Move the job of creating an input/exec fences (from a file descriptor) out of i915_gem_do_execbuffer.
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Signed-off-by: Matthew Brost matthew.brost@intel.com --- .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 75 +++++++++++-------- 1 file changed, 43 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 70d352fc543f..0416bcb551b0 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -3146,11 +3146,12 @@ static int i915_gem_do_execbuffer(struct drm_device *dev, struct drm_file *file, struct drm_i915_gem_execbuffer2 *args, - struct drm_i915_gem_exec_object2 *exec) + struct drm_i915_gem_exec_object2 *exec, + struct dma_fence *in_fence, + struct dma_fence *exec_fence) { struct drm_i915_private *i915 = to_i915(dev); struct i915_execbuffer eb; - struct dma_fence *in_fence = NULL; struct sync_file *out_fence = NULL; struct i915_vma *batch; int out_fence_fd = -1; @@ -3197,25 +3198,10 @@ i915_gem_do_execbuffer(struct drm_device *dev, if (err) goto err_ext;
-#define IN_FENCES (I915_EXEC_FENCE_IN | I915_EXEC_FENCE_SUBMIT) - if (args->flags & IN_FENCES) { - if ((args->flags & IN_FENCES) == IN_FENCES) - return -EINVAL; - - in_fence = sync_file_get_fence(lower_32_bits(args->rsvd2)); - if (!in_fence) { - err = -EINVAL; - goto err_ext; - } - } -#undef IN_FENCES - if (args->flags & I915_EXEC_FENCE_OUT) { out_fence_fd = get_unused_fd_flags(O_CLOEXEC); - if (out_fence_fd < 0) { - err = out_fence_fd; - goto err_in_fence; - } + if (out_fence_fd < 0) + goto err_ext; }
err = eb_create(&eb); @@ -3277,13 +3263,16 @@ i915_gem_do_execbuffer(struct drm_device *dev, goto err_ext; }
+ if (exec_fence) { + err = i915_request_await_execution(eb.request, + exec_fence); + if (err < 0) + goto err_request; + } + if (in_fence) { - if (args->flags & I915_EXEC_FENCE_SUBMIT) - err = i915_request_await_execution(eb.request, - in_fence); - else - err = i915_request_await_dma_fence(eb.request, - in_fence); + err = i915_request_await_dma_fence(eb.request, + in_fence); if (err < 0) goto err_request; } @@ -3363,8 +3352,6 @@ i915_gem_do_execbuffer(struct drm_device *dev, err_out_fence: if (out_fence_fd != -1) put_unused_fd(out_fence_fd); -err_in_fence: - dma_fence_put(in_fence); err_ext: put_fence_array(eb.fences, eb.num_fences); return err; @@ -3395,6 +3382,8 @@ i915_gem_execbuffer2_ioctl(struct drm_device *dev, void *data, struct drm_i915_private *i915 = to_i915(dev); struct drm_i915_gem_execbuffer2 *args = data; struct drm_i915_gem_exec_object2 *exec2_list; + struct dma_fence *in_fence = NULL; + struct dma_fence *exec_fence = NULL; const size_t count = args->buffer_count; int err;
@@ -3419,13 +3408,33 @@ i915_gem_execbuffer2_ioctl(struct drm_device *dev, void *data, if (err) return err;
+ if (args->flags & I915_EXEC_FENCE_IN) { + in_fence = sync_file_get_fence(lower_32_bits(args->rsvd2)); + if (!in_fence) + return -EINVAL; + } + + if (args->flags & I915_EXEC_FENCE_SUBMIT) { + if (in_fence) { + err = -EINVAL; + goto err_exec_fence; + } + + exec_fence = sync_file_get_fence(lower_32_bits(args->rsvd2)); + if (!exec_fence) { + err = -EINVAL; + goto err_exec_fence; + } + } + /* Allocate extra slots for use by the command parser */ exec2_list = kvmalloc_array(count + 2, eb_element_size(), __GFP_NOWARN | GFP_KERNEL); if (exec2_list == NULL) { drm_dbg(&i915->drm, "Failed to allocate exec list for %zd buffers\n", count); - return -ENOMEM; + err = -ENOMEM; + goto err_alloc; } if (copy_from_user(exec2_list, u64_to_user_ptr(args->buffers_ptr), @@ -3435,7 +3444,8 @@ i915_gem_execbuffer2_ioctl(struct drm_device *dev, void *data, goto err_copy; }
- err = i915_gem_do_execbuffer(dev, file, args, exec2_list); + err = i915_gem_do_execbuffer(dev, file, args, exec2_list, in_fence, + exec_fence);
/* * Now that we have begun execution of the batchbuffer, we ignore @@ -3476,12 +3486,13 @@ end:; }
args->flags &= ~__I915_EXEC_UNKNOWN_FLAGS; - kvfree(exec2_list); - - return err;
err_copy: kvfree(exec2_list); +err_alloc: + dma_fence_put(exec_fence); +err_exec_fence: + dma_fence_put(in_fence);
return err; }