From: Eric Anholt Date: Mon, 1 Apr 2019 22:26:35 +0000 (-0700) Subject: drm/lima: Use the drm_gem_fence_array_add helpers for our deps. X-Git-Tag: v5.15~303^2~28^2~5438 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f3fb20074e02865e1724c586eae46a77a7f2266b;p=platform%2Fkernel%2Flinux-starfive.git drm/lima: Use the drm_gem_fence_array_add helpers for our deps. It's a pretty direct port of what I did for v3d. Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20190401222635.25013-8-eric@anholt.net Reviewed-and-tested-by: Qiang Yu --- diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c index 1d69498..477c0f7 100644 --- a/drivers/gpu/drm/lima/lima_gem.c +++ b/drivers/gpu/drm/lima/lima_gem.c @@ -145,40 +145,7 @@ static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo, if (explicit) return 0; - /* implicit sync use bo fence in resv obj */ - if (write) { - unsigned nr_fences; - struct dma_fence **fences; - int i; - - err = reservation_object_get_fences_rcu( - bo->gem.resv, NULL, &nr_fences, &fences); - if (err || !nr_fences) - return err; - - for (i = 0; i < nr_fences; i++) { - err = lima_sched_task_add_dep(task, fences[i]); - if (err) - break; - } - - /* for error case free remaining fences */ - for ( ; i < nr_fences; i++) - dma_fence_put(fences[i]); - - kfree(fences); - } else { - struct dma_fence *fence; - - fence = reservation_object_get_excl_rcu(bo->gem.resv); - if (fence) { - err = lima_sched_task_add_dep(task, fence); - if (err) - dma_fence_put(fence); - } - } - - return err; + return drm_gem_fence_array_add_implicit(&task->deps, &bo->gem, write); } static int lima_gem_lock_bos(struct lima_bo **bos, u32 nr_bos, @@ -251,7 +218,7 @@ static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit) if (err) return err; - err = lima_sched_task_add_dep(submit->task, fence); + err = drm_gem_fence_array_add(&submit->task->deps, fence); if (err) { dma_fence_put(fence); return err; diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c index 97bd9c1..e253d03 100644 --- a/drivers/gpu/drm/lima/lima_sched.c +++ b/drivers/gpu/drm/lima/lima_sched.c @@ -3,6 +3,7 @@ #include #include +#include #include "lima_drv.h" #include "lima_sched.h" @@ -126,19 +127,24 @@ int lima_sched_task_init(struct lima_sched_task *task, task->num_bos = num_bos; task->vm = lima_vm_get(vm); + + xa_init_flags(&task->deps, XA_FLAGS_ALLOC); + return 0; } void lima_sched_task_fini(struct lima_sched_task *task) { + struct dma_fence *fence; + unsigned long index; int i; drm_sched_job_cleanup(&task->base); - for (i = 0; i < task->num_dep; i++) - dma_fence_put(task->dep[i]); - - kfree(task->dep); + xa_for_each(&task->deps, index, fence) { + dma_fence_put(fence); + } + xa_destroy(&task->deps); if (task->bos) { for (i = 0; i < task->num_bos; i++) @@ -149,42 +155,6 @@ void lima_sched_task_fini(struct lima_sched_task *task) lima_vm_put(task->vm); } -int lima_sched_task_add_dep(struct lima_sched_task *task, struct dma_fence *fence) -{ - int i, new_dep = 4; - - /* same context's fence is definitly earlier then this task */ - if (fence->context == task->base.s_fence->finished.context) { - dma_fence_put(fence); - return 0; - } - - if (task->dep && task->num_dep == task->max_dep) - new_dep = task->max_dep * 2; - - if (task->max_dep < new_dep) { - void *dep = krealloc(task->dep, sizeof(*task->dep) * new_dep, GFP_KERNEL); - - if (!dep) - return -ENOMEM; - - task->max_dep = new_dep; - task->dep = dep; - } - - for (i = 0; i < task->num_dep; i++) { - if (task->dep[i]->context == fence->context && - dma_fence_is_later(fence, task->dep[i])) { - dma_fence_put(task->dep[i]); - task->dep[i] = fence; - return 0; - } - } - - task->dep[task->num_dep++] = fence; - return 0; -} - int lima_sched_context_init(struct lima_sched_pipe *pipe, struct lima_sched_context *context, atomic_t *guilty) @@ -213,21 +183,9 @@ static struct dma_fence *lima_sched_dependency(struct drm_sched_job *job, struct drm_sched_entity *entity) { struct lima_sched_task *task = to_lima_task(job); - int i; - - for (i = 0; i < task->num_dep; i++) { - struct dma_fence *fence = task->dep[i]; - - if (!task->dep[i]) - continue; - - task->dep[i] = NULL; - if (!dma_fence_is_signaled(fence)) - return fence; - - dma_fence_put(fence); - } + if (!xa_empty(&task->deps)) + return xa_erase(&task->deps, task->last_dep++); return NULL; } diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h index b017cfa..928af91 100644 --- a/drivers/gpu/drm/lima/lima_sched.h +++ b/drivers/gpu/drm/lima/lima_sched.h @@ -14,9 +14,8 @@ struct lima_sched_task { struct lima_vm *vm; void *frame; - struct dma_fence **dep; - int num_dep; - int max_dep; + struct xarray deps; + unsigned long last_dep; struct lima_bo **bos; int num_bos; @@ -78,7 +77,6 @@ int lima_sched_task_init(struct lima_sched_task *task, struct lima_bo **bos, int num_bos, struct lima_vm *vm); void lima_sched_task_fini(struct lima_sched_task *task); -int lima_sched_task_add_dep(struct lima_sched_task *task, struct dma_fence *fence); int lima_sched_context_init(struct lima_sched_pipe *pipe, struct lima_sched_context *context,