summaryrefslogtreecommitdiff
path: root/arch/arm/lib
diff options
context:
space:
mode:
authorDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-07-19 17:49:39 -0400
committerDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-07-19 17:49:39 -0400
commit39299d9d15c41cbdd7c7009967cd35afaf34d8fa (patch)
tree42a0c0408fcf76024eb6885a27d4f1ed0228abcf /arch/arm/lib
parentce625a801664d8ed7344117bbb57510e4e0e872c (diff)
parentf60f700876cd51de9de69f3a3c865d95e287a24d (diff)
downloadlinux-next-39299d9d15c41cbdd7c7009967cd35afaf34d8fa.tar.gz
Merge with /shiny/git/linux-2.6/.git
Diffstat (limited to 'arch/arm/lib')
-rw-r--r--arch/arm/lib/bitops.h31
-rw-r--r--arch/arm/lib/io-shark.c70
2 files changed, 31 insertions, 70 deletions
diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index 4a83ab6cd565..6976e60e47cb 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -1,3 +1,33 @@
+#if __LINUX_ARM_ARCH__ >= 6
+ .macro bitop, instr
+ mov r2, #1
+ and r3, r0, #7 @ Get bit offset
+ add r1, r1, r0, lsr #3 @ Get byte offset
+ mov r3, r2, lsl r3
+1: ldrexb r2, [r1]
+ \instr r2, r2, r3
+ strexb r0, r2, [r1]
+ cmpne r0, #0
+ bne 1b
+ mov pc, lr
+ .endm
+
+ .macro testop, instr, store
+ and r3, r0, #7 @ Get bit offset
+ mov r2, #1
+ add r1, r1, r0, lsr #3 @ Get byte offset
+ mov r3, r2, lsl r3 @ create mask
+1: ldrexb r2, [r1]
+ ands r0, r2, r3 @ save old value of bit
+ \instr ip, r2, r3 @ toggle bit
+ strexb r2, ip, [r1]
+ cmp r2, #0
+ bne 1b
+ cmp r0, #0
+ movne r0, #1
+2: mov pc, lr
+ .endm
+#else
.macro bitop, instr
and r2, r0, #7
mov r3, #1
@@ -31,3 +61,4 @@
moveq r0, #0
mov pc, lr
.endm
+#endif
diff --git a/arch/arm/lib/io-shark.c b/arch/arm/lib/io-shark.c
index 108d4573e970..824253948f51 100644
--- a/arch/arm/lib/io-shark.c
+++ b/arch/arm/lib/io-shark.c
@@ -11,73 +11,3 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/kernel.h>
-
-#include <asm/io.h>
-
-void print_warning(void)
-{
- printk(KERN_WARNING "ins?/outs? not implemented on this architecture\n");
-}
-
-void insl(unsigned int port, void *to, int len)
-{
- print_warning();
-}
-
-void insb(unsigned int port, void *to, int len)
-{
- print_warning();
-}
-
-void outsl(unsigned int port, const void *from, int len)
-{
- print_warning();
-}
-
-void outsb(unsigned int port, const void *from, int len)
-{
- print_warning();
-}
-
-/* these should be in assembler again */
-
-/*
- * Purpose: read a block of data from a hardware register to memory.
- * Proto : insw(int from_port, void *to, int len_in_words);
- * Proto : inswb(int from_port, void *to, int len_in_bytes);
- * Notes : increment to
- */
-
-void insw(unsigned int port, void *to, int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- ((unsigned short *) to)[i] = inw(port);
-}
-
-void inswb(unsigned int port, void *to, int len)
-{
- insw(port, to, len >> 2);
-}
-
-/*
- * Purpose: write a block of data from memory to a hardware register.
- * Proto : outsw(int to_reg, void *from, int len_in_words);
- * Proto : outswb(int to_reg, void *from, int len_in_bytes);
- * Notes : increments from
- */
-
-void outsw(unsigned int port, const void *from, int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- outw(((unsigned short *) from)[i], port);
-}
-
-void outswb(unsigned int port, const void *from, int len)
-{
- outsw(port, from, len >> 2);
-}