Merge branch 'linus'

6 files changed, 61 insertions, 280 deletions

diff --git a/arch/sparc64/prom/cif.S b/arch/sparc64/prom/cif.S
index 29d0ae74aed..5f27ad779c0 100644
--- a/arch/sparc64/prom/cif.S
+++ b/arch/sparc64/prom/cif.S
@@ -1,10 +1,12 @@
 /* cif.S: PROM entry/exit assembler trampolines.
  *
- * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- * Copyright (C) 2005 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 1996, 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 2005, 2006 David S. Miller <davem@davemloft.net>
  */
 
 #include <asm/pstate.h>
+#include <asm/cpudata.h>
+#include <asm/thread_info.h>
 
 	.text
 	.globl	prom_cif_interface
@@ -12,78 +14,16 @@ prom_cif_interface:
 	sethi	%hi(p1275buf), %o0
 	or	%o0, %lo(p1275buf), %o0
 	ldx	[%o0 + 0x010], %o1	! prom_cif_stack
-	save	%o1, -0x190, %sp
+	save	%o1, -192, %sp
 	ldx	[%i0 + 0x008], %l2	! prom_cif_handler
-	rdpr	%pstate, %l4
-	wrpr	%g0, 0x15, %pstate	! save alternate globals
-	stx	%g1, [%sp + 2047 + 0x0b0]
-	stx	%g2, [%sp + 2047 + 0x0b8]
-	stx	%g3, [%sp + 2047 + 0x0c0]
-	stx	%g4, [%sp + 2047 + 0x0c8]
-	stx	%g5, [%sp + 2047 + 0x0d0]
-	stx	%g6, [%sp + 2047 + 0x0d8]
-	stx	%g7, [%sp + 2047 + 0x0e0]
-	wrpr	%g0, 0x814, %pstate	! save interrupt globals
-	stx	%g1, [%sp + 2047 + 0x0e8]
-	stx	%g2, [%sp + 2047 + 0x0f0]
-	stx	%g3, [%sp + 2047 + 0x0f8]
-	stx	%g4, [%sp + 2047 + 0x100]
-	stx	%g5, [%sp + 2047 + 0x108]
-	stx	%g6, [%sp + 2047 + 0x110]
-	stx	%g7, [%sp + 2047 + 0x118]
-	wrpr	%g0, 0x14, %pstate	! save normal globals
-	stx	%g1, [%sp + 2047 + 0x120]
-	stx	%g2, [%sp + 2047 + 0x128]
-	stx	%g3, [%sp + 2047 + 0x130]
-	stx	%g4, [%sp + 2047 + 0x138]
-	stx	%g5, [%sp + 2047 + 0x140]
-	stx	%g6, [%sp + 2047 + 0x148]
-	stx	%g7, [%sp + 2047 + 0x150]
-	wrpr	%g0, 0x414, %pstate	! save mmu globals
-	stx	%g1, [%sp + 2047 + 0x158]
-	stx	%g2, [%sp + 2047 + 0x160]
-	stx	%g3, [%sp + 2047 + 0x168]
-	stx	%g4, [%sp + 2047 + 0x170]
-	stx	%g5, [%sp + 2047 + 0x178]
-	stx	%g6, [%sp + 2047 + 0x180]
-	stx	%g7, [%sp + 2047 + 0x188]
-	mov	%g1, %l0		! also save to locals, so we can handle
-	mov	%g2, %l1		! tlb faults later on, when accessing
-	mov	%g3, %l3		! the stack.
-	mov	%g7, %l5
-	wrpr	%l4, PSTATE_IE, %pstate	! turn off interrupts
+	mov	%g4, %l0
+	mov	%g5, %l1
+	mov	%g6, %l3
 	call	%l2
 	 add	%i0, 0x018, %o0		! prom_args
-	wrpr	%g0, 0x414, %pstate	! restore mmu globals
-	mov	%l0, %g1
-	mov	%l1, %g2
-	mov	%l3, %g3
-	mov	%l5, %g7
-	wrpr	%g0, 0x14, %pstate	! restore normal globals
-	ldx	[%sp + 2047 + 0x120], %g1
-	ldx	[%sp + 2047 + 0x128], %g2
-	ldx	[%sp + 2047 + 0x130], %g3
-	ldx	[%sp + 2047 + 0x138], %g4
-	ldx	[%sp + 2047 + 0x140], %g5
-	ldx	[%sp + 2047 + 0x148], %g6
-	ldx	[%sp + 2047 + 0x150], %g7
-	wrpr	%g0, 0x814, %pstate	! restore interrupt globals
-	ldx	[%sp + 2047 + 0x0e8], %g1
-	ldx	[%sp + 2047 + 0x0f0], %g2
-	ldx	[%sp + 2047 + 0x0f8], %g3
-	ldx	[%sp + 2047 + 0x100], %g4
-	ldx	[%sp + 2047 + 0x108], %g5
-	ldx	[%sp + 2047 + 0x110], %g6
-	ldx	[%sp + 2047 + 0x118], %g7
-	wrpr	%g0, 0x15, %pstate	! restore alternate globals
-	ldx	[%sp + 2047 + 0x0b0], %g1
-	ldx	[%sp + 2047 + 0x0b8], %g2
-	ldx	[%sp + 2047 + 0x0c0], %g3
-	ldx	[%sp + 2047 + 0x0c8], %g4
-	ldx	[%sp + 2047 + 0x0d0], %g5
-	ldx	[%sp + 2047 + 0x0d8], %g6
-	ldx	[%sp + 2047 + 0x0e0], %g7
-	wrpr	%l4, 0, %pstate	! restore original pstate
+	mov	%l0, %g4
+	mov	%l1, %g5
+	mov	%l3, %g6
 	ret
 	 restore
 
@@ -91,135 +31,18 @@ prom_cif_interface:
 prom_cif_callback:
 	sethi	%hi(p1275buf), %o1
 	or	%o1, %lo(p1275buf), %o1
-	save	%sp, -0x270, %sp
-	rdpr	%pstate, %l4
-	wrpr	%g0, 0x15, %pstate	! save PROM alternate globals
-	stx	%g1, [%sp + 2047 + 0x0b0]
-	stx	%g2, [%sp + 2047 + 0x0b8]
-	stx	%g3, [%sp + 2047 + 0x0c0]
-	stx	%g4, [%sp + 2047 + 0x0c8]
-	stx	%g5, [%sp + 2047 + 0x0d0]
-	stx	%g6, [%sp + 2047 + 0x0d8]
-	stx	%g7, [%sp + 2047 + 0x0e0]
-					! restore Linux alternate globals
-	ldx	[%sp + 2047 + 0x190], %g1
-	ldx	[%sp + 2047 + 0x198], %g2
-	ldx	[%sp + 2047 + 0x1a0], %g3
-	ldx	[%sp + 2047 + 0x1a8], %g4
-	ldx	[%sp + 2047 + 0x1b0], %g5
-	ldx	[%sp + 2047 + 0x1b8], %g6
-	ldx	[%sp + 2047 + 0x1c0], %g7
-	wrpr	%g0, 0x814, %pstate	! save PROM interrupt globals
-	stx	%g1, [%sp + 2047 + 0x0e8]
-	stx	%g2, [%sp + 2047 + 0x0f0]
-	stx	%g3, [%sp + 2047 + 0x0f8]
-	stx	%g4, [%sp + 2047 + 0x100]
-	stx	%g5, [%sp + 2047 + 0x108]
-	stx	%g6, [%sp + 2047 + 0x110]
-	stx	%g7, [%sp + 2047 + 0x118]
-					! restore Linux interrupt globals
-	ldx	[%sp + 2047 + 0x1c8], %g1
-	ldx	[%sp + 2047 + 0x1d0], %g2
-	ldx	[%sp + 2047 + 0x1d8], %g3
-	ldx	[%sp + 2047 + 0x1e0], %g4
-	ldx	[%sp + 2047 + 0x1e8], %g5
-	ldx	[%sp + 2047 + 0x1f0], %g6
-	ldx	[%sp + 2047 + 0x1f8], %g7
-	wrpr	%g0, 0x14, %pstate	! save PROM normal globals
-	stx	%g1, [%sp + 2047 + 0x120]
-	stx	%g2, [%sp + 2047 + 0x128]
-	stx	%g3, [%sp + 2047 + 0x130]
-	stx	%g4, [%sp + 2047 + 0x138]
-	stx	%g5, [%sp + 2047 + 0x140]
-	stx	%g6, [%sp + 2047 + 0x148]
-	stx	%g7, [%sp + 2047 + 0x150]
-					! restore Linux normal globals
-	ldx	[%sp + 2047 + 0x200], %g1
-	ldx	[%sp + 2047 + 0x208], %g2
-	ldx	[%sp + 2047 + 0x210], %g3
-	ldx	[%sp + 2047 + 0x218], %g4
-	ldx	[%sp + 2047 + 0x220], %g5
-	ldx	[%sp + 2047 + 0x228], %g6
-	ldx	[%sp + 2047 + 0x230], %g7
-	wrpr	%g0, 0x414, %pstate	! save PROM mmu globals
-	stx	%g1, [%sp + 2047 + 0x158]
-	stx	%g2, [%sp + 2047 + 0x160]
-	stx	%g3, [%sp + 2047 + 0x168]
-	stx	%g4, [%sp + 2047 + 0x170]
-	stx	%g5, [%sp + 2047 + 0x178]
-	stx	%g6, [%sp + 2047 + 0x180]
-	stx	%g7, [%sp + 2047 + 0x188]
-					! restore Linux mmu globals
-	ldx	[%sp + 2047 + 0x238], %o0
-	ldx	[%sp + 2047 + 0x240], %o1
-	ldx	[%sp + 2047 + 0x248], %l2
-	ldx	[%sp + 2047 + 0x250], %l3
-	ldx	[%sp + 2047 + 0x258], %l5
-	ldx	[%sp + 2047 + 0x260], %l6
-	ldx	[%sp + 2047 + 0x268], %l7
-					! switch to Linux tba
-	sethi	%hi(sparc64_ttable_tl0), %l1
-	rdpr	%tba, %l0		! save PROM tba
-	mov	%o0, %g1
-	mov	%o1, %g2
-	mov	%l2, %g3
-	mov	%l3, %g4
-	mov	%l5, %g5
-	mov	%l6, %g6
-	mov	%l7, %g7
-	wrpr	%l1, %tba		! install Linux tba
-	wrpr	%l4, 0, %pstate		! restore PSTATE
+	save	%sp, -192, %sp
+	TRAP_LOAD_THREAD_REG(%g6, %g1)
+	LOAD_PER_CPU_BASE(%g5, %g6, %g4, %g3, %o0)
+	ldx	[%g6 + TI_TASK], %g4
 	call	prom_world
-	 mov	%g0, %o0
+	 mov	0, %o0
 	ldx	[%i1 + 0x000], %l2
 	call	%l2
 	 mov	%i0, %o0
 	mov	%o0, %l1
 	call	prom_world
-	 or	%g0, 1, %o0
-	wrpr	%g0, 0x14, %pstate	! interrupts off
-					! restore PROM mmu globals
-	ldx	[%sp + 2047 + 0x158], %o0
-	ldx	[%sp + 2047 + 0x160], %o1
-	ldx	[%sp + 2047 + 0x168], %l2
-	ldx	[%sp + 2047 + 0x170], %l3
-	ldx	[%sp + 2047 + 0x178], %l5
-	ldx	[%sp + 2047 + 0x180], %l6
-	ldx	[%sp + 2047 + 0x188], %l7
-	wrpr	%g0, 0x414, %pstate	! restore PROM mmu globals
-	mov	%o0, %g1
-	mov	%o1, %g2
-	mov	%l2, %g3
-	mov	%l3, %g4
-	mov	%l5, %g5
-	mov	%l6, %g6
-	mov	%l7, %g7
-	wrpr	%l0, %tba		! restore PROM tba
-	wrpr	%g0, 0x14, %pstate	! restore PROM normal globals
-	ldx	[%sp + 2047 + 0x120], %g1
-	ldx	[%sp + 2047 + 0x128], %g2
-	ldx	[%sp + 2047 + 0x130], %g3
-	ldx	[%sp + 2047 + 0x138], %g4
-	ldx	[%sp + 2047 + 0x140], %g5
-	ldx	[%sp + 2047 + 0x148], %g6
-	ldx	[%sp + 2047 + 0x150], %g7
-	wrpr	%g0, 0x814, %pstate	! restore PROM interrupt globals
-	ldx	[%sp + 2047 + 0x0e8], %g1
-	ldx	[%sp + 2047 + 0x0f0], %g2
-	ldx	[%sp + 2047 + 0x0f8], %g3
-	ldx	[%sp + 2047 + 0x100], %g4
-	ldx	[%sp + 2047 + 0x108], %g5
-	ldx	[%sp + 2047 + 0x110], %g6
-	ldx	[%sp + 2047 + 0x118], %g7
-	wrpr	%g0, 0x15, %pstate	! restore PROM alternate globals
-	ldx	[%sp + 2047 + 0x0b0], %g1
-	ldx	[%sp + 2047 + 0x0b8], %g2
-	ldx	[%sp + 2047 + 0x0c0], %g3
-	ldx	[%sp + 2047 + 0x0c8], %g4
-	ldx	[%sp + 2047 + 0x0d0], %g5
-	ldx	[%sp + 2047 + 0x0d8], %g6
-	ldx	[%sp + 2047 + 0x0e0], %g7
-	wrpr	%l4, 0, %pstate
+	 mov	1, %o0
 	ret
 	 restore %l1, 0, %o0
 
diff --git a/arch/sparc64/prom/console.c b/arch/sparc64/prom/console.c
index ac6d035dd15..7c25c54cefd 100644
--- a/arch/sparc64/prom/console.c
+++ b/arch/sparc64/prom/console.c
@@ -102,6 +102,9 @@ prom_query_input_device(void)
 	if (!strncmp (propb, "rsc", 3))
 		return PROMDEV_IRSC;
 
+	if (!strncmp (propb, "virtual-console", 3))
+		return PROMDEV_IVCONS;
+
 	if (strncmp (propb, "tty", 3) || !propb[3])
 		return PROMDEV_I_UNK;
 
@@ -143,6 +146,9 @@ prom_query_output_device(void)
 	if (!strncmp (propb, "rsc", 3))
 		return PROMDEV_ORSC;
 
+	if (!strncmp (propb, "virtual-console", 3))
+		return PROMDEV_OVCONS;
+
 	if (strncmp (propb, "tty", 3) || !propb[3])
 		return PROMDEV_O_UNK;
 
diff --git a/arch/sparc64/prom/init.c b/arch/sparc64/prom/init.c
index f3cc2d8578b..1c0db842a6f 100644
--- a/arch/sparc64/prom/init.c
+++ b/arch/sparc64/prom/init.c
@@ -14,11 +14,10 @@
 #include <asm/openprom.h>
 #include <asm/oplib.h>
 
-enum prom_major_version prom_vers;
-unsigned int prom_rev, prom_prev;
+/* OBP version string. */
+char prom_version[80];
 
 /* The root node of the prom device tree. */
-int prom_root_node;
 int prom_stdin, prom_stdout;
 int prom_chosen_node;
 
@@ -31,68 +30,25 @@ extern void prom_cif_init(void *, void *);
 
 void __init prom_init(void *cif_handler, void *cif_stack)
 {
-	char buffer[80], *p;
-	int ints[3];
 	int node;
-	int i = 0;
-	int bufadjust;
-
-	prom_vers = PROM_P1275;
 
 	prom_cif_init(cif_handler, cif_stack);
 
-	prom_root_node = prom_getsibling(0);
-	if((prom_root_node == 0) || (prom_root_node == -1))
-		prom_halt();
-
 	prom_chosen_node = prom_finddevice(prom_chosen_path);
 	if (!prom_chosen_node || prom_chosen_node == -1)
 		prom_halt();
 
-	prom_stdin = prom_getint (prom_chosen_node, "stdin");
-	prom_stdout = prom_getint (prom_chosen_node, "stdout");
+	prom_stdin = prom_getint(prom_chosen_node, "stdin");
+	prom_stdout = prom_getint(prom_chosen_node, "stdout");
 
 	node = prom_finddevice("/openprom");
 	if (!node || node == -1)
 		prom_halt();
 
-	prom_getstring (node, "version", buffer, sizeof (buffer));
-
-	prom_printf ("\n");
-
-	if (strncmp (buffer, "OBP ", 4))
-		goto strange_version;
-
-	/*
-	 * Version field is expected to be 'OBP xx.yy.zz date...'
-	 * However, Sun can't stick to this format very well, so
-	 * we need to check for 'OBP  xx.yy.zz date...' and adjust
-	 * accordingly. -spot
-	 */
-
-	if (strncmp (buffer, "OBP  ", 5))
-		bufadjust = 4;
-	else
-		bufadjust = 5;
-
-	p = buffer + bufadjust;
-	while (p && isdigit(*p) && i < 3) {
-		ints[i++] = simple_strtoul(p, NULL, 0);
-		if ((p = strchr(p, '.')) != NULL)
-			p++;
-	}
-	if (i != 3)
-		goto strange_version;
-
-	prom_rev = ints[1];
-	prom_prev = (ints[0] << 16) | (ints[1] << 8) | ints[2];
-
-	printk ("PROMLIB: Sun IEEE Boot Prom %s\n", buffer + bufadjust);
+	prom_getstring(node, "version", prom_version, sizeof(prom_version));
 
-	/* Initialization successful. */
-	return;
+	prom_printf("\n");
 
-strange_version:
-	prom_printf ("Strange OBP version `%s'.\n", buffer);
-	prom_halt ();
+	printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version);
+	printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible);
 }
diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c
index 87f5cfce23b..577bde8b664 100644
--- a/arch/sparc64/prom/misc.c
+++ b/arch/sparc64/prom/misc.c
@@ -112,28 +112,20 @@ unsigned char prom_get_idprom(char *idbuf, int num_bytes)
 	return 0xff;
 }
 
-/* Get the major prom version number. */
-int prom_version(void)
-{
-	return PROM_P1275;
-}
-
-/* Get the prom plugin-revision. */
-int prom_getrev(void)
-{
-	return prom_rev;
-}
-
-/* Get the prom firmware print revision. */
-int prom_getprev(void)
+/* Install Linux trap table so PROM uses that instead of its own. */
+void prom_set_trap_table(unsigned long tba)
 {
-	return prom_prev;
+	p1275_cmd("SUNW,set-trap-table",
+		  (P1275_ARG(0, P1275_ARG_IN_64B) |
+		   P1275_INOUT(1, 0)), tba);
 }
 
-/* Install Linux trap table so PROM uses that instead of its own. */
-void prom_set_trap_table(unsigned long tba)
+void prom_set_trap_table_sun4v(unsigned long tba, unsigned long mmfsa)
 {
-	p1275_cmd("SUNW,set-trap-table", P1275_INOUT(1, 0), tba);
+	p1275_cmd("SUNW,set-trap-table",
+		  (P1275_ARG(0, P1275_ARG_IN_64B) |
+		   P1275_ARG(1, P1275_ARG_IN_64B) |
+		   P1275_INOUT(2, 0)), tba, mmfsa);
 }
 
 int prom_get_mmu_ihandle(void)
@@ -303,9 +295,21 @@ int prom_wakeupsystem(void)
 }
 
 #ifdef CONFIG_SMP
-void prom_startcpu(int cpunode, unsigned long pc, unsigned long o0)
+void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg)
+{
+	p1275_cmd("SUNW,start-cpu", P1275_INOUT(3, 0), cpunode, pc, arg);
+}
+
+void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg)
+{
+	p1275_cmd("SUNW,start-cpu-by-cpuid", P1275_INOUT(3, 0),
+		  cpuid, pc, arg);
+}
+
+void prom_stopcpu_cpuid(int cpuid)
 {
-	p1275_cmd("SUNW,start-cpu", P1275_INOUT(3, 0), cpunode, pc, o0);
+	p1275_cmd("SUNW,stop-cpu-by-cpuid", P1275_INOUT(1, 0),
+		  cpuid);
 }
 
 void prom_stopself(void)
diff --git a/arch/sparc64/prom/p1275.c b/arch/sparc64/prom/p1275.c
index a5a7c571202..2b32c489860 100644
--- a/arch/sparc64/prom/p1275.c
+++ b/arch/sparc64/prom/p1275.c
@@ -30,16 +30,6 @@ extern void prom_world(int);
 extern void prom_cif_interface(void);
 extern void prom_cif_callback(void);
 
-static inline unsigned long spitfire_get_primary_context(void)
-{
-	unsigned long ctx;
-
-	__asm__ __volatile__("ldxa	[%1] %2, %0"
-			     : "=r" (ctx)
-			     : "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU));
-	return ctx;
-}
-
 /*
  * This provides SMP safety on the p1275buf. prom_callback() drops this lock
  * to allow recursuve acquisition.
@@ -55,7 +45,6 @@ long p1275_cmd(const char *service, long fmt, ...)
 	long attrs, x;
 	
 	p = p1275buf.prom_buffer;
-	BUG_ON((spitfire_get_primary_context() & CTX_NR_MASK) != 0);
 
 	spin_lock_irqsave(&prom_entry_lock, flags);
 
diff --git a/arch/sparc64/prom/tree.c b/arch/sparc64/prom/tree.c
index b1ff9e87dcc..49075abd7cb 100644
--- a/arch/sparc64/prom/tree.c
+++ b/arch/sparc64/prom/tree.c
@@ -51,7 +51,7 @@ prom_getparent(int node)
 __inline__ int
 __prom_getsibling(int node)
 {
-	return p1275_cmd ("peer", P1275_INOUT(1, 1), node);
+	return p1275_cmd(prom_peer_name, P1275_INOUT(1, 1), node);
 }
 
 __inline__ int
@@ -59,9 +59,12 @@ prom_getsibling(int node)
 {
 	int sibnode;
 
-	if(node == -1) return 0;
+	if (node == -1)
+		return 0;
 	sibnode = __prom_getsibling(node);
-	if(sibnode == -1) return 0;
+	if (sibnode == -1)
+		return 0;
+
 	return sibnode;
 }