[patch 27/32] SPARC64: Fix _PAGE_EXEC_4U check in sun4u I-TLB miss handler.
-stable review patch. If anyone has any objections, please let us know. - From: David Miller <[EMAIL PROTECTED]> It was using an immediate _PAGE_EXEC_4U value in an 'and' instruction to perform the test. This doesn't work because the immediate field is signed 13-bit, this the mask being tested against the PTE was 0x1000 sign-extended to 32-bits instead of just plain 0x1000. Signed-off-by: David S. Miller <[EMAIL PROTECTED]> Signed-off-by: Chris Wright <[EMAIL PROTECTED]> --- arch/sparc64/kernel/itlb_miss.S |4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- linux-2.6.20.13.orig/arch/sparc64/kernel/itlb_miss.S +++ linux-2.6.20.13/arch/sparc64/kernel/itlb_miss.S @@ -11,12 +11,12 @@ /* ITLB ** ICACHE line 2: TSB compare and TLB load */ bne,pn %xcc, tsb_miss_itlb ! Miss movFAULT_CODE_ITLB, %g3 - andcc %g5, _PAGE_EXEC_4U, %g0 ! Executable? + sethi %hi(_PAGE_EXEC_4U), %g4 + andcc %g5, %g4, %g0 ! Executable? be,pn %xcc, tsb_do_fault nop! Delay slot, fill me stxa%g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB retry ! Trap done - nop /* ITLB ** ICACHE line 3: */ nop -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[patch 27/32] SPARC64: Fix _PAGE_EXEC_4U check in sun4u I-TLB miss handler.
-stable review patch. If anyone has any objections, please let us know. - From: David Miller [EMAIL PROTECTED] It was using an immediate _PAGE_EXEC_4U value in an 'and' instruction to perform the test. This doesn't work because the immediate field is signed 13-bit, this the mask being tested against the PTE was 0x1000 sign-extended to 32-bits instead of just plain 0x1000. Signed-off-by: David S. Miller [EMAIL PROTECTED] Signed-off-by: Chris Wright [EMAIL PROTECTED] --- arch/sparc64/kernel/itlb_miss.S |4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- linux-2.6.20.13.orig/arch/sparc64/kernel/itlb_miss.S +++ linux-2.6.20.13/arch/sparc64/kernel/itlb_miss.S @@ -11,12 +11,12 @@ /* ITLB ** ICACHE line 2: TSB compare and TLB load */ bne,pn %xcc, tsb_miss_itlb ! Miss movFAULT_CODE_ITLB, %g3 - andcc %g5, _PAGE_EXEC_4U, %g0 ! Executable? + sethi %hi(_PAGE_EXEC_4U), %g4 + andcc %g5, %g4, %g0 ! Executable? be,pn %xcc, tsb_do_fault nop! Delay slot, fill me stxa%g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB retry ! Trap done - nop /* ITLB ** ICACHE line 3: */ nop -- - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
