Commit 2048e328 authored by Mark Yao's avatar Mark Yao Committed by yzq

drm: rockchip: Add basic drm driver

This patch adds the basic structure of a DRM Driver for Rockchip Socs.
Signed-off-by: default avatarMark Yao <mark.yao@rock-chips.com>
Signed-off-by: default avatarDaniel Kurtz <djkurtz@chromium.org>
Acked-by: default avatarDaniel Vetter <daniel@ffwll.ch>
Reviewed-by: default avatarRob Clark <robdclark@gmail.com>
parent 656d7077
......@@ -167,6 +167,8 @@ 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"
......
......@@ -49,6 +49,7 @@ 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/
......
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.
#
# 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
This diff is collapsed.
/*
* 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_ */
/*
* 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;
}
/*
* 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 */
/*
* 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);
}
/*
* 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 */
/*
* 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 */
}
/*
* 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 */
This diff is collapsed.
/*
* 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 */
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