From: Thiemo Seufer <ths@networkno.de>
To: linux-mips@linux-mips.org
Cc: ralf@linux-mips.org
Subject: [PATCH] Print out TLB handler assembly
Date: Sun, 9 Jul 2006 01:22:20 +0100 [thread overview]
Message-ID: <20060709002220.GB4375@networkno.de> (raw)
Hello All,
this changes tlbex to print out the (.word) assembler code of
the synthesized handlers.
Thiemo
Signed-off-by: Thiemo Seufer <ths@networkno.de>
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index e1a8139..709280e 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -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)
*
@@ -35,8 +35,6 @@ #include <asm/elf.h>
#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. */
@@ -728,6 +726,7 @@ static void __init build_r3000_tlb_refil
{
long pgdc = (long)pgd_current;
u32 *p;
+ int i;
memset(tlb_handler, 0, sizeof(tlb_handler));
p = tlb_handler;
@@ -753,16 +752,15 @@ static void __init build_r3000_tlb_refil
if (p > tlb_handler + 32)
panic("TLB refill handler space exceeded");
- printk("Synthesized TLB refill handler (%u instructions).\n",
+ printk(KERN_INFO
+ "Synthesized TLB refill handler (%u instructions).\n",
(unsigned int)(p - tlb_handler));
-#ifdef DEBUG_TLB
- {
- int i;
- for (i = 0; i < (p - tlb_handler); i++)
- printk("%08x\n", tlb_handler[i]);
- }
-#endif
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - tlb_handler); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", tlb_handler[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
memcpy((void *)ebase, tlb_handler, 0x80);
}
@@ -1175,6 +1173,7 @@ static void __init build_r4000_tlb_refil
struct reloc *r = relocs;
u32 *f;
unsigned int final_len;
+ int i;
memset(tlb_handler, 0, sizeof(tlb_handler));
memset(labels, 0, sizeof(labels));
@@ -1272,24 +1271,22 @@ #else /* CONFIG_64BIT */
#endif /* CONFIG_64BIT */
resolve_relocs(relocs, labels);
- printk("Synthesized TLB refill handler (%u instructions).\n",
+ printk(KERN_INFO
+ "Synthesized TLB refill handler (%u instructions).\n",
final_len);
-#ifdef DEBUG_TLB
- {
- int i;
-
- 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
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < final_len; i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", f[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
memcpy((void *)ebase, final_handler, 0x100);
}
@@ -1522,6 +1519,7 @@ static void __init build_r3000_tlb_load_
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));
@@ -1541,17 +1539,15 @@ static void __init build_r3000_tlb_load_
panic("TLB load handler fastpath space exceeded");
resolve_relocs(relocs, labels);
- printk("Synthesized TLB load handler fastpath (%u instructions).\n",
+ printk(KERN_INFO
+ "Synthesized TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));
-#ifdef DEBUG_TLB
- {
- int i;
-
- for (i = 0; i < (p - handle_tlbl); i++)
- printk("%08x\n", handle_tlbl[i]);
- }
-#endif
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - handle_tlbl); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", handle_tlbl[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
}
static void __init build_r3000_tlb_store_handler(void)
@@ -1559,6 +1555,7 @@ static void __init build_r3000_tlb_store
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));
@@ -1578,17 +1575,15 @@ static void __init build_r3000_tlb_store
panic("TLB store handler fastpath space exceeded");
resolve_relocs(relocs, labels);
- printk("Synthesized TLB store handler fastpath (%u instructions).\n",
+ printk(KERN_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
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - handle_tlbs); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", handle_tlbs[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
}
static void __init build_r3000_tlb_modify_handler(void)
@@ -1596,6 +1591,7 @@ static void __init build_r3000_tlb_modif
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));
@@ -1615,17 +1611,15 @@ static void __init build_r3000_tlb_modif
panic("TLB modify handler fastpath space exceeded");
resolve_relocs(relocs, labels);
- printk("Synthesized TLB modify handler fastpath (%u instructions).\n",
+ printk(KERN_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
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - handle_tlbm); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", handle_tlbm[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
}
/*
@@ -1677,6 +1671,7 @@ static void __init build_r4000_tlb_load_
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));
@@ -1704,17 +1699,15 @@ static void __init build_r4000_tlb_load_
panic("TLB load handler fastpath space exceeded");
resolve_relocs(relocs, labels);
- printk("Synthesized TLB load handler fastpath (%u instructions).\n",
+ printk(KERN_INFO
+ "Synthesized TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));
-#ifdef DEBUG_TLB
- {
- int i;
-
- for (i = 0; i < (p - handle_tlbl); i++)
- printk("%08x\n", handle_tlbl[i]);
- }
-#endif
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - handle_tlbl); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", handle_tlbl[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
}
static void __init build_r4000_tlb_store_handler(void)
@@ -1722,6 +1715,7 @@ static void __init build_r4000_tlb_store
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));
@@ -1740,17 +1734,15 @@ static void __init build_r4000_tlb_store
panic("TLB store handler fastpath space exceeded");
resolve_relocs(relocs, labels);
- printk("Synthesized TLB store handler fastpath (%u instructions).\n",
+ printk(KERN_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
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - handle_tlbs); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", handle_tlbs[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
}
static void __init build_r4000_tlb_modify_handler(void)
@@ -1758,6 +1750,7 @@ static void __init build_r4000_tlb_modif
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));
@@ -1777,17 +1770,15 @@ static void __init build_r4000_tlb_modif
panic("TLB modify handler fastpath space exceeded");
resolve_relocs(relocs, labels);
- printk("Synthesized TLB modify handler fastpath (%u instructions).\n",
+ printk(KERN_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
+ printk(KERN_DEBUG "\t.set push\n");
+ printk(KERN_DEBUG "\t.set noreorder\n");
+ for (i = 0; i < (p - handle_tlbm); i++)
+ printk(KERN_DEBUG "\t.word 0x%08x\n", handle_tlbm[i]);
+ printk(KERN_DEBUG "\t.set pop\n");
}
void __init build_tlb_refill_handler(void)
next reply other threads:[~2006-07-09 0:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-09 0:22 Thiemo Seufer [this message]
2006-07-09 0:47 ` [PATCH] Print out TLB handler assembly Thiemo Seufer
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