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MIPS: uasm: Add option to export uasm API.

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A 'select EXPORT_UASM' in Kconfig will cause the uasm to be exported
for use in modules.  When it is exported, all the uasm data and code
cease to be __init and __initdata.

Also daddiu_bug cannot be __cpuinitdata if uasm is exported.  The
cleanest thing is to just make it normal data.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1500/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2010-07-23 18:41:43 -07:00 committed by Ralf Baechle
parent 5b97c3f7ae
commit 22b0763a23
4 changed files with 110 additions and 63 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/mips/Kconfig
View file

@ -915,6 +915,9 @@ config CPU_LITTLE_ENDIAN
endchoice
config EXPORT_UASM
bool
config SYS_SUPPORTS_APM_EMULATION
bool

37
arch/mips/include/asm/uasm.h
View file

@ -10,44 +10,55 @@
#include <linux/types.h>
#ifdef CONFIG_EXPORT_UASM
#include <linux/module.h>
#define __uasminit
#define __uasminitdata
#define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym)
#else
#define __uasminit __cpuinit
#define __uasminitdata __cpuinitdata
#define UASM_EXPORT_SYMBOL(sym)
#endif
#define Ip_u1u2u3(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
#define Ip_u2u1u3(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
#define Ip_u3u1u2(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
#define Ip_u1u2s3(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
#define Ip_u2s3u1(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c)
#define Ip_u2u1s3(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
#define Ip_u2u1msbu3(op) \
void __cpuinit \
void __uasminit \
uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \
unsigned int d)
#define Ip_u1u2(op) \
void __cpuinit uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
void __uasminit uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
#define Ip_u1s2(op) \
void __cpuinit uasm_i##op(u32 **buf, unsigned int a, signed int b)
void __uasminit uasm_i##op(u32 **buf, unsigned int a, signed int b)
#define Ip_u1(op) void __cpuinit uasm_i##op(u32 **buf, unsigned int a)
#define Ip_u1(op) void __uasminit uasm_i##op(u32 **buf, unsigned int a)
#define Ip_0(op) void __cpuinit uasm_i##op(u32 **buf)
#define Ip_0(op) void __uasminit uasm_i##op(u32 **buf)
Ip_u2u1s3(_addiu);
Ip_u3u1u2(_addu);
@ -112,7 +123,7 @@ struct uasm_label {
int lab;
};
void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
void __uasminit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
#ifdef CONFIG_64BIT
int uasm_in_compat_space_p(long addr);
#endif
@ -122,7 +133,7 @@ void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
void UASM_i_LA(u32 **buf, unsigned int rs, long addr);
#define UASM_L_LA(lb) \
static inline void __cpuinit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
{ \
uasm_build_label(lab, addr, label##lb); \
}

2
arch/mips/kernel/cpu-bugs64.c
View file

@ -239,7 +239,7 @@ static inline void check_daddi(void)
panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
}
int daddiu_bug __cpuinitdata = -1;
int daddiu_bug = -1;
static inline void check_daddiu(void)
{

131
arch/mips/mm/uasm.c
View file

@ -86,7 +86,7 @@ struct insn {
| (e) << RE_SH \
| (f) << FUNC_SH)
static struct insn insn_table[] __cpuinitdata = {
static struct insn insn_table[] __uasminitdata = {
{ insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
{ insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
{ insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
@ -150,7 +150,7 @@ static struct insn insn_table[] __cpuinitdata = {
#undef M
static inline __cpuinit u32 build_rs(u32 arg)
static inline __uasminit u32 build_rs(u32 arg)
{
if (arg & ~RS_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -158,7 +158,7 @@ static inline __cpuinit u32 build_rs(u32 arg)
return (arg & RS_MASK) << RS_SH;
}
static inline __cpuinit u32 build_rt(u32 arg)
static inline __uasminit u32 build_rt(u32 arg)
{
if (arg & ~RT_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -166,7 +166,7 @@ static inline __cpuinit u32 build_rt(u32 arg)
return (arg & RT_MASK) << RT_SH;
}
static inline __cpuinit u32 build_rd(u32 arg)
static inline __uasminit u32 build_rd(u32 arg)
{
if (arg & ~RD_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -174,7 +174,7 @@ static inline __cpuinit u32 build_rd(u32 arg)
return (arg & RD_MASK) << RD_SH;
}
static inline __cpuinit u32 build_re(u32 arg)
static inline __uasminit u32 build_re(u32 arg)
{
if (arg & ~RE_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -182,7 +182,7 @@ static inline __cpuinit u32 build_re(u32 arg)
return (arg & RE_MASK) << RE_SH;
}
static inline __cpuinit u32 build_simm(s32 arg)
static inline __uasminit u32 build_simm(s32 arg)
{
if (arg > 0x7fff || arg < -0x8000)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -190,7 +190,7 @@ static inline __cpuinit u32 build_simm(s32 arg)
return arg & 0xffff;
}
static inline __cpuinit u32 build_uimm(u32 arg)
static inline __uasminit u32 build_uimm(u32 arg)
{
if (arg & ~IMM_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -198,7 +198,7 @@ static inline __cpuinit u32 build_uimm(u32 arg)
return arg & IMM_MASK;
}
static inline __cpuinit u32 build_bimm(s32 arg)
static inline __uasminit u32 build_bimm(s32 arg)
{
if (arg > 0x1ffff || arg < -0x20000)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -209,7 +209,7 @@ static inline __cpuinit u32 build_bimm(s32 arg)
return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff);
}
static inline __cpuinit u32 build_jimm(u32 arg)
static inline __uasminit u32 build_jimm(u32 arg)
{
if (arg & ~((JIMM_MASK) << 2))
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -217,7 +217,7 @@ static inline __cpuinit u32 build_jimm(u32 arg)
return (arg >> 2) & JIMM_MASK;
}
static inline __cpuinit u32 build_scimm(u32 arg)
static inline __uasminit u32 build_scimm(u32 arg)
{
if (arg & ~SCIMM_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -225,7 +225,7 @@ static inline __cpuinit u32 build_scimm(u32 arg)
return (arg & SCIMM_MASK) << SCIMM_SH;
}
static inline __cpuinit u32 build_func(u32 arg)
static inline __uasminit u32 build_func(u32 arg)
{
if (arg & ~FUNC_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -233,7 +233,7 @@ static inline __cpuinit u32 build_func(u32 arg)
return arg & FUNC_MASK;
}
static inline __cpuinit u32 build_set(u32 arg)
static inline __uasminit u32 build_set(u32 arg)
{
if (arg & ~SET_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
@ -245,7 +245,7 @@ static inline __cpuinit u32 build_set(u32 arg)
* The order of opcode arguments is implicitly left to right,
* starting with RS and ending with FUNC or IMM.
*/
static void __cpuinit build_insn(u32 **buf, enum opcode opc, ...)
static void __uasminit build_insn(u32 **buf, enum opcode opc, ...)
{
struct insn *ip = NULL;
unsigned int i;
@ -295,67 +295,78 @@ static void __cpuinit build_insn(u32 **buf, enum opcode opc, ...)
Ip_u1u2u3(op) \
{ \
build_insn(buf, insn##op, a, b, c); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u2u1u3(op) \
Ip_u2u1u3(op) \
{ \
build_insn(buf, insn##op, b, a, c); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u3u1u2(op) \
Ip_u3u1u2(op) \
{ \
build_insn(buf, insn##op, b, c, a); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u1u2s3(op) \
Ip_u1u2s3(op) \
{ \
build_insn(buf, insn##op, a, b, c); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u2s3u1(op) \
Ip_u2s3u1(op) \
{ \
build_insn(buf, insn##op, c, a, b); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u2u1s3(op) \
Ip_u2u1s3(op) \
{ \
build_insn(buf, insn##op, b, a, c); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u2u1msbu3(op) \
Ip_u2u1msbu3(op) \
{ \
build_insn(buf, insn##op, b, a, c+d-1, c); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u1u2(op) \
Ip_u1u2(op) \
{ \
build_insn(buf, insn##op, a, b); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u1s2(op) \
Ip_u1s2(op) \
{ \
build_insn(buf, insn##op, a, b); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_u1(op) \
Ip_u1(op) \
{ \
build_insn(buf, insn##op, a); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
#define I_0(op) \
Ip_0(op) \
{ \
build_insn(buf, insn##op); \
}
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
I_u2u1s3(_addiu)
I_u3u1u2(_addu)
@ -417,14 +428,15 @@ I_u1u2s3(_bbit0);
I_u1u2s3(_bbit1);
/* Handle labels. */
void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
void __uasminit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
{
(*lab)->addr = addr;
(*lab)->lab = lid;
(*lab)++;
}
UASM_EXPORT_SYMBOL(uasm_build_label);
int __cpuinit uasm_in_compat_space_p(long addr)
int __uasminit uasm_in_compat_space_p(long addr)
{
/* Is this address in 32bit compat space? */
#ifdef CONFIG_64BIT
@ -433,8 +445,9 @@ int __cpuinit uasm_in_compat_space_p(long addr)
return 1;
#endif
}
UASM_EXPORT_SYMBOL(uasm_in_compat_space_p);
static int __cpuinit uasm_rel_highest(long val)
static int __uasminit uasm_rel_highest(long val)
{
#ifdef CONFIG_64BIT
return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
@ -443,7 +456,7 @@ static int __cpuinit uasm_rel_highest(long val)
#endif
}
static int __cpuinit uasm_rel_higher(long val)
static int __uasminit uasm_rel_higher(long val)
{
#ifdef CONFIG_64BIT
return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
@ -452,17 +465,19 @@ static int __cpuinit uasm_rel_higher(long val)
#endif
}
int __cpuinit uasm_rel_hi(long val)
int __uasminit uasm_rel_hi(long val)
{
return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
}
UASM_EXPORT_SYMBOL(uasm_rel_hi);
int __cpuinit uasm_rel_lo(long val)
int __uasminit uasm_rel_lo(long val)
{
return ((val & 0xffff) ^ 0x8000) - 0x8000;
}
UASM_EXPORT_SYMBOL(uasm_rel_lo);
void __cpuinit UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
void __uasminit UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
{
if (!uasm_in_compat_space_p(addr)) {
uasm_i_lui(buf, rs, uasm_rel_highest(addr));
@ -477,8 +492,9 @@ void __cpuinit UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
} else
uasm_i_lui(buf, rs, uasm_rel_hi(addr));
}
UASM_EXPORT_SYMBOL(UASM_i_LA_mostly);
void __cpuinit UASM_i_LA(u32 **buf, unsigned int rs, long addr)
void __uasminit UASM_i_LA(u32 **buf, unsigned int rs, long addr)
{
UASM_i_LA_mostly(buf, rs, addr);
if (uasm_rel_lo(addr)) {
@ -488,9 +504,10 @@ void __cpuinit UASM_i_LA(u32 **buf, unsigned int rs, long addr)
uasm_i_addiu(buf, rs, rs, uasm_rel_lo(addr));
}
}
UASM_EXPORT_SYMBOL(UASM_i_LA);
/* Handle relocations. */
void __cpuinit
void __uasminit
uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid)
{
(*rel)->addr = addr;
@ -498,8 +515,9 @@ uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid)
(*rel)->lab = lid;
(*rel)++;
}
UASM_EXPORT_SYMBOL(uasm_r_mips_pc16);
static inline void __cpuinit
static inline void __uasminit
__resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab)
{
long laddr = (long)lab->addr;
@ -516,7 +534,7 @@ __resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab)
}
}
void __cpuinit
void __uasminit
uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab)
{
struct uasm_label *l;
@ -526,24 +544,27 @@ uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab)
if (rel->lab == l->lab)
__resolve_relocs(rel, l);
}
UASM_EXPORT_SYMBOL(uasm_resolve_relocs);
void __cpuinit
void __uasminit
uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off)
{
for (; rel->lab != UASM_LABEL_INVALID; rel++)
if (rel->addr >= first && rel->addr < end)
rel->addr += off;
}
UASM_EXPORT_SYMBOL(uasm_move_relocs);
void __cpuinit
void __uasminit
uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off)
{
for (; lab->lab != UASM_LABEL_INVALID; lab++)
if (lab->addr >= first && lab->addr < end)
lab->addr += off;
}
UASM_EXPORT_SYMBOL(uasm_move_labels);
void __cpuinit
void __uasminit
uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first,
u32 *end, u32 *target)
{
@ -554,8 +575,9 @@ uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first,
uasm_move_relocs(rel, first, end, off);
uasm_move_labels(lab, first, end, off);
}
UASM_EXPORT_SYMBOL(uasm_copy_handler);
int __cpuinit uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
int __uasminit uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
{
for (; rel->lab != UASM_LABEL_INVALID; rel++) {
if (rel->addr == addr
@ -566,77 +588,88 @@ int __cpuinit uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
return 0;
}
UASM_EXPORT_SYMBOL(uasm_insn_has_bdelay);
/* Convenience functions for labeled branches. */
void __cpuinit
void __uasminit
uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bltz(p, reg, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bltz);
void __cpuinit
void __uasminit
uasm_il_b(u32 **p, struct uasm_reloc **r, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_b(p, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_b);
void __cpuinit
void __uasminit
uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_beqz(p, reg, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_beqz);
void __cpuinit
void __uasminit
uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_beqzl(p, reg, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_beqzl);
void __cpuinit
void __uasminit
uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
unsigned int reg2, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bne(p, reg1, reg2, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bne);
void __cpuinit
void __uasminit
uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bnez(p, reg, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bnez);
void __cpuinit
void __uasminit
uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bgezl(p, reg, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bgezl);
void __cpuinit
void __uasminit
uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bgez(p, reg, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bgez);
void __cpuinit
void __uasminit
uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
unsigned int bit, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bbit0(p, reg, bit, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bbit0);
void __cpuinit
void __uasminit
uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
unsigned int bit, int lid)
{
uasm_r_mips_pc16(r, *p, lid);
uasm_i_bbit1(p, reg, bit, 0);
}
UASM_EXPORT_SYMBOL(uasm_il_bbit1);