Update of /cvsroot/linux-vax/kernel-2.4/include/asm-vax/mm
In directory usw-pr-cvs1:/tmp/cvs-serv23832/mm
Modified Files:
task.h
Log Message:
Change task.h to more sane defaults for WSMAX and so forth
Index: task.h
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/include/asm-vax/mm/task.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- task.h 2001/07/31 17:33:26 1.1
+++ task.h 2001/08/21 20:12:42 1.2
@@ -15,17 +15,22 @@
/* TASK_WSMAX is the max virtual address space in P0 */
/* TASK_WSMAX must not be larger than 768MB. In the unlikely event that
* you really want to allocate that much to a process, change PGD_SPECIAL below */
-#define TASK_WSMAX (40*1024*1024)
+/* TASK_TXTMAX is the maximum program size, including shared libs */
+#define TASK_TXTMAX (16*1024*1024)
+
+/* TASK_MMAPMAX is the max space in P0 for the mmap() function ,
+ contiguous with TASK_TXTMAX - Its basically the amount of memory you
+ give a process to play with */
+#define TASK_MMAPMAX (32*1024*1024)
+
/* TASK_STKMAX is the max space for the stack in P1 */
/* Like WSMAX above, the upper limit for this is set by PGD_SPECIAL below. If this
* is above 256MB change PGD_SPECIAL
*/
#define TASK_STKMAX (8*1024*1024)
-/* TASK_MMAPMAX is the max space in P0 for the mmap() function ,
- contiguous with TASK_WSMAX */
-#define TASK_MMAPMAX (8*1024*1024)
+#define TASK_WSMAX (TASK_TXTMAX+TASK_MMAPMAX)
/* TASK_MAXUPRC is the maximum number of user processes on the system
* Think of this like balsetcnt on VMS.
@@ -38,11 +43,11 @@
* space during mmap's.
*/
-#define TASK_UNMAPPED_BASE TASK_WSMAX
+#define TASK_UNMAPPED_BASE TASK_TXTMAX
/* calculations based on the above for the SPT */
/* NPTE_TASK = the number of HWPTE's needed to map a process */
-#define N_HWPTE_TASK_P0 ((TASK_WSMAX+TASK_MMAPMAX)>>PAGELET_SHIFT)
+#define N_HWPTE_TASK_P0 ((TASK_WSMAX)>>PAGELET_SHIFT)
#define N_HWPTE_TASK_P1 ((TASK_STKMAX)>>PAGELET_SHIFT)
/* There are 4 4096 byte pages in the pmd. = 4x1024 hwptes. */
#define N_HWPTE_TASK_PMD ((4*1024))
@@ -60,7 +65,8 @@
/* The offsets into page table area from the start of this slot, in bytes */
#define P0PTE_OFFSET (N_HWPTE_TASK_PMD<<2)
-#define P1PTE_OFFSET ((N_HWPTE_TASK_P0+N_HWPTE_TASK_PMD)<<2)
+/* this is the end of the slot, as p1 counts backwards */
+#define P1PTE_OFFSET ((N_HWPTE_TASK_P0+N_HWPTE_TASK_P1+N_HWPTE_TASK_PMD)<<2)
#define P0PMD_OFFSET (0)
#define P1PMD_OFFSET (PAGE_SIZE*2)
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