This patch adds the basic structure of a DRM Driver for Rockchip Socs.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
source "drivers/gpu/drm/exynos/Kconfig"
+source "drivers/gpu/drm/rockchip/Kconfig"
+
source "drivers/gpu/drm/vmwgfx/Kconfig"
source "drivers/gpu/drm/gma500/Kconfig"
obj-$(CONFIG_DRM_VIA) +=via/
obj-$(CONFIG_DRM_NOUVEAU) +=nouveau/
obj-$(CONFIG_DRM_EXYNOS) +=exynos/
+obj-$(CONFIG_DRM_ROCKCHIP) +=rockchip/
obj-$(CONFIG_DRM_GMA500) += gma500/
obj-$(CONFIG_DRM_UDL) += udl/
obj-$(CONFIG_DRM_AST) += ast/
--- /dev/null
+config DRM_ROCKCHIP
+ tristate "DRM Support for Rockchip"
+ depends on DRM && ROCKCHIP_IOMMU
+ select DRM_KMS_HELPER
+ select DRM_KMS_FB_HELPER
+ select DRM_PANEL
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE
+ select VIDEOMODE_HELPERS
+ help
+ Choose this option if you have a Rockchip soc chipset.
+ This driver provides kernel mode setting and buffer
+ management to userspace. This driver does not provide
+ 2D or 3D acceleration; acceleration is performed by other
+ IP found on the SoC.
--- /dev/null
+#
+# Makefile for the drm device driver. This driver provides support for the
+# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
+
+rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \
+ rockchip_drm_gem.o
+
+obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o rockchip_drm_vop.o
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * based on exynos_drm_drv.c
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <asm/dma-iommu.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
+#include <linux/of_graph.h>
+#include <linux/component.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_fb.h"
+#include "rockchip_drm_fbdev.h"
+#include "rockchip_drm_gem.h"
+
+#define DRIVER_NAME "rockchip"
+#define DRIVER_DESC "RockChip Soc DRM"
+#define DRIVER_DATE "20140818"
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+
+/*
+ * Attach a (component) device to the shared drm dma mapping from master drm
+ * device. This is used by the VOPs to map GEM buffers to a common DMA
+ * mapping.
+ */
+int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
+ struct device *dev)
+{
+ struct dma_iommu_mapping *mapping = drm_dev->dev->archdata.mapping;
+ int ret;
+
+ ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
+
+ dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
+
+ return arm_iommu_attach_device(dev, mapping);
+}
+EXPORT_SYMBOL_GPL(rockchip_drm_dma_attach_device);
+
+void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
+ struct device *dev)
+{
+ arm_iommu_detach_device(dev);
+}
+EXPORT_SYMBOL_GPL(rockchip_drm_dma_detach_device);
+
+int rockchip_register_crtc_funcs(struct drm_device *dev,
+ const struct rockchip_crtc_funcs *crtc_funcs,
+ int pipe)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+
+ if (pipe > ROCKCHIP_MAX_CRTC)
+ return -EINVAL;
+
+ priv->crtc_funcs[pipe] = crtc_funcs;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rockchip_register_crtc_funcs);
+
+void rockchip_unregister_crtc_funcs(struct drm_device *dev, int pipe)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+
+ if (pipe > ROCKCHIP_MAX_CRTC)
+ return;
+
+ priv->crtc_funcs[pipe] = NULL;
+}
+EXPORT_SYMBOL_GPL(rockchip_unregister_crtc_funcs);
+
+static struct drm_crtc *rockchip_crtc_from_pipe(struct drm_device *drm,
+ int pipe)
+{
+ struct drm_crtc *crtc;
+ int i = 0;
+
+ list_for_each_entry(crtc, &drm->mode_config.crtc_list, head)
+ if (i++ == pipe)
+ return crtc;
+
+ return NULL;
+}
+
+static int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+ struct drm_crtc *crtc = rockchip_crtc_from_pipe(dev, pipe);
+
+ if (crtc && priv->crtc_funcs[pipe] &&
+ priv->crtc_funcs[pipe]->enable_vblank)
+ return priv->crtc_funcs[pipe]->enable_vblank(crtc);
+
+ return 0;
+}
+
+static void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+ struct drm_crtc *crtc = rockchip_crtc_from_pipe(dev, pipe);
+
+ if (crtc && priv->crtc_funcs[pipe] &&
+ priv->crtc_funcs[pipe]->enable_vblank)
+ priv->crtc_funcs[pipe]->disable_vblank(crtc);
+}
+
+static int rockchip_drm_load(struct drm_device *drm_dev, unsigned long flags)
+{
+ struct rockchip_drm_private *private;
+ struct dma_iommu_mapping *mapping;
+ struct device *dev = drm_dev->dev;
+ int ret;
+
+ private = devm_kzalloc(drm_dev->dev, sizeof(*private), GFP_KERNEL);
+ if (!private)
+ return -ENOMEM;
+
+ drm_dev->dev_private = private;
+
+ drm_mode_config_init(drm_dev);
+
+ rockchip_drm_mode_config_init(drm_dev);
+
+ dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
+ GFP_KERNEL);
+ if (!dev->dma_parms) {
+ ret = -ENOMEM;
+ goto err_config_cleanup;
+ }
+
+ /* TODO(djkurtz): fetch the mapping start/size from somewhere */
+ mapping = arm_iommu_create_mapping(&platform_bus_type, 0x00000000,
+ SZ_2G);
+ if (IS_ERR(mapping)) {
+ ret = PTR_ERR(mapping);
+ goto err_config_cleanup;
+ }
+
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+ if (ret)
+ goto err_release_mapping;
+
+ dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
+
+ ret = arm_iommu_attach_device(dev, mapping);
+ if (ret)
+ goto err_release_mapping;
+
+ /* Try to bind all sub drivers. */
+ ret = component_bind_all(dev, drm_dev);
+ if (ret)
+ goto err_detach_device;
+
+ /* init kms poll for handling hpd */
+ drm_kms_helper_poll_init(drm_dev);
+
+ /*
+ * enable drm irq mode.
+ * - with irq_enabled = true, we can use the vblank feature.
+ */
+ drm_dev->irq_enabled = true;
+
+ ret = drm_vblank_init(drm_dev, ROCKCHIP_MAX_CRTC);
+ if (ret)
+ goto err_kms_helper_poll_fini;
+
+ /*
+ * with vblank_disable_allowed = true, vblank interrupt will be disabled
+ * by drm timer once a current process gives up ownership of
+ * vblank event.(after drm_vblank_put function is called)
+ */
+ drm_dev->vblank_disable_allowed = true;
+
+ ret = rockchip_drm_fbdev_init(drm_dev);
+ if (ret)
+ goto err_vblank_cleanup;
+
+ return 0;
+err_vblank_cleanup:
+ drm_vblank_cleanup(drm_dev);
+err_kms_helper_poll_fini:
+ drm_kms_helper_poll_fini(drm_dev);
+ component_unbind_all(dev, drm_dev);
+err_detach_device:
+ arm_iommu_detach_device(dev);
+err_release_mapping:
+ arm_iommu_release_mapping(dev->archdata.mapping);
+err_config_cleanup:
+ drm_mode_config_cleanup(drm_dev);
+ drm_dev->dev_private = NULL;
+ return ret;
+}
+
+static int rockchip_drm_unload(struct drm_device *drm_dev)
+{
+ struct device *dev = drm_dev->dev;
+
+ rockchip_drm_fbdev_fini(drm_dev);
+ drm_vblank_cleanup(drm_dev);
+ drm_kms_helper_poll_fini(drm_dev);
+ component_unbind_all(dev, drm_dev);
+ arm_iommu_detach_device(dev);
+ arm_iommu_release_mapping(dev->archdata.mapping);
+ drm_mode_config_cleanup(drm_dev);
+ drm_dev->dev_private = NULL;
+
+ return 0;
+}
+
+void rockchip_drm_lastclose(struct drm_device *dev)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+
+ drm_fb_helper_restore_fbdev_mode_unlocked(&priv->fbdev_helper);
+}
+
+static const struct file_operations rockchip_drm_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .mmap = rockchip_gem_mmap,
+ .poll = drm_poll,
+ .read = drm_read,
+ .unlocked_ioctl = drm_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .release = drm_release,
+};
+
+const struct vm_operations_struct rockchip_drm_vm_ops = {
+ .open = drm_gem_vm_open,
+ .close = drm_gem_vm_close,
+};
+
+static struct drm_driver rockchip_drm_driver = {
+ .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
+ .load = rockchip_drm_load,
+ .unload = rockchip_drm_unload,
+ .lastclose = rockchip_drm_lastclose,
+ .get_vblank_counter = drm_vblank_count,
+ .enable_vblank = rockchip_drm_crtc_enable_vblank,
+ .disable_vblank = rockchip_drm_crtc_disable_vblank,
+ .gem_vm_ops = &rockchip_drm_vm_ops,
+ .gem_free_object = rockchip_gem_free_object,
+ .dumb_create = rockchip_gem_dumb_create,
+ .dumb_map_offset = rockchip_gem_dumb_map_offset,
+ .dumb_destroy = drm_gem_dumb_destroy,
+ .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 = drm_gem_prime_export,
+ .gem_prime_get_sg_table = rockchip_gem_prime_get_sg_table,
+ .gem_prime_vmap = rockchip_gem_prime_vmap,
+ .gem_prime_vunmap = rockchip_gem_prime_vunmap,
+ .gem_prime_mmap = rockchip_gem_mmap_buf,
+ .fops = &rockchip_drm_driver_fops,
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_drm_sys_suspend(struct device *dev)
+{
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct drm_connector *connector;
+
+ if (!drm)
+ return 0;
+
+ drm_modeset_lock_all(drm);
+ list_for_each_entry(connector, &drm->mode_config.connector_list, head) {
+ int old_dpms = connector->dpms;
+
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
+
+ /* Set the old mode back to the connector for resume */
+ connector->dpms = old_dpms;
+ }
+ drm_modeset_unlock_all(drm);
+
+ return 0;
+}
+
+static int rockchip_drm_sys_resume(struct device *dev)
+{
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct drm_connector *connector;
+ enum drm_connector_status status;
+ bool changed = false;
+
+ if (!drm)
+ return 0;
+
+ drm_modeset_lock_all(drm);
+ list_for_each_entry(connector, &drm->mode_config.connector_list, head) {
+ int desired_mode = connector->dpms;
+
+ /*
+ * at suspend time, we save dpms to connector->dpms,
+ * restore the old_dpms, and at current time, the connector
+ * dpms status must be DRM_MODE_DPMS_OFF.
+ */
+ connector->dpms = DRM_MODE_DPMS_OFF;
+
+ /*
+ * If the connector has been disconnected during suspend,
+ * disconnect it from the encoder and leave it off. We'll notify
+ * userspace at the end.
+ */
+ if (desired_mode == DRM_MODE_DPMS_ON) {
+ status = connector->funcs->detect(connector, true);
+ if (status == connector_status_disconnected) {
+ connector->encoder = NULL;
+ connector->status = status;
+ changed = true;
+ continue;
+ }
+ }
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, desired_mode);
+ }
+ drm_modeset_unlock_all(drm);
+
+ drm_helper_resume_force_mode(drm);
+
+ if (changed)
+ drm_kms_helper_hotplug_event(drm);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops rockchip_drm_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(rockchip_drm_sys_suspend,
+ rockchip_drm_sys_resume)
+};
+
+/*
+ * @node: device tree node containing encoder input ports
+ * @encoder: drm_encoder
+ */
+int rockchip_drm_encoder_get_mux_id(struct device_node *node,
+ struct drm_encoder *encoder)
+{
+ struct device_node *ep = NULL;
+ struct drm_crtc *crtc = encoder->crtc;
+ struct of_endpoint endpoint;
+ struct device_node *port;
+ int ret;
+
+ if (!node || !crtc)
+ return -EINVAL;
+
+ do {
+ ep = of_graph_get_next_endpoint(node, ep);
+ if (!ep)
+ break;
+
+ port = of_graph_get_remote_port(ep);
+ of_node_put(port);
+ if (port == crtc->port) {
+ ret = of_graph_parse_endpoint(ep, &endpoint);
+ return ret ?: endpoint.id;
+ }
+ } while (ep);
+
+ return -EINVAL;
+}
+
+static int compare_of(struct device *dev, void *data)
+{
+ struct device_node *np = data;
+
+ return dev->of_node == np;
+}
+
+static void rockchip_add_endpoints(struct device *dev,
+ struct component_match **match,
+ struct device_node *port)
+{
+ struct device_node *ep, *remote;
+
+ for_each_child_of_node(port, ep) {
+ remote = of_graph_get_remote_port_parent(ep);
+ if (!remote || !of_device_is_available(remote)) {
+ of_node_put(remote);
+ continue;
+ } else if (!of_device_is_available(remote->parent)) {
+ dev_warn(dev, "parent device of %s is not available\n",
+ remote->full_name);
+ of_node_put(remote);
+ continue;
+ }
+
+ component_match_add(dev, match, compare_of, remote);
+ of_node_put(remote);
+ }
+}
+
+static int rockchip_drm_bind(struct device *dev)
+{
+ struct drm_device *drm;
+ int ret;
+
+ drm = drm_dev_alloc(&rockchip_drm_driver, dev);
+ if (!drm)
+ return -ENOMEM;
+
+ ret = drm_dev_set_unique(drm, "%s", dev_name(dev));
+ if (ret)
+ goto err_free;
+
+ ret = drm_dev_register(drm, 0);
+ if (ret)
+ goto err_free;
+
+ dev_set_drvdata(dev, drm);
+
+ return 0;
+
+err_free:
+ drm_dev_unref(drm);
+ return ret;
+}
+
+static void rockchip_drm_unbind(struct device *dev)
+{
+ struct drm_device *drm = dev_get_drvdata(dev);
+
+ drm_dev_unregister(drm);
+ drm_dev_unref(drm);
+ dev_set_drvdata(dev, NULL);
+}
+
+static const struct component_master_ops rockchip_drm_ops = {
+ .bind = rockchip_drm_bind,
+ .unbind = rockchip_drm_unbind,
+};
+
+static int rockchip_drm_platform_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct component_match *match = NULL;
+ struct device_node *np = dev->of_node;
+ struct device_node *port;
+ int i;
+
+ if (!np)
+ return -ENODEV;
+ /*
+ * Bind the crtc ports first, so that
+ * drm_of_find_possible_crtcs called from encoder .bind callbacks
+ * works as expected.
+ */
+ for (i = 0;; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ if (!of_device_is_available(port->parent)) {
+ of_node_put(port);
+ continue;
+ }
+
+ component_match_add(dev, &match, compare_of, port->parent);
+ of_node_put(port);
+ }
+
+ if (i == 0) {
+ dev_err(dev, "missing 'ports' property\n");
+ return -ENODEV;
+ }
+
+ if (!match) {
+ dev_err(dev, "No available vop found for display-subsystem.\n");
+ return -ENODEV;
+ }
+ /*
+ * For each bound crtc, bind the encoders attached to its
+ * remote endpoint.
+ */
+ for (i = 0;; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ if (!of_device_is_available(port->parent)) {
+ of_node_put(port);
+ continue;
+ }
+
+ rockchip_add_endpoints(dev, &match, port);
+ of_node_put(port);
+ }
+
+ return component_master_add_with_match(dev, &rockchip_drm_ops, match);
+}
+
+static int rockchip_drm_platform_remove(struct platform_device *pdev)
+{
+ component_master_del(&pdev->dev, &rockchip_drm_ops);
+
+ return 0;
+}
+
+static const struct of_device_id rockchip_drm_dt_ids[] = {
+ { .compatible = "rockchip,display-subsystem", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids);
+
+static struct platform_driver rockchip_drm_platform_driver = {
+ .probe = rockchip_drm_platform_probe,
+ .remove = rockchip_drm_platform_remove,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "rockchip-drm",
+ .of_match_table = rockchip_drm_dt_ids,
+ .pm = &rockchip_drm_pm_ops,
+ },
+};
+
+module_platform_driver(rockchip_drm_platform_driver);
+
+MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>");
+MODULE_DESCRIPTION("ROCKCHIP DRM Driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * based on exynos_drm_drv.h
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ROCKCHIP_DRM_DRV_H
+#define _ROCKCHIP_DRM_DRV_H
+
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem.h>
+
+#include <linux/module.h>
+#include <linux/component.h>
+
+#define ROCKCHIP_MAX_FB_BUFFER 3
+#define ROCKCHIP_MAX_CONNECTOR 2
+#define ROCKCHIP_MAX_CRTC 2
+
+struct drm_device;
+struct drm_connector;
+
+/*
+ * Rockchip drm private crtc funcs.
+ * @enable_vblank: enable crtc vblank irq.
+ * @disable_vblank: disable crtc vblank irq.
+ */
+struct rockchip_crtc_funcs {
+ int (*enable_vblank)(struct drm_crtc *crtc);
+ void (*disable_vblank)(struct drm_crtc *crtc);
+};
+
+/*
+ * Rockchip drm private structure.
+ *
+ * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
+ * @num_pipe: number of pipes for this device.
+ */
+struct rockchip_drm_private {
+ struct drm_fb_helper fbdev_helper;
+ struct drm_gem_object *fbdev_bo;
+ const struct rockchip_crtc_funcs *crtc_funcs[ROCKCHIP_MAX_CRTC];
+};
+
+int rockchip_register_crtc_funcs(struct drm_device *dev,
+ const struct rockchip_crtc_funcs *crtc_funcs,
+ int pipe);
+void rockchip_unregister_crtc_funcs(struct drm_device *dev, int pipe);
+int rockchip_drm_encoder_get_mux_id(struct device_node *node,
+ struct drm_encoder *encoder);
+int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type,
+ int out_mode);
+int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
+ struct device *dev);
+void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
+ struct device *dev);
+
+#endif /* _ROCKCHIP_DRM_DRV_H_ */
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <drm/drm.h>
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_gem.h"
+
+#define to_rockchip_fb(x) container_of(x, struct rockchip_drm_fb, fb)
+
+struct rockchip_drm_fb {
+ struct drm_framebuffer fb;
+ struct drm_gem_object *obj[ROCKCHIP_MAX_FB_BUFFER];
+};
+
+struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb,
+ unsigned int plane)
+{
+ struct rockchip_drm_fb *rk_fb = to_rockchip_fb(fb);
+
+ if (plane >= ROCKCHIP_MAX_FB_BUFFER)
+ return NULL;
+
+ return rk_fb->obj[plane];
+}
+EXPORT_SYMBOL_GPL(rockchip_fb_get_gem_obj);
+
+static void rockchip_drm_fb_destroy(struct drm_framebuffer *fb)
+{
+ struct rockchip_drm_fb *rockchip_fb = to_rockchip_fb(fb);
+ struct drm_gem_object *obj;
+ int i;
+
+ for (i = 0; i < ROCKCHIP_MAX_FB_BUFFER; i++) {
+ obj = rockchip_fb->obj[i];
+ if (obj)
+ drm_gem_object_unreference_unlocked(obj);
+ }
+
+ drm_framebuffer_cleanup(fb);
+ kfree(rockchip_fb);
+}
+
+static int rockchip_drm_fb_create_handle(struct drm_framebuffer *fb,
+ struct drm_file *file_priv,
+ unsigned int *handle)
+{
+ struct rockchip_drm_fb *rockchip_fb = to_rockchip_fb(fb);
+
+ return drm_gem_handle_create(file_priv,
+ rockchip_fb->obj[0], handle);
+}
+
+static struct drm_framebuffer_funcs rockchip_drm_fb_funcs = {
+ .destroy = rockchip_drm_fb_destroy,
+ .create_handle = rockchip_drm_fb_create_handle,
+};
+
+static struct rockchip_drm_fb *
+rockchip_fb_alloc(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object **obj, unsigned int num_planes)
+{
+ struct rockchip_drm_fb *rockchip_fb;
+ int ret;
+ int i;
+
+ rockchip_fb = kzalloc(sizeof(*rockchip_fb), GFP_KERNEL);
+ if (!rockchip_fb)
+ return ERR_PTR(-ENOMEM);
+
+ drm_helper_mode_fill_fb_struct(&rockchip_fb->fb, mode_cmd);
+
+ for (i = 0; i < num_planes; i++)
+ rockchip_fb->obj[i] = obj[i];
+
+ ret = drm_framebuffer_init(dev, &rockchip_fb->fb,
+ &rockchip_drm_fb_funcs);
+ if (ret) {
+ dev_err(dev->dev, "Failed to initialize framebuffer: %d\n",
+ ret);
+ kfree(rockchip_fb);
+ return ERR_PTR(ret);
+ }
+
+ return rockchip_fb;
+}
+
+static struct drm_framebuffer *
+rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
+ struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ struct rockchip_drm_fb *rockchip_fb;
+ struct drm_gem_object *objs[ROCKCHIP_MAX_FB_BUFFER];
+ struct drm_gem_object *obj;
+ unsigned int hsub;
+ unsigned int vsub;
+ int num_planes;
+ int ret;
+ int i;
+
+ hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format);
+ vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format);
+ num_planes = min(drm_format_num_planes(mode_cmd->pixel_format),
+ ROCKCHIP_MAX_FB_BUFFER);
+
+ for (i = 0; i < num_planes; i++) {
+ unsigned int width = mode_cmd->width / (i ? hsub : 1);
+ unsigned int height = mode_cmd->height / (i ? vsub : 1);
+ unsigned int min_size;
+
+ obj = drm_gem_object_lookup(dev, file_priv,
+ mode_cmd->handles[i]);
+ if (!obj) {
+ dev_err(dev->dev, "Failed to lookup GEM object\n");
+ ret = -ENXIO;
+ goto err_gem_object_unreference;
+ }
+
+ min_size = (height - 1) * mode_cmd->pitches[i] +
+ mode_cmd->offsets[i] +
+ width * drm_format_plane_cpp(mode_cmd->pixel_format, i);
+
+ if (obj->size < min_size) {
+ drm_gem_object_unreference_unlocked(obj);
+ ret = -EINVAL;
+ goto err_gem_object_unreference;
+ }
+ objs[i] = obj;
+ }
+
+ rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, objs, i);
+ if (IS_ERR(rockchip_fb)) {
+ ret = PTR_ERR(rockchip_fb);
+ goto err_gem_object_unreference;
+ }
+
+ return &rockchip_fb->fb;
+
+err_gem_object_unreference:
+ for (i--; i >= 0; i--)
+ drm_gem_object_unreference_unlocked(objs[i]);
+ return ERR_PTR(ret);
+}
+
+static void rockchip_drm_output_poll_changed(struct drm_device *dev)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+ struct drm_fb_helper *fb_helper = &private->fbdev_helper;
+
+ drm_fb_helper_hotplug_event(fb_helper);
+}
+
+static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = {
+ .fb_create = rockchip_user_fb_create,
+ .output_poll_changed = rockchip_drm_output_poll_changed,
+};
+
+struct drm_framebuffer *
+rockchip_drm_framebuffer_init(struct drm_device *dev,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj)
+{
+ struct rockchip_drm_fb *rockchip_fb;
+
+ rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, &obj, 1);
+ if (IS_ERR(rockchip_fb))
+ return NULL;
+
+ return &rockchip_fb->fb;
+}
+
+void rockchip_drm_mode_config_init(struct drm_device *dev)
+{
+ dev->mode_config.min_width = 0;
+ dev->mode_config.min_height = 0;
+
+ /*
+ * set max width and height as default value(4096x4096).
+ * this value would be used to check framebuffer size limitation
+ * at drm_mode_addfb().
+ */
+ dev->mode_config.max_width = 4096;
+ dev->mode_config.max_height = 4096;
+
+ dev->mode_config.funcs = &rockchip_drm_mode_config_funcs;
+}
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ROCKCHIP_DRM_FB_H
+#define _ROCKCHIP_DRM_FB_H
+
+struct drm_framebuffer *
+rockchip_drm_framebuffer_init(struct drm_device *dev,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj);
+void rockchip_drm_framebuffer_fini(struct drm_framebuffer *fb);
+
+void rockchip_drm_mode_config_init(struct drm_device *dev);
+
+struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb,
+ unsigned int plane);
+#endif /* _ROCKCHIP_DRM_FB_H */
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drm.h>
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_gem.h"
+#include "rockchip_drm_fb.h"
+
+#define PREFERRED_BPP 32
+#define to_drm_private(x) \
+ container_of(x, struct rockchip_drm_private, fbdev_helper)
+
+static int rockchip_fbdev_mmap(struct fb_info *info,
+ struct vm_area_struct *vma)
+{
+ struct drm_fb_helper *helper = info->par;
+ struct rockchip_drm_private *private = to_drm_private(helper);
+
+ return rockchip_gem_mmap_buf(private->fbdev_bo, vma);
+}
+
+static struct fb_ops rockchip_drm_fbdev_ops = {
+ .owner = THIS_MODULE,
+ .fb_mmap = rockchip_fbdev_mmap,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_check_var = drm_fb_helper_check_var,
+ .fb_set_par = drm_fb_helper_set_par,
+ .fb_blank = drm_fb_helper_blank,
+ .fb_pan_display = drm_fb_helper_pan_display,
+ .fb_setcmap = drm_fb_helper_setcmap,
+};
+
+static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct rockchip_drm_private *private = to_drm_private(helper);
+ struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+ struct drm_device *dev = helper->dev;
+ struct rockchip_gem_object *rk_obj;
+ struct drm_framebuffer *fb;
+ unsigned int bytes_per_pixel;
+ unsigned long offset;
+ struct fb_info *fbi;
+ size_t size;
+ int ret;
+
+ bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8);
+
+ mode_cmd.width = sizes->surface_width;
+ mode_cmd.height = sizes->surface_height;
+ mode_cmd.pitches[0] = sizes->surface_width * bytes_per_pixel;
+ mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
+
+ size = mode_cmd.pitches[0] * mode_cmd.height;
+
+ rk_obj = rockchip_gem_create_object(dev, size);
+ if (IS_ERR(rk_obj))
+ return -ENOMEM;
+
+ private->fbdev_bo = &rk_obj->base;
+
+ fbi = framebuffer_alloc(0, dev->dev);
+ if (!fbi) {
+ dev_err(dev->dev, "Failed to allocate framebuffer info.\n");
+ ret = -ENOMEM;
+ goto err_rockchip_gem_free_object;
+ }
+
+ helper->fb = rockchip_drm_framebuffer_init(dev, &mode_cmd,
+ private->fbdev_bo);
+ if (IS_ERR(helper->fb)) {
+ dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n");
+ ret = PTR_ERR(helper->fb);
+ goto err_framebuffer_release;
+ }
+
+ helper->fbdev = fbi;
+
+ fbi->par = helper;
+ fbi->flags = FBINFO_FLAG_DEFAULT;
+ fbi->fbops = &rockchip_drm_fbdev_ops;
+
+ ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
+ if (ret) {
+ dev_err(dev->dev, "Failed to allocate color map.\n");
+ goto err_drm_framebuffer_unref;
+ }
+
+ fb = helper->fb;
+ drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
+ drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height);
+
+ offset = fbi->var.xoffset * bytes_per_pixel;
+ offset += fbi->var.yoffset * fb->pitches[0];
+
+ dev->mode_config.fb_base = 0;
+ fbi->screen_base = rk_obj->kvaddr + offset;
+ fbi->screen_size = rk_obj->base.size;
+ fbi->fix.smem_len = rk_obj->base.size;
+
+ DRM_DEBUG_KMS("FB [%dx%d]-%d kvaddr=%p offset=%ld size=%d\n",
+ fb->width, fb->height, fb->depth, rk_obj->kvaddr,
+ offset, size);
+ return 0;
+
+err_drm_framebuffer_unref:
+ drm_framebuffer_unreference(helper->fb);
+err_framebuffer_release:
+ framebuffer_release(fbi);
+err_rockchip_gem_free_object:
+ rockchip_gem_free_object(&rk_obj->base);
+ return ret;
+}
+
+static const struct drm_fb_helper_funcs rockchip_drm_fb_helper_funcs = {
+ .fb_probe = rockchip_drm_fbdev_create,
+};
+
+int rockchip_drm_fbdev_init(struct drm_device *dev)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+ struct drm_fb_helper *helper;
+ unsigned int num_crtc;
+ int ret;
+
+ if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
+ return -EINVAL;
+
+ num_crtc = dev->mode_config.num_crtc;
+
+ helper = &private->fbdev_helper;
+
+ drm_fb_helper_prepare(dev, helper, &rockchip_drm_fb_helper_funcs);
+
+ ret = drm_fb_helper_init(dev, helper, num_crtc, ROCKCHIP_MAX_CONNECTOR);
+ if (ret < 0) {
+ dev_err(dev->dev, "Failed to initialize drm fb helper - %d.\n",
+ ret);
+ return ret;
+ }
+
+ ret = drm_fb_helper_single_add_all_connectors(helper);
+ if (ret < 0) {
+ dev_err(dev->dev, "Failed to add connectors - %d.\n", ret);
+ goto err_drm_fb_helper_fini;
+ }
+
+ /* disable all the possible outputs/crtcs before entering KMS mode */
+ drm_helper_disable_unused_functions(dev);
+
+ ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP);
+ if (ret < 0) {
+ dev_err(dev->dev, "Failed to set initial hw config - %d.\n",
+ ret);
+ goto err_drm_fb_helper_fini;
+ }
+
+ return 0;
+
+err_drm_fb_helper_fini:
+ drm_fb_helper_fini(helper);
+ return ret;
+}
+
+void rockchip_drm_fbdev_fini(struct drm_device *dev)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+ struct drm_fb_helper *helper;
+
+ helper = &private->fbdev_helper;
+
+ if (helper->fbdev) {
+ struct fb_info *info;
+ int ret;
+
+ info = helper->fbdev;
+ ret = unregister_framebuffer(info);
+ if (ret < 0)
+ DRM_DEBUG_KMS("failed unregister_framebuffer() - %d\n",
+ ret);
+
+ if (info->cmap.len)
+ fb_dealloc_cmap(&info->cmap);
+
+ framebuffer_release(info);
+ }
+
+ if (helper->fb)
+ drm_framebuffer_unreference(helper->fb);
+
+ drm_fb_helper_fini(helper);
+}
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ROCKCHIP_DRM_FBDEV_H
+#define _ROCKCHIP_DRM_FBDEV_H
+
+int rockchip_drm_fbdev_init(struct drm_device *dev);
+void rockchip_drm_fbdev_fini(struct drm_device *dev);
+
+#endif /* _ROCKCHIP_DRM_FBDEV_H */
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drm.h>
+#include <drm/drmP.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_vma_manager.h>
+
+#include <linux/dma-attrs.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_gem.h"
+
+static int rockchip_gem_alloc_buf(struct rockchip_gem_object *rk_obj)
+{
+ struct drm_gem_object *obj = &rk_obj->base;
+ struct drm_device *drm = obj->dev;
+
+ init_dma_attrs(&rk_obj->dma_attrs);
+ dma_set_attr(DMA_ATTR_WRITE_COMBINE, &rk_obj->dma_attrs);
+
+ /* TODO(djkurtz): Use DMA_ATTR_NO_KERNEL_MAPPING except for fbdev */
+ rk_obj->kvaddr = dma_alloc_attrs(drm->dev, obj->size,
+ &rk_obj->dma_addr, GFP_KERNEL,
+ &rk_obj->dma_attrs);
+ if (IS_ERR(rk_obj->kvaddr)) {
+ int ret = PTR_ERR(rk_obj->kvaddr);
+
+ DRM_ERROR("failed to allocate %#x byte dma buffer, %d",
+ obj->size, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void rockchip_gem_free_buf(struct rockchip_gem_object *rk_obj)
+{
+ struct drm_gem_object *obj = &rk_obj->base;
+ struct drm_device *drm = obj->dev;
+
+ dma_free_attrs(drm->dev, obj->size, rk_obj->kvaddr, rk_obj->dma_addr,
+ &rk_obj->dma_attrs);
+}
+
+int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
+ struct vm_area_struct *vma)
+{
+ struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
+ struct drm_device *drm = obj->dev;
+ unsigned long vm_size;
+
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
+ vm_size = vma->vm_end - vma->vm_start;
+
+ if (vm_size > obj->size)
+ return -EINVAL;
+
+ return dma_mmap_attrs(drm->dev, vma, rk_obj->kvaddr, rk_obj->dma_addr,
+ obj->size, &rk_obj->dma_attrs);
+}
+
+/* drm driver mmap file operations */
+int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_gem_object *obj;
+ struct drm_vma_offset_node *node;
+ int ret;
+
+ if (drm_device_is_unplugged(dev))
+ return -ENODEV;
+
+ mutex_lock(&dev->struct_mutex);
+
+ node = drm_vma_offset_exact_lookup(dev->vma_offset_manager,
+ vma->vm_pgoff,
+ vma_pages(vma));
+ if (!node) {
+ mutex_unlock(&dev->struct_mutex);
+ DRM_ERROR("failed to find vma node.\n");
+ return -EINVAL;
+ } else if (!drm_vma_node_is_allowed(node, filp)) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EACCES;
+ }
+
+ obj = container_of(node, struct drm_gem_object, vma_node);
+ ret = rockchip_gem_mmap_buf(obj, vma);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+
+struct rockchip_gem_object *
+ rockchip_gem_create_object(struct drm_device *drm, unsigned int size)
+{
+ struct rockchip_gem_object *rk_obj;
+ struct drm_gem_object *obj;
+ int ret;
+
+ size = round_up(size, PAGE_SIZE);
+
+ rk_obj = kzalloc(sizeof(*rk_obj), GFP_KERNEL);
+ if (!rk_obj)
+ return ERR_PTR(-ENOMEM);
+
+ obj = &rk_obj->base;
+
+ drm_gem_private_object_init(drm, obj, size);
+
+ ret = rockchip_gem_alloc_buf(rk_obj);
+ if (ret)
+ goto err_free_rk_obj;
+
+ return rk_obj;
+
+err_free_rk_obj:
+ kfree(rk_obj);
+ return ERR_PTR(ret);
+}
+
+/*
+ * rockchip_gem_free_object - (struct drm_driver)->gem_free_object callback
+ * function
+ */
+void rockchip_gem_free_object(struct drm_gem_object *obj)
+{
+ struct rockchip_gem_object *rk_obj;
+
+ drm_gem_free_mmap_offset(obj);
+
+ rk_obj = to_rockchip_obj(obj);
+
+ rockchip_gem_free_buf(rk_obj);
+
+ kfree(rk_obj);
+}
+
+/*
+ * rockchip_gem_create_with_handle - allocate an object with the given
+ * size and create a gem handle on it
+ *
+ * returns a struct rockchip_gem_object* on success or ERR_PTR values
+ * on failure.
+ */
+static struct rockchip_gem_object *
+rockchip_gem_create_with_handle(struct drm_file *file_priv,
+ struct drm_device *drm, unsigned int size,
+ unsigned int *handle)
+{
+ struct rockchip_gem_object *rk_obj;
+ struct drm_gem_object *obj;
+ int ret;
+
+ rk_obj = rockchip_gem_create_object(drm, size);
+ if (IS_ERR(rk_obj))
+ return ERR_CAST(rk_obj);
+
+ obj = &rk_obj->base;
+
+ /*
+ * allocate a id of idr table where the obj is registered
+ * and handle has the id what user can see.
+ */
+ ret = drm_gem_handle_create(file_priv, obj, handle);
+ if (ret)
+ goto err_handle_create;
+
+ /* drop reference from allocate - handle holds it now. */
+ drm_gem_object_unreference_unlocked(obj);
+
+ return rk_obj;
+
+err_handle_create:
+ rockchip_gem_free_object(obj);
+
+ return ERR_PTR(ret);
+}
+
+int rockchip_gem_dumb_map_offset(struct drm_file *file_priv,
+ struct drm_device *dev, uint32_t handle,
+ uint64_t *offset)
+{
+ struct drm_gem_object *obj;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+
+ obj = drm_gem_object_lookup(dev, file_priv, handle);
+ if (!obj) {
+ DRM_ERROR("failed to lookup gem object.\n");
+ ret = -EINVAL;
+ goto unlock;
+ }
+
+ ret = drm_gem_create_mmap_offset(obj);
+ if (ret)
+ goto out;
+
+ *offset = drm_vma_node_offset_addr(&obj->vma_node);
+ DRM_DEBUG_KMS("offset = 0x%llx\n", *offset);
+
+out:
+ drm_gem_object_unreference(obj);
+unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
+
+/*
+ * rockchip_gem_dumb_create - (struct drm_driver)->dumb_create callback
+ * function
+ *
+ * This aligns the pitch and size arguments to the minimum required. wrap
+ * this into your own function if you need bigger alignment.
+ */
+int rockchip_gem_dumb_create(struct drm_file *file_priv,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ struct rockchip_gem_object *rk_obj;
+ int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
+
+ /*
+ * align to 64 bytes since Mali requires it.
+ */
+ min_pitch = ALIGN(min_pitch, 64);
+
+ if (args->pitch < min_pitch)
+ args->pitch = min_pitch;
+
+ if (args->size < args->pitch * args->height)
+ args->size = args->pitch * args->height;
+
+ rk_obj = rockchip_gem_create_with_handle(file_priv, dev, args->size,
+ &args->handle);
+
+ return PTR_ERR_OR_ZERO(rk_obj);
+}
+
+/*
+ * Allocate a sg_table for this GEM object.
+ * Note: Both the table's contents, and the sg_table itself must be freed by
+ * the caller.
+ * Returns a pointer to the newly allocated sg_table, or an ERR_PTR() error.
+ */
+struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj)
+{
+ struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
+ struct drm_device *drm = obj->dev;
+ struct sg_table *sgt;
+ int ret;
+
+ sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
+ if (!sgt)
+ return ERR_PTR(-ENOMEM);
+
+ ret = dma_get_sgtable_attrs(drm->dev, sgt, rk_obj->kvaddr,
+ rk_obj->dma_addr, obj->size,
+ &rk_obj->dma_attrs);
+ if (ret) {
+ DRM_ERROR("failed to allocate sgt, %d\n", ret);
+ kfree(sgt);
+ return ERR_PTR(ret);
+ }
+
+ return sgt;
+}
+
+void *rockchip_gem_prime_vmap(struct drm_gem_object *obj)
+{
+ struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
+
+ return rk_obj->kvaddr;
+}
+
+void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
+{
+ /* Nothing to do */
+}
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ROCKCHIP_DRM_GEM_H
+#define _ROCKCHIP_DRM_GEM_H
+
+#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
+
+struct rockchip_gem_object {
+ struct drm_gem_object base;
+ unsigned int flags;
+
+ void *kvaddr;
+ dma_addr_t dma_addr;
+ struct dma_attrs dma_attrs;
+};
+
+struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
+struct drm_gem_object *
+rockchip_gem_prime_import_sg_table(struct drm_device *dev, size_t size,
+ struct sg_table *sgt);
+void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);
+void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
+
+/* drm driver mmap file operations */
+int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
+
+/* mmap a gem object to userspace. */
+int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
+ struct vm_area_struct *vma);
+
+struct rockchip_gem_object *
+ rockchip_gem_create_object(struct drm_device *drm, unsigned int size);
+
+void rockchip_gem_free_object(struct drm_gem_object *obj);
+
+int rockchip_gem_dumb_create(struct drm_file *file_priv,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args);
+int rockchip_gem_dumb_map_offset(struct drm_file *file_priv,
+ struct drm_device *dev, uint32_t handle,
+ uint64_t *offset);
+#endif /* _ROCKCHIP_DRM_GEM_H */
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drm.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/component.h>
+
+#include <linux/reset.h>
+#include <linux/delay.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_gem.h"
+#include "rockchip_drm_fb.h"
+#include "rockchip_drm_vop.h"
+
+#define VOP_REG(off, _mask, s) \
+ {.offset = off, \
+ .mask = _mask, \
+ .shift = s,}
+
+#define __REG_SET_RELAXED(x, off, mask, shift, v) \
+ vop_mask_write_relaxed(x, off, (mask) << shift, (v) << shift)
+#define __REG_SET_NORMAL(x, off, mask, shift, v) \
+ vop_mask_write(x, off, (mask) << shift, (v) << shift)
+
+#define REG_SET(x, base, reg, v, mode) \
+ __REG_SET_##mode(x, base + reg.offset, reg.mask, reg.shift, v)
+
+#define VOP_WIN_SET(x, win, name, v) \
+ REG_SET(x, win->base, win->phy->name, v, RELAXED)
+#define VOP_CTRL_SET(x, name, v) \
+ REG_SET(x, 0, (x)->data->ctrl->name, v, NORMAL)
+
+#define VOP_WIN_GET(x, win, name) \
+ vop_read_reg(x, win->base, &win->phy->name)
+
+#define VOP_WIN_GET_YRGBADDR(vop, win) \
+ vop_readl(vop, win->base + win->phy->yrgb_mst.offset)
+
+#define to_vop(x) container_of(x, struct vop, crtc)
+#define to_vop_win(x) container_of(x, struct vop_win, base)
+
+struct vop_win_state {
+ struct list_head head;
+ struct drm_framebuffer *fb;
+ dma_addr_t yrgb_mst;
+ struct drm_pending_vblank_event *event;
+};
+
+struct vop_win {
+ struct drm_plane base;
+ const struct vop_win_data *data;
+ struct vop *vop;
+
+ struct list_head pending;
+ struct vop_win_state *active;
+};
+
+struct vop {
+ struct drm_crtc crtc;
+ struct device *dev;
+ struct drm_device *drm_dev;
+ unsigned int dpms;
+
+ int connector_type;
+ int connector_out_mode;
+
+ /* mutex vsync_ work */
+ struct mutex vsync_mutex;
+ bool vsync_work_pending;
+
+ const struct vop_data *data;
+
+ uint32_t *regsbak;
+ void __iomem *regs;
+
+ /* physical map length of vop register */
+ uint32_t len;
+
+ /* one time only one process allowed to config the register */
+ spinlock_t reg_lock;
+ /* lock vop irq reg */
+ spinlock_t irq_lock;
+
+ unsigned int irq;
+
+ /* vop AHP clk */
+ struct clk *hclk;
+ /* vop dclk */
+ struct clk *dclk;
+ /* vop share memory frequency */
+ struct clk *aclk;
+
+ /* vop dclk reset */
+ struct reset_control *dclk_rst;
+
+ int pipe;
+
+ struct vop_win win[];
+};
+
+enum vop_data_format {
+ VOP_FMT_ARGB8888 = 0,
+ VOP_FMT_RGB888,
+ VOP_FMT_RGB565,
+ VOP_FMT_YUV420SP = 4,
+ VOP_FMT_YUV422SP,
+ VOP_FMT_YUV444SP,
+};
+
+struct vop_reg_data {
+ uint32_t offset;
+ uint32_t value;
+};
+
+struct vop_reg {
+ uint32_t offset;
+ uint32_t shift;
+ uint32_t mask;
+};
+
+struct vop_ctrl {
+ struct vop_reg standby;
+ struct vop_reg data_blank;
+ struct vop_reg gate_en;
+ struct vop_reg mmu_en;
+ struct vop_reg rgb_en;
+ struct vop_reg edp_en;
+ struct vop_reg hdmi_en;
+ struct vop_reg mipi_en;
+ struct vop_reg out_mode;
+ struct vop_reg dither_down;
+ struct vop_reg dither_up;
+ struct vop_reg pin_pol;
+
+ struct vop_reg htotal_pw;
+ struct vop_reg hact_st_end;
+ struct vop_reg vtotal_pw;
+ struct vop_reg vact_st_end;
+ struct vop_reg hpost_st_end;
+ struct vop_reg vpost_st_end;
+};
+
+struct vop_win_phy {
+ const uint32_t *data_formats;
+ uint32_t nformats;
+
+ struct vop_reg enable;
+ struct vop_reg format;
+ struct vop_reg act_info;
+ struct vop_reg dsp_info;
+ struct vop_reg dsp_st;
+ struct vop_reg yrgb_mst;
+ struct vop_reg uv_mst;
+ struct vop_reg yrgb_vir;
+ struct vop_reg uv_vir;
+
+ struct vop_reg dst_alpha_ctl;
+ struct vop_reg src_alpha_ctl;
+};
+
+struct vop_win_data {
+ uint32_t base;
+ const struct vop_win_phy *phy;
+ enum drm_plane_type type;
+};
+
+struct vop_data {
+ const struct vop_reg_data *init_table;
+ unsigned int table_size;
+ const struct vop_ctrl *ctrl;
+ const struct vop_win_data *win;
+ unsigned int win_size;
+};
+
+static const uint32_t formats_01[] = {
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_NV12,
+ DRM_FORMAT_NV16,
+ DRM_FORMAT_NV24,
+};
+
+static const uint32_t formats_234[] = {
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_RGB565,
+};
+
+static const struct vop_win_phy win01_data = {
+ .data_formats = formats_01,
+ .nformats = ARRAY_SIZE(formats_01),
+ .enable = VOP_REG(WIN0_CTRL0, 0x1, 0),
+ .format = VOP_REG(WIN0_CTRL0, 0x7, 1),
+ .act_info = VOP_REG(WIN0_ACT_INFO, 0x1fff1fff, 0),
+ .dsp_info = VOP_REG(WIN0_DSP_INFO, 0x0fff0fff, 0),
+ .dsp_st = VOP_REG(WIN0_DSP_ST, 0x1fff1fff, 0),
+ .yrgb_mst = VOP_REG(WIN0_YRGB_MST, 0xffffffff, 0),
+ .uv_mst = VOP_REG(WIN0_CBR_MST, 0xffffffff, 0),
+ .yrgb_vir = VOP_REG(WIN0_VIR, 0x3fff, 0),
+ .uv_vir = VOP_REG(WIN0_VIR, 0x3fff, 16),
+ .src_alpha_ctl = VOP_REG(WIN0_SRC_ALPHA_CTRL, 0xff, 0),
+ .dst_alpha_ctl = VOP_REG(WIN0_DST_ALPHA_CTRL, 0xff, 0),
+};
+
+static const struct vop_win_phy win23_data = {
+ .data_formats = formats_234,
+ .nformats = ARRAY_SIZE(formats_234),
+ .enable = VOP_REG(WIN2_CTRL0, 0x1, 0),
+ .format = VOP_REG(WIN2_CTRL0, 0x7, 1),
+ .dsp_info = VOP_REG(WIN2_DSP_INFO0, 0x0fff0fff, 0),
+ .dsp_st = VOP_REG(WIN2_DSP_ST0, 0x1fff1fff, 0),
+ .yrgb_mst = VOP_REG(WIN2_MST0, 0xffffffff, 0),
+ .yrgb_vir = VOP_REG(WIN2_VIR0_1, 0x1fff, 0),
+ .src_alpha_ctl = VOP_REG(WIN2_SRC_ALPHA_CTRL, 0xff, 0),
+ .dst_alpha_ctl = VOP_REG(WIN2_DST_ALPHA_CTRL, 0xff, 0),
+};
+
+static const struct vop_win_phy cursor_data = {
+ .data_formats = formats_234,
+ .nformats = ARRAY_SIZE(formats_234),
+ .enable = VOP_REG(HWC_CTRL0, 0x1, 0),
+ .format = VOP_REG(HWC_CTRL0, 0x7, 1),
+ .dsp_st = VOP_REG(HWC_DSP_ST, 0x1fff1fff, 0),
+ .yrgb_mst = VOP_REG(HWC_MST, 0xffffffff, 0),
+};
+
+static const struct vop_ctrl ctrl_data = {
+ .standby = VOP_REG(SYS_CTRL, 0x1, 22),
+ .gate_en = VOP_REG(SYS_CTRL, 0x1, 23),
+ .mmu_en = VOP_REG(SYS_CTRL, 0x1, 20),
+ .rgb_en = VOP_REG(SYS_CTRL, 0x1, 12),
+ .hdmi_en = VOP_REG(SYS_CTRL, 0x1, 13),
+ .edp_en = VOP_REG(SYS_CTRL, 0x1, 14),
+ .mipi_en = VOP_REG(SYS_CTRL, 0x1, 15),
+ .dither_down = VOP_REG(DSP_CTRL1, 0xf, 1),
+ .dither_up = VOP_REG(DSP_CTRL1, 0x1, 6),
+ .data_blank = VOP_REG(DSP_CTRL0, 0x1, 19),
+ .out_mode = VOP_REG(DSP_CTRL0, 0xf, 0),
+ .pin_pol = VOP_REG(DSP_CTRL0, 0xf, 4),
+ .htotal_pw = VOP_REG(DSP_HTOTAL_HS_END, 0x1fff1fff, 0),
+ .hact_st_end = VOP_REG(DSP_HACT_ST_END, 0x1fff1fff, 0),
+ .vtotal_pw = VOP_REG(DSP_VTOTAL_VS_END, 0x1fff1fff, 0),
+ .vact_st_end = VOP_REG(DSP_VACT_ST_END, 0x1fff1fff, 0),
+ .hpost_st_end = VOP_REG(POST_DSP_HACT_INFO, 0x1fff1fff, 0),
+ .vpost_st_end = VOP_REG(POST_DSP_VACT_INFO, 0x1fff1fff, 0),
+};
+
+static const struct vop_reg_data vop_init_reg_table[] = {
+ {SYS_CTRL, 0x00c00000},
+ {DSP_CTRL0, 0x00000000},
+ {WIN0_CTRL0, 0x00000080},
+ {WIN1_CTRL0, 0x00000080},
+};
+
+/*
+ * Note: rk3288 has a dedicated 'cursor' window, however, that window requires
+ * special support to get alpha blending working. For now, just use overlay
+ * window 1 for the drm cursor.
+ */
+static const struct vop_win_data rk3288_vop_win_data[] = {
+ { .base = 0x00, .phy = &win01_data, .type = DRM_PLANE_TYPE_PRIMARY },
+ { .base = 0x40, .phy = &win01_data, .type = DRM_PLANE_TYPE_CURSOR },
+ { .base = 0x00, .phy = &win23_data, .type = DRM_PLANE_TYPE_OVERLAY },
+ { .base = 0x50, .phy = &win23_data, .type = DRM_PLANE_TYPE_OVERLAY },
+ { .base = 0x00, .phy = &cursor_data, .type = DRM_PLANE_TYPE_OVERLAY },
+};
+
+static const struct vop_data rk3288_vop = {
+ .init_table = vop_init_reg_table,
+ .table_size = ARRAY_SIZE(vop_init_reg_table),
+ .ctrl = &ctrl_data,
+ .win = rk3288_vop_win_data,
+ .win_size = ARRAY_SIZE(rk3288_vop_win_data),
+};
+
+static const struct of_device_id vop_driver_dt_match[] = {
+ { .compatible = "rockchip,rk3288-vop",
+ .data = &rk3288_vop },
+ {},
+};
+
+static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v)
+{
+ writel(v, vop->regs + offset);
+ vop->regsbak[offset >> 2] = v;
+}
+
+static inline uint32_t vop_readl(struct vop *vop, uint32_t offset)
+{
+ return readl(vop->regs + offset);
+}
+
+static inline uint32_t vop_read_reg(struct vop *vop, uint32_t base,
+ const struct vop_reg *reg)
+{
+ return (vop_readl(vop, base + reg->offset) >> reg->shift) & reg->mask;
+}
+
+static inline void vop_cfg_done(struct vop *vop)
+{
+ writel(0x01, vop->regs + REG_CFG_DONE);
+}
+
+static inline void vop_mask_write(struct vop *vop, uint32_t offset,
+ uint32_t mask, uint32_t v)
+{
+ if (mask) {
+ uint32_t cached_val = vop->regsbak[offset >> 2];
+
+ cached_val = (cached_val & ~mask) | v;
+ writel(cached_val, vop->regs + offset);
+ vop->regsbak[offset >> 2] = cached_val;
+ }
+}
+
+static inline void vop_mask_write_relaxed(struct vop *vop, uint32_t offset,
+ uint32_t mask, uint32_t v)
+{
+ if (mask) {
+ uint32_t cached_val = vop->regsbak[offset >> 2];
+
+ cached_val = (cached_val & ~mask) | v;
+ writel_relaxed(cached_val, vop->regs + offset);
+ vop->regsbak[offset >> 2] = cached_val;
+ }
+}
+
+static enum vop_data_format vop_convert_format(uint32_t format)
+{
+ switch (format) {
+ case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_ARGB8888:
+ return VOP_FMT_ARGB8888;
+ case DRM_FORMAT_RGB888:
+ return VOP_FMT_RGB888;
+ case DRM_FORMAT_RGB565:
+ return VOP_FMT_RGB565;
+ case DRM_FORMAT_NV12:
+ return VOP_FMT_YUV420SP;
+ case DRM_FORMAT_NV16:
+ return VOP_FMT_YUV422SP;
+ case DRM_FORMAT_NV24:
+ return VOP_FMT_YUV444SP;
+ default:
+ DRM_ERROR("unsupport format[%08x]\n", format);
+ return -EINVAL;
+ }
+}
+
+static bool is_alpha_support(uint32_t format)
+{
+ switch (format) {
+ case DRM_FORMAT_ARGB8888:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static void vop_enable(struct drm_crtc *crtc)
+{
+ struct vop *vop = to_vop(crtc);
+ int ret;
+
+ ret = clk_enable(vop->hclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
+ return;
+ }
+
+ ret = clk_enable(vop->dclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to enable dclk - %d\n", ret);
+ goto err_disable_hclk;
+ }
+
+ ret = clk_enable(vop->aclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to enable aclk - %d\n", ret);
+ goto err_disable_dclk;
+ }
+
+ /*
+ * Slave iommu shares power, irq and clock with vop. It was associated
+ * automatically with this master device via common driver code.
+ * Now that we have enabled the clock we attach it to the shared drm
+ * mapping.
+ */
+ ret = rockchip_drm_dma_attach_device(vop->drm_dev, vop->dev);
+ if (ret) {
+ dev_err(vop->dev, "failed to attach dma mapping, %d\n", ret);
+ goto err_disable_aclk;
+ }
+
+ spin_lock(&vop->reg_lock);
+
+ VOP_CTRL_SET(vop, standby, 0);
+
+ spin_unlock(&vop->reg_lock);
+
+ enable_irq(vop->irq);
+
+ drm_vblank_on(vop->drm_dev, vop->pipe);
+
+ return;
+
+err_disable_aclk:
+ clk_disable(vop->aclk);
+err_disable_dclk:
+ clk_disable(vop->dclk);
+err_disable_hclk:
+ clk_disable(vop->hclk);
+}
+
+static void vop_disable(struct drm_crtc *crtc)
+{
+ struct vop *vop = to_vop(crtc);
+
+ drm_vblank_off(crtc->dev, vop->pipe);
+
+ disable_irq(vop->irq);
+
+ /*
+ * TODO: Since standby doesn't take effect until the next vblank,
+ * when we turn off dclk below, the vop is probably still active.
+ */
+ spin_lock(&vop->reg_lock);
+
+ VOP_CTRL_SET(vop, standby, 1);
+
+ spin_unlock(&vop->reg_lock);
+ /*
+ * disable dclk to stop frame scan, so we can safely detach iommu,
+ */
+ clk_disable(vop->dclk);
+
+ rockchip_drm_dma_detach_device(vop->drm_dev, vop->dev);
+
+ clk_disable(vop->aclk);
+ clk_disable(vop->hclk);
+}
+
+/*
+ * Caller must hold vsync_mutex.
+ */
+static struct drm_framebuffer *vop_win_last_pending_fb(struct vop_win *vop_win)
+{
+ struct vop_win_state *last;
+ struct vop_win_state *active = vop_win->active;
+
+ if (list_empty(&vop_win->pending))
+ return active ? active->fb : NULL;
+
+ last = list_last_entry(&vop_win->pending, struct vop_win_state, head);
+ return last ? last->fb : NULL;
+}
+
+/*
+ * Caller must hold vsync_mutex.
+ */
+static int vop_win_queue_fb(struct vop_win *vop_win,
+ struct drm_framebuffer *fb, dma_addr_t yrgb_mst,
+ struct drm_pending_vblank_event *event)
+{
+ struct vop_win_state *state;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return -ENOMEM;
+
+ state->fb = fb;
+ state->yrgb_mst = yrgb_mst;
+ state->event = event;
+
+ list_add_tail(&state->head, &vop_win->pending);
+
+ return 0;
+}
+
+static int vop_update_plane_event(struct drm_plane *plane,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb, int crtc_x,
+ int crtc_y, unsigned int crtc_w,
+ unsigned int crtc_h, uint32_t src_x,
+ uint32_t src_y, uint32_t src_w,
+ uint32_t src_h,
+ struct drm_pending_vblank_event *event)
+{
+ struct vop_win *vop_win = to_vop_win(plane);
+ const struct vop_win_data *win = vop_win->data;
+ struct vop *vop = to_vop(crtc);
+ struct drm_gem_object *obj;
+ struct rockchip_gem_object *rk_obj;
+ unsigned long offset;
+ unsigned int actual_w;
+ unsigned int actual_h;
+ unsigned int dsp_stx;
+ unsigned int dsp_sty;
+ unsigned int y_vir_stride;
+ dma_addr_t yrgb_mst;
+ enum vop_data_format format;
+ uint32_t val;
+ bool is_alpha;
+ bool visible;
+ int ret;
+ struct drm_rect dest = {
+ .x1 = crtc_x,
+ .y1 = crtc_y,
+ .x2 = crtc_x + crtc_w,
+ .y2 = crtc_y + crtc_h,
+ };
+ struct drm_rect src = {
+ /* 16.16 fixed point */
+ .x1 = src_x,
+ .y1 = src_y,
+ .x2 = src_x + src_w,
+ .y2 = src_y + src_h,
+ };
+ const struct drm_rect clip = {
+ .x2 = crtc->mode.hdisplay,
+ .y2 = crtc->mode.vdisplay,
+ };
+ bool can_position = plane->type != DRM_PLANE_TYPE_PRIMARY;
+
+ ret = drm_plane_helper_check_update(plane, crtc, fb,
+ &src, &dest, &clip,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ can_position, false, &visible);
+ if (ret)
+ return ret;
+
+ if (!visible)
+ return 0;
+
+ is_alpha = is_alpha_support(fb->pixel_format);
+ format = vop_convert_format(fb->pixel_format);
+ if (format < 0)
+ return format;
+
+ obj = rockchip_fb_get_gem_obj(fb, 0);
+ if (!obj) {
+ DRM_ERROR("fail to get rockchip gem object from framebuffer\n");
+ return -EINVAL;
+ }
+
+ rk_obj = to_rockchip_obj(obj);
+
+ actual_w = (src.x2 - src.x1) >> 16;
+ actual_h = (src.y2 - src.y1) >> 16;
+ crtc_x = max(0, crtc_x);
+ crtc_y = max(0, crtc_y);
+
+ dsp_stx = crtc_x + crtc->mode.htotal - crtc->mode.hsync_start;
+ dsp_sty = crtc_y + crtc->mode.vtotal - crtc->mode.vsync_start;
+
+ offset = (src.x1 >> 16) * (fb->bits_per_pixel >> 3);
+ offset += (src.y1 >> 16) * fb->pitches[0];
+ yrgb_mst = rk_obj->dma_addr + offset;
+
+ y_vir_stride = fb->pitches[0] / (fb->bits_per_pixel >> 3);
+
+ /*
+ * If this plane update changes the plane's framebuffer, (or more
+ * precisely, if this update has a different framebuffer than the last
+ * update), enqueue it so we can track when it completes.
+ *
+ * Only when we discover that this update has completed, can we
+ * unreference any previous framebuffers.
+ */
+ mutex_lock(&vop->vsync_mutex);
+ if (fb != vop_win_last_pending_fb(vop_win)) {
+ ret = drm_vblank_get(plane->dev, vop->pipe);
+ if (ret) {
+ DRM_ERROR("failed to get vblank, %d\n", ret);
+ mutex_unlock(&vop->vsync_mutex);
+ return ret;
+ }
+
+ drm_framebuffer_reference(fb);
+
+ ret = vop_win_queue_fb(vop_win, fb, yrgb_mst, event);
+ if (ret) {
+ drm_vblank_put(plane->dev, vop->pipe);
+ mutex_unlock(&vop->vsync_mutex);
+ return ret;
+ }
+
+ vop->vsync_work_pending = true;
+ }
+ mutex_unlock(&vop->vsync_mutex);
+
+ spin_lock(&vop->reg_lock);
+
+ VOP_WIN_SET(vop, win, format, format);
+ VOP_WIN_SET(vop, win, yrgb_vir, y_vir_stride);
+ VOP_WIN_SET(vop, win, yrgb_mst, yrgb_mst);
+ val = (actual_h - 1) << 16;
+ val |= (actual_w - 1) & 0xffff;
+ VOP_WIN_SET(vop, win, act_info, val);
+ VOP_WIN_SET(vop, win, dsp_info, val);
+ val = (dsp_sty - 1) << 16;
+ val |= (dsp_stx - 1) & 0xffff;
+ VOP_WIN_SET(vop, win, dsp_st, val);
+
+ if (is_alpha) {
+ VOP_WIN_SET(vop, win, dst_alpha_ctl,
+ DST_FACTOR_M0(ALPHA_SRC_INVERSE));
+ val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) |
+ SRC_ALPHA_M0(ALPHA_STRAIGHT) |
+ SRC_BLEND_M0(ALPHA_PER_PIX) |
+ SRC_ALPHA_CAL_M0(ALPHA_NO_SATURATION) |
+ SRC_FACTOR_M0(ALPHA_ONE);
+ VOP_WIN_SET(vop, win, src_alpha_ctl, val);
+ } else {
+ VOP_WIN_SET(vop, win, src_alpha_ctl, SRC_ALPHA_EN(0));
+ }
+
+ VOP_WIN_SET(vop, win, enable, 1);
+
+ vop_cfg_done(vop);
+ spin_unlock(&vop->reg_lock);
+
+ return 0;
+}
+
+static int vop_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+ struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y, uint32_t src_w,
+ uint32_t src_h)
+{
+ return vop_update_plane_event(plane, crtc, fb, crtc_x, crtc_y, crtc_w,
+ crtc_h, src_x, src_y, src_w, src_h,
+ NULL);
+}
+
+static int vop_update_primary_plane(struct drm_crtc *crtc,
+ struct drm_pending_vblank_event *event)
+{
+ unsigned int crtc_w, crtc_h;
+
+ crtc_w = crtc->primary->fb->width - crtc->x;
+ crtc_h = crtc->primary->fb->height - crtc->y;
+
+ return vop_update_plane_event(crtc->primary, crtc, crtc->primary->fb,
+ 0, 0, crtc_w, crtc_h, crtc->x << 16,
+ crtc->y << 16, crtc_w << 16,
+ crtc_h << 16, event);
+}
+
+static int vop_disable_plane(struct drm_plane *plane)
+{
+ struct vop_win *vop_win = to_vop_win(plane);
+ const struct vop_win_data *win = vop_win->data;
+ struct vop *vop;
+ int ret;
+
+ if (!plane->crtc)
+ return 0;
+
+ vop = to_vop(plane->crtc);
+
+ ret = drm_vblank_get(plane->dev, vop->pipe);
+ if (ret) {
+ DRM_ERROR("failed to get vblank, %d\n", ret);
+ return ret;
+ }
+
+ mutex_lock(&vop->vsync_mutex);
+
+ ret = vop_win_queue_fb(vop_win, NULL, 0, NULL);
+ if (ret) {
+ drm_vblank_put(plane->dev, vop->pipe);
+ mutex_unlock(&vop->vsync_mutex);
+ return ret;
+ }
+
+ vop->vsync_work_pending = true;
+ mutex_unlock(&vop->vsync_mutex);
+
+ spin_lock(&vop->reg_lock);
+ VOP_WIN_SET(vop, win, enable, 0);
+ vop_cfg_done(vop);
+ spin_unlock(&vop->reg_lock);
+
+ return 0;
+}
+
+static void vop_plane_destroy(struct drm_plane *plane)
+{
+ vop_disable_plane(plane);
+ drm_plane_cleanup(plane);
+}
+
+static const struct drm_plane_funcs vop_plane_funcs = {
+ .update_plane = vop_update_plane,
+ .disable_plane = vop_disable_plane,
+ .destroy = vop_plane_destroy,
+};
+
+int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc,
+ int connector_type,
+ int out_mode)
+{
+ struct vop *vop = to_vop(crtc);
+
+ vop->connector_type = connector_type;
+ vop->connector_out_mode = out_mode;
+
+ return 0;
+}
+
+static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+ struct vop *vop = to_vop(crtc);
+ unsigned long flags;
+
+ if (vop->dpms != DRM_MODE_DPMS_ON)
+ return -EPERM;
+
+ spin_lock_irqsave(&vop->irq_lock, flags);
+
+ vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(1));
+
+ spin_unlock_irqrestore(&vop->irq_lock, flags);
+
+ return 0;
+}
+
+static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+ struct vop *vop = to_vop(crtc);
+ unsigned long flags;
+
+ if (vop->dpms != DRM_MODE_DPMS_ON)
+ return;
+ spin_lock_irqsave(&vop->irq_lock, flags);
+ vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(0));
+ spin_unlock_irqrestore(&vop->irq_lock, flags);
+}
+
+static const struct rockchip_crtc_funcs private_crtc_funcs = {
+ .enable_vblank = vop_crtc_enable_vblank,
+ .disable_vblank = vop_crtc_disable_vblank,
+};
+
+static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct vop *vop = to_vop(crtc);
+
+ DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
+
+ if (vop->dpms == mode) {
+ DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
+ return;
+ }
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ vop_enable(crtc);
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ vop_disable(crtc);
+ break;
+ default:
+ DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+ break;
+ }
+
+ vop->dpms = mode;
+}
+
+static void vop_crtc_prepare(struct drm_crtc *crtc)
+{
+ vop_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0)
+ return false;
+
+ return true;
+}
+
+static int vop_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ int ret;
+
+ crtc->x = x;
+ crtc->y = y;
+
+ ret = vop_update_primary_plane(crtc, NULL);
+ if (ret < 0) {
+ DRM_ERROR("fail to update plane\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int vop_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y, struct drm_framebuffer *fb)
+{
+ struct vop *vop = to_vop(crtc);
+ u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start;
+ u16 hdisplay = adjusted_mode->hdisplay;
+ u16 htotal = adjusted_mode->htotal;
+ u16 hact_st = adjusted_mode->htotal - adjusted_mode->hsync_start;
+ u16 hact_end = hact_st + hdisplay;
+ u16 vdisplay = adjusted_mode->vdisplay;
+ u16 vtotal = adjusted_mode->vtotal;
+ u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start;
+ u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start;
+ u16 vact_end = vact_st + vdisplay;
+ int ret;
+ uint32_t val;
+
+ /*
+ * disable dclk to stop frame scan, so that we can safe config mode and
+ * enable iommu.
+ */
+ clk_disable(vop->dclk);
+
+ switch (vop->connector_type) {
+ case DRM_MODE_CONNECTOR_LVDS:
+ VOP_CTRL_SET(vop, rgb_en, 1);
+ break;
+ case DRM_MODE_CONNECTOR_eDP:
+ VOP_CTRL_SET(vop, edp_en, 1);
+ break;
+ case DRM_MODE_CONNECTOR_HDMIA:
+ VOP_CTRL_SET(vop, hdmi_en, 1);
+ break;
+ default:
+ DRM_ERROR("unsupport connector_type[%d]\n",
+ vop->connector_type);
+ return -EINVAL;
+ };
+ VOP_CTRL_SET(vop, out_mode, vop->connector_out_mode);
+
+ val = 0x8;
+ val |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0;
+ val |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? (1 << 1) : 0;
+ VOP_CTRL_SET(vop, pin_pol, val);
+
+ VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len);
+ val = hact_st << 16;
+ val |= hact_end;
+ VOP_CTRL_SET(vop, hact_st_end, val);
+ VOP_CTRL_SET(vop, hpost_st_end, val);
+
+ VOP_CTRL_SET(vop, vtotal_pw, (vtotal << 16) | vsync_len);
+ val = vact_st << 16;
+ val |= vact_end;
+ VOP_CTRL_SET(vop, vact_st_end, val);
+ VOP_CTRL_SET(vop, vpost_st_end, val);
+
+ ret = vop_crtc_mode_set_base(crtc, x, y, fb);
+ if (ret)
+ return ret;
+
+ /*
+ * reset dclk, take all mode config affect, so the clk would run in
+ * correct frame.
+ */
+ reset_control_assert(vop->dclk_rst);
+ usleep_range(10, 20);
+ reset_control_deassert(vop->dclk_rst);
+
+ clk_set_rate(vop->dclk, adjusted_mode->clock * 1000);
+ ret = clk_enable(vop->dclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to enable dclk - %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void vop_crtc_commit(struct drm_crtc *crtc)
+{
+}
+
+static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = {
+ .dpms = vop_crtc_dpms,
+ .prepare = vop_crtc_prepare,
+ .mode_fixup = vop_crtc_mode_fixup,
+ .mode_set = vop_crtc_mode_set,
+ .mode_set_base = vop_crtc_mode_set_base,
+ .commit = vop_crtc_commit,
+};
+
+static int vop_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t page_flip_flags)
+{
+ struct vop *vop = to_vop(crtc);
+ struct drm_framebuffer *old_fb = crtc->primary->fb;
+ int ret;
+
+ /* when the page flip is requested, crtc's dpms should be on */
+ if (vop->dpms > DRM_MODE_DPMS_ON) {
+ DRM_DEBUG("failed page flip request at dpms[%d].\n", vop->dpms);
+ return 0;
+ }
+
+ crtc->primary->fb = fb;
+
+ ret = vop_update_primary_plane(crtc, event);
+ if (ret)
+ crtc->primary->fb = old_fb;
+
+ return ret;
+}
+
+static void vop_win_state_complete(struct vop_win *vop_win,
+ struct vop_win_state *state)
+{
+ struct vop *vop = vop_win->vop;
+ struct drm_crtc *crtc = &vop->crtc;
+ struct drm_device *drm = crtc->dev;
+ unsigned long flags;
+
+ if (state->event) {
+ spin_lock_irqsave(&drm->event_lock, flags);
+ drm_send_vblank_event(drm, -1, state->event);
+ spin_unlock_irqrestore(&drm->event_lock, flags);
+ }
+
+ list_del(&state->head);
+ drm_vblank_put(crtc->dev, vop->pipe);
+}
+
+static void vop_crtc_destroy(struct drm_crtc *crtc)
+{
+ drm_crtc_cleanup(crtc);
+}
+
+static const struct drm_crtc_funcs vop_crtc_funcs = {
+ .set_config = drm_crtc_helper_set_config,
+ .page_flip = vop_crtc_page_flip,
+ .destroy = vop_crtc_destroy,
+};
+
+static bool vop_win_state_is_active(struct vop_win *vop_win,
+ struct vop_win_state *state)
+{
+ bool active = false;
+
+ if (state->fb) {
+ dma_addr_t yrgb_mst;
+
+ /* check yrgb_mst to tell if pending_fb is now front */
+ yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data);
+
+ active = (yrgb_mst == state->yrgb_mst);
+ } else {
+ bool enabled;
+
+ /* if enable bit is clear, plane is now disabled */
+ enabled = VOP_WIN_GET(vop_win->vop, vop_win->data, enable);
+
+ active = (enabled == 0);
+ }
+
+ return active;
+}
+
+static void vop_win_state_destroy(struct vop_win_state *state)
+{
+ struct drm_framebuffer *fb = state->fb;
+
+ if (fb)
+ drm_framebuffer_unreference(fb);
+
+ kfree(state);
+}
+
+static void vop_win_update_state(struct vop_win *vop_win)
+{
+ struct vop_win_state *state, *n, *new_active = NULL;
+
+ /* Check if any pending states are now active */
+ list_for_each_entry(state, &vop_win->pending, head)
+ if (vop_win_state_is_active(vop_win, state)) {
+ new_active = state;
+ break;
+ }
+
+ if (!new_active)
+ return;
+
+ /*
+ * Destroy any 'skipped' pending states - states that were queued
+ * before the newly active state.
+ */
+ list_for_each_entry_safe(state, n, &vop_win->pending, head) {
+ if (state == new_active)
+ break;
+ vop_win_state_complete(vop_win, state);
+ vop_win_state_destroy(state);
+ }
+
+ vop_win_state_complete(vop_win, new_active);
+
+ if (vop_win->active)
+ vop_win_state_destroy(vop_win->active);
+ vop_win->active = new_active;
+}
+
+static bool vop_win_has_pending_state(struct vop_win *vop_win)
+{
+ return !list_empty(&vop_win->pending);
+}
+
+static irqreturn_t vop_isr_thread(int irq, void *data)
+{
+ struct vop *vop = data;
+ const struct vop_data *vop_data = vop->data;
+ unsigned int i;
+
+ mutex_lock(&vop->vsync_mutex);
+
+ if (!vop->vsync_work_pending)
+ goto done;
+
+ vop->vsync_work_pending = false;
+
+ for (i = 0; i < vop_data->win_size; i++) {
+ struct vop_win *vop_win = &vop->win[i];
+
+ vop_win_update_state(vop_win);
+ if (vop_win_has_pending_state(vop_win))
+ vop->vsync_work_pending = true;
+ }
+
+done:
+ mutex_unlock(&vop->vsync_mutex);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vop_isr(int irq, void *data)
+{
+ struct vop *vop = data;
+ uint32_t intr0_reg, active_irqs;
+ unsigned long flags;
+
+ /*
+ * INTR_CTRL0 register has interrupt status, enable and clear bits, we
+ * must hold irq_lock to avoid a race with enable/disable_vblank().
+ */
+ spin_lock_irqsave(&vop->irq_lock, flags);
+ intr0_reg = vop_readl(vop, INTR_CTRL0);
+ active_irqs = intr0_reg & INTR_MASK;
+ /* Clear all active interrupt sources */
+ if (active_irqs)
+ vop_writel(vop, INTR_CTRL0,
+ intr0_reg | (active_irqs << INTR_CLR_SHIFT));
+ spin_unlock_irqrestore(&vop->irq_lock, flags);
+
+ /* This is expected for vop iommu irqs, since the irq is shared */
+ if (!active_irqs)
+ return IRQ_NONE;
+
+ /* Only Frame Start Interrupt is enabled; other irqs are spurious. */
+ if (!(active_irqs & FS_INTR)) {
+ DRM_ERROR("Unknown VOP IRQs: %#02x\n", active_irqs);
+ return IRQ_NONE;
+ }
+
+ drm_handle_vblank(vop->drm_dev, vop->pipe);
+
+ return (vop->vsync_work_pending) ? IRQ_WAKE_THREAD : IRQ_HANDLED;
+}
+
+static int vop_create_crtc(struct vop *vop)
+{
+ const struct vop_data *vop_data = vop->data;
+ struct device *dev = vop->dev;
+ struct drm_device *drm_dev = vop->drm_dev;
+ struct drm_plane *primary = NULL, *cursor = NULL, *plane;
+ struct drm_crtc *crtc = &vop->crtc;
+ struct device_node *port;
+ int ret;
+ int i;
+
+ /*
+ * Create drm_plane for primary and cursor planes first, since we need
+ * to pass them to drm_crtc_init_with_planes, which sets the
+ * "possible_crtcs" to the newly initialized crtc.
+ */
+ for (i = 0; i < vop_data->win_size; i++) {
+ struct vop_win *vop_win = &vop->win[i];
+ const struct vop_win_data *win_data = vop_win->data;
+
+ if (win_data->type != DRM_PLANE_TYPE_PRIMARY &&
+ win_data->type != DRM_PLANE_TYPE_CURSOR)
+ continue;
+
+ ret = drm_universal_plane_init(vop->drm_dev, &vop_win->base,
+ 0, &vop_plane_funcs,
+ win_data->phy->data_formats,
+ win_data->phy->nformats,
+ win_data->type);
+ if (ret) {
+ DRM_ERROR("failed to initialize plane\n");
+ goto err_cleanup_planes;
+ }
+
+ plane = &vop_win->base;
+ if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+ primary = plane;
+ else if (plane->type == DRM_PLANE_TYPE_CURSOR)
+ cursor = plane;
+ }
+
+ ret = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor,
+ &vop_crtc_funcs);
+ if (ret)
+ return ret;
+
+ drm_crtc_helper_add(crtc, &vop_crtc_helper_funcs);
+
+ /*
+ * Create drm_planes for overlay windows with possible_crtcs restricted
+ * to the newly created crtc.
+ */
+ for (i = 0; i < vop_data->win_size; i++) {
+ struct vop_win *vop_win = &vop->win[i];
+ const struct vop_win_data *win_data = vop_win->data;
+ unsigned long possible_crtcs = 1 << drm_crtc_index(crtc);
+
+ if (win_data->type != DRM_PLANE_TYPE_OVERLAY)
+ continue;
+
+ ret = drm_universal_plane_init(vop->drm_dev, &vop_win->base,
+ possible_crtcs,
+ &vop_plane_funcs,
+ win_data->phy->data_formats,
+ win_data->phy->nformats,
+ win_data->type);
+ if (ret) {
+ DRM_ERROR("failed to initialize overlay plane\n");
+ goto err_cleanup_crtc;
+ }
+ }
+
+ port = of_get_child_by_name(dev->of_node, "port");
+ if (!port) {
+ DRM_ERROR("no port node found in %s\n",
+ dev->of_node->full_name);
+ goto err_cleanup_crtc;
+ }
+
+ crtc->port = port;
+ vop->pipe = drm_crtc_index(crtc);
+ rockchip_register_crtc_funcs(drm_dev, &private_crtc_funcs, vop->pipe);
+
+ return 0;
+
+err_cleanup_crtc:
+ drm_crtc_cleanup(crtc);
+err_cleanup_planes:
+ list_for_each_entry(plane, &drm_dev->mode_config.plane_list, head)
+ drm_plane_cleanup(plane);
+ return ret;
+}
+
+static void vop_destroy_crtc(struct vop *vop)
+{
+ struct drm_crtc *crtc = &vop->crtc;
+
+ rockchip_unregister_crtc_funcs(vop->drm_dev, vop->pipe);
+ of_node_put(crtc->port);
+ drm_crtc_cleanup(crtc);
+}
+
+static int vop_initial(struct vop *vop)
+{
+ const struct vop_data *vop_data = vop->data;
+ const struct vop_reg_data *init_table = vop_data->init_table;
+ struct reset_control *ahb_rst;
+ int i, ret;
+
+ vop->hclk = devm_clk_get(vop->dev, "hclk_vop");
+ if (IS_ERR(vop->hclk)) {
+ dev_err(vop->dev, "failed to get hclk source\n");
+ return PTR_ERR(vop->hclk);
+ }
+ vop->aclk = devm_clk_get(vop->dev, "aclk_vop");
+ if (IS_ERR(vop->aclk)) {
+ dev_err(vop->dev, "failed to get aclk source\n");
+ return PTR_ERR(vop->aclk);
+ }
+ vop->dclk = devm_clk_get(vop->dev, "dclk_vop");
+ if (IS_ERR(vop->dclk)) {
+ dev_err(vop->dev, "failed to get dclk source\n");
+ return PTR_ERR(vop->dclk);
+ }
+
+ ret = clk_prepare(vop->hclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to prepare hclk\n");
+ return ret;
+ }
+
+ ret = clk_prepare(vop->dclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to prepare dclk\n");
+ goto err_unprepare_hclk;
+ }
+
+ ret = clk_prepare(vop->aclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to prepare aclk\n");
+ goto err_unprepare_dclk;
+ }
+
+ /*
+ * enable hclk, so that we can config vop register.
+ */
+ ret = clk_enable(vop->hclk);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to prepare aclk\n");
+ goto err_unprepare_aclk;
+ }
+ /*
+ * do hclk_reset, reset all vop registers.
+ */
+ ahb_rst = devm_reset_control_get(vop->dev, "ahb");
+ if (IS_ERR(ahb_rst)) {
+ dev_err(vop->dev, "failed to get ahb reset\n");
+ ret = PTR_ERR(ahb_rst);
+ goto err_disable_hclk;
+ }
+ reset_control_assert(ahb_rst);
+ usleep_range(10, 20);
+ reset_control_deassert(ahb_rst);
+
+ memcpy(vop->regsbak, vop->regs, vop->len);
+
+ for (i = 0; i < vop_data->table_size; i++)
+ vop_writel(vop, init_table[i].offset, init_table[i].value);
+
+ for (i = 0; i < vop_data->win_size; i++) {
+ const struct vop_win_data *win = &vop_data->win[i];
+
+ VOP_WIN_SET(vop, win, enable, 0);
+ }
+
+ vop_cfg_done(vop);
+
+ /*
+ * do dclk_reset, let all config take affect.
+ */
+ vop->dclk_rst = devm_reset_control_get(vop->dev, "dclk");
+ if (IS_ERR(vop->dclk_rst)) {
+ dev_err(vop->dev, "failed to get dclk reset\n");
+ ret = PTR_ERR(vop->dclk_rst);
+ goto err_unprepare_aclk;
+ }
+ reset_control_assert(vop->dclk_rst);
+ usleep_range(10, 20);
+ reset_control_deassert(vop->dclk_rst);
+
+ clk_disable(vop->hclk);
+
+ vop->dpms = DRM_MODE_DPMS_OFF;
+
+ return 0;
+
+err_disable_hclk:
+ clk_disable(vop->hclk);
+err_unprepare_aclk:
+ clk_unprepare(vop->aclk);
+err_unprepare_dclk:
+ clk_unprepare(vop->dclk);
+err_unprepare_hclk:
+ clk_unprepare(vop->hclk);
+ return ret;
+}
+
+/*
+ * Initialize the vop->win array elements.
+ */
+static void vop_win_init(struct vop *vop)
+{
+ const struct vop_data *vop_data = vop->data;
+ unsigned int i;
+
+ for (i = 0; i < vop_data->win_size; i++) {
+ struct vop_win *vop_win = &vop->win[i];
+ const struct vop_win_data *win_data = &vop_data->win[i];
+
+ vop_win->data = win_data;
+ vop_win->vop = vop;
+ INIT_LIST_HEAD(&vop_win->pending);
+ }
+}
+
+static int vop_bind(struct device *dev, struct device *master, void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct of_device_id *of_id;
+ const struct vop_data *vop_data;
+ struct drm_device *drm_dev = data;
+ struct vop *vop;
+ struct resource *res;
+ size_t alloc_size;
+ int ret;
+
+ of_id = of_match_device(vop_driver_dt_match, dev);
+ vop_data = of_id->data;
+ if (!vop_data)
+ return -ENODEV;
+
+ /* Allocate vop struct and its vop_win array */
+ alloc_size = sizeof(*vop) + sizeof(*vop->win) * vop_data->win_size;
+ vop = devm_kzalloc(dev, alloc_size, GFP_KERNEL);
+ if (!vop)
+ return -ENOMEM;
+
+ vop->dev = dev;
+ vop->data = vop_data;
+ vop->drm_dev = drm_dev;
+ dev_set_drvdata(dev, vop);
+
+ vop_win_init(vop);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ vop->len = resource_size(res);
+ vop->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(vop->regs))
+ return PTR_ERR(vop->regs);
+
+ vop->regsbak = devm_kzalloc(dev, vop->len, GFP_KERNEL);
+ if (!vop->regsbak)
+ return -ENOMEM;
+
+ ret = vop_initial(vop);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret);
+ return ret;
+ }
+
+ vop->irq = platform_get_irq(pdev, 0);
+ if (vop->irq < 0) {
+ dev_err(dev, "cannot find irq for vop\n");
+ return vop->irq;
+ }
+
+ spin_lock_init(&vop->reg_lock);
+ spin_lock_init(&vop->irq_lock);
+
+ mutex_init(&vop->vsync_mutex);
+
+ ret = devm_request_threaded_irq(dev, vop->irq, vop_isr, vop_isr_thread,
+ IRQF_SHARED, dev_name(dev), vop);
+ if (ret)
+ return ret;
+
+ /* IRQ is initially disabled; it gets enabled in power_on */
+ disable_irq(vop->irq);
+
+ ret = vop_create_crtc(vop);
+ if (ret)
+ return ret;
+
+ pm_runtime_enable(&pdev->dev);
+ return 0;
+}
+
+static void vop_unbind(struct device *dev, struct device *master, void *data)
+{
+ struct vop *vop = dev_get_drvdata(dev);
+
+ pm_runtime_disable(dev);
+ vop_destroy_crtc(vop);
+}
+
+static const struct component_ops vop_component_ops = {
+ .bind = vop_bind,
+ .unbind = vop_unbind,
+};
+
+static int vop_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+
+ if (!dev->of_node) {
+ dev_err(dev, "can't find vop devices\n");
+ return -ENODEV;
+ }
+
+ return component_add(dev, &vop_component_ops);
+}
+
+static int vop_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &vop_component_ops);
+
+ return 0;
+}
+
+struct platform_driver vop_platform_driver = {
+ .probe = vop_probe,
+ .remove = vop_remove,
+ .driver = {
+ .name = "rockchip-vop",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(vop_driver_dt_match),
+ },
+};
+
+module_platform_driver(vop_platform_driver);
+
+MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>");
+MODULE_DESCRIPTION("ROCKCHIP VOP Driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ROCKCHIP_DRM_VOP_H
+#define _ROCKCHIP_DRM_VOP_H
+
+/* register definition */
+#define REG_CFG_DONE 0x0000
+#define VERSION_INFO 0x0004
+#define SYS_CTRL 0x0008
+#define SYS_CTRL1 0x000c
+#define DSP_CTRL0 0x0010
+#define DSP_CTRL1 0x0014
+#define DSP_BG 0x0018
+#define MCU_CTRL 0x001c
+#define INTR_CTRL0 0x0020
+#define INTR_CTRL1 0x0024
+#define WIN0_CTRL0 0x0030
+#define WIN0_CTRL1 0x0034
+#define WIN0_COLOR_KEY 0x0038
+#define WIN0_VIR 0x003c
+#define WIN0_YRGB_MST 0x0040
+#define WIN0_CBR_MST 0x0044
+#define WIN0_ACT_INFO 0x0048
+#define WIN0_DSP_INFO 0x004c
+#define WIN0_DSP_ST 0x0050
+#define WIN0_SCL_FACTOR_YRGB 0x0054
+#define WIN0_SCL_FACTOR_CBR 0x0058
+#define WIN0_SCL_OFFSET 0x005c
+#define WIN0_SRC_ALPHA_CTRL 0x0060
+#define WIN0_DST_ALPHA_CTRL 0x0064
+#define WIN0_FADING_CTRL 0x0068
+/* win1 register */
+#define WIN1_CTRL0 0x0070
+#define WIN1_CTRL1 0x0074
+#define WIN1_COLOR_KEY 0x0078
+#define WIN1_VIR 0x007c
+#define WIN1_YRGB_MST 0x0080
+#define WIN1_CBR_MST 0x0084
+#define WIN1_ACT_INFO 0x0088
+#define WIN1_DSP_INFO 0x008c
+#define WIN1_DSP_ST 0x0090
+#define WIN1_SCL_FACTOR_YRGB 0x0094
+#define WIN1_SCL_FACTOR_CBR 0x0098
+#define WIN1_SCL_OFFSET 0x009c
+#define WIN1_SRC_ALPHA_CTRL 0x00a0
+#define WIN1_DST_ALPHA_CTRL 0x00a4
+#define WIN1_FADING_CTRL 0x00a8
+/* win2 register */
+#define WIN2_CTRL0 0x00b0
+#define WIN2_CTRL1 0x00b4
+#define WIN2_VIR0_1 0x00b8
+#define WIN2_VIR2_3 0x00bc
+#define WIN2_MST0 0x00c0
+#define WIN2_DSP_INFO0 0x00c4
+#define WIN2_DSP_ST0 0x00c8
+#define WIN2_COLOR_KEY 0x00cc
+#define WIN2_MST1 0x00d0
+#define WIN2_DSP_INFO1 0x00d4
+#define WIN2_DSP_ST1 0x00d8
+#define WIN2_SRC_ALPHA_CTRL 0x00dc
+#define WIN2_MST2 0x00e0
+#define WIN2_DSP_INFO2 0x00e4
+#define WIN2_DSP_ST2 0x00e8
+#define WIN2_DST_ALPHA_CTRL 0x00ec
+#define WIN2_MST3 0x00f0
+#define WIN2_DSP_INFO3 0x00f4
+#define WIN2_DSP_ST3 0x00f8
+#define WIN2_FADING_CTRL 0x00fc
+/* win3 register */
+#define WIN3_CTRL0 0x0100
+#define WIN3_CTRL1 0x0104
+#define WIN3_VIR0_1 0x0108
+#define WIN3_VIR2_3 0x010c
+#define WIN3_MST0 0x0110
+#define WIN3_DSP_INFO0 0x0114
+#define WIN3_DSP_ST0 0x0118
+#define WIN3_COLOR_KEY 0x011c
+#define WIN3_MST1 0x0120
+#define WIN3_DSP_INFO1 0x0124
+#define WIN3_DSP_ST1 0x0128
+#define WIN3_SRC_ALPHA_CTRL 0x012c
+#define WIN3_MST2 0x0130
+#define WIN3_DSP_INFO2 0x0134
+#define WIN3_DSP_ST2 0x0138
+#define WIN3_DST_ALPHA_CTRL 0x013c
+#define WIN3_MST3 0x0140
+#define WIN3_DSP_INFO3 0x0144
+#define WIN3_DSP_ST3 0x0148
+#define WIN3_FADING_CTRL 0x014c
+/* hwc register */
+#define HWC_CTRL0 0x0150
+#define HWC_CTRL1 0x0154
+#define HWC_MST 0x0158
+#define HWC_DSP_ST 0x015c
+#define HWC_SRC_ALPHA_CTRL 0x0160
+#define HWC_DST_ALPHA_CTRL 0x0164
+#define HWC_FADING_CTRL 0x0168
+/* post process register */
+#define POST_DSP_HACT_INFO 0x0170
+#define POST_DSP_VACT_INFO 0x0174
+#define POST_SCL_FACTOR_YRGB 0x0178
+#define POST_SCL_CTRL 0x0180
+#define POST_DSP_VACT_INFO_F1 0x0184
+#define DSP_HTOTAL_HS_END 0x0188
+#define DSP_HACT_ST_END 0x018c
+#define DSP_VTOTAL_VS_END 0x0190
+#define DSP_VACT_ST_END 0x0194
+#define DSP_VS_ST_END_F1 0x0198
+#define DSP_VACT_ST_END_F1 0x019c
+/* register definition end */
+
+/* interrupt define */
+#define DSP_HOLD_VALID_INTR (1 << 0)
+#define FS_INTR (1 << 1)
+#define LINE_FLAG_INTR (1 << 2)
+#define BUS_ERROR_INTR (1 << 3)
+
+#define INTR_MASK (DSP_HOLD_VALID_INTR | FS_INTR | \
+ LINE_FLAG_INTR | BUS_ERROR_INTR)
+
+#define DSP_HOLD_VALID_INTR_EN(x) ((x) << 4)
+#define FS_INTR_EN(x) ((x) << 5)
+#define LINE_FLAG_INTR_EN(x) ((x) << 6)
+#define BUS_ERROR_INTR_EN(x) ((x) << 7)
+#define DSP_HOLD_VALID_INTR_MASK (1 << 4)
+#define FS_INTR_MASK (1 << 5)
+#define LINE_FLAG_INTR_MASK (1 << 6)
+#define BUS_ERROR_INTR_MASK (1 << 7)
+
+#define INTR_CLR_SHIFT 8
+#define DSP_HOLD_VALID_INTR_CLR (1 << (INTR_CLR_SHIFT + 0))
+#define FS_INTR_CLR (1 << (INTR_CLR_SHIFT + 1))
+#define LINE_FLAG_INTR_CLR (1 << (INTR_CLR_SHIFT + 2))
+#define BUS_ERROR_INTR_CLR (1 << (INTR_CLR_SHIFT + 3))
+
+#define DSP_LINE_NUM(x) (((x) & 0x1fff) << 12)
+#define DSP_LINE_NUM_MASK (0x1fff << 12)
+
+/* src alpha ctrl define */
+#define SRC_FADING_VALUE(x) (((x) & 0xff) << 24)
+#define SRC_GLOBAL_ALPHA(x) (((x) & 0xff) << 16)
+#define SRC_FACTOR_M0(x) (((x) & 0x7) << 6)
+#define SRC_ALPHA_CAL_M0(x) (((x) & 0x1) << 5)
+#define SRC_BLEND_M0(x) (((x) & 0x3) << 3)
+#define SRC_ALPHA_M0(x) (((x) & 0x1) << 2)
+#define SRC_COLOR_M0(x) (((x) & 0x1) << 1)
+#define SRC_ALPHA_EN(x) (((x) & 0x1) << 0)
+/* dst alpha ctrl define */
+#define DST_FACTOR_M0(x) (((x) & 0x7) << 6)
+
+/*
+ * display output interface supported by rockchip lcdc
+ */
+#define ROCKCHIP_OUT_MODE_P888 0
+#define ROCKCHIP_OUT_MODE_P666 1
+#define ROCKCHIP_OUT_MODE_P565 2
+/* for use special outface */
+#define ROCKCHIP_OUT_MODE_AAAA 15
+
+enum alpha_mode {
+ ALPHA_STRAIGHT,
+ ALPHA_INVERSE,
+};
+
+enum global_blend_mode {
+ ALPHA_GLOBAL,
+ ALPHA_PER_PIX,
+ ALPHA_PER_PIX_GLOBAL,
+};
+
+enum alpha_cal_mode {
+ ALPHA_SATURATION,
+ ALPHA_NO_SATURATION,
+};
+
+enum color_mode {
+ ALPHA_SRC_PRE_MUL,
+ ALPHA_SRC_NO_PRE_MUL,
+};
+
+enum factor_mode {
+ ALPHA_ZERO,
+ ALPHA_ONE,
+ ALPHA_SRC,
+ ALPHA_SRC_INVERSE,
+ ALPHA_SRC_GLOBAL,
+};
+
+#endif /* _ROCKCHIP_DRM_VOP_H */
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff