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-rw-r--r--arch/mips/lib/Makefile21
-rw-r--r--arch/mips/lib/dump_tlb.c101
-rw-r--r--arch/mips/lib/r3k_dump_tlb.c63
-rw-r--r--arch/mips/lib/ucmpdi2.c2
-rw-r--r--arch/mips/lib/uncached.c1
5 files changed, 186 insertions, 2 deletions
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 5dad13efba7..91ed1eb3310 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -8,5 +8,24 @@ lib-y += csum_partial.o memcpy.o memcpy-inatomic.o memset.o strlen_user.o \
obj-y += iomap.o
obj-$(CONFIG_PCI) += iomap-pci.o
+obj-$(CONFIG_CPU_LOONGSON2) += dump_tlb.o
+obj-$(CONFIG_CPU_MIPS32) += dump_tlb.o
+obj-$(CONFIG_CPU_MIPS64) += dump_tlb.o
+obj-$(CONFIG_CPU_NEVADA) += dump_tlb.o
+obj-$(CONFIG_CPU_R10000) += dump_tlb.o
+obj-$(CONFIG_CPU_R3000) += r3k_dump_tlb.o
+obj-$(CONFIG_CPU_R4300) += dump_tlb.o
+obj-$(CONFIG_CPU_R4X00) += dump_tlb.o
+obj-$(CONFIG_CPU_R5000) += dump_tlb.o
+obj-$(CONFIG_CPU_R5432) += dump_tlb.o
+obj-$(CONFIG_CPU_R6000) +=
+obj-$(CONFIG_CPU_R8000) +=
+obj-$(CONFIG_CPU_RM7000) += dump_tlb.o
+obj-$(CONFIG_CPU_RM9000) += dump_tlb.o
+obj-$(CONFIG_CPU_SB1) += dump_tlb.o
+obj-$(CONFIG_CPU_TX39XX) += r3k_dump_tlb.o
+obj-$(CONFIG_CPU_TX49XX) += dump_tlb.o
+obj-$(CONFIG_CPU_VR41XX) += dump_tlb.o
+
# libgcc-style stuff needed in the kernel
-lib-y += ashldi3.o ashrdi3.o lshrdi3.o ucmpdi2.o
+obj-y += ashldi3.o ashrdi3.o lshrdi3.o ucmpdi2.o
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c
new file mode 100644
index 00000000000..465ff0ec85b
--- /dev/null
+++ b/arch/mips/lib/dump_tlb.c
@@ -0,0 +1,101 @@
+/*
+ * Dump R4x00 TLB for debugging purposes.
+ *
+ * Copyright (C) 1994, 1995 by Waldorf Electronics, written by Ralf Baechle.
+ * Copyright (C) 1999 by Silicon Graphics, Inc.
+ */
+#include <linux/kernel.h>
+#include <linux/mm.h>
+
+#include <asm/mipsregs.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/tlbdebug.h>
+
+static inline const char *msk2str(unsigned int mask)
+{
+ switch (mask) {
+ case PM_4K: return "4kb";
+ case PM_16K: return "16kb";
+ case PM_64K: return "64kb";
+ case PM_256K: return "256kb";
+#ifndef CONFIG_CPU_VR41XX
+ case PM_1M: return "1Mb";
+ case PM_4M: return "4Mb";
+ case PM_16M: return "16Mb";
+ case PM_64M: return "64Mb";
+ case PM_256M: return "256Mb";
+#endif
+ }
+ return "";
+}
+
+#define BARRIER() \
+ __asm__ __volatile__( \
+ ".set\tnoreorder\n\t" \
+ "nop;nop;nop;nop;nop;nop;nop\n\t" \
+ ".set\treorder");
+
+static void dump_tlb(int first, int last)
+{
+ unsigned long s_entryhi, entryhi, asid;
+ unsigned long long entrylo0, entrylo1;
+ unsigned int s_index, pagemask, c0, c1, i;
+
+ s_entryhi = read_c0_entryhi();
+ s_index = read_c0_index();
+ asid = s_entryhi & 0xff;
+
+ for (i = first; i <= last; i++) {
+ write_c0_index(i);
+ BARRIER();
+ tlb_read();
+ BARRIER();
+ pagemask = read_c0_pagemask();
+ entryhi = read_c0_entryhi();
+ entrylo0 = read_c0_entrylo0();
+ entrylo1 = read_c0_entrylo1();
+
+ /* Unused entries have a virtual address of CKSEG0. */
+ if ((entryhi & ~0x1ffffUL) != CKSEG0
+ && (entryhi & 0xff) == asid) {
+#ifdef CONFIG_32BIT
+ int width = 8;
+#else
+ int width = 11;
+#endif
+ /*
+ * Only print entries in use
+ */
+ printk("Index: %2d pgmask=%s ", i, msk2str(pagemask));
+
+ c0 = (entrylo0 >> 3) & 7;
+ c1 = (entrylo1 >> 3) & 7;
+
+ printk("va=%0*lx asid=%02lx\n",
+ width, (entryhi & ~0x1fffUL),
+ entryhi & 0xff);
+ printk("\t[pa=%0*llx c=%d d=%d v=%d g=%d] ",
+ width,
+ (entrylo0 << 6) & PAGE_MASK, c0,
+ (entrylo0 & 4) ? 1 : 0,
+ (entrylo0 & 2) ? 1 : 0,
+ (entrylo0 & 1) ? 1 : 0);
+ printk("[pa=%0*llx c=%d d=%d v=%d g=%d]\n",
+ width,
+ (entrylo1 << 6) & PAGE_MASK, c1,
+ (entrylo1 & 4) ? 1 : 0,
+ (entrylo1 & 2) ? 1 : 0,
+ (entrylo1 & 1) ? 1 : 0);
+ }
+ }
+ printk("\n");
+
+ write_c0_entryhi(s_entryhi);
+ write_c0_index(s_index);
+}
+
+void dump_tlb_all(void)
+{
+ dump_tlb(0, current_cpu_data.tlbsize - 1);
+}
diff --git a/arch/mips/lib/r3k_dump_tlb.c b/arch/mips/lib/r3k_dump_tlb.c
new file mode 100644
index 00000000000..9cee907975a
--- /dev/null
+++ b/arch/mips/lib/r3k_dump_tlb.c
@@ -0,0 +1,63 @@
+/*
+ * Dump R3000 TLB for debugging purposes.
+ *
+ * Copyright (C) 1994, 1995 by Waldorf Electronics, written by Ralf Baechle.
+ * Copyright (C) 1999 by Silicon Graphics, Inc.
+ * Copyright (C) 1999 by Harald Koerfgen
+ */
+#include <linux/kernel.h>
+#include <linux/mm.h>
+
+#include <asm/mipsregs.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/tlbdebug.h>
+
+extern int r3k_have_wired_reg; /* defined in tlb-r3k.c */
+
+static void dump_tlb(int first, int last)
+{
+ int i;
+ unsigned int asid;
+ unsigned long entryhi, entrylo0;
+
+ asid = read_c0_entryhi() & 0xfc0;
+
+ for (i = first; i <= last; i++) {
+ write_c0_index(i<<8);
+ __asm__ __volatile__(
+ ".set\tnoreorder\n\t"
+ "tlbr\n\t"
+ "nop\n\t"
+ ".set\treorder");
+ entryhi = read_c0_entryhi();
+ entrylo0 = read_c0_entrylo0();
+
+ /* Unused entries have a virtual address of KSEG0. */
+ if ((entryhi & 0xffffe000) != 0x80000000
+ && (entryhi & 0xfc0) == asid) {
+ /*
+ * Only print entries in use
+ */
+ printk("Index: %2d ", i);
+
+ printk("va=%08lx asid=%08lx"
+ " [pa=%06lx n=%d d=%d v=%d g=%d]",
+ (entryhi & 0xffffe000),
+ entryhi & 0xfc0,
+ entrylo0 & PAGE_MASK,
+ (entrylo0 & (1 << 11)) ? 1 : 0,
+ (entrylo0 & (1 << 10)) ? 1 : 0,
+ (entrylo0 & (1 << 9)) ? 1 : 0,
+ (entrylo0 & (1 << 8)) ? 1 : 0);
+ }
+ }
+ printk("\n");
+
+ write_c0_entryhi(asid);
+}
+
+void dump_tlb_all(void)
+{
+ dump_tlb(0, current_cpu_data.tlbsize - 1);
+}
diff --git a/arch/mips/lib/ucmpdi2.c b/arch/mips/lib/ucmpdi2.c
index e9ff258ef02..e2ff6072b5a 100644
--- a/arch/mips/lib/ucmpdi2.c
+++ b/arch/mips/lib/ucmpdi2.c
@@ -2,7 +2,7 @@
#include "libgcc.h"
-word_type __ucmpdi2 (unsigned long a, unsigned long b)
+word_type __ucmpdi2 (unsigned long long a, unsigned long long b)
{
const DWunion au = {.ll = a};
const DWunion bu = {.ll = b};
diff --git a/arch/mips/lib/uncached.c b/arch/mips/lib/uncached.c
index 2388f7f3ffd..58d14f4d934 100644
--- a/arch/mips/lib/uncached.c
+++ b/arch/mips/lib/uncached.c
@@ -12,6 +12,7 @@
#include <asm/addrspace.h>
#include <asm/bug.h>
+#include <asm/cacheflush.h>
#ifndef CKSEG2
#define CKSEG2 CKSSEG
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-19 01:54:50 +0000