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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.c357
1 files changed, 240 insertions, 117 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index f6f5cd80c04d..3846996f9028 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.
*/
/**
@@ -23,45 +20,76 @@
* driver.
*/
+#include <linux/aperture.h>
#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/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_fb_helper.h>
+
+#include <drm/clients/drm_client_setup.h>
#include <drm/drm_atomic_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_print.h>
+#include <drm/drm_vblank.h>
+
+#include <soc/bcm2835/raspberrypi-firmware.h>
#include "uapi/drm/vc4_drm.h"
+
#include "vc4_drv.h"
#include "vc4_regs.h"
#define DRIVER_NAME "vc4"
#define DRIVER_DESC "Broadcom VC4 graphics"
-#define DRIVER_DATE "20140616"
#define DRIVER_MAJOR 0
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
/* Helper function for mapping the regs on a platform device. */
-void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index)
+void __iomem *vc4_ioremap_regs(struct platform_device *pdev, int index)
{
- struct resource *res;
void __iomem *map;
- res = platform_get_resource(dev, IORESOURCE_MEM, index);
- map = devm_ioremap_resource(&dev->dev, res);
- if (IS_ERR(map)) {
- DRM_ERROR("Failed to map registers: %ld\n", PTR_ERR(map));
+ map = devm_platform_ioremap_resource(pdev, index);
+ if (IS_ERR(map))
return map;
- }
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 int vc5_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;
+
+ return drm_gem_dma_dumb_create_internal(file_priv, dev, args);
+}
+
static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
@@ -72,30 +100,33 @@ static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
if (args->pad != 0)
return -EINVAL;
+ if (WARN_ON_ONCE(vc4->gen > VC4_GEN_4))
+ return -ENODEV;
+
+ 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:
@@ -115,11 +146,16 @@ static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
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->gen > VC4_GEN_4))
+ return -ENODEV;
+
vc4file = kzalloc(sizeof(*vc4file), GFP_KERNEL);
if (!vc4file)
return -ENOMEM;
+ vc4file->dev = vc4;
vc4_perfmon_open_file(vc4file);
file->driver_priv = vc4file;
@@ -128,29 +164,20 @@ 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 (WARN_ON_ONCE(vc4->gen > VC4_GEN_4))
+ return;
+
+ if (vc4file->bin_bo_used)
+ vc4_v3d_bin_bo_put(vc4);
+
vc4_perfmon_close_file(vc4file);
kfree(vc4file);
}
-static const struct vm_operations_struct vc4_vm_ops = {
- .fault = vc4_fault,
- .open = drm_gem_vm_open,
- .close = drm_gem_vm_close,
-};
-
-static const struct file_operations vc4_drm_fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = vc4_mmap,
- .poll = drm_poll,
- .read = drm_read,
- .compat_ioctl = drm_compat_ioctl,
- .llseek = noop_llseek,
-};
+DEFINE_DRM_GEM_FOPS(vc4_drm_fops);
static const struct drm_ioctl_desc vc4_drm_ioctls[] = {
DRM_IOCTL_DEF_DRV(VC4_SUBMIT_CL, vc4_submit_cl_ioctl, DRM_RENDER_ALLOW),
@@ -171,44 +198,23 @@ 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 = {
+const struct drm_driver vc4_drm_driver = {
.driver_features = (DRIVER_MODESET |
DRIVER_ATOMIC |
DRIVER_GEM |
- DRIVER_HAVE_IRQ |
DRIVER_RENDER |
- DRIVER_PRIME |
DRIVER_SYNCOBJ),
.open = vc4_open,
.postclose = vc4_close,
- .irq_handler = vc4_irq,
- .irq_preinstall = vc4_irq_preinstall,
- .irq_postinstall = vc4_irq_postinstall,
- .irq_uninstall = vc4_irq_uninstall,
-
- .get_scanout_position = vc4_crtc_get_scanoutpos,
- .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
#if defined(CONFIG_DEBUG_FS)
.debugfs_init = vc4_debugfs_init,
#endif
.gem_create_object = vc4_create_object,
- .gem_free_object_unlocked = vc4_free_object,
- .gem_vm_ops = &vc4_vm_ops,
-
- .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,
- .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
- .gem_prime_mmap = vc4_prime_mmap,
-
- .dumb_create = vc4_dumb_create,
+
+ DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(vc4_bo_dumb_create),
+ DRM_FBDEV_DMA_DRIVER_OPS,
.ioctls = vc4_drm_ioctls,
.num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
@@ -216,16 +222,31 @@ static struct drm_driver vc4_drm_driver = {
.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;
-}
+const struct drm_driver vc5_drm_driver = {
+ .driver_features = (DRIVER_MODESET |
+ DRIVER_ATOMIC |
+ DRIVER_GEM),
+
+#if defined(CONFIG_DEBUG_FS)
+ .debugfs_init = vc4_debugfs_init,
+#endif
+
+ DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(vc5_dumb_create),
+ DRM_FBDEV_DMA_DRIVER_OPS,
+
+ .fops = &vc4_drm_fops,
+
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+};
static void vc4_match_add_drivers(struct device *dev,
struct component_match **match,
@@ -238,84 +259,161 @@ 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);
+ component_match_add(dev, match, component_compare_dev, d);
p = d;
}
put_device(p);
}
}
+static void vc4_component_unbind_all(void *ptr)
+{
+ struct vc4_dev *vc4 = ptr;
+
+ component_unbind_all(vc4->dev, &vc4->base);
+}
+
+static const struct of_device_id vc4_dma_range_matches[] = {
+ { .compatible = "brcm,bcm2711-hvs" },
+ { .compatible = "brcm,bcm2712-hvs" },
+ { .compatible = "brcm,bcm2835-hvs" },
+ { .compatible = "brcm,bcm2835-v3d" },
+ { .compatible = "brcm,cygnus-v3d" },
+ { .compatible = "brcm,vc4-v3d" },
+ {}
+};
+
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;
+ enum vc4_gen gen;
int ret = 0;
dev->coherent_dma_mask = DMA_BIT_MASK(32);
- vc4 = devm_kzalloc(dev, sizeof(*vc4), GFP_KERNEL);
- if (!vc4)
- return -ENOMEM;
+ gen = (enum vc4_gen)of_device_get_match_data(dev);
+
+ if (gen > VC4_GEN_4)
+ driver = &vc5_drm_driver;
+ else
+ driver = &vc4_drm_driver;
+
+ if (gen >= VC4_GEN_6_C)
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36));
+ else
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
- drm = drm_dev_alloc(&vc4_drm_driver, dev);
- if (IS_ERR(drm))
- return PTR_ERR(drm);
+ 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, driver, struct vc4_dev, base);
+ if (IS_ERR(vc4))
+ return PTR_ERR(vc4);
+ vc4->gen = gen;
+ vc4->dev = dev;
+
+ drm = &vc4->base;
platform_set_drvdata(pdev, drm);
- vc4->dev = drm;
- drm->dev_private = vc4;
- ret = vc4_bo_cache_init(drm);
+ if (gen == VC4_GEN_4) {
+ ret = drmm_mutex_init(drm, &vc4->bin_bo_lock);
+ if (ret)
+ goto err;
+
+ ret = vc4_bo_cache_init(drm);
+ if (ret)
+ goto err;
+ }
+
+ ret = drmm_mode_config_init(drm);
if (ret)
- goto dev_put;
+ goto err;
+
+ if (gen == VC4_GEN_4) {
+ ret = vc4_gem_init(drm);
+ if (ret)
+ goto err;
+ }
+
+ node = of_find_compatible_node(NULL, NULL, "raspberrypi,bcm2835-firmware");
+ if (node) {
+ firmware = rpi_firmware_get(node);
+ of_node_put(node);
+
+ if (!firmware) {
+ ret = -EPROBE_DEFER;
+ goto err;
+ }
+ }
- drm_mode_config_init(drm);
+ ret = aperture_remove_all_conflicting_devices(driver->name);
+ if (ret)
+ goto err;
- vc4_gem_init(drm);
+ if (firmware) {
+ 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)
- goto gem_destroy;
+ goto err;
+
+ ret = devm_add_action_or_reset(dev, vc4_component_unbind_all, vc4);
+ if (ret)
+ goto err;
- drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
+ ret = vc4_plane_create_additional_planes(drm);
+ if (ret)
+ goto err;
- ret = drm_dev_register(drm, 0);
+ ret = vc4_kms_load(drm);
if (ret < 0)
- goto unbind_all;
+ goto err;
- vc4_kms_load(drm);
+ drm_for_each_crtc(crtc, drm)
+ vc4_crtc_disable_at_boot(crtc);
- drm_fbdev_generic_setup(drm, 32);
+ ret = drm_dev_register(drm, 0);
+ if (ret < 0)
+ goto err;
+
+ drm_client_setup_with_fourcc(drm, DRM_FORMAT_RGB565);
return 0;
-unbind_all:
- component_unbind_all(dev, drm);
-gem_destroy:
- vc4_gem_destroy(drm);
- vc4_bo_cache_destroy(drm);
-dev_put:
- drm_dev_put(drm);
+err:
+ platform_set_drvdata(pdev, NULL);
return ret;
}
static void vc4_drm_unbind(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
- struct vc4_dev *vc4 = to_vc4_dev(drm);
-
- drm_dev_unregister(drm);
+ drm_dev_unplug(drm);
drm_atomic_helper_shutdown(drm);
-
- drm_mode_config_cleanup(drm);
-
- drm_atomic_private_obj_fini(&vc4->ctm_manager);
-
- drm_dev_put(drm);
+ dev_set_drvdata(dev, NULL);
}
static const struct component_master_ops vc4_drm_ops = {
@@ -323,13 +421,22 @@ static const struct component_master_ops vc4_drm_ops = {
.unbind = vc4_drm_unbind,
};
+/*
+ * This list determines the binding order of our components, and we have
+ * a few constraints:
+ * - The TXP driver needs to be bound before the PixelValves (CRTC)
+ * but after the HVS to set the possible_crtc field properly
+ * - The HDMI driver needs to be bound after the HVS so that we can
+ * lookup the HVS maximum core clock rate and figure out if we
+ * support 4kp60 or not.
+ */
static struct platform_driver *const component_drivers[] = {
+ &vc4_hvs_driver,
&vc4_hdmi_driver,
&vc4_vec_driver,
&vc4_dpi_driver,
&vc4_dsi_driver,
&vc4_txp_driver,
- &vc4_hvs_driver,
&vc4_crtc_driver,
&vc4_v3d_driver,
};
@@ -345,16 +452,22 @@ static int vc4_platform_drm_probe(struct platform_device *pdev)
return component_master_add_with_match(dev, &vc4_drm_ops, match);
}
-static int vc4_platform_drm_remove(struct platform_device *pdev)
+static void vc4_platform_drm_remove(struct platform_device *pdev)
{
component_master_del(&pdev->dev, &vc4_drm_ops);
+}
- return 0;
+static void vc4_platform_drm_shutdown(struct platform_device *pdev)
+{
+ drm_atomic_helper_shutdown(platform_get_drvdata(pdev));
}
static const struct of_device_id vc4_of_match[] = {
- { .compatible = "brcm,bcm2835-vc4", },
- { .compatible = "brcm,cygnus-vc4", },
+ { .compatible = "brcm,bcm2711-vc5", .data = (void *)VC4_GEN_5 },
+ /* NB GEN_6_C will be corrected on D0 hw to GEN_6_D via vc4_hvs_bind */
+ { .compatible = "brcm,bcm2712-vc6", .data = (void *)VC4_GEN_6_C },
+ { .compatible = "brcm,bcm2835-vc4", .data = (void *)VC4_GEN_4 },
+ { .compatible = "brcm,cygnus-vc4", .data = (void *)VC4_GEN_4 },
{},
};
MODULE_DEVICE_TABLE(of, vc4_of_match);
@@ -362,6 +475,7 @@ MODULE_DEVICE_TABLE(of, vc4_of_match);
static struct platform_driver vc4_platform_driver = {
.probe = vc4_platform_drm_probe,
.remove = vc4_platform_drm_remove,
+ .shutdown = vc4_platform_drm_shutdown,
.driver = {
.name = "vc4-drm",
.of_match_table = vc4_of_match,
@@ -372,12 +486,20 @@ static int __init vc4_drm_register(void)
{
int ret;
+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
ret = platform_register_drivers(component_drivers,
ARRAY_SIZE(component_drivers));
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)
@@ -391,6 +513,7 @@ module_init(vc4_drm_register);
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");
generated by cgit (git 2.34.1) at 2025-12-25 00:01:51 +0000