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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 21:32:01 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 21:32:01 +0400
commit9daeaa370526df1c19eba4780247bb7155541e38 (patch)
tree5ae2601c26e280e81d753c1fe65453a3b8b1d2a0 /arch/sparc/kernel/wuf.S
parentcb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (diff)
parent1edc17832d8f49a0263d364c453ea35da0e4e2a6 (diff)
downloadlinux-9daeaa370526df1c19eba4780247bb7155541e38.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller: 1) Kill off support for sun4c and Cypress sun4m chips. And as a result we were able to also kill off that ugly btfixup thing that required multi-stage links of the final vmlinux image in the Kbuild system. This should make the kbuild maintainers really happy. Thanks a lot to Sam Ravnborg for his tireless efforts to get this going. 2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot cleaner, it should be able to fall in line and modernize in this area too. 3) Make sparc32 use generic clockevents, from Tkhai Kirill. [ I fixed up the BPF rules, and tried to clean up the build rules too. But I don't have - or want - a sparc cross-build environment, so the BPF rule bug and the related build cleanup was all done with just a bare "make -n" pseudo-test. - Linus ] * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits) sparc32: use flushi when run-time patching in per_cpu_patch sparc32: fix cpuid_patch run-time patching sparc32: drop unused inline functions in srmmu.c sparc32: drop unused functions in pgtsrmmu.h sparc32,leon: move leon mmu functions to leon_mm.c sparc32,leon: remove duplicate definitions in leon.h sparc32,leon: remove duplicate UART register definitions sparc32,leon: move leon ASI definitions to asi.h sparc32: move trap table to a separate file sparc64: renamed ttable.S to ttable_64.S sparc32: Remove asm/sysen.h header. sparc32: Delete asm/smpprim.h sparc32: Remove unused empty_bad_page{,_table} declarations. sparc32: Kill boot_cpu_id4 sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h sparc32: Remove completely unused code from asm/cache.h sparc32: Add ucmpdi2.o to obj-y instead of lib-y. sparc32: add ucmpdi2 sparc: introduce arch/sparc/Kbuild sparc: remove obsolete documentation ...
Diffstat (limited to 'arch/sparc/kernel/wuf.S')
-rw-r--r--arch/sparc/kernel/wuf.S60
1 files changed, 3 insertions, 57 deletions
diff --git a/arch/sparc/kernel/wuf.S b/arch/sparc/kernel/wuf.S
index 779ff750603d..9fde91a249e0 100644
--- a/arch/sparc/kernel/wuf.S
+++ b/arch/sparc/kernel/wuf.S
@@ -131,12 +131,9 @@ fwin_from_user:
/* LOCATION: Window 'W' */
- /* Branch to the architecture specific stack validation
- * routine. They can be found below...
- */
- .globl fwin_mmu_patchme
-fwin_mmu_patchme: b sun4c_fwin_stackchk
- andcc %sp, 0x7, %g0
+ /* Branch to the stack validation routine */
+ b srmmu_fwin_stackchk
+ andcc %sp, 0x7, %g0
#define STACK_OFFSET (THREAD_SIZE - TRACEREG_SZ - STACKFRAME_SZ)
@@ -242,57 +239,6 @@ fwin_user_finish_up:
* 'someone elses' window possibly.
*/
- .align 4
-sun4c_fwin_stackchk:
- /* LOCATION: Window 'W' */
-
- /* Caller did 'andcc %sp, 0x7, %g0' */
- be 1f
- and %sp, 0xfff, %l0 ! delay slot
-
- b,a fwin_user_stack_is_bolixed
-
- /* See if we have to check the sanity of one page or two */
-1:
- add %l0, 0x38, %l0
- sra %sp, 29, %l5
- add %l5, 0x1, %l5
- andncc %l5, 0x1, %g0
- be 1f
- andncc %l0, 0xff8, %g0
-
- b,a fwin_user_stack_is_bolixed /* %sp is in vma hole, yuck */
-
-1:
- be sun4c_fwin_onepage /* Only one page to check */
- lda [%sp] ASI_PTE, %l1
-sun4c_fwin_twopages:
- add %sp, 0x38, %l0
- sra %l0, 29, %l5
- add %l5, 0x1, %l5
- andncc %l5, 0x1, %g0
- be 1f
- lda [%l0] ASI_PTE, %l1
-
- b,a fwin_user_stack_is_bolixed /* Second page in vma hole */
-
-1:
- srl %l1, 29, %l1
- andcc %l1, 0x4, %g0
- bne sun4c_fwin_onepage
- lda [%sp] ASI_PTE, %l1
-
- b,a fwin_user_stack_is_bolixed /* Second page has bad perms */
-
-sun4c_fwin_onepage:
- srl %l1, 29, %l1
- andcc %l1, 0x4, %g0
- bne fwin_user_stack_is_ok
- nop
-
- /* A page had bad page permissions, losing... */
- b,a fwin_user_stack_is_bolixed
-
.globl srmmu_fwin_stackchk
srmmu_fwin_stackchk:
/* LOCATION: Window 'W' */