[PATCH 1/9] drm: Add drm driver for Rockchip Socs

From: mark yao
Date: Thu Aug 07 2014 - 04:35:11 EST

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This patch is a DRM Driver for Rockchip Socs, driver provides an abstraction
for the graphics hardware, such as lcd controller and connector interface.

Signed-off-by: mark yao <yzq@xxxxxxxxxxxxxx>
---
changes since v1:

Adviced by Daniel Vetter:
- Switch to universal plane API's
---
drivers/gpu/drm/Kconfig | 2 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/rockchip/Kconfig | 40 ++
drivers/gpu/drm/rockchip/Makefile | 12 +
drivers/gpu/drm/rockchip/rockchip_drm_connector.c | 412 ++++++++++++
drivers/gpu/drm/rockchip/rockchip_drm_connector.h | 36 +
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 600 +++++++++++++++++
drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 128 ++++
drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 48 ++
drivers/gpu/drm/rockchip/rockchip_drm_fb.h | 28 +
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 63 ++
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h | 24 +
drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 163 +++++
drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 40 ++
drivers/gpu/drm/rockchip/rockchip_drm_lcdc.c | 722 +++++++++++++++++++++
drivers/gpu/drm/rockchip/rockchip_drm_lcdc.h | 131 ++++
include/uapi/drm/rockchip_drm.h | 110 ++++
17 files changed, 2560 insertions(+)
create mode 100644 drivers/gpu/drm/rockchip/Kconfig
create mode 100644 drivers/gpu/drm/rockchip/Makefile
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_connector.c
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_connector.h
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_drv.c
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_drv.h
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fb.c
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fb.h
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_gem.c
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_gem.h
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_lcdc.c
create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_lcdc.h
create mode 100644 include/uapi/drm/rockchip_drm.h

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index f512004..5951c2c 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -170,6 +170,8 @@ config DRM_SAVAGE

source "drivers/gpu/drm/exynos/Kconfig"

+source "drivers/gpu/drm/rockchip/Kconfig"
+
source "drivers/gpu/drm/vmwgfx/Kconfig"

source "drivers/gpu/drm/gma500/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index dd2ba42..40babd2 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/
obj-$(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/
diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
new file mode 100644
index 0000000..592e999
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -0,0 +1,40 @@
+config DRM_ROCKCHIP
+ tristate "DRM Support for Rockchip"
+ depends on DRM
+ select DRM_KMS_HELPER
+ select DRM_KMS_FB_HELPER
+ select DRM_KMS_CMA_HELPER
+ select DRM_GEM_CMA_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
+ select OF
+ 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 provides
+ 2D or 3D acceleration; acceleration is performed by other
+ IP found on the SoC.
+
+config DRM_ROCKCHIP_LCDC
+ bool "ROCKCHIP DRM LCDC"
+ depends on DRM_ROCKCHIP
+ select FB_MODE_HELPERS
+ help
+ Choose this option if you want to use Rockchip lcdc for DRM.
+ The driver provides an abstraction for Rockchip lcd controller,
+ lcd controller is the display interface from memory frame buffer
+ to display device.
+
+config DRM_ROCKCHIP_CONNECTOR
+ bool "ROCKCHIP DRM CONNECTOR"
+ depends on OF && DRM_ROCKCHIP && DRM_ROCKCHIP_LCDC
+ select FB_MODE_HELPERS
+ select VIDEOMODE_HELPERS
+ help
+ Choose this option if you want to use Rockchip Primary DISPLAY.
+ The driver provides an abstraction for Rockchip display devices,
+ such as lcd plane, lvds, edp , mipi, etc.
diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
new file mode 100644
index 0000000..45c9d50
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the drm device driver. This driver provides support for the
+# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
+
+ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/rockchip
+
+rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_gem.o \
+ rockchip_drm_fb.o rockchip_drm_fbdev.o
+
+obj-$(CONFIG_DRM_ROCKCHIP_CONNECTOR) += rockchip_drm_connector.o
+obj-$(CONFIG_DRM_ROCKCHIP_LCDC) += rockchip_drm_lcdc.o
+obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_connector.c b/drivers/gpu/drm/rockchip/rockchip_drm_connector.c
new file mode 100644
index 0000000..337b618
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_connector.c
@@ -0,0 +1,412 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_dpi.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 <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_panel.h>
+
+#include <linux/component.h>
+
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_connector.h"
+#include "rockchip_drm_lcdc.h"
+
+struct rockchip_conn_context {
+ struct device *dev;
+
+ struct drm_panel *panel;
+ struct rockchip_connector *conn;
+ struct drm_connector connector;
+ struct drm_encoder encoder;
+
+ struct drm_display_mode mode;
+
+ u32 flags;
+ int type;
+
+ int dpms_mode;
+};
+
+#define connector_to_ctx(c) \
+ container_of(c, struct rockchip_conn_context, connector)
+
+#define encoder_to_ctx(c) \
+ container_of(c, struct rockchip_conn_context, encoder)
+
+static inline int rockchip_convert_conn_type(int type)
+{
+ switch (type) {
+ case ROCKCHIP_DISPLAY_TYPE_RGB:
+ case ROCKCHIP_DISPLAY_TYPE_LVDS:
+ return DRM_MODE_CONNECTOR_LVDS;
+ case ROCKCHIP_DISPLAY_TYPE_EDP:
+ return DRM_MODE_CONNECTOR_eDP;
+ }
+
+ return DRM_MODE_CONNECTOR_Unknown;
+}
+
+static inline int rockchip_convert_encoder_type(int type)
+{
+ switch (type) {
+ case ROCKCHIP_DISPLAY_TYPE_RGB:
+ case ROCKCHIP_DISPLAY_TYPE_LVDS:
+ case ROCKCHIP_DISPLAY_TYPE_EDP:
+ return DRM_MODE_ENCODER_LVDS;
+ }
+
+ return DRM_MODE_ENCODER_NONE;
+}
+
+static enum drm_connector_status
+rockchip_conn_detect(struct drm_connector *connector, bool force)
+{
+ return true;
+}
+
+static void rockchip_connector_destroy(struct drm_connector *connector)
+{
+ drm_sysfs_connector_remove(connector);
+ drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs rockchip_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = rockchip_conn_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = rockchip_connector_destroy,
+};
+
+static int rockchip_conn_get_modes(struct drm_connector *connector)
+{
+ struct rockchip_conn_context *ctx = connector_to_ctx(connector);
+ struct drm_panel *panel = ctx->panel;
+
+ return panel->funcs->get_modes(panel);
+}
+
+static struct drm_encoder *
+ rockchip_conn_best_encoder(struct drm_connector *connector)
+{
+ struct rockchip_conn_context *ctx = connector_to_ctx(connector);
+
+ return &ctx->encoder;
+}
+
+static struct drm_connector_helper_funcs rockchip_connector_helper_funcs = {
+ .get_modes = rockchip_conn_get_modes,
+ .best_encoder = rockchip_conn_best_encoder,
+};
+
+static void rockchip_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct rockchip_conn_context *ctx = encoder_to_ctx(encoder);
+ struct rockchip_connector *conn = ctx->conn;
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ if (ctx->dpms_mode != DRM_MODE_DPMS_ON) {
+ conn->enable(conn);
+ ctx->panel->funcs->enable(ctx->panel);
+ }
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ if (ctx->dpms_mode == DRM_MODE_DPMS_ON) {
+ ctx->panel->funcs->disable(ctx->panel);
+ conn->disable(conn);
+ }
+ break;
+ default:
+ break;
+ }
+
+ ctx->dpms_mode = mode;
+}
+
+static bool
+rockchip_drm_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct rockchip_panel_special *priv_mode =
+ (void *)adjusted_mode->private;
+ struct rockchip_conn_context *ctx = encoder_to_ctx(encoder);
+
+ priv_mode->out_type = ctx->conn->type;
+
+ return true;
+}
+
+static void rockchip_drm_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted)
+{
+ /* just set dummy now */
+}
+
+static void rockchip_drm_encoder_prepare(struct drm_encoder *encoder)
+{
+ /* drm framework doesn't check NULL. */
+}
+
+static void rockchip_drm_encoder_commit(struct drm_encoder *encoder)
+{
+ rockchip_drm_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static void rockchip_drm_encoder_disable(struct drm_encoder *encoder)
+{
+ struct drm_plane *plane;
+ struct drm_device *dev = encoder->dev;
+
+ rockchip_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+
+ /* all planes connected to this encoder should be also disabled. */
+ list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
+ if (plane->crtc && (plane->crtc == encoder->crtc))
+ plane->funcs->disable_plane(plane);
+ }
+}
+
+
+static struct drm_encoder_helper_funcs rockchip_encoder_helper_funcs = {
+ .dpms = rockchip_drm_encoder_dpms,
+ .mode_fixup = rockchip_drm_encoder_mode_fixup,
+ .mode_set = rockchip_drm_encoder_mode_set,
+ .prepare = rockchip_drm_encoder_prepare,
+ .commit = rockchip_drm_encoder_commit,
+ .disable = rockchip_drm_encoder_disable,
+};
+static void rockchip_drm_encoder_destroy(struct drm_encoder *encoder)
+{
+ drm_encoder_cleanup(encoder);
+}
+
+static struct drm_encoder_funcs rockchip_encoder_funcs = {
+ .destroy = rockchip_drm_encoder_destroy,
+};
+
+static unsigned int rockchip_drm_encoder_clones(struct drm_encoder *encoder)
+{
+ struct rockchip_conn_context *ctx = encoder_to_ctx(encoder);
+ struct drm_encoder *clone;
+ struct drm_device *dev = encoder->dev;
+ unsigned int clone_mask = 0;
+ int cnt = 0;
+
+ list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
+ switch (ctx->type) {
+ case ROCKCHIP_DISPLAY_TYPE_RGB:
+ case ROCKCHIP_DISPLAY_TYPE_LVDS:
+ case ROCKCHIP_DISPLAY_TYPE_EDP:
+ case ROCKCHIP_DISPLAY_TYPE_HDMI:
+ clone_mask |= (1 << (cnt++));
+ break;
+ default:
+ continue;
+ }
+ }
+
+ return clone_mask;
+}
+
+static int rockchip_conn_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct rockchip_conn_context *ctx;
+ unsigned long possible_crtcs = 0;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ struct device_node *panel_node;
+ struct drm_device *drm_dev = data;
+ int ret;
+
+ ctx = rockchip_drm_component_data_get(dev,
+ ROCKCHIP_DEVICE_TYPE_CONNECTOR);
+ if (!ctx) {
+ DRM_ERROR("can't find dp content form component\n");
+ return -EINVAL;
+ }
+
+ ret = rockchip_drm_pipe_get(dev);
+ if (ret < 0) {
+ DRM_ERROR("failed to bind display port\n");
+ return ret;
+ }
+
+ possible_crtcs |= 1 << ret;
+
+ encoder = &ctx->encoder;
+ encoder->possible_crtcs = possible_crtcs;
+
+ DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
+
+ ret = drm_encoder_init(drm_dev, encoder, &rockchip_encoder_funcs,
+ rockchip_convert_encoder_type(ctx->type));
+ if (ret) {
+ DRM_ERROR("failed to initialize encoder with drm\n");
+ return ret;
+ }
+
+ drm_encoder_helper_add(encoder, &rockchip_encoder_helper_funcs);
+
+ connector = &ctx->connector;
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
+ connector->dpms = DRM_MODE_DPMS_OFF;
+
+ ret = drm_connector_init(drm_dev, connector,
+ &rockchip_connector_funcs,
+ rockchip_convert_conn_type(ctx->type));
+ if (ret) {
+ DRM_ERROR("failed to initialize connector with drm\n");
+ goto err_free_encoder;
+ }
+
+ drm_connector_helper_add(connector,
+ &rockchip_connector_helper_funcs);
+
+ ret = drm_sysfs_connector_add(connector);
+ if (ret) {
+ DRM_ERROR("failed to add drm_sysfs\n");
+ goto err_free_connector;
+ }
+
+ ret = drm_mode_connector_attach_encoder(connector, encoder);
+ if (ret) {
+ DRM_ERROR("failed to attach connector and encoder\n");
+ goto err_free_connector_sysfs;
+ }
+
+ panel_node = of_parse_phandle(dev->of_node, "rockchip,panel", 0);
+ if (!panel_node) {
+ DRM_ERROR("failed to find diaplay panel\n");
+ goto err_free_connector_sysfs;
+ }
+ ctx->panel = of_drm_find_panel(panel_node);
+ if (!ctx->panel) {
+ DRM_ERROR("failed to find diaplay panel\n");
+ ret = -ENODEV;
+ goto err_free_connector_sysfs;
+ }
+
+ of_node_put(panel_node);
+
+ ret = drm_panel_attach(ctx->panel, connector);
+ if (ret) {
+ DRM_ERROR("failed to attach connector and encoder\n");
+ goto err_free_connector_sysfs;
+ }
+
+ return 0;
+
+err_free_connector_sysfs:
+ drm_sysfs_connector_remove(connector);
+err_free_connector:
+ drm_connector_cleanup(connector);
+err_free_encoder:
+ drm_encoder_cleanup(encoder);
+ return ret;
+}
+
+static void rockchip_conn_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct rockchip_conn_context *ctx;
+ struct drm_encoder *encoder;
+
+ ctx = rockchip_drm_component_data_get(dev,
+ ROCKCHIP_DEVICE_TYPE_CONNECTOR);
+ encoder = &ctx->encoder;
+
+ drm_panel_detach(ctx->panel);
+
+ rockchip_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+ encoder->funcs->destroy(encoder);
+ drm_sysfs_connector_remove(&ctx->connector);
+ drm_connector_cleanup(&ctx->connector);
+ drm_encoder_cleanup(encoder);
+
+ rockchip_drm_component_del(dev, ROCKCHIP_DEVICE_TYPE_CONNECTOR);
+}
+
+static const struct component_ops rockchip_conn_component_ops = {
+ .bind = rockchip_conn_bind,
+ .unbind = rockchip_conn_unbind,
+};
+
+void *rockchip_connector_register(struct rockchip_connector *conn)
+{
+ struct rockchip_conn_context *ctx;
+ struct device *dev = conn->dev;
+ int ret;
+
+ if (!dev) {
+ DRM_ERROR("please provide a device at dp register\n");
+ return NULL;
+ }
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return NULL;
+
+ ret = rockchip_drm_component_add(dev, ROCKCHIP_DEVICE_TYPE_CONNECTOR,
+ conn->type, ctx);
+ if (ret < 0) {
+ DRM_ERROR("register connector component fail ret =%d\n", ret);
+ return NULL;
+ }
+
+ ctx->conn = conn;
+ ctx->dev = dev;
+ ctx->type = conn->type;
+ ctx->dpms_mode = DRM_MODE_DPMS_OFF;
+
+ ret = component_add(dev, &rockchip_conn_component_ops);
+ if (ret)
+ goto err_del_component;
+
+ DRM_DEBUG_KMS("succes register connector type=%d\n", conn->type);
+
+ return ctx;
+
+err_del_component:
+ rockchip_drm_component_del(dev, ROCKCHIP_DEVICE_TYPE_CONNECTOR);
+ return NULL;
+}
+
+void rockchip_connector_unregister(void *data)
+{
+ struct rockchip_conn_context *ctx = data;
+
+ if (!ctx)
+ return;
+ rockchip_drm_component_del(ctx->dev, ROCKCHIP_DEVICE_TYPE_CONNECTOR);
+ component_del(ctx->dev, &rockchip_conn_component_ops);
+}
+
+void rockchip_drm_encoder_setup(struct drm_device *dev)
+{
+ struct drm_encoder *encoder;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ encoder->possible_clones =
+ rockchip_drm_encoder_clones(encoder);
+}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_connector.h b/drivers/gpu/drm/rockchip/rockchip_drm_connector.h
new file mode 100644
index 0000000..191f9fc
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_connector.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * 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_CONNECTOR_H_
+#define _ROCKCHIP_DRM_CONNECTOR_H_
+
+#include <drm/drm_crtc.h>
+
+#include "rockchip_drm_drv.h"
+
+struct rockchip_connector {
+ struct device *dev;
+ int type;
+ void *priv;
+ u32 flags;
+
+ void (*enable)(struct rockchip_connector *conn);
+ void (*disable)(struct rockchip_connector *conn);
+ int (*setmode)(struct rockchip_connector *conn,
+ struct drm_display_mode *mode);
+};
+
+void *rockchip_connector_register(struct rockchip_connector *conn);
+void rockchip_connector_unregister(void *data);
+#endif
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
new file mode 100644
index 0000000..4871867
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -0,0 +1,600 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * 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 <linux/pm_runtime.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+
+#include <linux/anon_inodes.h>
+#include <linux/component.h>
+
+#include <drm/rockchip_drm.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-drm"
+#define DRIVER_DESC "RockChip Soc DRM"
+#define DRIVER_DATE "20140725"
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+
+#define VBLANK_OFF_DELAY 50000
+
+static struct platform_device *rockchip_drm_pdev;
+
+static DEFINE_MUTEX(drm_component_lock);
+static LIST_HEAD(drm_component_list);
+
+struct component_dev {
+ struct list_head list;
+ struct device *crtc_dev;
+ struct device *conn_dev;
+ unsigned int out_type;
+ int pipe;
+ void *crtc_data;
+ void *conn_data;
+};
+
+static int rockchip_drm_load(struct drm_device *dev, unsigned long flags)
+{
+ struct rockchip_drm_private *private;
+ int ret;
+ int nr;
+
+ private = kzalloc(sizeof(*private), GFP_KERNEL);
+ if (!private)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev->dev, dev);
+ dev->dev_private = (void *)private;
+
+ drm_mode_config_init(dev);
+
+ rockchip_drm_mode_config_init(dev);
+
+
+ /* Try to bind all sub drivers. */
+ ret = component_bind_all(dev->dev, dev);
+ if (ret)
+ goto err_cleanup_vblank;
+
+ for (nr = 0; nr < MAX_PLANE; nr++) {
+ struct drm_plane *plane;
+ unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
+
+ plane = rockchip_plane_init(dev, possible_crtcs, false);
+ if (!plane)
+ goto err_mode_config_cleanup;
+ }
+
+ /* init kms poll for handling hpd */
+ drm_kms_helper_poll_init(dev);
+
+ ret = drm_vblank_init(dev, MAX_CRTC);
+ if (ret)
+ goto err_mode_config_cleanup;
+
+ /* setup possible_clones. */
+ rockchip_drm_encoder_setup(dev);
+
+ drm_vblank_offdelay = VBLANK_OFF_DELAY;
+
+ platform_set_drvdata(dev->platformdev, dev);
+ rockchip_drm_fbdev_init(dev);
+
+ /* force connectors detection */
+ drm_helper_hpd_irq_event(dev);
+
+ return 0;
+
+err_cleanup_vblank:
+ drm_vblank_cleanup(dev);
+err_mode_config_cleanup:
+ drm_mode_config_cleanup(dev);
+ kfree(private);
+
+ return ret;
+}
+
+static int rockchip_drm_unload(struct drm_device *dev)
+{
+ rockchip_drm_fbdev_fini(dev);
+ drm_vblank_cleanup(dev);
+ drm_kms_helper_poll_fini(dev);
+ drm_mode_config_cleanup(dev);
+
+ kfree(dev->dev_private);
+
+ component_unbind_all(dev->dev, dev);
+ dev->dev_private = NULL;
+
+ return 0;
+}
+
+static int rockchip_drm_suspend(struct drm_device *dev, pm_message_t state)
+{
+ struct drm_connector *connector;
+
+ drm_modeset_lock_all(dev);
+ list_for_each_entry(connector, &dev->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(dev);
+
+ return 0;
+}
+
+static int rockchip_drm_resume(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+
+ drm_modeset_lock_all(dev);
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, connector->dpms);
+ }
+ drm_modeset_unlock_all(dev);
+
+ drm_helper_resume_force_mode(dev);
+
+ return 0;
+}
+
+static int rockchip_drm_open(struct drm_device *dev, struct drm_file *file)
+{
+ return 0;
+}
+
+static void rockchip_drm_postclose(struct drm_device *dev,
+ struct drm_file *file)
+{
+ struct drm_pending_event *e, *et;
+ unsigned long flags;
+
+ if (!file->driver_priv)
+ return;
+
+ /* Release all events not unhandled by page flip handler. */
+ rockchip_drm_crtc_cancel_pending_flip(dev);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ /* Release all events handled by page flip handler but not freed. */
+ list_for_each_entry_safe(e, et, &file->event_list, link) {
+ list_del(&e->link);
+ e->destroy(e);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ kfree(file->driver_priv);
+ file->driver_priv = NULL;
+}
+
+static const struct drm_ioctl_desc rockchip_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_CREATE, rockchip_drm_gem_create_ioctl,
+ DRM_UNLOCKED | DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_MAP_OFFSET,
+ rockchip_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
+ DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_MMAP, rockchip_drm_gem_mmap_ioctl,
+ DRM_UNLOCKED | DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_GET, rockchip_drm_gem_get_ioctl,
+ DRM_UNLOCKED),
+};
+
+static const struct file_operations rockchip_drm_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .mmap = drm_gem_cma_mmap,
+ .poll = drm_poll,
+ .read = drm_read,
+ .unlocked_ioctl = drm_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .release = drm_release,
+};
+
+static struct drm_driver rockchip_drm_driver = {
+ .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
+ .load = rockchip_drm_load,
+ .unload = rockchip_drm_unload,
+ .suspend = rockchip_drm_suspend,
+ .resume = rockchip_drm_resume,
+ .open = rockchip_drm_open,
+ .postclose = rockchip_drm_postclose,
+ .get_vblank_counter = drm_vblank_count,
+ .enable_vblank = rockchip_drm_crtc_enable_vblank,
+ .disable_vblank = rockchip_drm_crtc_disable_vblank,
+ .gem_free_object = drm_gem_cma_free_object,
+ .gem_vm_ops = &drm_gem_cma_vm_ops,
+ .dumb_create = drm_gem_cma_dumb_create,
+ .dumb_map_offset = drm_gem_cma_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 = drm_gem_cma_prime_get_sg_table,
+ .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
+ .gem_prime_vmap = drm_gem_cma_prime_vmap,
+ .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
+ .gem_prime_mmap = drm_gem_cma_prime_mmap,
+ .ioctls = rockchip_ioctls,
+ .num_ioctls = ARRAY_SIZE(rockchip_ioctls),
+ .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 = dev_get_drvdata(dev);
+ pm_message_t message;
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ message.event = PM_EVENT_SUSPEND;
+
+ return rockchip_drm_suspend(drm_dev, message);
+}
+
+static int rockchip_drm_sys_resume(struct device *dev)
+{
+ struct drm_device *drm_dev = dev_get_drvdata(dev);
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ return rockchip_drm_resume(drm_dev);
+}
+#endif
+
+static const struct dev_pm_ops rockchip_drm_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(rockchip_drm_sys_suspend,
+ rockchip_drm_sys_resume)
+};
+
+int rockchip_drm_pipe_get(struct device *dev)
+{
+ struct component_dev *cdev, *next;
+ int pipe = -1;
+
+ mutex_lock(&drm_component_lock);
+
+ list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
+ if ((cdev->crtc_dev == dev) || (cdev->conn_dev == dev)) {
+ pipe = cdev->pipe;
+ break;
+ }
+ }
+
+ mutex_unlock(&drm_component_lock);
+
+ return pipe;
+}
+
+int rockchip_drm_out_type_get(struct device *dev)
+{
+ struct component_dev *cdev, *next;
+ int type = -1;
+
+ mutex_lock(&drm_component_lock);
+
+ list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
+ if ((cdev->crtc_dev == dev) || (cdev->conn_dev == dev)) {
+ type = cdev->out_type;
+ break;
+ }
+ }
+
+ mutex_unlock(&drm_component_lock);
+
+ return type;
+}
+
+void *rockchip_drm_component_data_get(struct device *dev,
+ enum rockchip_drm_device_type dev_type)
+{
+ struct component_dev *cdev, *next;
+ void *data = NULL;
+
+ mutex_lock(&drm_component_lock);
+
+ list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
+ if ((cdev->crtc_dev == dev) || (cdev->conn_dev == dev)) {
+ if (dev_type == ROCKCHIP_DEVICE_TYPE_CRTC)
+ data = cdev->crtc_data;
+ else if (dev_type == ROCKCHIP_DEVICE_TYPE_CONNECTOR)
+ data = cdev->conn_data;
+ break;
+ }
+ }
+
+ mutex_unlock(&drm_component_lock);
+
+ return data;
+}
+
+int rockchip_drm_component_add(struct device *dev,
+ enum rockchip_drm_device_type dev_type,
+ int out_type, void *data)
+{
+ struct component_dev *cdev;
+ int pipe = -1;
+
+ if (dev_type != ROCKCHIP_DEVICE_TYPE_CRTC &&
+ dev_type != ROCKCHIP_DEVICE_TYPE_CONNECTOR) {
+ DRM_ERROR("invalid device type.\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&drm_component_lock);
+
+ /*
+ * Make sure to check if there is a component which has two device
+ * objects, for connector and for encoder/connector.
+ * It should make sure that crtc and encoder/connector drivers are
+ * ready before rockchip drm core binds them.
+ */
+ list_for_each_entry(cdev, &drm_component_list, list) {
+ pipe++;
+ /*
+ * out_type from crtc and display port, crtc set possible
+ * out_type maskbit at out_type, and display posr set out_type
+ * directly. and if crtc and display port all register, set
+ * out_type not maskbit;
+ */
+ if (cdev->out_type & out_type) {
+ if (cdev->crtc_dev && cdev->conn_dev) {
+ DRM_ERROR("already register, not allow");
+ return -EINVAL;
+ }
+
+ if (dev_type == ROCKCHIP_DEVICE_TYPE_CRTC) {
+ cdev->pipe = pipe;
+ cdev->crtc_dev = dev;
+ cdev->crtc_data = data;
+ } else if (dev_type == ROCKCHIP_DEVICE_TYPE_CONNECTOR) {
+ cdev->conn_dev = dev;
+ cdev->conn_data = data;
+ cdev->out_type = out_type;
+ }
+
+ mutex_unlock(&drm_component_lock);
+ return 0;
+ }
+ }
+
+ mutex_unlock(&drm_component_lock);
+
+ cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
+ if (!cdev)
+ return -ENOMEM;
+
+ if (dev_type == ROCKCHIP_DEVICE_TYPE_CRTC) {
+ cdev->crtc_dev = dev;
+ cdev->crtc_data = data;
+ } else if (dev_type == ROCKCHIP_DEVICE_TYPE_CONNECTOR) {
+ cdev->conn_dev = dev;
+ cdev->conn_data = data;
+ }
+
+ cdev->out_type = out_type;
+
+ mutex_lock(&drm_component_lock);
+ list_add_tail(&cdev->list, &drm_component_list);
+ mutex_unlock(&drm_component_lock);
+
+ return 0;
+}
+
+void rockchip_drm_component_del(struct device *dev,
+ enum rockchip_drm_device_type dev_type)
+{
+ struct component_dev *cdev, *next;
+
+ mutex_lock(&drm_component_lock);
+
+ list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
+ if (dev_type == ROCKCHIP_DEVICE_TYPE_CRTC) {
+ if (cdev->crtc_dev == dev)
+ cdev->crtc_dev = NULL;
+ }
+
+ if (dev_type == ROCKCHIP_DEVICE_TYPE_CONNECTOR) {
+ if (cdev->conn_dev == dev)
+ cdev->conn_dev = NULL;
+ }
+
+ /*
+ * Release cdev object only in case that both of crtc and
+ * encoder/connector device objects are NULL.
+ */
+ if (!cdev->crtc_dev && !cdev->conn_dev) {
+ list_del(&cdev->list);
+ kfree(cdev);
+ }
+
+ break;
+ }
+
+ mutex_unlock(&drm_component_lock);
+}
+
+static int compare_of(struct device *dev, void *data)
+{
+ return dev == (struct device *)data;
+}
+
+static int rockchip_drm_add_components(struct device *dev, struct master *m)
+{
+ struct component_dev *cdev;
+ unsigned int attach_cnt = 0;
+
+ mutex_lock(&drm_component_lock);
+
+ list_for_each_entry(cdev, &drm_component_list, list) {
+ int ret;
+
+ /*
+ * Add components to master only in case that crtc and
+ * encoder/connector device objects exist.
+ */
+ if (!cdev->crtc_dev || !cdev->conn_dev)
+ continue;
+
+ attach_cnt++;
+
+ mutex_unlock(&drm_component_lock);
+
+ /*
+ * Do not chage below call order.
+ * crtc device first should be added to master because
+ * connector/encoder need pipe number of crtc when they
+ * are created.
+ */
+ ret = component_master_add_child(m, compare_of, cdev->crtc_dev);
+ ret |= component_master_add_child(m, compare_of,
+ cdev->conn_dev);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&drm_component_lock);
+ }
+
+ mutex_unlock(&drm_component_lock);
+
+ return attach_cnt ? 0 : -ENODEV;
+}
+
+static int rockchip_drm_bind(struct device *dev)
+{
+ return drm_platform_init(&rockchip_drm_driver, to_platform_device(dev));
+}
+
+static void rockchip_drm_unbind(struct device *dev)
+{
+ drm_put_dev(dev_get_drvdata(dev));
+}
+
+static const struct component_master_ops rockchip_drm_ops = {
+ .add_components = rockchip_drm_add_components,
+ .bind = rockchip_drm_bind,
+ .unbind = rockchip_drm_unbind,
+};
+
+static int rockchip_drm_platform_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+ rockchip_drm_driver.num_ioctls = ARRAY_SIZE(rockchip_ioctls);
+
+ ret = component_master_add(&pdev->dev, &rockchip_drm_ops);
+ if (ret < 0)
+ DRM_DEBUG_KMS("re-tried by last sub driver probed later.\n");
+
+ return 0;
+}
+
+static int rockchip_drm_platform_remove(struct platform_device *pdev)
+{
+ component_master_del(&pdev->dev, &rockchip_drm_ops);
+
+ return 0;
+}
+
+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",
+ .pm = &rockchip_drm_pm_ops,
+ },
+};
+
+static int rockchip_drm_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&rockchip_panel_platform_driver);
+ if (ret < 0)
+ return -ENOMEM;
+
+#ifdef CONFIG_DRM_ROCKCHIP_LCDC
+ ret = platform_driver_register(&rockchip_lcdc_platform_driver);
+ if (ret < 0)
+ goto out_lcdc;
+#endif
+
+ rockchip_drm_pdev = platform_device_register_simple("rockchip-drm", -1,
+ NULL, 0);
+ if (IS_ERR(rockchip_drm_pdev)) {
+ ret = PTR_ERR(rockchip_drm_pdev);
+ goto out_drm_pdev;
+ }
+
+ ret = platform_driver_register(&rockchip_drm_platform_driver);
+ if (ret)
+ goto out_drm_driver;
+
+ return 0;
+
+out_drm_driver:
+ platform_device_unregister(rockchip_drm_pdev);
+out_drm_pdev:
+#ifdef CONFIG_DRM_ROCKCHIP_LCDC
+ platform_driver_unregister(&rockchip_lcdc_platform_driver);
+out_lcdc:
+#endif
+ platform_driver_unregister(&rockchip_panel_platform_driver);
+ return ret;
+}
+
+static void rockchip_drm_exit(void)
+{
+ platform_device_unregister(rockchip_drm_pdev);
+ platform_driver_unregister(&rockchip_drm_platform_driver);
+#ifdef CONFIG_DRM_ROCKCHIP_LCDC
+ platform_driver_unregister(&rockchip_lcdc_platform_driver);
+#endif
+ platform_driver_unregister(&rockchip_panel_platform_driver);
+}
+
+module_init(rockchip_drm_init);
+module_exit(rockchip_drm_exit);
+
+MODULE_AUTHOR("mark yao <mark.yao@xxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("ROCKCHIP DRM Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
new file mode 100644
index 0000000..c0c1d89
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * 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 <linux/module.h>
+
+#define MAX_CRTC 3
+#define MAX_PLANE 5
+#define MAX_FB_BUFFER 4
+#define DEFAULT_ZPOS -1
+
+struct drm_device;
+struct drm_connector;
+
+/*
+ * display output interface supported by rockchip lcdc
+ */
+#define ROCKCHIP_OUTFACE_P888 0
+#define ROCKCHIP_OUTFACE_P666 1
+#define ROCKCHIP_OUTFACE_P565 2
+/* for use special outface */
+#define ROCKCHIP_OUTFACE_AAAA 15
+
+#define ROCKCHIP_COLOR_SWAP_RG 0x1
+#define ROCKCHIP_COLOR_SWAP_RB 0x2
+#define ROCKCHIP_COLOR_SWAP_GB 0x4
+/*
+ * Special panel info for rockchip
+ *
+ * @out_type: lcd controller need to know the sceen type.
+ * @out_face: the output pin interface.
+ * @color_swap: if want to swap color at output, use this.
+ * @pwr18: choice the power supply 1.8 or 3.3 mode for lcdc
+ * @dither: use dither func at lcd output
+ * @flags: the display flags, now just for pin sync level.
+ */
+struct rockchip_panel_special {
+ int out_type;
+ int out_face;
+ u32 color_swap;
+ bool pwr18;
+ bool dither;
+ u32 flags;
+};
+
+/* This enumerates device type. */
+enum rockchip_drm_device_type {
+ ROCKCHIP_DEVICE_TYPE_NONE,
+ ROCKCHIP_DEVICE_TYPE_CRTC,
+ ROCKCHIP_DEVICE_TYPE_CONNECTOR,
+};
+
+/* this enumerates display type. */
+enum rockchip_drm_output_type {
+ ROCKCHIP_DISPLAY_TYPE_NONE = 0,
+ /* RGB Interface. */
+ ROCKCHIP_DISPLAY_TYPE_RGB = (1 << 0),
+ /* LVDS Interface. */
+ ROCKCHIP_DISPLAY_TYPE_LVDS = (1 << 1),
+ /* DUAL LVDS Interface. */
+ ROCKCHIP_DISPLAY_TYPE_DUAL_LVDS = (1 << 2),
+ /* EDP Interface. */
+ ROCKCHIP_DISPLAY_TYPE_EDP = (1 << 3),
+ /* MIPI Interface. */
+ ROCKCHIP_DISPLAY_TYPE_MIPI = (1 << 4),
+ /* HDMI Interface. */
+ ROCKCHIP_DISPLAY_TYPE_HDMI = (1 << 5),
+};
+
+/*
+ * Rockchip drm private structure.
+ *
+ * @pipe: the pipe number for this crtc/manager.
+ */
+struct rockchip_drm_private {
+ struct drm_fbdev_cma *fbdev_cma;
+ /*
+ * created crtc object would be contained at this array and
+ * this array is used to be aware of which crtc did it request vblank.
+ */
+ struct drm_crtc *crtc[MAX_CRTC];
+ struct drm_property *plane_zpos_property;
+ struct drm_property *crtc_mode_property;
+
+ unsigned int pipe;
+};
+
+
+void rockchip_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe);
+void rockchip_drm_crtc_cancel_pending_flip(struct drm_device *dev);
+int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe);
+void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe);
+
+struct drm_plane *rockchip_plane_init(struct drm_device *dev,
+ unsigned long possible_crtcs, bool priv);
+
+void rockchip_drm_encoder_setup(struct drm_device *dev);
+
+void *rockchip_drm_component_data_get(struct device *dev,
+ enum rockchip_drm_device_type dev_type);
+int rockchip_drm_pipe_get(struct device *dev);
+
+int rockchip_drm_component_add(struct device *dev,
+ enum rockchip_drm_device_type dev_type,
+ int out_type, void *data);
+void rockchip_drm_component_del(struct device *dev,
+ enum rockchip_drm_device_type dev_type);
+
+extern struct platform_driver rockchip_panel_platform_driver;
+#ifdef CONFIG_DRM_ROCKCHIP_LCDC
+extern struct platform_driver rockchip_lcdc_platform_driver;
+#endif
+#endif /* _ROCKCHIP_DRM_DRV_H_ */
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
new file mode 100644
index 0000000..a04024b
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_fb.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 <drm/drmP.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_fb_helper.h>
+
+#include <uapi/drm/rockchip_drm.h>
+
+static struct drm_framebuffer *
+rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
+ struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ return drm_fb_cma_create(dev, file_priv, mode_cmd);
+}
+
+static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = {
+ .fb_create = rockchip_user_fb_create,
+};
+
+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;
+}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.h b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h
new file mode 100644
index 0000000..6258de6
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h
@@ -0,0 +1,28 @@
+/*
+ *
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_fb.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_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_mode_config_init(struct drm_device *dev);
+
+#endif /* _ROCKCHIP_DRM_FB_H_ */
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
new file mode 100644
index 0000000..d32fa57
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_fbdev.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 <drm/drmP.h>
+#include <drm/drm_fb_cma_helper.h>
+
+#include <drm/rockchip_drm.h>
+
+#include "rockchip_drm_drv.h"
+
+#define MAX_CONNECTOR 4
+#define PREFERRED_BPP 32
+
+int rockchip_drm_fbdev_init(struct drm_device *dev)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+ struct drm_fbdev_cma *fbdev_cma;
+ unsigned int num_crtc;
+
+ if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
+ return 0;
+
+ if (private->fbdev_cma) {
+ DRM_ERROR("no allow to reinit cma fbdev\n");
+ return -EINVAL;
+ }
+
+ num_crtc = dev->mode_config.num_crtc;
+
+ fbdev_cma = drm_fbdev_cma_init(dev, PREFERRED_BPP, num_crtc,
+ MAX_CONNECTOR);
+ if (!fbdev_cma) {
+ DRM_ERROR("failed to init cma fbdev\n");
+ return -ENOMEM;
+ }
+
+ private->fbdev_cma = fbdev_cma;
+
+ return 0;
+}
+
+void rockchip_drm_fbdev_fini(struct drm_device *dev)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+
+ if (!private || !private->fbdev_cma)
+ return;
+
+ drm_fbdev_cma_fini(private->fbdev_cma);
+}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h
new file mode 100644
index 0000000..91cb535
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h
@@ -0,0 +1,24 @@
+/*
+ *
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_fbdev.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_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_ */
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
new file mode 100644
index 0000000..f0219cd
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -0,0 +1,163 @@
+/*
+ *
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_gem.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 <drm/drmP.h>
+#include <drm/drm_vma_manager.h>
+#include <drm/drm_gem_cma_helper.h>
+
+#include <drm/rockchip_drm.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_gem.h"
+
+int rockchip_drm_gem_create_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_rockchip_gem_create *args = data;
+ struct drm_gem_cma_object *cma_obj;
+ struct drm_gem_object *gem_obj;
+ int ret;
+
+ cma_obj = drm_gem_cma_create(dev, args->size);
+ if (IS_ERR(cma_obj))
+ return PTR_ERR_OR_ZERO(cma_obj);
+
+ gem_obj = &cma_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, gem_obj, &args->handle);
+ if (ret)
+ goto err_handle_create;
+
+ /* drop reference from allocate - handle holds it now. */
+ drm_gem_object_unreference_unlocked(gem_obj);
+
+ return PTR_ERR_OR_ZERO(cma_obj);
+
+err_handle_create:
+ drm_gem_cma_free_object(gem_obj);
+ return ret;
+}
+
+int rockchip_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_rockchip_gem_map_off *args = data;
+
+ DRM_DEBUG_KMS("handle = 0x%x, offset = 0x%lx\n",
+ args->handle, (unsigned long)args->offset);
+
+ return drm_gem_cma_dumb_map_offset(file_priv, dev, args->handle,
+ &args->offset);
+}
+
+int rockchip_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_rockchip_gem_mmap *args = data;
+ struct drm_gem_object *obj;
+ unsigned long addr;
+
+ mutex_lock(&dev->struct_mutex);
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (!obj) {
+ DRM_ERROR("failed to lookup gem object.\n");
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ addr = vm_mmap(obj->filp, 0, args->size, PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0);
+
+ drm_gem_object_unreference(obj);
+
+ if (IS_ERR_VALUE(addr)) {
+ mutex_unlock(&dev->struct_mutex);
+ return (int)addr;
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ args->mapped = addr;
+
+ DRM_DEBUG_KMS("mapped = 0x%lx\n", (unsigned long)args->mapped);
+
+ return 0;
+}
+
+int rockchip_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_rockchip_gem_info *args = data;
+ struct drm_gem_object *obj;
+
+ mutex_lock(&dev->struct_mutex);
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (!obj) {
+ DRM_ERROR("failed to lookup gem object.\n");
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ args->size = obj->size;
+
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+int rockchip_drm_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 = 0;
+
+ mutex_lock(&dev->struct_mutex);
+
+ /*
+ * get offset of memory allocated for drm framebuffer.
+ * - this callback would be called by user application
+ * with DRM_IOCTL_MODE_MAP_DUMB command.
+ */
+
+ 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%lx\n", (unsigned long)*offset);
+
+out:
+ drm_gem_object_unreference(obj);
+unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h
new file mode 100644
index 0000000..fe8285f
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * 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_
+
+/*
+ * request gem object creation and buffer allocation as the size
+ * that it is calculated with framebuffer information such as width,
+ * height and bpp.
+ */
+int rockchip_drm_gem_create_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/* get buffer offset to map to user space. */
+int rockchip_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/*
+ * mmap the physically continuous memory that a gem object contains
+ * to user space.
+ */
+int rockchip_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/* get buffer information to memory region allocated by gem. */
+int rockchip_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+#endif
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_lcdc.c b/drivers/gpu/drm/rockchip/rockchip_drm_lcdc.c
new file mode 100644
index 0000000..98bfbab
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_lcdc.c
@@ -0,0 +1,722 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * based on exynos_drm_fimd.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 <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_cma_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 <drm/rockchip_drm.h>
+
+#include <video/of_display_timing.h>
+#include <video/of_videomode.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_fbdev.h"
+#include "rockchip_drm_lcdc.h"
+
+#define LCDC_DEFAULT_FRAMERATE 60
+
+#define ROCKCHIP_DISPLAY_TYPE_LCD (ROCKCHIP_DISPLAY_TYPE_RGB | \
+ ROCKCHIP_DISPLAY_TYPE_LVDS | \
+ ROCKCHIP_DISPLAY_TYPE_EDP)
+
+static const uint32_t formats[] = {
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ARGB8888,
+};
+
+struct rockchip_plane {
+ int zpos;
+ struct drm_plane base;
+};
+
+struct lcdc_context {
+ struct device *dev;
+ struct drm_device *drm_dev;
+ struct drm_crtc crtc;
+ struct drm_pending_vblank_event *event;
+ struct drm_display_mode mode;
+ struct drm_plane *plane;
+ struct lcdc_driver *drv;
+ unsigned int default_win;
+ unsigned int dpms;
+ int pipe;
+ wait_queue_head_t wait_vsync_queue;
+ atomic_t wait_vsync_event;
+};
+
+#define to_lcdc_data(x) ((x)->drv->data)
+#define to_lcdc_ctx(x) container_of(x, struct lcdc_context, crtc)
+#define to_rockchip_plane(x) container_of(x, struct rockchip_plane, base)
+
+const struct of_device_id lcdc_driver_dt_match[] = {
+#ifdef CONFIG_LCDC_RK3288
+ { .compatible = "rockchip,rk3288-lcdc",
+ .data = (void *)&rockchip_rk3288_lcdc },
+#endif
+ {},
+};
+
+static inline struct lcdc_driver_data *drm_lcdc_get_driver_data(
+ struct platform_device *pdev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(lcdc_driver_dt_match, &pdev->dev);
+
+ return (struct lcdc_driver_data *)of_id->data;
+}
+
+static int rockchip_plane_get_size(int start, unsigned length, unsigned last)
+{
+ int end = start + length;
+ int size = 0;
+
+ if (start <= 0) {
+ if (end > 0)
+ size = min_t(unsigned, end, last);
+ } else if (start <= last) {
+ size = min_t(unsigned, last - start, length);
+ }
+
+ return size;
+}
+
+static int rockchip_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)
+{
+ struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane);
+ struct lcdc_context *ctx = to_lcdc_ctx(crtc);
+ struct lcdc_driver_data *lcdc_data = to_lcdc_data(ctx);
+ struct drm_gem_cma_object *gem;
+ struct lcdc_win_data *win_data;
+ unsigned long offset;
+ unsigned int actual_w;
+ unsigned int actual_h;
+ int win;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ gem = drm_fb_cma_get_gem_obj(fb, 0);
+ if (!gem) {
+ DRM_ERROR("fail to get cma object from framebuffer\n");
+ return -EINVAL;
+ }
+
+ actual_w = rockchip_plane_get_size(crtc_x,
+ crtc_w, crtc->mode.hdisplay);
+ actual_h = rockchip_plane_get_size(crtc_y,
+ crtc_h, crtc->mode.vdisplay);
+ if (crtc_x < 0) {
+ if (actual_w)
+ src_x -= crtc_x;
+ crtc_x = 0;
+ }
+
+ if (crtc_y < 0) {
+ if (actual_h)
+ src_y -= crtc_y;
+ crtc_y = 0;
+ }
+
+ win = rockchip_plane->zpos;
+ if (win == DEFAULT_ZPOS)
+ win = ctx->default_win;
+
+ if (win < 0 || win >= ZPOS_MAX_NUM)
+ return -EINVAL;
+
+ offset = (src_x >> 16) * (fb->bits_per_pixel >> 3);
+ offset += (src_y >> 16) * fb->pitches[0];
+
+ DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, fb->pitches[0]);
+
+ win_data = lcdc_data->get_win(ctx->drv, win);
+
+ win_data->xpos = crtc_x;
+ win_data->ypos = crtc_y;
+ win_data->xsize = actual_w;
+ win_data->ysize = actual_h;
+ win_data->xact = fb->width;
+ win_data->yact = fb->height;
+ win_data->y_vir_stride = fb->pitches[0] / (fb->bits_per_pixel >> 3);
+ win_data->yrgb_addr = gem->paddr + offset;
+ win_data->uv_addr = 0;
+ win_data->alpha_en = false;
+
+ switch (fb->pixel_format) {
+ case DRM_FORMAT_ARGB8888:
+ win_data->alpha_en = true;
+ case DRM_FORMAT_XRGB8888:
+ win_data->format = ARGB888;
+ break;
+ case DRM_FORMAT_RGB565:
+ win_data->format = RGB565;
+ win_data->y_vir_stride =
+ ((win_data->y_vir_stride * 3) >> 2)
+ + win_data->y_vir_stride % 3;
+ break;
+ default:
+ DRM_DEBUG_KMS("invalid pixel size so using unpacked 24bpp.\n");
+ win_data->alpha_en = false;
+ win_data->format = ARGB888;
+ break;
+ }
+ win_data->enabled = true;
+ DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n",
+ win_data->xpos, win_data->ypos);
+ DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
+ win_data->xsize, win_data->ysize);
+ DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->yrgb_addr);
+ DRM_DEBUG_KMS("fb_width = %d, actual_w = %d\n",
+ fb->width, actual_w);
+
+ lcdc_data->win_commit(ctx->drv, win_data);
+ return 0;
+}
+
+static int rockchip_disable_plane(struct drm_plane *plane)
+{
+ struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane);
+ struct lcdc_context *ctx = to_lcdc_ctx(plane->crtc);
+ struct lcdc_driver_data *lcdc_data = to_lcdc_data(ctx);
+ struct lcdc_win_data *win_data;
+ int win = rockchip_plane->zpos;
+
+ if (win == DEFAULT_ZPOS)
+ win = ctx->default_win;
+
+ if (win < 0 || win >= ZPOS_MAX_NUM)
+ return -EINVAL;
+
+ win_data = lcdc_data->get_win(ctx->drv, win);
+
+ win_data->enabled = false;
+ lcdc_data->win_commit(ctx->drv, win_data);
+
+ return 0;
+}
+
+static void rockchip_plane_destroy(struct drm_plane *plane)
+{
+ struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane);
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ rockchip_disable_plane(plane);
+ drm_plane_cleanup(plane);
+ kfree(rockchip_plane);
+}
+
+static int rockchip_plane_set_property(struct drm_plane *plane,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct drm_device *dev = plane->dev;
+ struct rockchip_plane *rockchip_plane = to_rockchip_plane(plane);
+ struct rockchip_drm_private *dev_priv = dev->dev_private;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ if (property == dev_priv->plane_zpos_property) {
+ rockchip_plane->zpos = val;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static struct drm_plane_funcs rockchip_plane_funcs = {
+ .update_plane = rockchip_update_plane,
+ .disable_plane = rockchip_disable_plane,
+ .destroy = rockchip_plane_destroy,
+ .set_property = rockchip_plane_set_property,
+};
+
+static void rockchip_plane_attach_zpos_property(struct drm_plane *plane)
+{
+ struct drm_device *dev = plane->dev;
+ struct rockchip_drm_private *dev_priv = dev->dev_private;
+ struct drm_property *prop;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ prop = dev_priv->plane_zpos_property;
+ if (!prop) {
+ prop = drm_property_create_range(dev, 0, "zpos", 0,
+ MAX_PLANE - 1);
+ if (!prop)
+ return;
+
+ dev_priv->plane_zpos_property = prop;
+ }
+
+ drm_object_attach_property(&plane->base, prop, 0);
+}
+
+struct drm_plane *rockchip_plane_init(struct drm_device *dev,
+ unsigned long possible_crtcs, bool priv)
+{
+ struct rockchip_plane *rockchip_plane;
+ struct rockchip_drm_private *private = dev->dev_private;
+ enum drm_plane_type type;
+ int err;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ rockchip_plane = kzalloc(sizeof(*rockchip_plane), GFP_KERNEL);
+ if (!rockchip_plane)
+ return NULL;
+
+ type = priv ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
+ err = drm_universal_plane_init(dev, &rockchip_plane->base,
+ possible_crtcs, &rockchip_plane_funcs,
+ formats, ARRAY_SIZE(formats), type);
+ if (err) {
+ DRM_ERROR("failed to initialize plane\n");
+ kfree(rockchip_plane);
+ return NULL;
+ }
+
+ if (priv) {
+ rockchip_plane->base.crtc = private->crtc[0];
+ rockchip_plane->zpos = DEFAULT_ZPOS;
+ } else {
+ rockchip_plane_attach_zpos_property(&rockchip_plane->base);
+ }
+
+ return &rockchip_plane->base;
+}
+
+int rockchip_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+ struct lcdc_context *ctx = to_lcdc_ctx(private->crtc[pipe]);
+ struct lcdc_driver_data *lcdc_data = to_lcdc_data(ctx);
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ if (ctx->dpms != DRM_MODE_DPMS_ON)
+ return -EPERM;
+
+ lcdc_data->enable_vblank(ctx->drv);
+
+ return 0;
+}
+
+void rockchip_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
+{
+ struct rockchip_drm_private *private = dev->dev_private;
+ struct lcdc_context *ctx = to_lcdc_ctx(private->crtc[pipe]);
+ struct lcdc_driver_data *lcdc_data = to_lcdc_data(ctx);
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ if (ctx->dpms != DRM_MODE_DPMS_ON)
+ return;
+
+ lcdc_data->disable_vblank(ctx->drv);
+}
+
+static void rockchip_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct lcdc_context *ctx = to_lcdc_ctx(crtc);
+ struct lcdc_driver_data *lcdc_data = to_lcdc_data(ctx);
+
+ DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
+
+ if (ctx->dpms == mode) {
+ DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
+ return;
+ }
+
+ if (mode > DRM_MODE_DPMS_ON) {
+ /* wait for the completion of page flip. */
+ if (!wait_event_timeout(ctx->wait_vsync_queue,
+ !atomic_read(&ctx->wait_vsync_event),
+ HZ/20))
+ DRM_DEBUG_KMS("vblank wait timed out.\n");
+ drm_vblank_off(crtc->dev, ctx->pipe);
+ }
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ lcdc_data->dpms(ctx->drv, DRM_MODE_DPMS_ON);
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ lcdc_data->dpms(ctx->drv, DRM_MODE_DPMS_OFF);
+ break;
+ default:
+ DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+ break;
+ }
+
+ ctx->dpms = mode;
+}
+
+static void rockchip_drm_crtc_prepare(struct drm_crtc *crtc)
+{
+ /* drm framework doesn't check NULL. */
+}
+
+static bool rockchip_drm_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ /* just do dummy now */
+
+ return true;
+}
+
+static int rockchip_drm_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 lcdc_context *ctx = to_lcdc_ctx(crtc);
+ struct lcdc_driver_data *lcdc_data = to_lcdc_data(ctx);
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ /* nothing to do if we haven't set the mode yet */
+ if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0)
+ return -EINVAL;
+
+ drm_mode_copy(&ctx->mode, adjusted_mode);
+ lcdc_data->mode_set(ctx->drv, &ctx->mode);
+
+ return 0;
+}
+static int rockchip_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct lcdc_context *ctx = to_lcdc_ctx(crtc);
+ unsigned int crtc_w;
+ unsigned int crtc_h;
+ int ret;
+
+ crtc_w = crtc->primary->fb->width - crtc->x;
+ crtc_h = crtc->primary->fb->height - crtc->y;
+
+ ret = rockchip_update_plane(ctx->plane, crtc, crtc->primary->fb, 0, 0,
+ crtc_w, crtc_h, crtc->x, crtc->y, crtc_w,
+ crtc_h);
+ if (ret < 0) {
+ DRM_ERROR("fail to update plane\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void rockchip_drm_crtc_commit(struct drm_crtc *crtc)
+{
+ rockchip_drm_crtc_mode_set_base(crtc, crtc->x, crtc->y,
+ crtc->primary->fb);
+}
+
+static struct drm_crtc_helper_funcs rockchip_crtc_helper_funcs = {
+ .dpms = rockchip_drm_crtc_dpms,
+ .prepare = rockchip_drm_crtc_prepare,
+ .mode_fixup = rockchip_drm_crtc_mode_fixup,
+ .mode_set = rockchip_drm_crtc_mode_set,
+ .mode_set_base = rockchip_drm_crtc_mode_set_base,
+ .commit = rockchip_drm_crtc_commit,
+};
+
+static int rockchip_drm_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t page_flip_flags)
+{
+ struct drm_device *dev = crtc->dev;
+ struct lcdc_context *ctx = to_lcdc_ctx(crtc);
+ struct drm_framebuffer *old_fb = crtc->primary->fb;
+ unsigned int crtc_w;
+ unsigned int crtc_h;
+ int ret = -EINVAL;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ /* when the page flip is requested, crtc's dpms should be on */
+ if (ctx->dpms > DRM_MODE_DPMS_ON) {
+ DRM_ERROR("failed page flip request.\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->struct_mutex);
+
+ /*
+ * the pipe from user always is 0 so we can set pipe number
+ * of current owner to event.
+ */
+ ret = drm_vblank_get(dev, ctx->pipe);
+ if (ret) {
+ DRM_DEBUG("failed to acquire vblank counter\n");
+ goto out;
+ }
+
+ spin_lock_irq(&dev->event_lock);
+ if (ctx->event) {
+ spin_unlock_irq(&dev->event_lock);
+ DRM_ERROR("already pending flip!\n");
+ ret = -EBUSY;
+ goto out;
+ }
+ ctx->event = event;
+ atomic_set(&ctx->wait_vsync_event, 1);
+ spin_unlock_irq(&dev->event_lock);
+
+ crtc->primary->fb = fb;
+ crtc_w = crtc->primary->fb->width - crtc->x;
+ crtc_h = crtc->primary->fb->height - crtc->y;
+
+ ret = rockchip_update_plane(ctx->plane, crtc, fb, 0, 0, crtc_w, crtc_h,
+ crtc->x, crtc->y, crtc_w, crtc_h);
+ if (ret) {
+ crtc->primary->fb = old_fb;
+
+ spin_lock_irq(&dev->event_lock);
+ drm_vblank_put(dev, ctx->pipe);
+ atomic_set(&ctx->wait_vsync_event, 0);
+ ctx->event = NULL;
+ spin_unlock_irq(&dev->event_lock);
+
+ goto out;
+ }
+out:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
+
+void rockchip_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
+{
+ struct rockchip_drm_private *dev_priv = dev->dev_private;
+ struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
+ struct lcdc_context *ctx;
+ struct drm_pending_vblank_event *event;
+ unsigned long flags;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ if (!drm_crtc)
+ return;
+
+ ctx = to_lcdc_ctx(drm_crtc);
+ event = ctx->event;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ if (event) {
+ ctx->event = NULL;
+ drm_send_vblank_event(dev, -1, event);
+ drm_vblank_put(dev, pipe);
+ atomic_set(&ctx->wait_vsync_event, 0);
+ wake_up(&ctx->wait_vsync_queue);
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+void rockchip_drm_crtc_cancel_pending_flip(struct drm_device *dev)
+{
+ int i;
+
+ DRM_DEBUG_KMS("cancle pending flip\n");
+ for (i = 0; i < dev->num_crtcs; i++)
+ rockchip_drm_crtc_finish_pageflip(dev, i);
+}
+
+static void rockchip_drm_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct lcdc_context *ctx = to_lcdc_ctx(crtc);
+ struct rockchip_drm_private *private = crtc->dev->dev_private;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ private->crtc[ctx->pipe] = NULL;
+
+ drm_crtc_cleanup(crtc);
+}
+
+static struct drm_crtc_funcs rockchip_crtc_funcs = {
+ .set_config = drm_crtc_helper_set_config,
+ .page_flip = rockchip_drm_crtc_page_flip,
+ .destroy = rockchip_drm_crtc_destroy,
+};
+
+void lcdc_vsync_event_handler(struct device *dev)
+{
+ struct drm_pending_vblank_event *event;
+ struct lcdc_context *ctx = dev_get_drvdata(dev);
+ struct drm_device *drm_dev;
+ unsigned long flags;
+
+ DRM_DEBUG_KMS("LINE[%d]\n", __LINE__);
+ /* check the crtc is detached already from encoder */
+ if (ctx && (ctx->pipe < 0 || !ctx->drm_dev))
+ return;
+
+ drm_handle_vblank(ctx->drm_dev, ctx->pipe);
+
+ event = ctx->event;
+ drm_dev = ctx->drm_dev;
+
+ spin_lock_irqsave(&drm_dev->event_lock, flags);
+
+ if (event) {
+ ctx->event = NULL;
+ drm_send_vblank_event(drm_dev, -1, event);
+ drm_vblank_put(drm_dev, ctx->pipe);
+ atomic_set(&ctx->wait_vsync_event, 0);
+ wake_up(&ctx->wait_vsync_queue);
+ }
+
+ spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+}
+
+static int lcdc_bind(struct device *dev, struct device *master, void *data)
+{
+ struct drm_device *drm_dev = data;
+ struct rockchip_drm_private *private = drm_dev->dev_private;
+ struct lcdc_context *ctx = dev_get_drvdata(dev);
+ struct drm_crtc *crtc;
+
+ ctx->drm_dev = drm_dev;
+
+ ctx->pipe = rockchip_drm_pipe_get(dev);
+ ctx->dpms = DRM_MODE_DPMS_OFF;
+ crtc = &ctx->crtc;
+
+ private->crtc[ctx->pipe] = crtc;
+ ctx->plane = rockchip_plane_init(drm_dev, 1 << ctx->pipe, true);
+ drm_crtc_init_with_planes(drm_dev, crtc, ctx->plane, NULL, &rockchip_crtc_funcs);
+ drm_crtc_helper_add(crtc, &rockchip_crtc_helper_funcs);
+
+ /*
+ * enable drm irq mode.
+ * - with irq_enabled = true, we can use the vblank feature.
+ *
+ * P.S. note that we wouldn't use drm irq handler but
+ * just specific driver own one instead because
+ * drm framework supports only one irq handler.
+ */
+ drm_dev->irq_enabled = true;
+
+ /*
+ * 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;
+
+ return 0;
+}
+
+static void lcdc_unbind(struct device *dev, struct device *master,
+ void *data)
+{ struct drm_device *drm_dev = data;
+ struct rockchip_drm_private *private = drm_dev->dev_private;
+ struct lcdc_context *ctx = dev_get_drvdata(dev);
+ struct drm_crtc *crtc = &ctx->crtc;
+
+ drm_crtc_cleanup(crtc);
+ private->crtc[ctx->pipe] = NULL;
+}
+
+static const struct component_ops lcdc_component_ops = {
+ .bind = lcdc_bind,
+ .unbind = lcdc_unbind,
+};
+
+static int lcdc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct lcdc_context *ctx;
+ struct lcdc_driver *lcdc_drv;
+ struct lcdc_driver_data *lcdc_data = drm_lcdc_get_driver_data(pdev);
+ int ret = -EINVAL;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ if (!(lcdc_data->num_win && lcdc_data->init &&
+ lcdc_data->deinit && lcdc_data->dpms &&
+ lcdc_data->mode_set && lcdc_data->enable_vblank &&
+ lcdc_data->disable_vblank &&
+ lcdc_data->win_commit)) {
+ DRM_ERROR("lcdc driver ops is Incomplete\n");
+ return -EINVAL;
+ }
+ lcdc_drv = lcdc_data->init(pdev);
+ if (!lcdc_drv)
+ return -EINVAL;
+
+ lcdc_drv->data = lcdc_data;
+ ret = rockchip_drm_component_add(&pdev->dev, ROCKCHIP_DEVICE_TYPE_CRTC,
+ ROCKCHIP_DISPLAY_TYPE_LCD, ctx);
+ if (ret)
+ goto err_deinit_lcdc;
+
+ ctx->dev = dev;
+ ctx->default_win = ZPOS_DEFAULT_WIN;
+
+ ctx->drv = lcdc_drv;
+
+ init_waitqueue_head(&ctx->wait_vsync_queue);
+ atomic_set(&ctx->wait_vsync_event, 0);
+
+ platform_set_drvdata(pdev, ctx);
+
+ pm_runtime_enable(&pdev->dev);
+
+ ret = component_add(&pdev->dev, &lcdc_component_ops);
+ if (ret)
+ goto err_disable_pm_runtime;
+
+ return ret;
+
+err_disable_pm_runtime:
+ pm_runtime_disable(dev);
+ rockchip_drm_component_del(dev, ROCKCHIP_DEVICE_TYPE_CRTC);
+err_deinit_lcdc:
+ lcdc_data->deinit(ctx->drv);
+ return ret;
+}
+
+static int lcdc_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+
+ component_del(&pdev->dev, &lcdc_component_ops);
+ rockchip_drm_component_del(&pdev->dev, ROCKCHIP_DEVICE_TYPE_CRTC);
+
+ return 0;
+}
+
+struct platform_driver rockchip_lcdc_platform_driver = {
+ .probe = lcdc_probe,
+ .remove = lcdc_remove,
+ .driver = {
+ .name = "rockchip-lcdc",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(lcdc_driver_dt_match),
+ },
+};
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_lcdc.h b/drivers/gpu/drm/rockchip/rockchip_drm_lcdc.h
new file mode 100644
index 0000000..0a0f9c2
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_lcdc.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:mark yao <mark.yao@xxxxxxxxxxxxxx>
+ *
+ * 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_LCDC_H_
+#define _ROCKCHIP_DRM_LCDC_H_
+#include <linux/platform_device.h>
+#include <drm/drm_crtc.h>
+
+#include "rockchip_drm_drv.h"
+
+enum {
+ ZPOS_DEFAULT_WIN = 0,
+ ZPOS_CURSOR_WIN,
+ ZPOS_MAX_NUM,
+ ZPOS_UNUSED_WIN
+};
+
+enum data_format {
+ ARGB888 = 0,
+ RGB888,
+ RGB565,
+ YUV420 = 4,
+ YUV422,
+ YUV444,
+ XRGB888,
+ XBGR888,
+ ABGR888,
+ YUV420_A = 10,
+ YUV422_A,
+ YUV444_A
+};
+
+struct lcdc_win_data {
+ int zpos;
+ int id;
+ enum data_format format;
+ u32 xact;
+ u32 yact;
+ u32 xsize;
+ u32 ysize;
+ u32 xpos;
+ u32 ypos;
+ u32 y_vir_stride;
+ u32 uv_vir_stride;
+ bool alpha_en;
+ bool enabled;
+ bool resume;
+
+ dma_addr_t yrgb_addr;
+ dma_addr_t uv_addr;
+
+ int dsp_stx;
+ int dsp_sty;
+ /* win sel layer */
+ int z_order;
+ u8 fmt_cfg;
+ u8 fmt_10;
+ u8 swap_rb;
+ u32 reserved;
+ u32 area_num;
+ u32 scale_yrgb_x;
+ u32 scale_yrgb_y;
+ u32 scale_cbcr_x;
+ u32 scale_cbcr_y;
+ bool support_3d;
+
+ u8 win_lb_mode;
+
+ u8 bic_coe_el;
+ /* h 01:scale up ;10:down */
+ u8 yrgb_hor_scl_mode;
+ /* v 01:scale up ;10:down */
+ u8 yrgb_ver_scl_mode;
+ /* h scale down mode */
+ u8 yrgb_hsd_mode;
+ /* v scale up mode */
+ u8 yrgb_vsu_mode;
+ /* v scale down mode */
+ u8 yrgb_vsd_mode;
+ u8 cbr_hor_scl_mode;
+ u8 cbr_ver_scl_mode;
+ u8 cbr_hsd_mode;
+ u8 cbr_vsu_mode;
+ u8 cbr_vsd_mode;
+ u8 vsd_yrgb_gt4;
+ u8 vsd_yrgb_gt2;
+ u8 vsd_cbr_gt4;
+ u8 vsd_cbr_gt2;
+
+ u32 alpha_mode;
+ u32 g_alpha_val;
+ u32 color_key_val;
+};
+
+struct lcdc_driver_data {
+ int num_win;
+ struct lcdc_driver * (*init)(struct platform_device *pdev);
+ void (*deinit)(struct lcdc_driver *drv);
+ void (*dpms)(struct lcdc_driver *drv, int mode);
+ void (*mode_set)(struct lcdc_driver *drv,
+ struct drm_display_mode *mode);
+ void (*enable_vblank)(struct lcdc_driver *drv);
+ void (*disable_vblank)(struct lcdc_driver *drv);
+ struct lcdc_win_data * (*get_win)(struct lcdc_driver *drv, int zpos);
+ void (*win_commit)(struct lcdc_driver *drv,
+ struct lcdc_win_data *win);
+};
+
+struct lcdc_driver {
+ int id;
+
+ struct lcdc_driver_data *data;
+};
+
+
+void lcdc_vsync_event_handler(struct device *dev);
+#ifdef CONFIG_LCDC_RK3288
+extern struct lcdc_driver_data rockchip_rk3288_lcdc;
+#endif
+#endif /* _ROCKCHIP_DRM_LCDC_H_ */
diff --git a/include/uapi/drm/rockchip_drm.h b/include/uapi/drm/rockchip_drm.h
new file mode 100644
index 0000000..1b567f7
--- /dev/null
+++ b/include/uapi/drm/rockchip_drm.h
@@ -0,0 +1,110 @@
+/*
+ *
+ * Copyright (c) Fuzhou Rockchip Electronics Co.Ltd
+ * Authors:
+ * mark yao <yzq@xxxxxxxxxxxxxx>
+ *
+ * base on exynos_drm.h
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _UAPI_ROCKCHIP_DRM_H_
+#define _UAPI_ROCKCHIP_DRM_H_
+
+#include <drm/drm.h>
+
+/**
+ * User-desired buffer creation information structure.
+ *
+ * @size: user-desired memory allocation size.
+ * - this size value would be page-aligned internally.
+ * @flags: user request for setting memory type or cache attributes.
+ * @handle: returned a handle to created gem object.
+ * - this handle will be set by gem module of kernel side.
+ */
+struct drm_rockchip_gem_create {
+ uint64_t size;
+ unsigned int flags;
+ unsigned int handle;
+};
+
+/**
+ * A structure for getting buffer offset.
+ *
+ * @handle: a pointer to gem object created.
+ * @pad: just padding to be 64-bit aligned.
+ * @offset: relatived offset value of the memory region allocated.
+ * - this value should be set by user.
+ */
+struct drm_rockchip_gem_map_off {
+ unsigned int handle;
+ unsigned int pad;
+ uint64_t offset;
+};
+
+/**
+ * A structure for mapping buffer.
+ *
+ * @handle: a handle to gem object created.
+ * @pad: just padding to be 64-bit aligned.
+ * @size: memory size to be mapped.
+ * @mapped: having user virtual address mmaped.
+ * - this variable would be filled by rockchip gem module
+ * of kernel side with user virtual address which is allocated
+ * by do_mmap().
+ */
+struct drm_rockchip_gem_mmap {
+ unsigned int handle;
+ unsigned int pad;
+ uint64_t size;
+ uint64_t mapped;
+};
+
+/**
+ * A structure to gem information.
+ *
+ * @handle: a handle to gem object created.
+ * @flags: flag value including memory type and cache attribute and
+ * this value would be set by driver.
+ * @size: size to memory region allocated by gem and this size would
+ * be set by driver.
+ */
+struct drm_rockchip_gem_info {
+ unsigned int handle;
+ unsigned int flags;
+ uint64_t size;
+};
+
+/* memory type definitions. */
+enum e_drm_rockchip_gem_mem_type {
+ /* non-cachable mapping and used as default. */
+ ROCKCHIP_BO_NONCACHABLE = 0 << 0,
+ /* cachable mapping. */
+ ROCKCHIP_BO_CACHABLE = 1 << 0,
+ /* write-combine mapping. */
+ ROCKCHIP_BO_WC = 1 << 1,
+ ROCKCHIP_BO_MASK = ROCKCHIP_BO_CACHABLE | ROCKCHIP_BO_WC
+};
+
+#define DRM_ROCKCHIP_GEM_CREATE 0x00
+#define DRM_ROCKCHIP_GEM_MAP_OFFSET 0x01
+#define DRM_ROCKCHIP_GEM_MMAP 0x02
+/* Reserved 0x03 ~ 0x05 for rockchip specific gem ioctl */
+#define DRM_ROCKCHIP_GEM_GET 0x04
+
+#define DRM_IOCTL_ROCKCHIP_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_ROCKCHIP_GEM_CREATE, struct drm_rockchip_gem_create)
+
+#define DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_ROCKCHIP_GEM_MAP_OFFSET, struct drm_rockchip_gem_map_off)
+
+#define DRM_IOCTL_ROCKCHIP_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_ROCKCHIP_GEM_MMAP, struct drm_rockchip_gem_mmap)
+
+#define DRM_IOCTL_ROCKCHIP_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_ROCKCHIP_GEM_GET, struct drm_rockchip_gem_info)
+#endif /* _UAPI_ROCKCHIP_DRM_H_ */
--
1.7.9.5

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