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path: root/drivers/gpu/drm/vc4/vc4_drv.c
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Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_drv.c')
-rw-r--r--drivers/gpu/drm/vc4/vc4_drv.c65
1 files changed, 40 insertions, 25 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 5fcd2f0da7f7..5e6fb6c2307f 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014-2015 Broadcom
* Copyright (C) 2013 Red Hat
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
/**
@@ -26,16 +23,21 @@
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/device.h>
+#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_drv.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fb_helper.h>
-#include <drm/drm_atomic_helper.h>
+#include <drm/drm_vblank.h>
#include "uapi/drm/vc4_drm.h"
+
#include "vc4_drv.h"
#include "vc4_regs.h"
@@ -72,30 +74,30 @@ static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
if (args->pad != 0)
return -EINVAL;
+ if (!vc4->v3d)
+ return -ENODEV;
+
switch (args->param) {
case DRM_VC4_PARAM_V3D_IDENT0:
- ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
- if (ret < 0)
+ ret = vc4_v3d_pm_get(vc4);
+ if (ret)
return ret;
args->value = V3D_READ(V3D_IDENT0);
- pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
- pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
+ vc4_v3d_pm_put(vc4);
break;
case DRM_VC4_PARAM_V3D_IDENT1:
- ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
- if (ret < 0)
+ ret = vc4_v3d_pm_get(vc4);
+ if (ret)
return ret;
args->value = V3D_READ(V3D_IDENT1);
- pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
- pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
+ vc4_v3d_pm_put(vc4);
break;
case DRM_VC4_PARAM_V3D_IDENT2:
- ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
- if (ret < 0)
+ ret = vc4_v3d_pm_get(vc4);
+ if (ret)
return ret;
args->value = V3D_READ(V3D_IDENT2);
- pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
- pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
+ vc4_v3d_pm_put(vc4);
break;
case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
case DRM_VC4_PARAM_SUPPORTS_ETC1:
@@ -128,8 +130,12 @@ static int vc4_open(struct drm_device *dev, struct drm_file *file)
static void vc4_close(struct drm_device *dev, struct drm_file *file)
{
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
struct vc4_file *vc4file = file->driver_priv;
+ if (vc4file->bin_bo_used)
+ vc4_v3d_bin_bo_put(vc4);
+
vc4_perfmon_close_file(vc4file);
kfree(vc4file);
}
@@ -176,7 +182,6 @@ static struct drm_driver vc4_drm_driver = {
DRIVER_ATOMIC |
DRIVER_GEM |
DRIVER_RENDER |
- DRIVER_PRIME |
DRIVER_SYNCOBJ),
.open = vc4_open,
.postclose = vc4_close,
@@ -198,9 +203,7 @@ static struct drm_driver vc4_drm_driver = {
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_import = drm_gem_prime_import,
.gem_prime_export = vc4_prime_export,
- .gem_prime_res_obj = vc4_prime_res_obj,
.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
.gem_prime_import_sg_table = vc4_prime_import_sg_table,
.gem_prime_vmap = vc4_prime_vmap,
@@ -237,8 +240,7 @@ static void vc4_match_add_drivers(struct device *dev,
struct device_driver *drv = &drivers[i]->driver;
struct device *p = NULL, *d;
- while ((d = bus_find_device(&platform_bus_type, p, drv,
- (void *)platform_bus_type.match))) {
+ while ((d = platform_find_device_by_driver(p, drv))) {
put_device(p);
component_match_add(dev, match, compare_dev, d);
p = d;
@@ -252,6 +254,7 @@ static int vc4_drm_bind(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm;
struct vc4_dev *vc4;
+ struct device_node *node;
int ret = 0;
dev->coherent_dma_mask = DMA_BIT_MASK(32);
@@ -260,12 +263,21 @@ static int vc4_drm_bind(struct device *dev)
if (!vc4)
return -ENOMEM;
+ /* If VC4 V3D is missing, don't advertise render nodes. */
+ node = of_find_matching_node_and_match(NULL, vc4_v3d_dt_match, NULL);
+ if (!node || !of_device_is_available(node))
+ vc4_drm_driver.driver_features &= ~DRIVER_RENDER;
+ of_node_put(node);
+
drm = drm_dev_alloc(&vc4_drm_driver, dev);
if (IS_ERR(drm))
return PTR_ERR(drm);
platform_set_drvdata(pdev, drm);
vc4->dev = drm;
drm->dev_private = vc4;
+ INIT_LIST_HEAD(&vc4->debugfs_list);
+
+ mutex_init(&vc4->bin_bo_lock);
ret = vc4_bo_cache_init(drm);
if (ret)
@@ -281,13 +293,15 @@ static int vc4_drm_bind(struct device *dev)
drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
- ret = drm_dev_register(drm, 0);
+ ret = vc4_kms_load(drm);
if (ret < 0)
goto unbind_all;
- vc4_kms_load(drm);
+ ret = drm_dev_register(drm, 0);
+ if (ret < 0)
+ goto unbind_all;
- drm_fbdev_generic_setup(drm, 32);
+ drm_fbdev_generic_setup(drm, 16);
return 0;
@@ -312,6 +326,7 @@ static void vc4_drm_unbind(struct device *dev)
drm_mode_config_cleanup(drm);
+ drm_atomic_private_obj_fini(&vc4->load_tracker);
drm_atomic_private_obj_fini(&vc4->ctm_manager);
drm_dev_put(drm);