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authorAntonino A. Daplas <adaplas@gmail.com>2007-05-08 03:38:57 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 14:15:30 -0400
commit68648ed1f58d98b8e8d994022e5e25331fbfe42a (patch)
tree77c721d08b11aba58a30779e7b3294a96dd7fb29 /drivers/video/Kconfig
parenta42dc9d4804cc5e111952008492dae9d34c6a541 (diff)
fbdev: add drawing functions for framebuffers in system RAM
The generic drawing functions (cfbimgblt, cfbcopyarea, cfbfillrect) 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/write and family for these drivers (as used in the cfb* functions) is illegal, especially in other platforms. Create 3 new drawing functions, based almost entirely from the original except that the framebuffer memory is assumed to be in system RAM. These are named as sysimgblt, syscopyarea, and sysfillrect. 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/Kconfig27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index d9aed103344..f0bc5d908e2 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -95,6 +95,33 @@ config FB_CFB_IMAGEBLIT
95 blitting. This is used by drivers that don't provide their own 95 blitting. This is used by drivers that don't provide their own
96 (accelerated) version. 96 (accelerated) version.
97 97
98config FB_SYS_FILLRECT
99 tristate
100 depends on FB
101 default n
102 ---help---
103 Include the sys_fillrect function for generic software rectangle
104 filling. This is used by drivers that don't provide their own
105 (accelerated) version and the framebuffer is in system RAM.
106
107config FB_SYS_COPYAREA
108 tristate
109 depends on FB
110 default n
111 ---help---
112 Include the sys_copyarea function for generic software area copying.
113 This is used by drivers that don't provide their own (accelerated)
114 version and the framebuffer is in system RAM.
115
116config FB_SYS_IMAGEBLIT
117 tristate
118 depends on FB
119 default n
120 ---help---
121 Include the sys_imageblit function for generic software image
122 blitting. This is used by drivers that don't provide their own
123 (accelerated) version and the framebuffer is in system RAM.
124
98config FB_DEFERRED_IO 125config FB_DEFERRED_IO
99 bool 126 bool
100 depends on FB 127 depends on FB