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| author | Matt Fleming <matt@console-pimps.org> | 2010-04-25 20:18:41 +0100 |
|---|---|---|
| committer | Matt Fleming <matt@console-pimps.org> | 2010-04-25 20:44:23 +0100 |
| commit | 035ca59fe8399a67b56511bd5b28130f0c4874a0 (patch) | |
| tree | c405a38cdb406847ea2fb38e580b9ceba615e39f /arch/sh | |
| parent | c7b03fa0bdc04e00bfbdc4cc69da144b11108f37 (diff) | |
| download | blackbird-op-linux-035ca59fe8399a67b56511bd5b28130f0c4874a0.tar.gz blackbird-op-linux-035ca59fe8399a67b56511bd5b28130f0c4874a0.zip | |
sh: Use correct mask when comparing PMB DATA array values
Previously we were masking the PMB DATA array values with the value of
__MEMORY_START | PMB_V, which misses some PFN bits off the mask.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/kernel/head_32.S | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S index 8c1fc9a9fab2..6e35f012cc03 100644 --- a/arch/sh/kernel/head_32.S +++ b/arch/sh/kernel/head_32.S @@ -131,6 +131,7 @@ ENTRY(_stext) * r8 = scratch register * r9 = scratch register * r10 = number of PMB entries we've setup + * r11 = scratch register */ mov.l .LMMUCR, r1 /* Flush the TLB */ @@ -167,8 +168,9 @@ ENTRY(_stext) .Lvalidate_existing_mappings: + mov.l .LPMB_DATA_MASK, r11 mov.l @r7, r8 - and r0, r8 + and r11, r8 cmp/eq r0, r8 /* Check for valid __MEMORY_START mappings */ bt .Lpmb_done @@ -341,6 +343,7 @@ ENTRY(stack_start) #ifdef CONFIG_PMB .LPMB_ADDR: .long PMB_ADDR .LPMB_DATA: .long PMB_DATA +.LPMB_DATA_MASK: .long PMB_PFN_MASK | PMB_V .LFIRST_ADDR_ENTRY: .long PAGE_OFFSET | PMB_V .LFIRST_DATA_ENTRY: .long __MEMORY_START | PMB_V .LMMUCR: .long MMUCR |
