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Fix page table size calculation

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2901 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-08-31 04:05:28 +00:00
parent c739018316
commit 79f166dabf
2 changed files with 18 additions and 6 deletions
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10
arch/arm/src/dm320/dm320_memorymap.h
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@ -207,11 +207,15 @@
#define PGTABLE_L2_FINE_VBASE (PGTABLE_BASE_VADDR+0x00001000)
#define PGTABLE_L2_END_VADDR (PGTABLE_BASE_VADDR+PGTABLE_SIZE)
#define PGTABLE_L2_ALLOC (PGTABLE_L2_END_VADDR-PGTABLE_L2_BASE_VADDR)
/* Page table sizes */
#define PGTABLE_L2_COARSE_ALLOC (PGTABLE_L2_END_VADDR-PGTABLE_L2_COARSE_VBASE)
#define PGTABLE_COARSE_TABLE_SIZE (4*256)
#define PGTABLE_NCOARSE_TABLES (PGTABLE_L2_ALLOC / PGTABLE_COARSE_TABLE_SIZE)
#define PGTABLE_NCOARSE_TABLES (PGTABLE_L2_COARSE_ALLOC / PGTABLE_COARSE_TABLE_SIZE)
#define PGTABLE_L2_FINE_ALLOC (PGTABLE_L2_END_VADDR-PGTABLE_L2_FINE_VBASE)
#define PGTABLE_FINE_TABLE_SIZE (4*1024)
#define PGTABLE_NFINE_TABLES (PGTABLE_L2_ALLOC / PGTABLE_FINE_TABLE_SIZE)
#define PGTABLE_NFINE_TABLES (PGTABLE_L2_FINE_ALLOC / PGTABLE_FINE_TABLE_SIZE)
/* This is the base address of the interrupt vectors on the ARM926 */

14
arch/arm/src/lpc313x/lpc313x_memorymap.h
View File

@ -319,6 +319,8 @@
/* 16Kb of memory is reserved hold the page table for the virtual mappings. A
* portion of this table is not accessible in the virtual address space (for
* normal operation). We will reuse this memory for coarse page tables as follows:
*
* Page table start addresses:
*/
#define PGTABLE_L2_COARSE_OFFSET ((((LPC313X_LAST_PSECTION >> 20) + 255) & ~255) << 2)
@ -329,14 +331,20 @@
#define PGTABLE_L2_FINE_PBASE (PGTABLE_BASE_PADDR+PGTABLE_L2_FINE_OFFSET)
#define PGTABLE_L2_FINE_VBASE (PGTABLE_BASE_VADDR+PGTABLE_L2_FINE_OFFSET)
/* Page table end addresses: */
#define PGTABLE_L2_END_PADDR (PGTABLE_BASE_PADDR+PGTABLE_SIZE)
#define PGTABLE_L2_END_VADDR (PGTABLE_BASE_VADDR+PGTABLE_SIZE)
#define PGTABLE_L2_ALLOC (PGTABLE_L2_END_VADDR-PGTABLE_L2_BASE_VADDR)
/* Page table sizes */
#define PGTABLE_L2_COARSE_ALLOC (PGTABLE_L2_END_VADDR-PGTABLE_L2_COARSE_VBASE)
#define PGTABLE_COARSE_TABLE_SIZE (4*256)
#define PGTABLE_NCOARSE_TABLES (PGTABLE_L2_ALLOC / PGTABLE_COARSE_TABLE_SIZE)
#define PGTABLE_NCOARSE_TABLES (PGTABLE_L2_COARSE_ALLOC / PGTABLE_COARSE_TABLE_SIZE)
#define PGTABLE_L2_FINE_ALLOC (PGTABLE_L2_END_VADDR-PGTABLE_L2_FINE_VBASE)
#define PGTABLE_FINE_TABLE_SIZE (4*1024)
#define PGTABLE_NFINE_TABLES (PGTABLE_L2_ALLOC / PGTABLE_FINE_TABLE_SIZE)
#define PGTABLE_NFINE_TABLES (PGTABLE_L2_FINE_ALLOC / PGTABLE_FINE_TABLE_SIZE)
/* Determine the base address of the vector table:
*