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[MIPS] Print out TLB handler assembly for debugging.
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Small update, using pr_debug and pr_info.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Thiemo Seufer authored and Ralf Baechle committed Jul 13, 2006
1 parent 4bf42d4 commit 115f2a4
Showing 1 changed file with 71 additions and 88 deletions.
159 changes: 71 additions & 88 deletions arch/mips/mm/tlbex.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
*
* Synthesize TLB refill handlers at runtime.
*
* Copyright (C) 2004,2005 by Thiemo Seufer
* Copyright (C) 2004,2005,2006 by Thiemo Seufer
* Copyright (C) 2005 Maciej W. Rozycki
* Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
*
Expand Down Expand Up @@ -35,8 +35,6 @@
#include <asm/smp.h>
#include <asm/war.h>

/* #define DEBUG_TLB */

static __init int __attribute__((unused)) r45k_bvahwbug(void)
{
/* XXX: We should probe for the presence of this bug, but we don't. */
Expand Down Expand Up @@ -728,6 +726,7 @@ static void __init build_r3000_tlb_refill_handler(void)
{
long pgdc = (long)pgd_current;
u32 *p;
int i;

memset(tlb_handler, 0, sizeof(tlb_handler));
p = tlb_handler;
Expand All @@ -753,16 +752,14 @@ static void __init build_r3000_tlb_refill_handler(void)
if (p > tlb_handler + 32)
panic("TLB refill handler space exceeded");

printk("Synthesized TLB refill handler (%u instructions).\n",
(unsigned int)(p - tlb_handler));
#ifdef DEBUG_TLB
{
int i;
pr_info("Synthesized TLB refill handler (%u instructions).\n",
(unsigned int)(p - tlb_handler));

for (i = 0; i < (p - tlb_handler); i++)
printk("%08x\n", tlb_handler[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - tlb_handler); i++)
pr_debug("\t.word 0x%08x\n", tlb_handler[i]);
pr_debug("\t.set pop\n");

memcpy((void *)ebase, tlb_handler, 0x80);
}
Expand Down Expand Up @@ -1175,6 +1172,7 @@ static void __init build_r4000_tlb_refill_handler(void)
struct reloc *r = relocs;
u32 *f;
unsigned int final_len;
int i;

memset(tlb_handler, 0, sizeof(tlb_handler));
memset(labels, 0, sizeof(labels));
Expand Down Expand Up @@ -1272,24 +1270,21 @@ static void __init build_r4000_tlb_refill_handler(void)
#endif /* CONFIG_64BIT */

resolve_relocs(relocs, labels);
printk("Synthesized TLB refill handler (%u instructions).\n",
final_len);

#ifdef DEBUG_TLB
{
int i;
pr_info("Synthesized TLB refill handler (%u instructions).\n",
final_len);

f = final_handler;
f = final_handler;
#ifdef CONFIG_64BIT
if (final_len > 32)
final_len = 64;
else
f = final_handler + 32;
if (final_len > 32)
final_len = 64;
else
f = final_handler + 32;
#endif /* CONFIG_64BIT */
for (i = 0; i < final_len; i++)
printk("%08x\n", f[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < final_len; i++)
pr_debug("\t.word 0x%08x\n", f[i]);
pr_debug("\t.set pop\n");

memcpy((void *)ebase, final_handler, 0x100);
}
Expand Down Expand Up @@ -1522,6 +1517,7 @@ static void __init build_r3000_tlb_load_handler(void)
u32 *p = handle_tlbl;
struct label *l = labels;
struct reloc *r = relocs;
int i;

memset(handle_tlbl, 0, sizeof(handle_tlbl));
memset(labels, 0, sizeof(labels));
Expand All @@ -1541,24 +1537,22 @@ static void __init build_r3000_tlb_load_handler(void)
panic("TLB load handler fastpath space exceeded");

resolve_relocs(relocs, labels);
printk("Synthesized TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));

#ifdef DEBUG_TLB
{
int i;
pr_info("Synthesized TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));

for (i = 0; i < (p - handle_tlbl); i++)
printk("%08x\n", handle_tlbl[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - handle_tlbl); i++)
pr_debug("\t.word 0x%08x\n", handle_tlbl[i]);
pr_debug("\t.set pop\n");
}

static void __init build_r3000_tlb_store_handler(void)
{
u32 *p = handle_tlbs;
struct label *l = labels;
struct reloc *r = relocs;
int i;

memset(handle_tlbs, 0, sizeof(handle_tlbs));
memset(labels, 0, sizeof(labels));
Expand All @@ -1578,24 +1572,22 @@ static void __init build_r3000_tlb_store_handler(void)
panic("TLB store handler fastpath space exceeded");

resolve_relocs(relocs, labels);
printk("Synthesized TLB store handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbs));
pr_info("Synthesized TLB store handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbs));

#ifdef DEBUG_TLB
{
int i;

for (i = 0; i < (p - handle_tlbs); i++)
printk("%08x\n", handle_tlbs[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - handle_tlbs); i++)
pr_debug("\t.word 0x%08x\n", handle_tlbs[i]);
pr_debug("\t.set pop\n");
}

static void __init build_r3000_tlb_modify_handler(void)
{
u32 *p = handle_tlbm;
struct label *l = labels;
struct reloc *r = relocs;
int i;

memset(handle_tlbm, 0, sizeof(handle_tlbm));
memset(labels, 0, sizeof(labels));
Expand All @@ -1615,17 +1607,14 @@ static void __init build_r3000_tlb_modify_handler(void)
panic("TLB modify handler fastpath space exceeded");

resolve_relocs(relocs, labels);
printk("Synthesized TLB modify handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbm));
pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbm));

#ifdef DEBUG_TLB
{
int i;

for (i = 0; i < (p - handle_tlbm); i++)
printk("%08x\n", handle_tlbm[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - handle_tlbm); i++)
pr_debug("\t.word 0x%08x\n", handle_tlbm[i]);
pr_debug("\t.set pop\n");
}

/*
Expand Down Expand Up @@ -1677,6 +1666,7 @@ static void __init build_r4000_tlb_load_handler(void)
u32 *p = handle_tlbl;
struct label *l = labels;
struct reloc *r = relocs;
int i;

memset(handle_tlbl, 0, sizeof(handle_tlbl));
memset(labels, 0, sizeof(labels));
Expand Down Expand Up @@ -1704,24 +1694,22 @@ static void __init build_r4000_tlb_load_handler(void)
panic("TLB load handler fastpath space exceeded");

resolve_relocs(relocs, labels);
printk("Synthesized TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));

#ifdef DEBUG_TLB
{
int i;
pr_info("Synthesized TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));

for (i = 0; i < (p - handle_tlbl); i++)
printk("%08x\n", handle_tlbl[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - handle_tlbl); i++)
pr_debug("\t.word 0x%08x\n", handle_tlbl[i]);
pr_debug("\t.set pop\n");
}

static void __init build_r4000_tlb_store_handler(void)
{
u32 *p = handle_tlbs;
struct label *l = labels;
struct reloc *r = relocs;
int i;

memset(handle_tlbs, 0, sizeof(handle_tlbs));
memset(labels, 0, sizeof(labels));
Expand All @@ -1740,24 +1728,22 @@ static void __init build_r4000_tlb_store_handler(void)
panic("TLB store handler fastpath space exceeded");

resolve_relocs(relocs, labels);
printk("Synthesized TLB store handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbs));

#ifdef DEBUG_TLB
{
int i;
pr_info("Synthesized TLB store handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbs));

for (i = 0; i < (p - handle_tlbs); i++)
printk("%08x\n", handle_tlbs[i]);
}
#endif
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - handle_tlbs); i++)
pr_debug("\t.word 0x%08x\n", handle_tlbs[i]);
pr_debug("\t.set pop\n");
}

static void __init build_r4000_tlb_modify_handler(void)
{
u32 *p = handle_tlbm;
struct label *l = labels;
struct reloc *r = relocs;
int i;

memset(handle_tlbm, 0, sizeof(handle_tlbm));
memset(labels, 0, sizeof(labels));
Expand All @@ -1777,17 +1763,14 @@ static void __init build_r4000_tlb_modify_handler(void)
panic("TLB modify handler fastpath space exceeded");

resolve_relocs(relocs, labels);
printk("Synthesized TLB modify handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbm));

#ifdef DEBUG_TLB
{
int i;

for (i = 0; i < (p - handle_tlbm); i++)
printk("%08x\n", handle_tlbm[i]);
}
#endif
pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbm));

pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
for (i = 0; i < (p - handle_tlbm); i++)
pr_debug("\t.word 0x%08x\n", handle_tlbm[i]);
pr_debug("\t.set pop\n");
}

void __init build_tlb_refill_handler(void)
Expand Down

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