device *ldev) +{ + int ret; + + /* resume GPU if it has been suspended by runtime PM */ + ret = pm_runtime_get_sync(ldev->dev); + if (ret < 0) + return ret; + + lima_devfreq_record_busy(&ldev->devfreq); + return 0; +} + +static void lima_pm_idle(struct lima_device *ldev) +{ + lima_devfreq_record_idle(&ldev->devfreq); + + /* GPU can do auto runtime suspend */ + pm_runtime_mark_last_busy(ldev->dev); + pm_runtime_put_autosuspend(ldev->dev); +} + static struct dma_fence *lima_sched_run_job(struct drm_sched_job *job) { struct lima_sched_task *task = to_lima_task(job); struct lima_sched_pipe *pipe = to_lima_pipe(job->sched); + struct lima_device *ldev = pipe->ldev; struct lima_fence *fence; struct dma_fence *ret; - struct lima_vm *vm = NULL, *last_vm = NULL; - int i; + int i, err; /* after GPU reset */ if (job->s_fence->finished.error < 0) @@ -207,6 +233,13 @@ static struct dma_fence *lima_sched_run_job(struct drm_sched_job *job) fence = lima_fence_create(pipe); if (!fence) return NULL; + + err = lima_pm_busy(ldev); + if (err < 0) { + dma_fence_put(&fence->base); + return NULL; + } + task->fence = &fence->base; /* for caller usage of the fence, otherwise irq handler @@ -234,21 +267,17 @@ static struct dma_fence *lima_sched_run_job(struct drm_sched_job *job) for (i = 0; i < pipe->num_l2_cache; i++) lima_l2_cache_flush(pipe->l2_cache[i]); - if (task->vm != pipe->current_vm) { - vm = lima_vm_get(task->vm); - last_vm = pipe->current_vm; - pipe->current_vm = task->vm; - } + lima_vm_put(pipe->current_vm); + pipe->current_vm = lima_vm_get(task->vm); if (pipe->bcast_mmu) - lima_mmu_switch_vm(pipe->bcast_mmu, vm); + lima_mmu_switch_vm(pipe->bcast_mmu, pipe->current_vm); else { for (i = 0; i < pipe->num_mmu; i++) - lima_mmu_switch_vm(pipe->mmu[i], vm); + lima_mmu_switch_vm(pipe->mmu[i], pipe->current_vm); } - if (last_vm) - lima_vm_put(last_vm); + trace_lima_task_run(task); pipe->error = false; pipe->task_run(pipe, task); @@ -256,10 +285,139 @@ static struct dma_fence *lima_sched_run_job(struct drm_sched_job *job) return task->fence; } +static void lima_sched_build_error_task_list(struct lima_sched_task *task) +{ + struct lima_sched_error_task *et; + struct lima_sched_pipe *pipe = to_lima_pipe(task->base.sched); + struct lima_ip *ip = pipe->processor[0]; + int pipe_id = ip->id == lima_ip_gp ? lima_pipe_gp : lima_pipe_pp; + struct lima_device *dev = ip->dev; + struct lima_sched_context *sched_ctx = + container_of(task->base.entity, + struct lima_sched_context, base); + struct lima_ctx *ctx = + container_of(sched_ctx, struct lima_ctx, context[pipe_id]); + struct lima_dump_task *dt; + struct lima_dump_chunk *chunk; + struct lima_dump_chunk_pid *pid_chunk; + struct lima_dump_chunk_buffer *buffer_chunk; + u32 size, task_size, mem_size; + int i; + + mutex_lock(&dev->error_task_list_lock); + + if (dev->dump.num_tasks >= lima_max_error_tasks) { + dev_info(dev->dev, "fail to save task state from %s pid %d: " + "error task list is full\n", ctx->pname, ctx->pid); + goto out; + } + + /* frame chunk */ + size = sizeof(struct lima_dump_chunk) + pipe->frame_size; + /* process name chunk */ + size += sizeof(struct lima_dump_chunk) + sizeof(ctx->pname); + /* pid chunk */ + size += sizeof(struct lima_dump_chunk); + /* buffer chunks */ + for (i = 0; i < task->num_bos; i++) { + struct lima_bo *bo = task->bos[i]; + + size += sizeof(struct lima_dump_chunk); + size += bo->heap_size ? bo->heap_size : lima_bo_size(bo); + } + + task_size = size + sizeof(struct lima_dump_task); + mem_size = task_size + sizeof(*et); + et = kvmalloc(mem_size, GFP_KERNEL); + if (!et) { + dev_err(dev->dev, "fail to alloc task dump buffer of size %x\n", + mem_size); + goto out; + } + + et->data = et + 1; + et->size = task_size; + + dt = et->data; + memset(dt, 0, sizeof(*dt)); + dt->id = pipe_id; + dt->size = size; + + chunk = (struct lima_dump_chunk *)(dt + 1); + memset(chunk, 0, sizeof(*chunk)); + chunk->id = LIMA_DUMP_CHUNK_FRAME; + chunk->size = pipe->frame_size; + memcpy(chunk + 1, task->frame, pipe->frame_size); + dt->num_chunks++; + + chunk = (void *)(chunk + 1) + chunk->size; + memset(chunk, 0, sizeof(*chunk)); + chunk->id = LIMA_DUMP_CHUNK_PROCESS_NAME; + chunk->size = sizeof(ctx->pname); + memcpy(chunk + 1, ctx->pname, sizeof(ctx->pname)); + dt->num_chunks++; + + pid_chunk = (void *)(chunk + 1) + chunk->size; + memset(pid_chunk, 0, sizeof(*pid_chunk)); + pid_chunk->id = LIMA_DUMP_CHUNK_PROCESS_ID; + pid_chunk->pid = ctx->pid; + dt->num_chunks++; + + buffer_chunk = (void *)(pid_chunk + 1) + pid_chunk->size; + for (i = 0; i < task->num_bos; i++) { + struct lima_bo *bo = task->bos[i]; + void *data; + + memset(buffer_chunk, 0, sizeof(*buffer_chunk)); + buffer_chunk->id = LIMA_DUMP_CHUNK_BUFFER; + buffer_chunk->va = lima_vm_get_va(task->vm, bo); + + if (bo->heap_size) { + buffer_chunk->size = bo->heap_size; + + data = vmap(bo->base.pages, bo->heap_size >> PAGE_SHIFT, + VM_MAP, pgprot_writecombine(PAGE_KERNEL)); + if (!data) { + kvfree(et); + goto out; + } + + memcpy(buffer_chunk + 1, data, buffer_chunk->size); + + vunmap(data); + } else { + buffer_chunk->size = lima_bo_size(bo); + + data = drm_gem_shmem_vmap(&bo->base.base); + if (IS_ERR_OR_NULL(data)) { + kvfree(et); + goto out; + } + + memcpy(buffer_chunk + 1, data, buffer_chunk->size); + + drm_gem_shmem_vunmap(&bo->base.base, data); + } + + buffer_chunk = (void *)(buffer_chunk + 1) + buffer_chunk->size; + dt->num_chunks++; + } + + list_add(&et->list, &dev->error_task_list); + dev->dump.size += et->size; + dev->dump.num_tasks++; + + dev_info(dev->dev, "save error task state success\n"); + +out: + mutex_unlock(&dev->error_task_list_lock); +} + static void lima_sched_timedout_job(struct drm_sched_job *job) { struct lima_sched_pipe *pipe = to_lima_pipe(job->sched); struct lima_sched_task *task = to_lima_task(job); + struct lima_device *ldev = pipe->ldev; if (!pipe->error) DRM_ERROR("lima job timeout\n"); @@ -268,6 +426,8 @@ static void lima_sched_timedout_job(struct drm_sched_job *job) drm_sched_increase_karma(&task->base); + lima_sched_build_error_task_list(task); + pipe->task_error(pipe); if (pipe->bcast_mmu) @@ -279,12 +439,12 @@ static void lima_sched_timedout_job(struct drm_sched_job *job) lima_mmu_page_fault_resume(pipe->mmu[i]); } - if (pipe->current_vm) - lima_vm_put(pipe->current_vm); - + lima_vm_put(pipe->current_vm); pipe->current_vm = NULL; pipe->current_task = NULL; + lima_pm_idle(ldev); + drm_sched_resubmit_jobs(&pipe->base); drm_sched_start(&pipe->base, true); } @@ -355,6 +515,7 @@ void lima_sched_pipe_fini(struct lima_sched_pipe *pipe) void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe) { struct lima_sched_task *task = pipe->current_task; + struct lima_device *ldev = pipe->ldev; if (pipe->error) { if (task && task->recoverable) @@ -364,5 +525,7 @@ void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe) } else { pipe->task_fini(pipe); dma_fence_signal(task->fence); + + lima_pm_idle(ldev); } } |