提交 67929299 编写于 作者: D David S. Miller

[SPARC64]: Fix _PAGE_EXEC_4U check in sun4u I-TLB miss handler.

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: NDavid S. Miller <davem@davemloft.net>
上级 b00ccd0f
......@@ -11,12 +11,12 @@
/* ITLB ** ICACHE line 2: TSB compare and TLB load */
bne,pn %xcc, tsb_miss_itlb ! Miss
mov FAULT_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
......
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