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-rw-r--r--arch/mips/kernel/head.S25
-rw-r--r--arch/mips/kernel/setup.c7
-rw-r--r--arch/mips/mips-boards/atlas/atlas_int.c5
-rw-r--r--arch/mips/mips-boards/generic/memory.c32
-rw-r--r--arch/mips/mips-boards/malta/malta_int.c4
-rw-r--r--drivers/scsi/sym53c8xx_defs.h10
-rw-r--r--include/asm-mips/bootinfo.h9
-rw-r--r--include/asm-mips/cpu.h2
-rw-r--r--include/asm-mips/stackframe.h26
9 files changed, 90 insertions, 30 deletions
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index fb73d3db0..1fd8c2590 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -432,12 +432,31 @@ handle_vcei:
* unconditional jump to this vector.
*/
NESTED(except_vec_ejtag_debug, 0, sp)
- PRINT("SDBBP EJTAG debug exception - not handled yet, hang!\n");
-1: j 1b
+ j ejtag_debug_handler
nop
END(except_vec_ejtag_debug)
-
+ /*
+ * EJTAG debug exception handler.
+ */
+ NESTED(ejtag_debug_handler, PT_SIZE, sp)
+ .set noat
+ .set noreorder
+ SAVE_ALL
+ PRINT("SDBBP EJTAG debug exception - not handled yet, just ignored!\n");
+ mfc0 k0, $23 # Get EJTAG Debug register.
+ mfc0 k1, $24 # Get DEPC register.
+ bgez k0, 1f
+ addiu k1, k1, 4 # SBDDP inst. in delay slot.
+ addiu k1, k1, 4
+1: mtc0 k1, $24
+ RESTORE_ALL
+ .word 0x4200001f # deret, return EJTAG debug exception.
+ nop
+ .set at
+ END(ejtag_debug_handler)
+
+
/*
* Kernel entry point
*/
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 82d44e33e..ac15aae33 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -305,6 +305,13 @@ static inline void cpu_probe(void)
switch (mips_cpu.processor_id & 0xff00) {
case PRID_IMP_4KC:
mips_cpu.cputype = CPU_4KC;
+ goto cpu_4kc;
+ case PRID_IMP_4KEC:
+ mips_cpu.cputype = CPU_4KEC;
+ goto cpu_4kc;
+ case PRID_IMP_4KSC:
+ mips_cpu.cputype = CPU_4KSC;
+cpu_4kc:
/* Why do we set all these options by default, THEN query them?? */
mips_cpu.cputype = MIPS_CPU_ISA_M32;
mips_cpu.options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
index 8ff004b55..c5035ad0b 100644
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ b/arch/mips/mips-boards/atlas/atlas_int.c
@@ -51,6 +51,11 @@ irq_desc_t irq_desc[NR_IRQS];
#define DEBUG_INT(x...)
#endif
+void inline disable_irq_nosync(unsigned int irq_nr)
+{
+ disable_atlas_irq(irq_nr);
+}
+
void disable_atlas_irq(unsigned int irq_nr)
{
atlas_hw0_icregs->intrsten = (1 << irq_nr);
diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mips-boards/generic/memory.c
index 915f0a3e4..e2ba1531d 100644
--- a/arch/mips/mips-boards/generic/memory.c
+++ b/arch/mips/mips-boards/generic/memory.c
@@ -50,6 +50,11 @@ static char *mtypes[3] = {
};
#endif
+/* References to section boundaries */
+extern char _end;
+
+#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
+
struct prom_pmemblock * __init prom_getmdesc(void)
{
@@ -94,9 +99,13 @@ struct prom_pmemblock * __init prom_getmdesc(void)
mdesc[2].size = 0x00010000;
#endif
- mdesc[3].type = yamon_free;
+ mdesc[3].type = yamon_dontuse;
mdesc[3].base = 0x00100000;
- mdesc[3].size = memsize - mdesc[3].base;
+ mdesc[3].size = PHYSADDR(PFN_ALIGN(&_end)) - mdesc[3].base;
+
+ mdesc[4].type = yamon_free;
+ mdesc[4].base = PHYSADDR(PFN_ALIGN(&_end));
+ mdesc[4].size = memsize - mdesc[4].base;
return &mdesc[0];
}
@@ -118,11 +127,10 @@ void __init prom_meminit(void)
struct prom_pmemblock *p;
#ifdef DEBUG
- int i = 0;
-
prom_printf("YAMON MEMORY DESCRIPTOR dump:\n");
p = prom_getmdesc();
while (p->size) {
+ int i = 0;
prom_printf("[%d,%p]: base<%08lx> size<%08lx> type<%s>\n",
i, p, p->base, p->size, mtypes[p->type]);
p++;
@@ -130,24 +138,24 @@ void __init prom_meminit(void)
}
#endif
p = prom_getmdesc();
+
while (p->size) {
- unsigned long base, size;
long type;
+ unsigned long base, size;
type = prom_memtype_classify (p->type);
base = p->base;
size = p->size;
add_memory_region(base, size, type);
-
- p++;
+ p++;
}
}
-void prom_free_prom_memory (void)
+void __init
+prom_free_prom_memory (void)
{
int i;
- struct prom_pmemblock *p;
unsigned long freed = 0;
unsigned long addr;
@@ -158,9 +166,9 @@ void prom_free_prom_memory (void)
addr = boot_mem_map.map[i].addr;
while (addr < boot_mem_map.map[i].addr
+ boot_mem_map.map[i].size) {
- ClearPageReserved(virt_to_page(phys_to_virt(addr)));
- set_page_count(virt_to_page(phys_to_virt(addr)), 1);
- free_page(phys_to_virt(addr));
+ ClearPageReserved(virt_to_page(__va(addr)));
+ set_page_count(virt_to_page(__va(addr)), 1);
+ free_page(__va(addr));
addr += PAGE_SIZE;
freed += PAGE_SIZE;
}
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 085fefcdb..fdfe32c75 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -69,6 +69,10 @@ static struct irqaction *irq_action[8] = {
*/
static unsigned int cached_int_mask = 0xffff;
+void inline disable_irq_nosync(unsigned int irq_nr)
+{
+ disable_irq(irq_nr);
+}
void disable_irq(unsigned int irq_nr)
{
diff --git a/drivers/scsi/sym53c8xx_defs.h b/drivers/scsi/sym53c8xx_defs.h
index 2ad3afd3c..3d38346f9 100644
--- a/drivers/scsi/sym53c8xx_defs.h
+++ b/drivers/scsi/sym53c8xx_defs.h
@@ -408,11 +408,6 @@
#define readl_l2b(a) le32_to_cpu(readl(a))
#define writew_b2l(v,a) writew(cpu_to_le16(v),a)
#define writel_b2l(v,a) writel(cpu_to_le32(v),a)
-#else /* Other bid-endian */
-#define readw_l2b readw
-#define readl_l2b readl
-#define writew_b2l writew
-#define writel_b2l writel
#elif defined(__mips__)
#define readw_l2b readw
#define readl_l2b readl
@@ -422,6 +417,11 @@
#define inl_l2b inl
#define outw_b2l outw
#define outl_b2l outl
+#else /* Other big-endian */
+#define readw_l2b readw
+#define readl_l2b readl
+#define writew_b2l writew
+#define writel_b2l writel
#endif
#else /* little endian */
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index 2bb64bfc5..7c2bb1777 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -233,15 +233,18 @@
#define CPU_TX3912 34
#define CPU_TX3922 35
#define CPU_TX3927 36
-#define CPU_AU1000 37
-#define CPU_LAST 37
+#define CPU_AU1000 37
+#define CPU_4KEC 37
+#define CPU_4KSC 38
+#define CPU_LAST 39
#define CPU_NAMES { "unknown", "R2000", "R3000", "R3000A", "R3041", "R3051", \
"R3052", "R3081", "R3081E", "R4000PC", "R4000SC", "R4000MC", \
"R4200", "R4400PC", "R4400SC", "R4400MC", "R4600", "R6000", \
"R6000A", "R8000", "R10000", "R4300", "R4650", "R4700", "R5000", \
"R5000A", "R4640", "Nevada", "RM7000", "R5432", "MIPS 4Kc", \
- "MIPS 5Kc", "R4310", "SiByte SB1", "TX3912", "TX3922", "TX3927", "Au1000" }
+ "MIPS 5Kc", "R4310", "SiByte SB1", "TX3912", "TX3922", "TX3927", \
+ "Au1000", "MIPS 4KEc", "MIPS 4KSc" }
#define COMMAND_LINE_SIZE 256
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 439928ad4..73c4a711d 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -59,6 +59,8 @@
#define PRID_IMP_NEVADA 0x2800 /* RM5260 ??? */
#define PRID_IMP_4KC 0x8000
#define PRID_IMP_5KC 0x8100
+#define PRID_IMP_4KEC 0x8400
+#define PRID_IMP_4KSC 0x8600
#define PRID_IMP_UNKNOWN 0xff00
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index 2da7fbd45..d46cecef9 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -1,12 +1,13 @@
/*
- * include/asm-mips/stackframe.h
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
*
- * Copyright (C) 1994, 1995, 1996 by Ralf Baechle and Paul M. Antoine.
- *
- * $Id: stackframe.h,v 1.10 1999/08/13 17:07:27 harald Exp $
+ * Copyright (C) 1994, 1995, 1996, 2001 Ralf Baechle
+ * Copyright (C) 1994, 1995, 1996 Paul M. Antoine.
*/
-#ifndef __ASM_MIPS_STACKFRAME_H
-#define __ASM_MIPS_STACKFRAME_H
+#ifndef __ASM_STACKFRAME_H
+#define __ASM_STACKFRAME_H
#include <asm/addrspace.h>
#include <asm/mipsregs.h>
@@ -235,6 +236,16 @@ __asm__ ( \
#endif
+#define RESTORE_SP \
+ lw sp, PT_R29(sp); \
+
+#define RESTORE_ALL \
+ RESTORE_SOME; \
+ RESTORE_AT; \
+ RESTORE_TEMP; \
+ RESTORE_STATIC; \
+ RESTORE_SP
+
#define RESTORE_ALL_AND_RET \
RESTORE_SOME; \
RESTORE_AT; \
@@ -242,6 +253,7 @@ __asm__ ( \
RESTORE_STATIC; \
RESTORE_SP_AND_RET
+
/*
* Move to kernel mode and disable interrupts.
* Set cp0 enable bit as sign that we're running on the kernel stack
@@ -275,4 +287,4 @@ __asm__ ( \
xori t0,0x1e; \
mtc0 t0,CP0_STATUS
-#endif /* __ASM_MIPS_STACKFRAME_H */
+#endif /* __ASM_STACKFRAME_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 15:22:00 +0000