xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] powerpc: Only calculate htab_size in one place for kexec

Browse Source 
For kexec we need to know the size of the MMU hash table.

Currently we calculate the size once in the htab code, and then twice more in
the kexec code, once using htab_hash_mask and once using ppc64_pft_size.
On some machines the ppc64_pft_size calculation is broken because
ppc64_pft_size is not set.

So we need to fix the second calculation, but better still we should just
calculate the size once and use it everywhere else.

Tested on Power5 LPAR, Power4 non-LPAR and Power3.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman
2006-02-21 17:22:55 +11:00
committed by Paul Mackerras
parent bd6ef57e08
commit 337a7128db
3 changed files with 6 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/mm/hash_utils_64.c
View File

@@ -88,6 +88,7 @@ static unsigned long _SDR1;
struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
hpte_t *htab_address;
unsigned long htab_size_bytes;
unsigned long htab_hash_mask;
int mmu_linear_psize = MMU_PAGE_4K;
int mmu_virtual_psize = MMU_PAGE_4K;
@@ -399,7 +400,7 @@ void create_section_mapping(unsigned long start, unsigned long end)
void __init htab_initialize(void)
{
unsigned long table, htab_size_bytes;
unsigned long table;
unsigned long pteg_count;
unsigned long mode_rw;
unsigned long base = 0, size = 0;