linux_dsm_epyc7002/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
* Author:Mark Yao <mark.yao@rock-chips.com>
*/
#include <drm/drm.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fourcc.h>
drm: Split out drm_probe_helper.h Having the probe helper stuff (which pretty much everyone needs) in the drm_crtc_helper.h file (which atomic drivers should never need) is confusing. Split them out. To make sure I actually achieved the goal here I went through all drivers. And indeed, all atomic drivers are now free of drm_crtc_helper.h includes. v2: Make it compile. There was so much compile fail on arm drivers that I figured I'll better not include any of the acks on v1. v3: Massive rebase because i915 has lost a lot of drmP.h includes, but not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h there was still one, which this patch largely removes. Which means rolling out lots more includes all over. This will also conflict with ongoing drmP.h cleanup by others I expect. v3: Rebase on top of atomic bochs. v4: Review from Laurent for bridge/rcar/omap/shmob/core bits: - (re)move some of the added includes, use the better include files in other places (all suggested from Laurent adopted unchanged). - sort alphabetically v5: Actually try to sort them, and while at it, sort all the ones I touch. v6: Rebase onto i915 changes. v7: Rebase once more. Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Acked-by: CK Hu <ck.hu@mediatek.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: virtualization@lists.linux-foundation.org Cc: etnaviv@lists.freedesktop.org Cc: linux-samsung-soc@vger.kernel.org Cc: intel-gfx@lists.freedesktop.org Cc: linux-mediatek@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: spice-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-tegra@vger.kernel.org Cc: xen-devel@lists.xen.org Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch
2019-01-18 04:03:34 +07:00
#include <drm/drm_probe_helper.h>
#include "rockchip_drm_drv.h"
#include "rockchip_drm_gem.h"
#include "rockchip_drm_fb.h"
#include "rockchip_drm_fbdev.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 const struct fb_ops rockchip_drm_fbdev_ops = {
.owner = THIS_MODULE,
DRM_FB_HELPER_DEFAULT_OPS,
.fb_mmap = rockchip_fbdev_mmap,
.fb_fillrect = drm_fb_helper_cfb_fillrect,
.fb_copyarea = drm_fb_helper_cfb_copyarea,
.fb_imageblit = drm_fb_helper_cfb_imageblit,
};
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, true);
if (IS_ERR(rk_obj))
return -ENOMEM;
private->fbdev_bo = &rk_obj->base;
fbi = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(fbi)) {
DRM_DEV_ERROR(dev->dev, "Failed to create framebuffer info.\n");
ret = PTR_ERR(fbi);
goto out;
}
helper->fb = rockchip_drm_framebuffer_init(dev, &mode_cmd,
private->fbdev_bo);
if (IS_ERR(helper->fb)) {
DRM_DEV_ERROR(dev->dev,
"Failed to allocate DRM framebuffer.\n");
ret = PTR_ERR(helper->fb);
goto out;
}
fbi->fbops = &rockchip_drm_fbdev_ops;
fb = helper->fb;
drm_fb_helper_fill_info(fbi, helper, sizes);
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=%zu\n",
fb->width, fb->height, fb->format->depth,
rk_obj->kvaddr,
offset, size);
return 0;
out:
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;
int ret;
if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
return -EINVAL;
helper = &private->fbdev_helper;
drm_fb_helper_prepare(dev, helper, &rockchip_drm_fb_helper_funcs);
drm: Rely on mode_config data for fb_helper initialization Instead of receiving the num_crts as a parameter, we can read it directly from the mode_config structure. I audited the drivers that invoke this helper and I believe all of them initialize the mode_config struct accordingly, prior to calling the fb_helper. I used the following coccinelle hack to make this transformation, except for the function headers and comment updates. The first and second rules are split because I couldn't find a way to remove the unused temporary variables at the same time I removed the parameter. // <smpl> @r@ expression A,B,D,E; identifier C; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ expression A,B,C,D,E; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ identifier r.C; type T; expression V; @@ - T C; <... when != C - C = V; ...> // </smpl> Changes since v1: - Rebased on top of the tip of drm-misc-next. - Remove mention to sti since a proper fix got merged. Suggested-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 23:26:40 +07:00
ret = drm_fb_helper_init(dev, helper, ROCKCHIP_MAX_CONNECTOR);
if (ret < 0) {
DRM_DEV_ERROR(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) {
DRM_DEV_ERROR(dev->dev,
"Failed to add connectors - %d.\n", ret);
goto err_drm_fb_helper_fini;
}
ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP);
if (ret < 0) {
DRM_DEV_ERROR(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;
drm_fb_helper_unregister_fbi(helper);
if (helper->fb)
drm_framebuffer_put(helper->fb);
drm_fb_helper_fini(helper);
}