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drm/fbdev-generic: Remove unused prefer_shadow_fbdev flag 

Remove the flag prefer_shadow_fbdev from struct drm_mode_config.
Drivers set this flag to enable shadow buffering in the generic
fbdev emulation. Such shadow buffering is now mandatory, so the
flag is unused.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320150751.20399-3-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-03-20 16:07:45 +01:00 committed by Junxiao Chang
parent 04d86e518c
commit a5671bee6d
3 changed files with 0 additions and 9 deletions
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1
drivers/gpu/drm/tiny/bochs.c
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@ -545,7 +545,6 @@ static int bochs_kms_init(struct bochs_device *bochs)
bochs->dev->mode_config.preferred_depth = 24;
bochs->dev->mode_config.prefer_shadow = 0;
bochs->dev->mode_config.prefer_shadow_fbdev = 1;
bochs->dev->mode_config.quirk_addfb_prefer_host_byte_order = true;
bochs->dev->mode_config.funcs = &bochs_mode_funcs;

1
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -2052,7 +2052,6 @@ int vmw_kms_init(struct vmw_private *dev_priv)
dev->mode_config.max_width = dev_priv->texture_max_width;
dev->mode_config.max_height = dev_priv->texture_max_height;
dev->mode_config.preferred_depth = dev_priv->assume_16bpp ? 16 : 32;
dev->mode_config.prefer_shadow_fbdev = !dev_priv->has_mob;
drm_mode_create_suggested_offset_properties(dev);
vmw_kms_create_hotplug_mode_update_property(dev_priv);

7
include/drm/drm_mode_config.h
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@ -890,13 +890,6 @@ struct drm_mode_config {
/* dumb ioctl parameters */
uint32_t preferred_depth, prefer_shadow;
/**
* @prefer_shadow_fbdev:
*
* Hint to framebuffer emulation to prefer shadow-fb rendering.
*/
bool prefer_shadow_fbdev;
/**
* @quirk_addfb_prefer_xbgr_30bpp:
*