A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

[PATCH] Invert sense of SLB class bit

Browse source 
Currently, we set the class bit in kernel SLB entries, and clear it on
user SLB entries.  On POWER5, ERAT entries created in real mode have
the class bit clear.  So to avoid flushing kernel ERAT entries on each
context switch, this patch inverts our usage of the class bit, setting
it on user SLB entries and clearing it on kernel SLB entries.

Booted on POWER5 and G5.

Signed-off-by: David Gibson <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
David Gibson 2005-09-06 14:59:47 +10:00 • committed by Paul Mackerras
commit 14b3466161
4 changed files with 15 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/asm-ppc64/mmu.h
View file

@ -54,8 +54,10 @@ extern char initial_stab[];
#define SLB_VSID_C ASM_CONST(0x0000000000000080) /* class */
#define SLB_VSID_LS ASM_CONST(0x0000000000000070) /* size of largepage */
#define SLB_VSID_KERNEL (SLB_VSID_KP|SLB_VSID_C)
#define SLB_VSID_USER (SLB_VSID_KP|SLB_VSID_KS)
#define SLB_VSID_KERNEL (SLB_VSID_KP)
#define SLB_VSID_USER (SLB_VSID_KP|SLB_VSID_KS|SLB_VSID_C)
#define SLBIE_C (0x08000000)
/*
* Hash table