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authorAnton Blanchard <anton@samba.org>2014-03-10 09:44:22 +1100
committerAnton Blanchard <anton@samba.org>2014-04-23 10:05:22 +1000
commitb86206e4c32cbe6ac3de1c6dc52c2d64bcf461cb (patch)
treebbad949975ee4a562d9aed6800e54a035cfb03a3 /arch/powerpc/mm/slb_low.S
parent26f920605680b69e484a114b3dcb47ce11df9827 (diff)
powerpc: Fix branch patching code for ABIv2
The MMU hashtable and SLB branch patching code uses function pointers for the update sites. This creates a difference between ABIv1 and ABIv2 because we don't have function descriptors on ABIv2. Get rid of the function pointer and just point at the update sites directly. This works on both ABIs. Signed-off-by: Anton Blanchard <anton@samba.org>
Diffstat (limited to 'arch/powerpc/mm/slb_low.S')
-rw-r--r--arch/powerpc/mm/slb_low.S12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index 17aa6dfceb34..28cffb68c2e1 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -59,7 +59,8 @@ _GLOBAL(slb_allocate_realmode)
/* Linear mapping encoding bits, the "li" instruction below will
* be patched by the kernel at boot
*/
-_GLOBAL(slb_miss_kernel_load_linear)
+.globl slb_miss_kernel_load_linear
+slb_miss_kernel_load_linear:
li r11,0
/*
* context = (MAX_USER_CONTEXT) + ((ea >> 60) - 0xc) + 1
@@ -79,7 +80,8 @@ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
/* Check virtual memmap region. To be patches at kernel boot */
cmpldi cr0,r9,0xf
bne 1f
-_GLOBAL(slb_miss_kernel_load_vmemmap)
+.globl slb_miss_kernel_load_vmemmap
+slb_miss_kernel_load_vmemmap:
li r11,0
b 6f
1:
@@ -95,7 +97,8 @@ _GLOBAL(slb_miss_kernel_load_vmemmap)
b 6f
5:
/* IO mapping */
- _GLOBAL(slb_miss_kernel_load_io)
+.globl slb_miss_kernel_load_io
+slb_miss_kernel_load_io:
li r11,0
6:
/*
@@ -250,7 +253,8 @@ slb_finish_load:
7: ld r10,PACASTABRR(r13)
addi r10,r10,1
/* This gets soft patched on boot. */
-_GLOBAL(slb_compare_rr_to_size)
+.globl slb_compare_rr_to_size
+slb_compare_rr_to_size:
cmpldi r10,0
blt+ 4f