| Message ID | 1397777391-4220-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/video/aty/mach64_accel.c b/drivers/video/aty/mach64_accel.c index e45833c..182bd68 100644 --- a/drivers/video/aty/mach64_accel.c +++ b/drivers/video/aty/mach64_accel.c @@ -4,6 +4,7 @@ */ #include <linux/delay.h> +#include <asm/unaligned.h> #include <linux/fb.h> #include <video/mach64.h> #include "atyfb.h" @@ -419,7 +420,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) u32 *pbitmap, dwords = (src_bytes + 3) / 4; for (pbitmap = (u32*)(image->data); dwords; dwords--, pbitmap++) { wait_for_fifo(1, par); - aty_st_le32(HOST_DATA0, le32_to_cpup(pbitmap), par); + aty_st_le32(HOST_DATA0, get_unaligned_le32(pbitmap), par); } }
This is a note to let you know that I have just added a patch titled mach64: use unaligned access to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue This patch is scheduled to be released in version 3.8.13.22. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.8.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From a66688e2a1381ff87e84052f2c6cced4ae543b38 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka <mpatocka@redhat.com> Date: Thu, 23 Jan 2014 14:41:09 -0500 Subject: mach64: use unaligned access commit c29dd8696dc5dbd50b3ac441b8a26751277ba520 upstream. This patch fixes mach64 to use unaligned access to the font bitmap. This fixes unaligned access warning on sparc64 when 14x8 font is loaded. On x86(64), unaligned access is handled in hardware, so both functions le32_to_cpup and get_unaligned_le32 perform the same operation. On RISC machines, unaligned access is not handled in hardware, so we better use get_unaligned_le32 to avoid the unaligned trap and warning. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/video/aty/mach64_accel.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 1.9.1