#include <drm/drm_fb_helper.h>
#include <drm/drm_vblank.h>
+#include <soc/bcm2835/raspberrypi-firmware.h>
+
#include "uapi/drm/vc4_drm.h"
#include "vc4_drv.h"
return map;
}
+int vc4_dumb_fixup_args(struct drm_mode_create_dumb *args)
+{
+ int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
+
+ if (args->pitch < min_pitch)
+ args->pitch = min_pitch;
+
+ if (args->size < args->pitch * args->height)
+ args->size = args->pitch * args->height;
+
+ return 0;
+}
+
+static void vc5_gem_register_pid(struct drm_file *file_priv)
+{
+ struct vc4_file *vc4file = file_priv->driver_priv;
+ struct drm_vc5_file_private *driver_priv = &vc4file->priv;
+
+ if (!driver_priv->pid && !driver_priv->tgid) {
+ driver_priv->pid = task_pid_nr(current);
+ driver_priv->tgid = task_tgid_nr(current);
+ } else {
+ if (driver_priv->pid != task_pid_nr(current))
+ DRM_DEBUG_KMS("wrong pid: %ld, %ld\n",
+ (unsigned long)driver_priv->pid,
+ (unsigned long)task_pid_nr(current));
+ if (driver_priv->tgid != task_tgid_nr(current))
+ DRM_DEBUG_KMS("wrong tgid: %ld, %ld\n",
+ (unsigned long)driver_priv->tgid,
+ (unsigned long)task_tgid_nr(current));
+ }
+}
+
+int vc5_drm_gem_prime_fd_to_handle(struct drm_device *dev,
+ struct drm_file *file_priv, int prime_fd,
+ uint32_t *handle)
+{
+ int ret;
+
+ ret = drm_gem_prime_fd_to_handle(dev, file_priv, prime_fd, handle);
+ if (ret < 0)
+ return ret;
+
+ vc5_gem_register_pid(file_priv);
+
+ return ret;
+}
+
+static int vc4_dumb_create(struct drm_file *file_priv,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ int ret;
+
+ ret = vc4_dumb_fixup_args(args);
+ if (ret)
+ return ret;
+
+ ret = drm_gem_cma_dumb_create_internal(file_priv, dev, args);
+ if (!ret)
+ vc5_gem_register_pid(file_priv);
+
+ return ret;
+}
+
static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
if (args->pad != 0)
return -EINVAL;
+ if (WARN_ON_ONCE(vc4->is_vc5))
+ return -ENODEV;
+
if (!vc4->v3d)
return -ENODEV;
static int vc4_open(struct drm_device *dev, struct drm_file *file)
{
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
struct vc4_file *vc4file;
+ if (WARN_ON_ONCE(vc4->is_vc5))
+ return -ENODEV;
+
vc4file = kzalloc(sizeof(*vc4file), GFP_KERNEL);
if (!vc4file)
return -ENOMEM;
+ vc4file->dev = vc4;
vc4_perfmon_open_file(vc4file);
file->driver_priv = vc4file;
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct vc4_file *vc4file = file->driver_priv;
+ if (WARN_ON_ONCE(vc4->is_vc5))
+ return;
+
if (vc4file->bin_bo_used)
vc4_v3d_bin_bo_put(vc4);
kfree(vc4file);
}
+static int vc5_open(struct drm_device *dev, struct drm_file *file)
+{
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
+ struct vc4_file *vc4file;
+
+ vc4file = kzalloc(sizeof(*vc4file), GFP_KERNEL);
+ if (!vc4file)
+ return -ENOMEM;
+ vc4file->dev = vc4;
+
+ file->driver_priv = vc4file;
+ return 0;
+}
+
+static void vc5_close(struct drm_device *dev, struct drm_file *file)
+{
+ struct vc4_file *vc4file = file->driver_priv;
+
+ kfree(vc4file);
+}
+
DEFINE_DRM_GEM_FOPS(vc4_drm_fops);
static const struct drm_ioctl_desc vc4_drm_ioctls[] = {
DRM_IOCTL_DEF_DRV(VC4_PERFMON_GET_VALUES, vc4_perfmon_get_values_ioctl, DRM_RENDER_ALLOW),
};
-static struct drm_driver vc4_drm_driver = {
+static const struct drm_driver vc4_drm_driver = {
.driver_features = (DRIVER_MODESET |
DRIVER_ATOMIC |
DRIVER_GEM |
.gem_create_object = vc4_create_object,
- DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(vc4_dumb_create),
+ DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(vc4_bo_dumb_create),
.ioctls = vc4_drm_ioctls,
.num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
.patchlevel = DRIVER_PATCHLEVEL,
};
+static const struct drm_driver vc5_drm_driver = {
+ .driver_features = (DRIVER_MODESET |
+ DRIVER_ATOMIC |
+ DRIVER_GEM),
+
+ .open = vc5_open,
+ .postclose = vc5_close,
+#if defined(CONFIG_DEBUG_FS)
+ .debugfs_init = vc4_debugfs_init,
+#endif
+
+ DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(vc4_dumb_create),
+
+ .prime_fd_to_handle = vc5_drm_gem_prime_fd_to_handle,
+ .fops = &vc4_drm_fops,
+
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+};
+
static int compare_dev(struct device *dev, void *data)
{
return dev == data;
}
}
+static void vc4_component_unbind_all(void *ptr)
+{
+ struct vc4_dev *vc4 = ptr;
+
+ component_unbind_all(vc4->dev, &vc4->base);
+}
+
+const struct of_device_id vc4_dma_range_matches[] = {
+ { .compatible = "brcm,bcm2835-hvs" },
+ { .compatible = "brcm,bcm2711-hvs" },
+ { .compatible = "raspberrypi,rpi-firmware-kms" },
+ { .compatible = "brcm,bcm2835-v3d" },
+ { .compatible = "brcm,cygnus-v3d" },
+ { .compatible = "brcm,vc4-v3d" },
+ {}
+};
+
+/*
+ * we need this helper function for determining presence of fkms
+ * before it's been bound
+ */
+static bool firmware_kms(void)
+{
+ return of_device_is_available(of_find_compatible_node(NULL, NULL,
+ "raspberrypi,rpi-firmware-kms")) ||
+ of_device_is_available(of_find_compatible_node(NULL, NULL,
+ "raspberrypi,rpi-firmware-kms-2711"));
+}
+
+int vc5_bo_debugfs_init(struct drm_minor *minor)
+{
+ struct drm_device *drm = minor->dev;
+ struct vc4_dev *vc4 = to_vc4_dev(drm);
+ int ret;
+
+ if (!vc4->is_vc5)
+ return -ENODEV;
+
+ ret = vc4_debugfs_add_file(minor, "gem_info",
+ vc5_debugfs_gem_info, NULL);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
static int vc4_drm_bind(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
+ const struct drm_driver *driver;
+ struct rpi_firmware *firmware = NULL;
struct drm_device *drm;
struct vc4_dev *vc4;
struct device_node *node;
struct drm_crtc *crtc;
+ bool is_vc5;
int ret = 0;
dev->coherent_dma_mask = DMA_BIT_MASK(32);
- /* 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);
+ is_vc5 = of_device_is_compatible(dev->of_node, "brcm,bcm2711-vc5");
+ if (is_vc5)
+ driver = &vc5_drm_driver;
+ else
+ driver = &vc4_drm_driver;
+
+ node = of_find_matching_node_and_match(NULL, vc4_dma_range_matches,
+ NULL);
+ if (node) {
+ ret = of_dma_configure(dev, node, true);
+ of_node_put(node);
+
+ if (ret)
+ return ret;
+ }
- vc4 = devm_drm_dev_alloc(dev, &vc4_drm_driver, struct vc4_dev, base);
+ vc4 = devm_drm_dev_alloc(dev, driver, struct vc4_dev, base);
if (IS_ERR(vc4))
return PTR_ERR(vc4);
+ vc4->is_vc5 = is_vc5;
+ vc4->dev = dev;
drm = &vc4->base;
platform_set_drvdata(pdev, drm);
INIT_LIST_HEAD(&vc4->debugfs_list);
- mutex_init(&vc4->bin_bo_lock);
+ if (!is_vc5) {
+ ret = drmm_mutex_init(drm, &vc4->bin_bo_lock);
+ if (ret)
+ return ret;
- ret = vc4_bo_cache_init(drm);
- if (ret)
- return ret;
+ ret = vc4_bo_cache_init(drm);
+ if (ret)
+ return ret;
+ }
ret = drmm_mode_config_init(drm);
if (ret)
return ret;
- ret = vc4_gem_init(drm);
+ if (!is_vc5) {
+ ret = vc4_gem_init(drm);
+ if (ret)
+ return ret;
+ }
+
+ node = of_find_compatible_node(NULL, NULL, "raspberrypi,bcm2835-firmware");
+ if (node) {
+ firmware = rpi_firmware_get(node);
+ of_node_put(node);
+
+ if (!firmware)
+ return -EPROBE_DEFER;
+ }
+
+ ret = drm_aperture_remove_framebuffers(false, driver);
if (ret)
return ret;
+ if (firmware && !firmware_kms()) {
+ ret = rpi_firmware_property(firmware,
+ RPI_FIRMWARE_NOTIFY_DISPLAY_DONE,
+ NULL, 0);
+ if (ret)
+ drm_warn(drm, "Couldn't stop firmware display driver: %d\n", ret);
+
+ rpi_firmware_put(firmware);
+ }
+
ret = component_bind_all(dev, drm);
if (ret)
return ret;
- ret = vc4_plane_create_additional_planes(drm);
+ ret = devm_add_action_or_reset(dev, vc4_component_unbind_all, vc4);
if (ret)
- goto unbind_all;
+ return ret;
- ret = drm_aperture_remove_framebuffers(false, &vc4_drm_driver);
- if (ret)
- goto unbind_all;
+ if (!vc4->firmware_kms) {
+ ret = vc4_plane_create_additional_planes(drm);
+ if (ret)
+ goto unbind_all;
+ }
ret = vc4_kms_load(drm);
if (ret < 0)
goto unbind_all;
- drm_for_each_crtc(crtc, drm)
- vc4_crtc_disable_at_boot(crtc);
+ if (!vc4->firmware_kms) {
+ drm_for_each_crtc(crtc, drm)
+ vc4_crtc_disable_at_boot(crtc);
+ }
ret = drm_dev_register(drm, 0);
if (ret < 0)
return 0;
unbind_all:
- component_unbind_all(dev, drm);
-
return ret;
}
{
struct drm_device *drm = dev_get_drvdata(dev);
- drm_dev_unregister(drm);
-
+ drm_dev_unplug(drm);
drm_atomic_helper_shutdown(drm);
}
&vc4_dsi_driver,
&vc4_txp_driver,
&vc4_crtc_driver,
+ &vc4_firmware_kms_driver,
&vc4_v3d_driver,
};
if (ret)
return ret;
- return platform_driver_register(&vc4_platform_driver);
+ ret = platform_driver_register(&vc4_platform_driver);
+ if (ret)
+ platform_unregister_drivers(component_drivers,
+ ARRAY_SIZE(component_drivers));
+
+ return ret;
}
static void __exit vc4_drm_unregister(void)
module_exit(vc4_drm_unregister);
MODULE_ALIAS("platform:vc4-drm");
+MODULE_SOFTDEP("pre: snd-soc-hdmi-codec");
MODULE_DESCRIPTION("Broadcom VC4 DRM Driver");
MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-rpi.git / blobdiff