lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

powerpc: Merge time.c and asm/time.h.

Browse Source 
We now use the merged time.c for both 32-bit and 64-bit compilation
with ARCH=powerpc, and for ARCH=ppc64, but not for ARCH=ppc32.
This removes setup_default_decr (folds its function into time_init)
and moves wakeup_decrementer into time.c.  This also makes an
asm-powerpc/rtc.h.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras
2005-10-20 09:23:26 +10:00
parent 03f88e9f71
commit f2783c1500
17 changed files with 659 additions and 387 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
arch/powerpc/kernel/misc_32.S
View File

@@ -35,6 +35,33 @@ _GLOBAL(__delay)
1: bdnz 1b
blr
/*
* This returns the high 64 bits of the product of two 64-bit numbers.
*/
_GLOBAL(mulhdu)
cmpwi r6,0
cmpwi cr1,r3,0
mr r10,r4
mulhwu r4,r4,r5
beq 1f
mulhwu r0,r10,r6
mullw r7,r10,r5
addc r7,r0,r7
addze r4,r4
1: beqlr cr1 /* all done if high part of A is 0 */
mr r10,r3
mullw r9,r3,r5
mulhwu r3,r3,r5
beq 2f
mullw r0,r10,r6
mulhwu r8,r10,r6
addc r7,r0,r7
adde r4,r4,r8
addze r3,r3
2: addc r4,r4,r9
addze r3,r3
blr
/*
* Returns (address we're running at) - (address we were linked at)
* for use before the text and data are mapped to KERNELBASE.