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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-15 15:52:01 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-15 15:52:01 -0800 |
commit | 988adfdffdd43cfd841df734664727993076d7cb (patch) | |
tree | 6794f7bba8f595500c2b7d33376ad6614adcfaf2 /drivers/gpu/drm/rockchip/rockchip_drm_fb.c | |
parent | x86: mm: consolidate VM_FAULT_RETRY handling (diff) | |
parent | drm: sti: fix module compilation issue (diff) | |
download | linux-dev-988adfdffdd43cfd841df734664727993076d7cb.tar.xz linux-dev-988adfdffdd43cfd841df734664727993076d7cb.zip |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"Highlights:
- AMD KFD driver merge
This is the AMD HSA interface for exposing a lowlevel interface for
GPGPU use. They have an open source userspace built on top of this
interface, and the code looks as good as it was going to get out of
tree.
- Initial atomic modesetting work
The need for an atomic modesetting interface to allow userspace to
try and send a complete set of modesetting state to the driver has
arisen, and been suffering from neglect this past year. No more,
the start of the common code and changes for msm driver to use it
are in this tree. Ongoing work to get the userspace ioctl finished
and the code clean will probably wait until next kernel.
- DisplayID 1.3 and tiled monitor exposed to userspace.
Tiled monitor property is now exposed for userspace to make use of.
- Rockchip drm driver merged.
- imx gpu driver moved out of staging
Other stuff:
- core:
panel - MIPI DSI + new panels.
expose suggested x/y properties for virtual GPUs
- i915:
Initial Skylake (SKL) support
gen3/4 reset work
start of dri1/ums removal
infoframe tracking
fixes for lots of things.
- nouveau:
tegra k1 voltage support
GM204 modesetting support
GT21x memory reclocking work
- radeon:
CI dpm fixes
GPUVM improvements
Initial DPM fan control
- rcar-du:
HDMI support added
removed some support for old boards
slave encoder driver for Analog Devices adv7511
- exynos:
Exynos4415 SoC support
- msm:
a4xx gpu support
atomic helper conversion
- tegra:
iommu support
universal plane support
ganged-mode DSI support
- sti:
HDMI i2c improvements
- vmwgfx:
some late fixes.
- qxl:
use suggested x/y properties"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (969 commits)
drm: sti: fix module compilation issue
drm/i915: save/restore GMBUS freq across suspend/resume on gen4
drm: sti: correctly cleanup CRTC and planes
drm: sti: add HQVDP plane
drm: sti: add cursor plane
drm: sti: enable auxiliary CRTC
drm: sti: fix delay in VTG programming
drm: sti: prepare sti_tvout to support auxiliary crtc
drm: sti: use drm_crtc_vblank_{on/off} instead of drm_vblank_{on/off}
drm: sti: fix hdmi avi infoframe
drm: sti: remove event lock while disabling vblank
drm: sti: simplify gdp code
drm: sti: clear all mixer control
drm: sti: remove gpio for HDMI hot plug detection
drm: sti: allow to change hdmi ddc i2c adapter
drm/doc: Document drm_add_modes_noedid() usage
drm/i915: Remove '& 0xffff' from the mask given to WA_REG()
drm/i915: Invert the mask and val arguments in wa_add() and WA_REG()
drm: Zero out DRM object memory upon cleanup
drm/i915/bdw: Fix the write setting up the WIZ hashing mode
...
Diffstat (limited to 'drivers/gpu/drm/rockchip/rockchip_drm_fb.c')
-rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 201 |
1 files changed, 201 insertions, 0 deletions
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 000000000000..77d52893d40f --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c @@ -0,0 +1,201 @@ +/* + * 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; +} |