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drm/fbdev-generic: Do not set physical framebuffer address
Framebuffer memory is allocated via vzalloc() from non-contiguous physical pages. The physical framebuffer start address is therefore meaningless. Do not set it. The value is not used within the kernel and only exported to userspace on dedicated ARM configs. No functional change is expected. v2: - refer to vzalloc() in commit message (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes:a5b44c4adb
("drm/fbdev-generic: Always use shadow buffering") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Javier Martinez Canillas <javierm@redhat.com> Cc: Zack Rusin <zackr@vmware.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: <stable@vger.kernel.org> # v6.4+ Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Zack Rusin <zack.rusin@broadcom.com> Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev> Tested-by: Sui Jingfeng <sui.jingfeng@linux.dev> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-2-tzimmermann@suse.de (cherry picked from commit73ef0aecba
) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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@ -113,7 +113,6 @@ static int drm_fbdev_generic_helper_fb_probe(struct drm_fb_helper *fb_helper,
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/* screen */
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info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
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info->screen_buffer = screen_buffer;
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info->fix.smem_start = page_to_phys(vmalloc_to_page(info->screen_buffer));
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info->fix.smem_len = screen_size;
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/* deferred I/O */
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