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arch/tile: support newer binutils assembler shift semantics

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This change supports building the kernel with newer binutils where
a shift of greater than the word size is no longer interpreted
silently as modulo the word size, but instead generates a warning.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Chris Metcalf
2011-03-17 14:32:06 -04:00
parent 325d160554
commit 0dccb0489f
3 changed files with 29 additions and 9 deletions
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11
arch/tile/kernel/head_32.S
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@@ -145,7 +145,7 @@ ENTRY(empty_zero_page)
.endif
.word HV_PTE_PAGE | HV_PTE_DIRTY | HV_PTE_PRESENT | HV_PTE_ACCESSED | \
(HV_PTE_MODE_CACHE_NO_L3 << HV_PTE_INDEX_MODE)
.word (\bits1) | (HV_CPA_TO_PFN(\cpa) << HV_PTE_INDEX_PFN)
.word (\bits1) | (HV_CPA_TO_PFN(\cpa) << (HV_PTE_INDEX_PFN - 32))
.endm
__PAGE_ALIGNED_DATA
@@ -158,12 +158,14 @@ ENTRY(swapper_pg_dir)
*/
.set addr, 0
.rept (MEM_USER_INTRPT - PAGE_OFFSET) >> PGDIR_SHIFT
PTE addr + PAGE_OFFSET, addr, HV_PTE_READABLE | HV_PTE_WRITABLE
PTE addr + PAGE_OFFSET, addr, (1 << (HV_PTE_INDEX_READABLE - 32)) | \
(1 << (HV_PTE_INDEX_WRITABLE - 32))
.set addr, addr + PGDIR_SIZE
.endr
/* The true text VAs are mapped as VA = PA + MEM_SV_INTRPT */
PTE MEM_SV_INTRPT, 0, HV_PTE_READABLE | HV_PTE_EXECUTABLE
PTE MEM_SV_INTRPT, 0, (1 << (HV_PTE_INDEX_READABLE - 32)) | \
(1 << (HV_PTE_INDEX_EXECUTABLE - 32))
.org swapper_pg_dir + HV_L1_SIZE
END(swapper_pg_dir)
@@ -176,6 +178,7 @@ ENTRY(swapper_pg_dir)
__INITDATA
.align CHIP_L2_LINE_SIZE()
ENTRY(swapper_pgprot)
PTE 0, 0, HV_PTE_READABLE | HV_PTE_WRITABLE, 1
PTE 0, 0, (1 << (HV_PTE_INDEX_READABLE - 32)) | \
(1 << (HV_PTE_INDEX_WRITABLE - 32)), 1
.align CHIP_L2_LINE_SIZE()
END(swapper_pgprot)