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![Maxime Ripard](/assets/img/avatar_default.png)
The TV mode property has been around for a while now to select and get the current TV mode output on an analog TV connector. Despite that property name being generic, its content isn't and has been driver-specific which makes it hard to build any generic behaviour on top of it, both in kernel and user-space. Let's create a new enum tv norm property, that can contain any of the analog TV standards currently supported by kernel drivers. Each driver can then pass in a bitmask of the modes it supports, and the property creation function will filter out the modes not supported. We'll then be able to phase out the older tv mode property. Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com> Acked-in-principle-or-something-like-that-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v10-5-256dad125326@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
1453 lines
42 KiB
C
1453 lines
42 KiB
C
/*
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* Copyright (C) 2014 Red Hat
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* Copyright (C) 2014 Intel Corp.
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* Copyright (C) 2018 Intel Corp.
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* Copyright (c) 2020, The Linux Foundation. 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 shall be included in
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* all copies or substantial portions of the 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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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rob Clark <robdclark@gmail.com>
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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*/
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#include <drm/drm_atomic_uapi.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_framebuffer.h>
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#include <drm/drm_print.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_writeback.h>
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#include <drm/drm_vblank.h>
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#include <linux/dma-fence.h>
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#include <linux/uaccess.h>
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#include <linux/sync_file.h>
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#include <linux/file.h>
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#include "drm_crtc_internal.h"
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/**
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* DOC: overview
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*
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* This file contains the marshalling and demarshalling glue for the atomic UAPI
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* in all its forms: The monster ATOMIC IOCTL itself, code for GET_PROPERTY and
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* SET_PROPERTY IOCTLs. Plus interface functions for compatibility helpers and
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* drivers which have special needs to construct their own atomic updates, e.g.
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* for load detect or similar.
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*/
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/**
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* drm_atomic_set_mode_for_crtc - set mode for CRTC
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* @state: the CRTC whose incoming state to update
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* @mode: kernel-internal mode to use for the CRTC, or NULL to disable
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*
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* Set a mode (originating from the kernel) on the desired CRTC state and update
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* the enable property.
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*
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* RETURNS:
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* Zero on success, error code on failure. Cannot return -EDEADLK.
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*/
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int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state,
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const struct drm_display_mode *mode)
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{
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struct drm_crtc *crtc = state->crtc;
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struct drm_mode_modeinfo umode;
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/* Early return for no change. */
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if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0)
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return 0;
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drm_property_blob_put(state->mode_blob);
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state->mode_blob = NULL;
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if (mode) {
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struct drm_property_blob *blob;
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drm_mode_convert_to_umode(&umode, mode);
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blob = drm_property_create_blob(crtc->dev,
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sizeof(umode), &umode);
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if (IS_ERR(blob))
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return PTR_ERR(blob);
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drm_mode_copy(&state->mode, mode);
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state->mode_blob = blob;
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state->enable = true;
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drm_dbg_atomic(crtc->dev,
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"Set [MODE:%s] for [CRTC:%d:%s] state %p\n",
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mode->name, crtc->base.id, crtc->name, state);
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} else {
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memset(&state->mode, 0, sizeof(state->mode));
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state->enable = false;
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drm_dbg_atomic(crtc->dev,
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"Set [NOMODE] for [CRTC:%d:%s] state %p\n",
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crtc->base.id, crtc->name, state);
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}
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return 0;
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}
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EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc);
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/**
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* drm_atomic_set_mode_prop_for_crtc - set mode for CRTC
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* @state: the CRTC whose incoming state to update
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* @blob: pointer to blob property to use for mode
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*
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* Set a mode (originating from a blob property) on the desired CRTC state.
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* This function will take a reference on the blob property for the CRTC state,
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* and release the reference held on the state's existing mode property, if any
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* was set.
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*
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* RETURNS:
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* Zero on success, error code on failure. Cannot return -EDEADLK.
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*/
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int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
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struct drm_property_blob *blob)
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{
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struct drm_crtc *crtc = state->crtc;
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if (blob == state->mode_blob)
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return 0;
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drm_property_blob_put(state->mode_blob);
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state->mode_blob = NULL;
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memset(&state->mode, 0, sizeof(state->mode));
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if (blob) {
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int ret;
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if (blob->length != sizeof(struct drm_mode_modeinfo)) {
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drm_dbg_atomic(crtc->dev,
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"[CRTC:%d:%s] bad mode blob length: %zu\n",
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crtc->base.id, crtc->name,
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blob->length);
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return -EINVAL;
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}
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ret = drm_mode_convert_umode(crtc->dev,
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&state->mode, blob->data);
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if (ret) {
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drm_dbg_atomic(crtc->dev,
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"[CRTC:%d:%s] invalid mode (ret=%d, status=%s):\n",
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crtc->base.id, crtc->name,
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ret, drm_get_mode_status_name(state->mode.status));
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drm_mode_debug_printmodeline(&state->mode);
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return -EINVAL;
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}
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state->mode_blob = drm_property_blob_get(blob);
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state->enable = true;
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drm_dbg_atomic(crtc->dev,
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"Set [MODE:%s] for [CRTC:%d:%s] state %p\n",
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state->mode.name, crtc->base.id, crtc->name,
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state);
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} else {
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state->enable = false;
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drm_dbg_atomic(crtc->dev,
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"Set [NOMODE] for [CRTC:%d:%s] state %p\n",
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crtc->base.id, crtc->name, state);
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}
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return 0;
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}
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EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc);
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/**
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* drm_atomic_set_crtc_for_plane - set CRTC for plane
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* @plane_state: the plane whose incoming state to update
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* @crtc: CRTC to use for the plane
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*
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* Changing the assigned CRTC for a plane requires us to grab the lock and state
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* for the new CRTC, as needed. This function takes care of all these details
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* besides updating the pointer in the state object itself.
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*
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* Returns:
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* 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
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* then the w/w mutex code has detected a deadlock and the entire atomic
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* sequence must be restarted. All other errors are fatal.
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*/
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int
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drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
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struct drm_crtc *crtc)
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{
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struct drm_plane *plane = plane_state->plane;
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struct drm_crtc_state *crtc_state;
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/* Nothing to do for same crtc*/
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if (plane_state->crtc == crtc)
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return 0;
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if (plane_state->crtc) {
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crtc_state = drm_atomic_get_crtc_state(plane_state->state,
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plane_state->crtc);
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if (WARN_ON(IS_ERR(crtc_state)))
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return PTR_ERR(crtc_state);
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crtc_state->plane_mask &= ~drm_plane_mask(plane);
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}
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plane_state->crtc = crtc;
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if (crtc) {
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crtc_state = drm_atomic_get_crtc_state(plane_state->state,
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crtc);
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if (IS_ERR(crtc_state))
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return PTR_ERR(crtc_state);
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crtc_state->plane_mask |= drm_plane_mask(plane);
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}
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if (crtc)
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drm_dbg_atomic(plane->dev,
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"Link [PLANE:%d:%s] state %p to [CRTC:%d:%s]\n",
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plane->base.id, plane->name, plane_state,
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crtc->base.id, crtc->name);
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else
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drm_dbg_atomic(plane->dev,
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"Link [PLANE:%d:%s] state %p to [NOCRTC]\n",
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plane->base.id, plane->name, plane_state);
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return 0;
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}
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EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane);
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/**
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* drm_atomic_set_fb_for_plane - set framebuffer for plane
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* @plane_state: atomic state object for the plane
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* @fb: fb to use for the plane
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*
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* Changing the assigned framebuffer for a plane requires us to grab a reference
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* to the new fb and drop the reference to the old fb, if there is one. This
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* function takes care of all these details besides updating the pointer in the
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* state object itself.
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*/
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void
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drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
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struct drm_framebuffer *fb)
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{
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struct drm_plane *plane = plane_state->plane;
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if (fb)
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drm_dbg_atomic(plane->dev,
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"Set [FB:%d] for [PLANE:%d:%s] state %p\n",
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fb->base.id, plane->base.id, plane->name,
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plane_state);
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else
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drm_dbg_atomic(plane->dev,
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"Set [NOFB] for [PLANE:%d:%s] state %p\n",
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plane->base.id, plane->name, plane_state);
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drm_framebuffer_assign(&plane_state->fb, fb);
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}
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EXPORT_SYMBOL(drm_atomic_set_fb_for_plane);
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/**
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* drm_atomic_set_crtc_for_connector - set CRTC for connector
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* @conn_state: atomic state object for the connector
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* @crtc: CRTC to use for the connector
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*
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* Changing the assigned CRTC for a connector requires us to grab the lock and
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* state for the new CRTC, as needed. This function takes care of all these
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* details besides updating the pointer in the state object itself.
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*
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* Returns:
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* 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
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* then the w/w mutex code has detected a deadlock and the entire atomic
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* sequence must be restarted. All other errors are fatal.
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*/
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int
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drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
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struct drm_crtc *crtc)
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{
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struct drm_connector *connector = conn_state->connector;
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struct drm_crtc_state *crtc_state;
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if (conn_state->crtc == crtc)
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return 0;
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if (conn_state->crtc) {
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crtc_state = drm_atomic_get_new_crtc_state(conn_state->state,
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conn_state->crtc);
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crtc_state->connector_mask &=
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~drm_connector_mask(conn_state->connector);
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drm_connector_put(conn_state->connector);
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conn_state->crtc = NULL;
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}
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if (crtc) {
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crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc);
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if (IS_ERR(crtc_state))
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return PTR_ERR(crtc_state);
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crtc_state->connector_mask |=
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drm_connector_mask(conn_state->connector);
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drm_connector_get(conn_state->connector);
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conn_state->crtc = crtc;
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drm_dbg_atomic(connector->dev,
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"Link [CONNECTOR:%d:%s] state %p to [CRTC:%d:%s]\n",
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connector->base.id, connector->name,
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conn_state, crtc->base.id, crtc->name);
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} else {
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drm_dbg_atomic(connector->dev,
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"Link [CONNECTOR:%d:%s] state %p to [NOCRTC]\n",
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connector->base.id, connector->name,
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conn_state);
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}
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return 0;
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}
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EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector);
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static void set_out_fence_for_crtc(struct drm_atomic_state *state,
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struct drm_crtc *crtc, s32 __user *fence_ptr)
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{
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state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = fence_ptr;
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}
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static s32 __user *get_out_fence_for_crtc(struct drm_atomic_state *state,
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struct drm_crtc *crtc)
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{
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s32 __user *fence_ptr;
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fence_ptr = state->crtcs[drm_crtc_index(crtc)].out_fence_ptr;
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state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = NULL;
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return fence_ptr;
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}
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static int set_out_fence_for_connector(struct drm_atomic_state *state,
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struct drm_connector *connector,
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s32 __user *fence_ptr)
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{
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unsigned int index = drm_connector_index(connector);
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if (!fence_ptr)
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return 0;
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if (put_user(-1, fence_ptr))
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return -EFAULT;
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state->connectors[index].out_fence_ptr = fence_ptr;
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return 0;
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}
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static s32 __user *get_out_fence_for_connector(struct drm_atomic_state *state,
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struct drm_connector *connector)
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{
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unsigned int index = drm_connector_index(connector);
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s32 __user *fence_ptr;
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fence_ptr = state->connectors[index].out_fence_ptr;
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state->connectors[index].out_fence_ptr = NULL;
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return fence_ptr;
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}
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static int
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drm_atomic_replace_property_blob_from_id(struct drm_device *dev,
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struct drm_property_blob **blob,
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uint64_t blob_id,
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ssize_t expected_size,
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ssize_t expected_elem_size,
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bool *replaced)
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{
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struct drm_property_blob *new_blob = NULL;
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if (blob_id != 0) {
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new_blob = drm_property_lookup_blob(dev, blob_id);
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if (new_blob == NULL)
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return -EINVAL;
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if (expected_size > 0 &&
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new_blob->length != expected_size) {
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drm_property_blob_put(new_blob);
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return -EINVAL;
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}
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if (expected_elem_size > 0 &&
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new_blob->length % expected_elem_size != 0) {
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drm_property_blob_put(new_blob);
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return -EINVAL;
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}
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}
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*replaced |= drm_property_replace_blob(blob, new_blob);
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drm_property_blob_put(new_blob);
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return 0;
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}
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static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
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struct drm_crtc_state *state, struct drm_property *property,
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uint64_t val)
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{
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struct drm_device *dev = crtc->dev;
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struct drm_mode_config *config = &dev->mode_config;
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bool replaced = false;
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int ret;
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if (property == config->prop_active)
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state->active = val;
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else if (property == config->prop_mode_id) {
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struct drm_property_blob *mode =
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drm_property_lookup_blob(dev, val);
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ret = drm_atomic_set_mode_prop_for_crtc(state, mode);
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drm_property_blob_put(mode);
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return ret;
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} else if (property == config->prop_vrr_enabled) {
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state->vrr_enabled = val;
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} else if (property == config->degamma_lut_property) {
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ret = drm_atomic_replace_property_blob_from_id(dev,
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&state->degamma_lut,
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val,
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-1, sizeof(struct drm_color_lut),
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&replaced);
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state->color_mgmt_changed |= replaced;
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return ret;
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} else if (property == config->ctm_property) {
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ret = drm_atomic_replace_property_blob_from_id(dev,
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&state->ctm,
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val,
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sizeof(struct drm_color_ctm), -1,
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&replaced);
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state->color_mgmt_changed |= replaced;
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return ret;
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} else if (property == config->gamma_lut_property) {
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ret = drm_atomic_replace_property_blob_from_id(dev,
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&state->gamma_lut,
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val,
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-1, sizeof(struct drm_color_lut),
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&replaced);
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state->color_mgmt_changed |= replaced;
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return ret;
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} else if (property == config->prop_out_fence_ptr) {
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s32 __user *fence_ptr = u64_to_user_ptr(val);
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if (!fence_ptr)
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return 0;
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if (put_user(-1, fence_ptr))
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return -EFAULT;
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set_out_fence_for_crtc(state->state, crtc, fence_ptr);
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} else if (property == crtc->scaling_filter_property) {
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state->scaling_filter = val;
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} else if (crtc->funcs->atomic_set_property) {
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return crtc->funcs->atomic_set_property(crtc, state, property, val);
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} else {
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drm_dbg_atomic(crtc->dev,
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"[CRTC:%d:%s] unknown property [PROP:%d:%s]]\n",
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crtc->base.id, crtc->name,
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property->base.id, property->name);
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return -EINVAL;
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}
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return 0;
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}
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|
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static int
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drm_atomic_crtc_get_property(struct drm_crtc *crtc,
|
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const struct drm_crtc_state *state,
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struct drm_property *property, uint64_t *val)
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{
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struct drm_device *dev = crtc->dev;
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
|
|
if (property == config->prop_active)
|
|
*val = drm_atomic_crtc_effectively_active(state);
|
|
else if (property == config->prop_mode_id)
|
|
*val = (state->mode_blob) ? state->mode_blob->base.id : 0;
|
|
else if (property == config->prop_vrr_enabled)
|
|
*val = state->vrr_enabled;
|
|
else if (property == config->degamma_lut_property)
|
|
*val = (state->degamma_lut) ? state->degamma_lut->base.id : 0;
|
|
else if (property == config->ctm_property)
|
|
*val = (state->ctm) ? state->ctm->base.id : 0;
|
|
else if (property == config->gamma_lut_property)
|
|
*val = (state->gamma_lut) ? state->gamma_lut->base.id : 0;
|
|
else if (property == config->prop_out_fence_ptr)
|
|
*val = 0;
|
|
else if (property == crtc->scaling_filter_property)
|
|
*val = state->scaling_filter;
|
|
else if (crtc->funcs->atomic_get_property)
|
|
return crtc->funcs->atomic_get_property(crtc, state, property, val);
|
|
else
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int drm_atomic_plane_set_property(struct drm_plane *plane,
|
|
struct drm_plane_state *state, struct drm_file *file_priv,
|
|
struct drm_property *property, uint64_t val)
|
|
{
|
|
struct drm_device *dev = plane->dev;
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
bool replaced = false;
|
|
int ret;
|
|
|
|
if (property == config->prop_fb_id) {
|
|
struct drm_framebuffer *fb;
|
|
|
|
fb = drm_framebuffer_lookup(dev, file_priv, val);
|
|
drm_atomic_set_fb_for_plane(state, fb);
|
|
if (fb)
|
|
drm_framebuffer_put(fb);
|
|
} else if (property == config->prop_in_fence_fd) {
|
|
if (state->fence)
|
|
return -EINVAL;
|
|
|
|
if (U642I64(val) == -1)
|
|
return 0;
|
|
|
|
state->fence = sync_file_get_fence(val);
|
|
if (!state->fence)
|
|
return -EINVAL;
|
|
|
|
} else if (property == config->prop_crtc_id) {
|
|
struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
|
|
|
|
if (val && !crtc)
|
|
return -EACCES;
|
|
return drm_atomic_set_crtc_for_plane(state, crtc);
|
|
} else if (property == config->prop_crtc_x) {
|
|
state->crtc_x = U642I64(val);
|
|
} else if (property == config->prop_crtc_y) {
|
|
state->crtc_y = U642I64(val);
|
|
} else if (property == config->prop_crtc_w) {
|
|
state->crtc_w = val;
|
|
} else if (property == config->prop_crtc_h) {
|
|
state->crtc_h = val;
|
|
} else if (property == config->prop_src_x) {
|
|
state->src_x = val;
|
|
} else if (property == config->prop_src_y) {
|
|
state->src_y = val;
|
|
} else if (property == config->prop_src_w) {
|
|
state->src_w = val;
|
|
} else if (property == config->prop_src_h) {
|
|
state->src_h = val;
|
|
} else if (property == plane->alpha_property) {
|
|
state->alpha = val;
|
|
} else if (property == plane->blend_mode_property) {
|
|
state->pixel_blend_mode = val;
|
|
} else if (property == plane->rotation_property) {
|
|
if (!is_power_of_2(val & DRM_MODE_ROTATE_MASK)) {
|
|
drm_dbg_atomic(plane->dev,
|
|
"[PLANE:%d:%s] bad rotation bitmask: 0x%llx\n",
|
|
plane->base.id, plane->name, val);
|
|
return -EINVAL;
|
|
}
|
|
state->rotation = val;
|
|
} else if (property == plane->zpos_property) {
|
|
state->zpos = val;
|
|
} else if (property == plane->color_encoding_property) {
|
|
state->color_encoding = val;
|
|
} else if (property == plane->color_range_property) {
|
|
state->color_range = val;
|
|
} else if (property == config->prop_fb_damage_clips) {
|
|
ret = drm_atomic_replace_property_blob_from_id(dev,
|
|
&state->fb_damage_clips,
|
|
val,
|
|
-1,
|
|
sizeof(struct drm_rect),
|
|
&replaced);
|
|
return ret;
|
|
} else if (property == plane->scaling_filter_property) {
|
|
state->scaling_filter = val;
|
|
} else if (plane->funcs->atomic_set_property) {
|
|
return plane->funcs->atomic_set_property(plane, state,
|
|
property, val);
|
|
} else {
|
|
drm_dbg_atomic(plane->dev,
|
|
"[PLANE:%d:%s] unknown property [PROP:%d:%s]]\n",
|
|
plane->base.id, plane->name,
|
|
property->base.id, property->name);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_atomic_plane_get_property(struct drm_plane *plane,
|
|
const struct drm_plane_state *state,
|
|
struct drm_property *property, uint64_t *val)
|
|
{
|
|
struct drm_device *dev = plane->dev;
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
|
|
if (property == config->prop_fb_id) {
|
|
*val = (state->fb) ? state->fb->base.id : 0;
|
|
} else if (property == config->prop_in_fence_fd) {
|
|
*val = -1;
|
|
} else if (property == config->prop_crtc_id) {
|
|
*val = (state->crtc) ? state->crtc->base.id : 0;
|
|
} else if (property == config->prop_crtc_x) {
|
|
*val = I642U64(state->crtc_x);
|
|
} else if (property == config->prop_crtc_y) {
|
|
*val = I642U64(state->crtc_y);
|
|
} else if (property == config->prop_crtc_w) {
|
|
*val = state->crtc_w;
|
|
} else if (property == config->prop_crtc_h) {
|
|
*val = state->crtc_h;
|
|
} else if (property == config->prop_src_x) {
|
|
*val = state->src_x;
|
|
} else if (property == config->prop_src_y) {
|
|
*val = state->src_y;
|
|
} else if (property == config->prop_src_w) {
|
|
*val = state->src_w;
|
|
} else if (property == config->prop_src_h) {
|
|
*val = state->src_h;
|
|
} else if (property == plane->alpha_property) {
|
|
*val = state->alpha;
|
|
} else if (property == plane->blend_mode_property) {
|
|
*val = state->pixel_blend_mode;
|
|
} else if (property == plane->rotation_property) {
|
|
*val = state->rotation;
|
|
} else if (property == plane->zpos_property) {
|
|
*val = state->zpos;
|
|
} else if (property == plane->color_encoding_property) {
|
|
*val = state->color_encoding;
|
|
} else if (property == plane->color_range_property) {
|
|
*val = state->color_range;
|
|
} else if (property == config->prop_fb_damage_clips) {
|
|
*val = (state->fb_damage_clips) ?
|
|
state->fb_damage_clips->base.id : 0;
|
|
} else if (property == plane->scaling_filter_property) {
|
|
*val = state->scaling_filter;
|
|
} else if (plane->funcs->atomic_get_property) {
|
|
return plane->funcs->atomic_get_property(plane, state, property, val);
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int drm_atomic_set_writeback_fb_for_connector(
|
|
struct drm_connector_state *conn_state,
|
|
struct drm_framebuffer *fb)
|
|
{
|
|
int ret;
|
|
struct drm_connector *conn = conn_state->connector;
|
|
|
|
ret = drm_writeback_set_fb(conn_state, fb);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (fb)
|
|
drm_dbg_atomic(conn->dev,
|
|
"Set [FB:%d] for connector state %p\n",
|
|
fb->base.id, conn_state);
|
|
else
|
|
drm_dbg_atomic(conn->dev,
|
|
"Set [NOFB] for connector state %p\n",
|
|
conn_state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int drm_atomic_connector_set_property(struct drm_connector *connector,
|
|
struct drm_connector_state *state, struct drm_file *file_priv,
|
|
struct drm_property *property, uint64_t val)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
bool replaced = false;
|
|
int ret;
|
|
|
|
if (property == config->prop_crtc_id) {
|
|
struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
|
|
|
|
if (val && !crtc)
|
|
return -EACCES;
|
|
return drm_atomic_set_crtc_for_connector(state, crtc);
|
|
} else if (property == config->dpms_property) {
|
|
/* setting DPMS property requires special handling, which
|
|
* is done in legacy setprop path for us. Disallow (for
|
|
* now?) atomic writes to DPMS property:
|
|
*/
|
|
return -EINVAL;
|
|
} else if (property == config->tv_select_subconnector_property) {
|
|
state->tv.select_subconnector = val;
|
|
} else if (property == config->tv_subconnector_property) {
|
|
state->tv.subconnector = val;
|
|
} else if (property == config->tv_left_margin_property) {
|
|
state->tv.margins.left = val;
|
|
} else if (property == config->tv_right_margin_property) {
|
|
state->tv.margins.right = val;
|
|
} else if (property == config->tv_top_margin_property) {
|
|
state->tv.margins.top = val;
|
|
} else if (property == config->tv_bottom_margin_property) {
|
|
state->tv.margins.bottom = val;
|
|
} else if (property == config->legacy_tv_mode_property) {
|
|
state->tv.legacy_mode = val;
|
|
} else if (property == config->tv_mode_property) {
|
|
state->tv.mode = val;
|
|
} else if (property == config->tv_brightness_property) {
|
|
state->tv.brightness = val;
|
|
} else if (property == config->tv_contrast_property) {
|
|
state->tv.contrast = val;
|
|
} else if (property == config->tv_flicker_reduction_property) {
|
|
state->tv.flicker_reduction = val;
|
|
} else if (property == config->tv_overscan_property) {
|
|
state->tv.overscan = val;
|
|
} else if (property == config->tv_saturation_property) {
|
|
state->tv.saturation = val;
|
|
} else if (property == config->tv_hue_property) {
|
|
state->tv.hue = val;
|
|
} else if (property == config->link_status_property) {
|
|
/* Never downgrade from GOOD to BAD on userspace's request here,
|
|
* only hw issues can do that.
|
|
*
|
|
* For an atomic property the userspace doesn't need to be able
|
|
* to understand all the properties, but needs to be able to
|
|
* restore the state it wants on VT switch. So if the userspace
|
|
* tries to change the link_status from GOOD to BAD, driver
|
|
* silently rejects it and returns a 0. This prevents userspace
|
|
* from accidentally breaking the display when it restores the
|
|
* state.
|
|
*/
|
|
if (state->link_status != DRM_LINK_STATUS_GOOD)
|
|
state->link_status = val;
|
|
} else if (property == config->hdr_output_metadata_property) {
|
|
ret = drm_atomic_replace_property_blob_from_id(dev,
|
|
&state->hdr_output_metadata,
|
|
val,
|
|
sizeof(struct hdr_output_metadata), -1,
|
|
&replaced);
|
|
return ret;
|
|
} else if (property == config->aspect_ratio_property) {
|
|
state->picture_aspect_ratio = val;
|
|
} else if (property == config->content_type_property) {
|
|
state->content_type = val;
|
|
} else if (property == connector->scaling_mode_property) {
|
|
state->scaling_mode = val;
|
|
} else if (property == config->content_protection_property) {
|
|
if (val == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
|
|
drm_dbg_kms(dev, "only drivers can set CP Enabled\n");
|
|
return -EINVAL;
|
|
}
|
|
state->content_protection = val;
|
|
} else if (property == config->hdcp_content_type_property) {
|
|
state->hdcp_content_type = val;
|
|
} else if (property == connector->colorspace_property) {
|
|
state->colorspace = val;
|
|
} else if (property == config->writeback_fb_id_property) {
|
|
struct drm_framebuffer *fb;
|
|
int ret;
|
|
|
|
fb = drm_framebuffer_lookup(dev, file_priv, val);
|
|
ret = drm_atomic_set_writeback_fb_for_connector(state, fb);
|
|
if (fb)
|
|
drm_framebuffer_put(fb);
|
|
return ret;
|
|
} else if (property == config->writeback_out_fence_ptr_property) {
|
|
s32 __user *fence_ptr = u64_to_user_ptr(val);
|
|
|
|
return set_out_fence_for_connector(state->state, connector,
|
|
fence_ptr);
|
|
} else if (property == connector->max_bpc_property) {
|
|
state->max_requested_bpc = val;
|
|
} else if (property == connector->privacy_screen_sw_state_property) {
|
|
state->privacy_screen_sw_state = val;
|
|
} else if (connector->funcs->atomic_set_property) {
|
|
return connector->funcs->atomic_set_property(connector,
|
|
state, property, val);
|
|
} else {
|
|
drm_dbg_atomic(connector->dev,
|
|
"[CONNECTOR:%d:%s] unknown property [PROP:%d:%s]]\n",
|
|
connector->base.id, connector->name,
|
|
property->base.id, property->name);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_atomic_connector_get_property(struct drm_connector *connector,
|
|
const struct drm_connector_state *state,
|
|
struct drm_property *property, uint64_t *val)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
|
|
if (property == config->prop_crtc_id) {
|
|
*val = (state->crtc) ? state->crtc->base.id : 0;
|
|
} else if (property == config->dpms_property) {
|
|
if (state->crtc && state->crtc->state->self_refresh_active)
|
|
*val = DRM_MODE_DPMS_ON;
|
|
else
|
|
*val = connector->dpms;
|
|
} else if (property == config->tv_select_subconnector_property) {
|
|
*val = state->tv.select_subconnector;
|
|
} else if (property == config->tv_subconnector_property) {
|
|
*val = state->tv.subconnector;
|
|
} else if (property == config->tv_left_margin_property) {
|
|
*val = state->tv.margins.left;
|
|
} else if (property == config->tv_right_margin_property) {
|
|
*val = state->tv.margins.right;
|
|
} else if (property == config->tv_top_margin_property) {
|
|
*val = state->tv.margins.top;
|
|
} else if (property == config->tv_bottom_margin_property) {
|
|
*val = state->tv.margins.bottom;
|
|
} else if (property == config->legacy_tv_mode_property) {
|
|
*val = state->tv.legacy_mode;
|
|
} else if (property == config->tv_mode_property) {
|
|
*val = state->tv.mode;
|
|
} else if (property == config->tv_brightness_property) {
|
|
*val = state->tv.brightness;
|
|
} else if (property == config->tv_contrast_property) {
|
|
*val = state->tv.contrast;
|
|
} else if (property == config->tv_flicker_reduction_property) {
|
|
*val = state->tv.flicker_reduction;
|
|
} else if (property == config->tv_overscan_property) {
|
|
*val = state->tv.overscan;
|
|
} else if (property == config->tv_saturation_property) {
|
|
*val = state->tv.saturation;
|
|
} else if (property == config->tv_hue_property) {
|
|
*val = state->tv.hue;
|
|
} else if (property == config->link_status_property) {
|
|
*val = state->link_status;
|
|
} else if (property == config->aspect_ratio_property) {
|
|
*val = state->picture_aspect_ratio;
|
|
} else if (property == config->content_type_property) {
|
|
*val = state->content_type;
|
|
} else if (property == connector->colorspace_property) {
|
|
*val = state->colorspace;
|
|
} else if (property == connector->scaling_mode_property) {
|
|
*val = state->scaling_mode;
|
|
} else if (property == config->hdr_output_metadata_property) {
|
|
*val = state->hdr_output_metadata ?
|
|
state->hdr_output_metadata->base.id : 0;
|
|
} else if (property == config->content_protection_property) {
|
|
*val = state->content_protection;
|
|
} else if (property == config->hdcp_content_type_property) {
|
|
*val = state->hdcp_content_type;
|
|
} else if (property == config->writeback_fb_id_property) {
|
|
/* Writeback framebuffer is one-shot, write and forget */
|
|
*val = 0;
|
|
} else if (property == config->writeback_out_fence_ptr_property) {
|
|
*val = 0;
|
|
} else if (property == connector->max_bpc_property) {
|
|
*val = state->max_requested_bpc;
|
|
} else if (property == connector->privacy_screen_sw_state_property) {
|
|
*val = state->privacy_screen_sw_state;
|
|
} else if (connector->funcs->atomic_get_property) {
|
|
return connector->funcs->atomic_get_property(connector,
|
|
state, property, val);
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int drm_atomic_get_property(struct drm_mode_object *obj,
|
|
struct drm_property *property, uint64_t *val)
|
|
{
|
|
struct drm_device *dev = property->dev;
|
|
int ret;
|
|
|
|
switch (obj->type) {
|
|
case DRM_MODE_OBJECT_CONNECTOR: {
|
|
struct drm_connector *connector = obj_to_connector(obj);
|
|
|
|
WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
|
|
ret = drm_atomic_connector_get_property(connector,
|
|
connector->state, property, val);
|
|
break;
|
|
}
|
|
case DRM_MODE_OBJECT_CRTC: {
|
|
struct drm_crtc *crtc = obj_to_crtc(obj);
|
|
|
|
WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
|
|
ret = drm_atomic_crtc_get_property(crtc,
|
|
crtc->state, property, val);
|
|
break;
|
|
}
|
|
case DRM_MODE_OBJECT_PLANE: {
|
|
struct drm_plane *plane = obj_to_plane(obj);
|
|
|
|
WARN_ON(!drm_modeset_is_locked(&plane->mutex));
|
|
ret = drm_atomic_plane_get_property(plane,
|
|
plane->state, property, val);
|
|
break;
|
|
}
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* The big monster ioctl
|
|
*/
|
|
|
|
static struct drm_pending_vblank_event *create_vblank_event(
|
|
struct drm_crtc *crtc, uint64_t user_data)
|
|
{
|
|
struct drm_pending_vblank_event *e = NULL;
|
|
|
|
e = kzalloc(sizeof *e, GFP_KERNEL);
|
|
if (!e)
|
|
return NULL;
|
|
|
|
e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
|
|
e->event.base.length = sizeof(e->event);
|
|
e->event.vbl.crtc_id = crtc->base.id;
|
|
e->event.vbl.user_data = user_data;
|
|
|
|
return e;
|
|
}
|
|
|
|
int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state,
|
|
struct drm_connector *connector,
|
|
int mode)
|
|
{
|
|
struct drm_connector *tmp_connector;
|
|
struct drm_connector_state *new_conn_state;
|
|
struct drm_crtc *crtc;
|
|
struct drm_crtc_state *crtc_state;
|
|
int i, ret, old_mode = connector->dpms;
|
|
bool active = false;
|
|
|
|
ret = drm_modeset_lock(&state->dev->mode_config.connection_mutex,
|
|
state->acquire_ctx);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (mode != DRM_MODE_DPMS_ON)
|
|
mode = DRM_MODE_DPMS_OFF;
|
|
connector->dpms = mode;
|
|
|
|
crtc = connector->state->crtc;
|
|
if (!crtc)
|
|
goto out;
|
|
ret = drm_atomic_add_affected_connectors(state, crtc);
|
|
if (ret)
|
|
goto out;
|
|
|
|
crtc_state = drm_atomic_get_crtc_state(state, crtc);
|
|
if (IS_ERR(crtc_state)) {
|
|
ret = PTR_ERR(crtc_state);
|
|
goto out;
|
|
}
|
|
|
|
for_each_new_connector_in_state(state, tmp_connector, new_conn_state, i) {
|
|
if (new_conn_state->crtc != crtc)
|
|
continue;
|
|
if (tmp_connector->dpms == DRM_MODE_DPMS_ON) {
|
|
active = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
crtc_state->active = active;
|
|
ret = drm_atomic_commit(state);
|
|
out:
|
|
if (ret != 0)
|
|
connector->dpms = old_mode;
|
|
return ret;
|
|
}
|
|
|
|
int drm_atomic_set_property(struct drm_atomic_state *state,
|
|
struct drm_file *file_priv,
|
|
struct drm_mode_object *obj,
|
|
struct drm_property *prop,
|
|
uint64_t prop_value)
|
|
{
|
|
struct drm_mode_object *ref;
|
|
int ret;
|
|
|
|
if (!drm_property_change_valid_get(prop, prop_value, &ref))
|
|
return -EINVAL;
|
|
|
|
switch (obj->type) {
|
|
case DRM_MODE_OBJECT_CONNECTOR: {
|
|
struct drm_connector *connector = obj_to_connector(obj);
|
|
struct drm_connector_state *connector_state;
|
|
|
|
connector_state = drm_atomic_get_connector_state(state, connector);
|
|
if (IS_ERR(connector_state)) {
|
|
ret = PTR_ERR(connector_state);
|
|
break;
|
|
}
|
|
|
|
ret = drm_atomic_connector_set_property(connector,
|
|
connector_state, file_priv,
|
|
prop, prop_value);
|
|
break;
|
|
}
|
|
case DRM_MODE_OBJECT_CRTC: {
|
|
struct drm_crtc *crtc = obj_to_crtc(obj);
|
|
struct drm_crtc_state *crtc_state;
|
|
|
|
crtc_state = drm_atomic_get_crtc_state(state, crtc);
|
|
if (IS_ERR(crtc_state)) {
|
|
ret = PTR_ERR(crtc_state);
|
|
break;
|
|
}
|
|
|
|
ret = drm_atomic_crtc_set_property(crtc,
|
|
crtc_state, prop, prop_value);
|
|
break;
|
|
}
|
|
case DRM_MODE_OBJECT_PLANE: {
|
|
struct drm_plane *plane = obj_to_plane(obj);
|
|
struct drm_plane_state *plane_state;
|
|
|
|
plane_state = drm_atomic_get_plane_state(state, plane);
|
|
if (IS_ERR(plane_state)) {
|
|
ret = PTR_ERR(plane_state);
|
|
break;
|
|
}
|
|
|
|
ret = drm_atomic_plane_set_property(plane,
|
|
plane_state, file_priv,
|
|
prop, prop_value);
|
|
break;
|
|
}
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
drm_property_change_valid_put(prop, ref);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* DOC: explicit fencing properties
|
|
*
|
|
* Explicit fencing allows userspace to control the buffer synchronization
|
|
* between devices. A Fence or a group of fences are transferred to/from
|
|
* userspace using Sync File fds and there are two DRM properties for that.
|
|
* IN_FENCE_FD on each DRM Plane to send fences to the kernel and
|
|
* OUT_FENCE_PTR on each DRM CRTC to receive fences from the kernel.
|
|
*
|
|
* As a contrast, with implicit fencing the kernel keeps track of any
|
|
* ongoing rendering, and automatically ensures that the atomic update waits
|
|
* for any pending rendering to complete. This is usually tracked in &struct
|
|
* dma_resv which can also contain mandatory kernel fences. Implicit syncing
|
|
* is how Linux traditionally worked (e.g. DRI2/3 on X.org), whereas explicit
|
|
* fencing is what Android wants.
|
|
*
|
|
* "IN_FENCE_FD”:
|
|
* Use this property to pass a fence that DRM should wait on before
|
|
* proceeding with the Atomic Commit request and show the framebuffer for
|
|
* the plane on the screen. The fence can be either a normal fence or a
|
|
* merged one, the sync_file framework will handle both cases and use a
|
|
* fence_array if a merged fence is received. Passing -1 here means no
|
|
* fences to wait on.
|
|
*
|
|
* If the Atomic Commit request has the DRM_MODE_ATOMIC_TEST_ONLY flag
|
|
* it will only check if the Sync File is a valid one.
|
|
*
|
|
* On the driver side the fence is stored on the @fence parameter of
|
|
* &struct drm_plane_state. Drivers which also support implicit fencing
|
|
* should extract the implicit fence using drm_gem_plane_helper_prepare_fb(),
|
|
* to make sure there's consistent behaviour between drivers in precedence
|
|
* of implicit vs. explicit fencing.
|
|
*
|
|
* "OUT_FENCE_PTR”:
|
|
* Use this property to pass a file descriptor pointer to DRM. Once the
|
|
* Atomic Commit request call returns OUT_FENCE_PTR will be filled with
|
|
* the file descriptor number of a Sync File. This Sync File contains the
|
|
* CRTC fence that will be signaled when all framebuffers present on the
|
|
* Atomic Commit * request for that given CRTC are scanned out on the
|
|
* screen.
|
|
*
|
|
* The Atomic Commit request fails if a invalid pointer is passed. If the
|
|
* Atomic Commit request fails for any other reason the out fence fd
|
|
* returned will be -1. On a Atomic Commit with the
|
|
* DRM_MODE_ATOMIC_TEST_ONLY flag the out fence will also be set to -1.
|
|
*
|
|
* Note that out-fences don't have a special interface to drivers and are
|
|
* internally represented by a &struct drm_pending_vblank_event in struct
|
|
* &drm_crtc_state, which is also used by the nonblocking atomic commit
|
|
* helpers and for the DRM event handling for existing userspace.
|
|
*/
|
|
|
|
struct drm_out_fence_state {
|
|
s32 __user *out_fence_ptr;
|
|
struct sync_file *sync_file;
|
|
int fd;
|
|
};
|
|
|
|
static int setup_out_fence(struct drm_out_fence_state *fence_state,
|
|
struct dma_fence *fence)
|
|
{
|
|
fence_state->fd = get_unused_fd_flags(O_CLOEXEC);
|
|
if (fence_state->fd < 0)
|
|
return fence_state->fd;
|
|
|
|
if (put_user(fence_state->fd, fence_state->out_fence_ptr))
|
|
return -EFAULT;
|
|
|
|
fence_state->sync_file = sync_file_create(fence);
|
|
if (!fence_state->sync_file)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int prepare_signaling(struct drm_device *dev,
|
|
struct drm_atomic_state *state,
|
|
struct drm_mode_atomic *arg,
|
|
struct drm_file *file_priv,
|
|
struct drm_out_fence_state **fence_state,
|
|
unsigned int *num_fences)
|
|
{
|
|
struct drm_crtc *crtc;
|
|
struct drm_crtc_state *crtc_state;
|
|
struct drm_connector *conn;
|
|
struct drm_connector_state *conn_state;
|
|
int i, c = 0, ret;
|
|
|
|
if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY)
|
|
return 0;
|
|
|
|
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
|
|
s32 __user *fence_ptr;
|
|
|
|
fence_ptr = get_out_fence_for_crtc(crtc_state->state, crtc);
|
|
|
|
if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT || fence_ptr) {
|
|
struct drm_pending_vblank_event *e;
|
|
|
|
e = create_vblank_event(crtc, arg->user_data);
|
|
if (!e)
|
|
return -ENOMEM;
|
|
|
|
crtc_state->event = e;
|
|
}
|
|
|
|
if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
|
|
struct drm_pending_vblank_event *e = crtc_state->event;
|
|
|
|
if (!file_priv)
|
|
continue;
|
|
|
|
ret = drm_event_reserve_init(dev, file_priv, &e->base,
|
|
&e->event.base);
|
|
if (ret) {
|
|
kfree(e);
|
|
crtc_state->event = NULL;
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (fence_ptr) {
|
|
struct dma_fence *fence;
|
|
struct drm_out_fence_state *f;
|
|
|
|
f = krealloc(*fence_state, sizeof(**fence_state) *
|
|
(*num_fences + 1), GFP_KERNEL);
|
|
if (!f)
|
|
return -ENOMEM;
|
|
|
|
memset(&f[*num_fences], 0, sizeof(*f));
|
|
|
|
f[*num_fences].out_fence_ptr = fence_ptr;
|
|
*fence_state = f;
|
|
|
|
fence = drm_crtc_create_fence(crtc);
|
|
if (!fence)
|
|
return -ENOMEM;
|
|
|
|
ret = setup_out_fence(&f[(*num_fences)++], fence);
|
|
if (ret) {
|
|
dma_fence_put(fence);
|
|
return ret;
|
|
}
|
|
|
|
crtc_state->event->base.fence = fence;
|
|
}
|
|
|
|
c++;
|
|
}
|
|
|
|
for_each_new_connector_in_state(state, conn, conn_state, i) {
|
|
struct drm_writeback_connector *wb_conn;
|
|
struct drm_out_fence_state *f;
|
|
struct dma_fence *fence;
|
|
s32 __user *fence_ptr;
|
|
|
|
if (!conn_state->writeback_job)
|
|
continue;
|
|
|
|
fence_ptr = get_out_fence_for_connector(state, conn);
|
|
if (!fence_ptr)
|
|
continue;
|
|
|
|
f = krealloc(*fence_state, sizeof(**fence_state) *
|
|
(*num_fences + 1), GFP_KERNEL);
|
|
if (!f)
|
|
return -ENOMEM;
|
|
|
|
memset(&f[*num_fences], 0, sizeof(*f));
|
|
|
|
f[*num_fences].out_fence_ptr = fence_ptr;
|
|
*fence_state = f;
|
|
|
|
wb_conn = drm_connector_to_writeback(conn);
|
|
fence = drm_writeback_get_out_fence(wb_conn);
|
|
if (!fence)
|
|
return -ENOMEM;
|
|
|
|
ret = setup_out_fence(&f[(*num_fences)++], fence);
|
|
if (ret) {
|
|
dma_fence_put(fence);
|
|
return ret;
|
|
}
|
|
|
|
conn_state->writeback_job->out_fence = fence;
|
|
}
|
|
|
|
/*
|
|
* Having this flag means user mode pends on event which will never
|
|
* reach due to lack of at least one CRTC for signaling
|
|
*/
|
|
if (c == 0 && (arg->flags & DRM_MODE_PAGE_FLIP_EVENT))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void complete_signaling(struct drm_device *dev,
|
|
struct drm_atomic_state *state,
|
|
struct drm_out_fence_state *fence_state,
|
|
unsigned int num_fences,
|
|
bool install_fds)
|
|
{
|
|
struct drm_crtc *crtc;
|
|
struct drm_crtc_state *crtc_state;
|
|
int i;
|
|
|
|
if (install_fds) {
|
|
for (i = 0; i < num_fences; i++)
|
|
fd_install(fence_state[i].fd,
|
|
fence_state[i].sync_file->file);
|
|
|
|
kfree(fence_state);
|
|
return;
|
|
}
|
|
|
|
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
|
|
struct drm_pending_vblank_event *event = crtc_state->event;
|
|
/*
|
|
* Free the allocated event. drm_atomic_helper_setup_commit
|
|
* can allocate an event too, so only free it if it's ours
|
|
* to prevent a double free in drm_atomic_state_clear.
|
|
*/
|
|
if (event && (event->base.fence || event->base.file_priv)) {
|
|
drm_event_cancel_free(dev, &event->base);
|
|
crtc_state->event = NULL;
|
|
}
|
|
}
|
|
|
|
if (!fence_state)
|
|
return;
|
|
|
|
for (i = 0; i < num_fences; i++) {
|
|
if (fence_state[i].sync_file)
|
|
fput(fence_state[i].sync_file->file);
|
|
if (fence_state[i].fd >= 0)
|
|
put_unused_fd(fence_state[i].fd);
|
|
|
|
/* If this fails log error to the user */
|
|
if (fence_state[i].out_fence_ptr &&
|
|
put_user(-1, fence_state[i].out_fence_ptr))
|
|
drm_dbg_atomic(dev, "Couldn't clear out_fence_ptr\n");
|
|
}
|
|
|
|
kfree(fence_state);
|
|
}
|
|
|
|
int drm_mode_atomic_ioctl(struct drm_device *dev,
|
|
void *data, struct drm_file *file_priv)
|
|
{
|
|
struct drm_mode_atomic *arg = data;
|
|
uint32_t __user *objs_ptr = (uint32_t __user *)(unsigned long)(arg->objs_ptr);
|
|
uint32_t __user *count_props_ptr = (uint32_t __user *)(unsigned long)(arg->count_props_ptr);
|
|
uint32_t __user *props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
|
|
uint64_t __user *prop_values_ptr = (uint64_t __user *)(unsigned long)(arg->prop_values_ptr);
|
|
unsigned int copied_objs, copied_props;
|
|
struct drm_atomic_state *state;
|
|
struct drm_modeset_acquire_ctx ctx;
|
|
struct drm_out_fence_state *fence_state;
|
|
int ret = 0;
|
|
unsigned int i, j, num_fences;
|
|
|
|
/* disallow for drivers not supporting atomic: */
|
|
if (!drm_core_check_feature(dev, DRIVER_ATOMIC))
|
|
return -EOPNOTSUPP;
|
|
|
|
/* disallow for userspace that has not enabled atomic cap (even
|
|
* though this may be a bit overkill, since legacy userspace
|
|
* wouldn't know how to call this ioctl)
|
|
*/
|
|
if (!file_priv->atomic) {
|
|
drm_dbg_atomic(dev,
|
|
"commit failed: atomic cap not enabled\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS) {
|
|
drm_dbg_atomic(dev, "commit failed: invalid flag\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg->reserved) {
|
|
drm_dbg_atomic(dev, "commit failed: reserved field set\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) {
|
|
drm_dbg_atomic(dev,
|
|
"commit failed: invalid flag DRM_MODE_PAGE_FLIP_ASYNC\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* can't test and expect an event at the same time. */
|
|
if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) &&
|
|
(arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) {
|
|
drm_dbg_atomic(dev,
|
|
"commit failed: page-flip event requested with test-only commit\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
state = drm_atomic_state_alloc(dev);
|
|
if (!state)
|
|
return -ENOMEM;
|
|
|
|
drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
|
|
state->acquire_ctx = &ctx;
|
|
state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET);
|
|
|
|
retry:
|
|
copied_objs = 0;
|
|
copied_props = 0;
|
|
fence_state = NULL;
|
|
num_fences = 0;
|
|
|
|
for (i = 0; i < arg->count_objs; i++) {
|
|
uint32_t obj_id, count_props;
|
|
struct drm_mode_object *obj;
|
|
|
|
if (get_user(obj_id, objs_ptr + copied_objs)) {
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
obj = drm_mode_object_find(dev, file_priv, obj_id, DRM_MODE_OBJECT_ANY);
|
|
if (!obj) {
|
|
ret = -ENOENT;
|
|
goto out;
|
|
}
|
|
|
|
if (!obj->properties) {
|
|
drm_mode_object_put(obj);
|
|
ret = -ENOENT;
|
|
goto out;
|
|
}
|
|
|
|
if (get_user(count_props, count_props_ptr + copied_objs)) {
|
|
drm_mode_object_put(obj);
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
copied_objs++;
|
|
|
|
for (j = 0; j < count_props; j++) {
|
|
uint32_t prop_id;
|
|
uint64_t prop_value;
|
|
struct drm_property *prop;
|
|
|
|
if (get_user(prop_id, props_ptr + copied_props)) {
|
|
drm_mode_object_put(obj);
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
prop = drm_mode_obj_find_prop_id(obj, prop_id);
|
|
if (!prop) {
|
|
drm_mode_object_put(obj);
|
|
ret = -ENOENT;
|
|
goto out;
|
|
}
|
|
|
|
if (copy_from_user(&prop_value,
|
|
prop_values_ptr + copied_props,
|
|
sizeof(prop_value))) {
|
|
drm_mode_object_put(obj);
|
|
ret = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
ret = drm_atomic_set_property(state, file_priv,
|
|
obj, prop, prop_value);
|
|
if (ret) {
|
|
drm_mode_object_put(obj);
|
|
goto out;
|
|
}
|
|
|
|
copied_props++;
|
|
}
|
|
|
|
drm_mode_object_put(obj);
|
|
}
|
|
|
|
ret = prepare_signaling(dev, state, arg, file_priv, &fence_state,
|
|
&num_fences);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) {
|
|
ret = drm_atomic_check_only(state);
|
|
} else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) {
|
|
ret = drm_atomic_nonblocking_commit(state);
|
|
} else {
|
|
ret = drm_atomic_commit(state);
|
|
}
|
|
|
|
out:
|
|
complete_signaling(dev, state, fence_state, num_fences, !ret);
|
|
|
|
if (ret == -EDEADLK) {
|
|
drm_atomic_state_clear(state);
|
|
ret = drm_modeset_backoff(&ctx);
|
|
if (!ret)
|
|
goto retry;
|
|
}
|
|
|
|
drm_atomic_state_put(state);
|
|
|
|
drm_modeset_drop_locks(&ctx);
|
|
drm_modeset_acquire_fini(&ctx);
|
|
|
|
return ret;
|
|
}
|