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iommu/arm-smmu: Enlarge STRTAB_L1_SZ_SHIFT to support larger sidsize 

Because we will choose the minimum value between STRTAB_L1_SZ_SHIFT and
IDR1.SIDSIZE, so enlarge STRTAB_L1_SZ_SHIFT will not impact the platforms
whose IDR1.SIDSIZE is smaller than old STRTAB_L1_SZ_SHIFT value.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Zhen Lei 2015-07-07 04:30:17 +01:00 committed by Will Deacon
parent 5d58c6207c
commit e2f4c2330f
1 changed files with 3 additions and 2 deletions
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5
drivers/iommu/arm-smmu-v3.c
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@ -199,9 +199,10 @@
* Stream table.
*
* Linear: Enough to cover 1 << IDR1.SIDSIZE entries
* 2lvl: 8k L1 entries, 256 lazy entries per table (each table covers a PCI bus)
* 2lvl: 128k L1 entries,
* 256 lazy entries per table (each table covers a PCI bus)
*/
#define STRTAB_L1_SZ_SHIFT 16
#define STRTAB_L1_SZ_SHIFT 20
#define STRTAB_SPLIT 8
#define STRTAB_L1_DESC_DWORDS 1