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drm/fbdev-generic: Set screen size to size of GEM buffer

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The size of the screen memory should be equivalent to the size of
the screen's GEM buffer. Don't recalculate the value.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320150751.20399-6-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-03-20 16:07:48 +01:00
parent 24dc4f4c2a
commit 8fbc9af55d
1 changed files with 6 additions and 5 deletions
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11
drivers/gpu/drm/drm_fbdev_generic.c
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@ -7,6 +7,7 @@
#include <drm/drm_drv.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem.h>
#include <drm/drm_print.h>
#include <drm/drm_fbdev_generic.h>
@ -74,8 +75,8 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
struct drm_client_buffer *buffer;
struct drm_framebuffer *fb;
struct fb_info *info;
size_t screen_size;
u32 format;
int ret;
@ -91,20 +92,20 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
fb_helper->buffer = buffer;
fb_helper->fb = buffer->fb;
fb = buffer->fb;
screen_size = buffer->gem->size;
info = drm_fb_helper_alloc_info(fb_helper);
if (IS_ERR(info))
return PTR_ERR(info);
info->fbops = &drm_fbdev_fb_ops;
info->screen_size = sizes->surface_height * fb->pitches[0];
info->fix.smem_len = info->screen_size;
info->screen_size = screen_size;
info->fix.smem_len = screen_size;
info->flags = FBINFO_DEFAULT;
drm_fb_helper_fill_info(info, fb_helper, sizes);
info->screen_buffer = vzalloc(info->screen_size);
info->screen_buffer = vzalloc(screen_size);
if (!info->screen_buffer)
return -ENOMEM;
info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;