Parameterize the number of pages to allocate for the per-cpu area on

PCPU_PAGES.

5 files changed, 7 insertions, 5 deletions

diff --git a/sys/sparc64/include/param.h b/sys/sparc64/include/param.h
index 72cf69c..a4404cf 100644
--- a/sys/sparc64/include/param.h
+++ b/sys/sparc64/include/param.h
@@ -126,6 +126,7 @@
 
 #define KSTACK_PAGES		4	/* pages of kernel stack (with pcb) */
 #define UAREA_PAGES		1	/* pages of user area */
+#define PCPU_PAGES		1
 
 #define KSTACK_GUARD 		/* compile in kstack guard page */
 #define KSTACK_GUARD_PAGES	1
diff --git a/sys/sparc64/sparc64/genassym.c b/sys/sparc64/sparc64/genassym.c
index 22fa7f7..725baae 100644
--- a/sys/sparc64/sparc64/genassym.c
+++ b/sys/sparc64/sparc64/genassym.c
@@ -72,6 +72,7 @@ ASSYM(ENAMETOOLONG, ENAMETOOLONG);
 
 ASSYM(KSTACK_PAGES, KSTACK_PAGES);
 ASSYM(KSTACK_GUARD_PAGES, KSTACK_GUARD_PAGES);
+ASSYM(PCPU_PAGES, PCPU_PAGES);
 ASSYM(UAREA_PAGES, UAREA_PAGES);
 ASSYM(PAGE_SIZE, PAGE_SIZE);
 
diff --git a/sys/sparc64/sparc64/locore.S b/sys/sparc64/sparc64/locore.S
index 5d7e5d3..886b1b2 100644
--- a/sys/sparc64/sparc64/locore.S
+++ b/sys/sparc64/sparc64/locore.S
@@ -77,7 +77,7 @@ ENTRY(_start)
 	 * Get onto our per-cpu panic stack, which precedes the struct pcpu in
 	 * the per-cpu page.
 	 */
-	SET(pcpu0 + PAGE_SIZE - PC_SIZEOF, %l1, %l0)
+	SET(pcpu0 + (PCPU_PAGES * PAGE_SIZE) - PC_SIZEOF, %l1, %l0)
 	sub	%l0, SPOFF + CCFSZ, %sp
 
 	/*
diff --git a/sys/sparc64/sparc64/locore.s b/sys/sparc64/sparc64/locore.s
index 5d7e5d3..886b1b2 100644
--- a/sys/sparc64/sparc64/locore.s
+++ b/sys/sparc64/sparc64/locore.s
@@ -77,7 +77,7 @@ ENTRY(_start)
 	 * Get onto our per-cpu panic stack, which precedes the struct pcpu in
 	 * the per-cpu page.
 	 */
-	SET(pcpu0 + PAGE_SIZE - PC_SIZEOF, %l1, %l0)
+	SET(pcpu0 + (PCPU_PAGES * PAGE_SIZE) - PC_SIZEOF, %l1, %l0)
 	sub	%l0, SPOFF + CCFSZ, %sp
 
 	/*
diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c
index 58ff07a..0517ede 100644
--- a/sys/sparc64/sparc64/machdep.c
+++ b/sys/sparc64/sparc64/machdep.c
@@ -115,7 +115,7 @@ int Maxmem;
 struct mtx Giant;
 struct mtx sched_lock;
 
-char pcpu0[PAGE_SIZE];
+char pcpu0[PCPU_PAGES * PAGE_SIZE];
 char uarea0[UAREA_PAGES * PAGE_SIZE];
 struct trapframe frame0;
 
@@ -140,7 +140,7 @@ SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL);
 CTASSERT((1 << INT_SHIFT) == sizeof(int));
 CTASSERT((1 << PTR_SHIFT) == sizeof(char *));
 
-CTASSERT(sizeof(struct pcpu) <= (PAGE_SIZE / 2));
+CTASSERT(sizeof(struct pcpu) <= ((PCPU_PAGES * PAGE_SIZE) / 2));
 
 static void
 cpu_startup(void *arg)
@@ -291,7 +291,7 @@ sparc64_init(caddr_t mdp, u_int *state, u_int mid, u_int bootmid,
 	 * stack, so don't pass the real size (PAGE_SIZE) to pcpu_init or
 	 * it'll zero it out from under us.
 	 */
-	pc = (struct pcpu *)(pcpu0 + PAGE_SIZE) - 1;
+	pc = (struct pcpu *)(pcpu0 + (PCPU_PAGES * PAGE_SIZE)) - 1;
 	pcpu_init(pc, 0, sizeof(struct pcpu));
 	pc->pc_curthread = &thread0;
 	pc->pc_curpcb = thread0.td_pcb;