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| author | Antonino A. Daplas <adaplas@gmail.com> | 2007-05-08 00:39:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:30 -0700 |
| commit | 09aaf268eb1d22eee690d26a913f660e2081597f (patch) | |
| tree | 9179447608d1c7ee23af266d2bae2eef6d05a1c9 /drivers/video/Kconfig | |
| parent | 3f9b0880e4a96b02bc0131451f2f6231cd90bd94 (diff) | |
| download | lwn-09aaf268eb1d22eee690d26a913f660e2081597f.tar.gz lwn-09aaf268eb1d22eee690d26a913f660e2081597f.zip | |
fbdev: add fb_read/fb_write functions for framebuffers in system RAM
The functions fb_read() and fb_write in fbmem.c assume that the framebuffer
is in IO memory. However, we have 3 drivers (hecubafb, arcfb, and vfb)
where the framebuffer is allocated from system RAM (via vmalloc). Using
__raw_read/__raw_write (fb_readl/fb_writel) for these drivers is
illegal, especially in other platforms.
Create file read and write methods for these types of drivers. These are
named fb_sys_read() and fb_sys_write().
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/Kconfig')
| -rw-r--r-- | drivers/video/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 6d32726e8751..85d0e8707ee3 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -122,6 +122,11 @@ config FB_SYS_IMAGEBLIT blitting. This is used by drivers that don't provide their own (accelerated) version and the framebuffer is in system RAM. +config FB_SYS_FOPS + tristate + depends on FB + default n + config FB_DEFERRED_IO bool depends on FB |