linux/drivers/video/offb.c, branch v3.4.33

offb: Fix setting of the pseudo-palette for >8bpp

2012-01-03T01:09:25Z

When using a >8bpp framebuffer, offb advertises truecolor, not directcolor, and doesn't touch the color map even if it has a corresponding access method for the real hardware. Thus it needs to set the pseudo-palette with all 3 components of the color, like other truecolor framebuffers, not with copies of the color index like a directcolor framebuffer would do. This went unnoticed for a long time because it's pretty hard to get offb to kick in with anything but 8bpp (old BootX under MacOS will do that and qemu does it). Signed-off-by: Benjamin Herrenschmidt CC: stable@kernel.org

offb: Add palette hack for qemu "standard vga" framebuffer

2012-01-03T01:09:23Z

We rename the mach64 hack to "simple" since that's also applicable to anything using VGA-style DAC IO ports (set to 8-bit DAC) and we use it for qemu vga. Note that this is keyed on a device-tree "compatible" property that is currently only set by an upcoming version of SLOF when using the qemu "pseries" platform. This is on purpose as other qemu ppc platforms using OpenBIOS aren't properly setting the DAC to 8-bit at the time of the writing of this patch. We can fix OpenBIOS later to do that and add the required property, in which case it will be matched by this change. Signed-off-by: Benjamin Herrenschmidt

offb: Fix bug in calculating requested vram size

2012-01-03T01:09:15Z

We used to try to request 8 times more vram than needed, which would fail if the card has a too small BAR (observed with qemu & kvm). Signed-off-by: Benjamin Herrenschmidt CC: stable@kernel.org

of/address: Clean up function declarations

2010-08-01T07:42:42Z

This patch moves the declaration of of_get_address(), of_get_pci_address(), and of_pci_address_to_resource() out of arch code and into the common linux/of_address header file. This patch also fixes some of the asm/prom.h ordering issues. It still includes some header files that it ideally shouldn't be, but at least the ordering is consistent now so that of_* overrides work. Signed-off-by: Grant Likely

fbdev: allow passing more than one aperture for handoff

2010-05-18T06:19:27Z

It removes a hack from nouveau code which had to detect which region to pass to kick vesafb/efifb. Signed-off-by: Marcin Slusarz Cc: Eric Anholt Cc: Ben Skeggs Cc: Thomas Hellstrom Cc: Dave Airlie Cc: Peter Jones Cc: Benjamin Herrenschmidt Signed-off-by: Dave Airlie

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

offb: Add support for framebuffer handoff to offb.

2009-12-09T06:09:29Z

This allows offb to be used for initial framebuffer, and a kms driver to take over later in the boot sequence. Signed-off-by: Dave Airlie Signed-off-by: Benjamin Herrenschmidt

fbdev: use framebuffer_release() for freeing fb_info structures

2009-06-17T02:48:00Z

Use the framebuffer_release() for freeing fb_info structures allocated with framebuffer_alloc(). Signed-off-by: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

offb: use framebuffer_alloc() to allocate fb_info struct

2009-06-17T02:47:58Z

Use the framebuffer_alloc() function to allocate the fb_info structure so the structure is correctly initialized after allocation. Signed-off-by: Krzysztof Helt Cc: Geert Uytterhoeven Acked-by: Benjamin Herrenschmidt Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fbdev: Teaches offb about palette on radeon r5xx/r6xx

2008-07-22T00:39:36Z

The offb driver already has a collection of hacks to be able to set the palette on various chips. This adds support for r5xx/r6xx radeons. This is needed as offb is the only console solution on these currently and the firmware in some cases sets a really bad color palette. This fixes using some Radeon X16xx on the Powerstation for example. Signed-off-by: Benjamin Herrenschmidt