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sparc32: mm: Reduce allocation size for PMD and PTE tables

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Now that the page table allocator can free page table allocations
smaller than PAGE_SIZE, reduce the size of the PMD and PTE allocations
to avoid needlessly wasting memory.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Will Deacon 2020-04-14 22:40:11 +01:00 committed by David S. Miller
parent 3f407976ac
commit 8c8f3156dd
1 changed files with 2 additions and 2 deletions
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4
arch/sparc/include/asm/pgtsrmmu.h
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@ -17,8 +17,8 @@
/* Number of contexts is implementation-dependent; 64k is the most we support */
#define SRMMU_MAX_CONTEXTS 65536
#define SRMMU_PTE_TABLE_SIZE (PAGE_SIZE)
#define SRMMU_PMD_TABLE_SIZE (PAGE_SIZE)
#define SRMMU_PTE_TABLE_SIZE (PTRS_PER_PTE*4)
#define SRMMU_PMD_TABLE_SIZE (PTRS_PER_PMD*4)
#define SRMMU_PGD_TABLE_SIZE (PTRS_PER_PGD*4)
/* Definition of the values in the ET field of PTD's and PTE's */