summaryrefslogtreecommitdiff
path: root/arch/mips/mm/page.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/mm/page.c')
-rw-r--r--arch/mips/mm/page.c224
1 files changed, 108 insertions, 116 deletions
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c
index c5578897a4fa..1df237bd4a72 100644
--- a/arch/mips/mm/page.c
+++ b/arch/mips/mm/page.c
@@ -20,13 +20,12 @@
#include <asm/inst.h>
#include <asm/io.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
#include <asm/prefetch.h>
#include <asm/bootinfo.h>
#include <asm/mipsregs.h>
#include <asm/mmu_context.h>
+#include <asm/regdef.h>
#include <asm/cpu.h>
-#include <asm/war.h>
#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
#include <asm/sibyte/sb1250.h>
@@ -36,19 +35,6 @@
#include <asm/uasm.h>
-/* Registers used in the assembled routines. */
-#define ZERO 0
-#define AT 2
-#define A0 4
-#define A1 5
-#define A2 6
-#define T0 8
-#define T1 9
-#define T2 10
-#define T3 11
-#define T9 25
-#define RA 31
-
/* Handle labels (which must be positive integers). */
enum label_id {
label_clear_nopref = 1,
@@ -104,18 +90,20 @@ static int cache_line_size;
static inline void
pg_addiu(u32 **buf, unsigned int reg1, unsigned int reg2, unsigned int off)
{
- if (cpu_has_64bit_gp_regs && DADDI_WAR && r4k_daddiu_bug()) {
+ if (cpu_has_64bit_gp_regs &&
+ IS_ENABLED(CONFIG_CPU_DADDI_WORKAROUNDS) &&
+ r4k_daddiu_bug()) {
if (off > 0x7fff) {
- uasm_i_lui(buf, T9, uasm_rel_hi(off));
- uasm_i_addiu(buf, T9, T9, uasm_rel_lo(off));
+ uasm_i_lui(buf, GPR_T9, uasm_rel_hi(off));
+ uasm_i_addiu(buf, GPR_T9, GPR_T9, uasm_rel_lo(off));
} else
- uasm_i_addiu(buf, T9, ZERO, off);
- uasm_i_daddu(buf, reg1, reg2, T9);
+ uasm_i_addiu(buf, GPR_T9, GPR_ZERO, off);
+ uasm_i_daddu(buf, reg1, reg2, GPR_T9);
} else {
if (off > 0x7fff) {
- uasm_i_lui(buf, T9, uasm_rel_hi(off));
- uasm_i_addiu(buf, T9, T9, uasm_rel_lo(off));
- UASM_i_ADDU(buf, reg1, reg2, T9);
+ uasm_i_lui(buf, GPR_T9, uasm_rel_hi(off));
+ uasm_i_addiu(buf, GPR_T9, GPR_T9, uasm_rel_lo(off));
+ UASM_i_ADDU(buf, reg1, reg2, GPR_T9);
} else
UASM_i_ADDIU(buf, reg1, reg2, off);
}
@@ -233,9 +221,9 @@ static void set_prefetch_parameters(void)
static void build_clear_store(u32 **buf, int off)
{
if (cpu_has_64bit_gp_regs || cpu_has_64bit_zero_reg) {
- uasm_i_sd(buf, ZERO, off, A0);
+ uasm_i_sd(buf, GPR_ZERO, off, GPR_A0);
} else {
- uasm_i_sw(buf, ZERO, off, A0);
+ uasm_i_sw(buf, GPR_ZERO, off, GPR_A0);
}
}
@@ -246,22 +234,24 @@ static inline void build_clear_pref(u32 **buf, int off)
if (pref_bias_clear_store) {
_uasm_i_pref(buf, pref_dst_mode, pref_bias_clear_store + off,
- A0);
+ GPR_A0);
} else if (cache_line_size == (half_clear_loop_size << 1)) {
if (cpu_has_cache_cdex_s) {
- uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
+ uasm_i_cache(buf, Create_Dirty_Excl_SD, off, GPR_A0);
} else if (cpu_has_cache_cdex_p) {
- if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
+ if (IS_ENABLED(CONFIG_WAR_R4600_V1_HIT_CACHEOP) &&
+ cpu_is_r4600_v1_x()) {
uasm_i_nop(buf);
uasm_i_nop(buf);
uasm_i_nop(buf);
uasm_i_nop(buf);
}
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lw(buf, ZERO, ZERO, AT);
+ if (IS_ENABLED(CONFIG_WAR_R4600_V2_HIT_CACHEOP) &&
+ cpu_is_r4600_v2_x())
+ uasm_i_lw(buf, GPR_ZERO, GPR_ZERO, GPR_AT);
- uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ uasm_i_cache(buf, Create_Dirty_Excl_D, off, GPR_A0);
}
}
}
@@ -299,12 +289,12 @@ void build_clear_page(void)
off = PAGE_SIZE - pref_bias_clear_store;
if (off > 0xffff || !pref_bias_clear_store)
- pg_addiu(&buf, A2, A0, off);
+ pg_addiu(&buf, GPR_A2, GPR_A0, off);
else
- uasm_i_ori(&buf, A2, A0, off);
+ uasm_i_ori(&buf, GPR_A2, GPR_A0, off);
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lui(&buf, AT, uasm_rel_hi(0xa0000000));
+ if (IS_ENABLED(CONFIG_WAR_R4600_V2_HIT_CACHEOP) && cpu_is_r4600_v2_x())
+ uasm_i_lui(&buf, GPR_AT, uasm_rel_hi(0xa0000000));
off = cache_line_size ? min(8, pref_bias_clear_store / cache_line_size)
* cache_line_size : 0;
@@ -318,36 +308,36 @@ void build_clear_page(void)
build_clear_store(&buf, off);
off += clear_word_size;
} while (off < half_clear_loop_size);
- pg_addiu(&buf, A0, A0, 2 * off);
+ pg_addiu(&buf, GPR_A0, GPR_A0, 2 * off);
off = -off;
do {
build_clear_pref(&buf, off);
if (off == -clear_word_size)
- uasm_il_bne(&buf, &r, A0, A2, label_clear_pref);
+ uasm_il_bne(&buf, &r, GPR_A0, GPR_A2, label_clear_pref);
build_clear_store(&buf, off);
off += clear_word_size;
} while (off < 0);
if (pref_bias_clear_store) {
- pg_addiu(&buf, A2, A0, pref_bias_clear_store);
+ pg_addiu(&buf, GPR_A2, GPR_A0, pref_bias_clear_store);
uasm_l_clear_nopref(&l, buf);
off = 0;
do {
build_clear_store(&buf, off);
off += clear_word_size;
} while (off < half_clear_loop_size);
- pg_addiu(&buf, A0, A0, 2 * off);
+ pg_addiu(&buf, GPR_A0, GPR_A0, 2 * off);
off = -off;
do {
if (off == -clear_word_size)
- uasm_il_bne(&buf, &r, A0, A2,
+ uasm_il_bne(&buf, &r, GPR_A0, GPR_A2,
label_clear_nopref);
build_clear_store(&buf, off);
off += clear_word_size;
} while (off < 0);
}
- uasm_i_jr(&buf, RA);
+ uasm_i_jr(&buf, GPR_RA);
uasm_i_nop(&buf);
BUG_ON(buf > &__clear_page_end);
@@ -367,18 +357,18 @@ void build_clear_page(void)
static void build_copy_load(u32 **buf, int reg, int off)
{
if (cpu_has_64bit_gp_regs) {
- uasm_i_ld(buf, reg, off, A1);
+ uasm_i_ld(buf, reg, off, GPR_A1);
} else {
- uasm_i_lw(buf, reg, off, A1);
+ uasm_i_lw(buf, reg, off, GPR_A1);
}
}
static void build_copy_store(u32 **buf, int reg, int off)
{
if (cpu_has_64bit_gp_regs) {
- uasm_i_sd(buf, reg, off, A0);
+ uasm_i_sd(buf, reg, off, GPR_A0);
} else {
- uasm_i_sw(buf, reg, off, A0);
+ uasm_i_sw(buf, reg, off, GPR_A0);
}
}
@@ -388,7 +378,7 @@ static inline void build_copy_load_pref(u32 **buf, int off)
return;
if (pref_bias_copy_load)
- _uasm_i_pref(buf, pref_src_mode, pref_bias_copy_load + off, A1);
+ _uasm_i_pref(buf, pref_src_mode, pref_bias_copy_load + off, GPR_A1);
}
static inline void build_copy_store_pref(u32 **buf, int off)
@@ -398,22 +388,24 @@ static inline void build_copy_store_pref(u32 **buf, int off)
if (pref_bias_copy_store) {
_uasm_i_pref(buf, pref_dst_mode, pref_bias_copy_store + off,
- A0);
+ GPR_A0);
} else if (cache_line_size == (half_copy_loop_size << 1)) {
if (cpu_has_cache_cdex_s) {
- uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
+ uasm_i_cache(buf, Create_Dirty_Excl_SD, off, GPR_A0);
} else if (cpu_has_cache_cdex_p) {
- if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
+ if (IS_ENABLED(CONFIG_WAR_R4600_V1_HIT_CACHEOP) &&
+ cpu_is_r4600_v1_x()) {
uasm_i_nop(buf);
uasm_i_nop(buf);
uasm_i_nop(buf);
uasm_i_nop(buf);
}
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lw(buf, ZERO, ZERO, AT);
+ if (IS_ENABLED(CONFIG_WAR_R4600_V2_HIT_CACHEOP) &&
+ cpu_is_r4600_v2_x())
+ uasm_i_lw(buf, GPR_ZERO, GPR_ZERO, GPR_AT);
- uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ uasm_i_cache(buf, Create_Dirty_Excl_D, off, GPR_A0);
}
}
}
@@ -450,12 +442,12 @@ void build_copy_page(void)
off = PAGE_SIZE - pref_bias_copy_load;
if (off > 0xffff || !pref_bias_copy_load)
- pg_addiu(&buf, A2, A0, off);
+ pg_addiu(&buf, GPR_A2, GPR_A0, off);
else
- uasm_i_ori(&buf, A2, A0, off);
+ uasm_i_ori(&buf, GPR_A2, GPR_A0, off);
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lui(&buf, AT, uasm_rel_hi(0xa0000000));
+ if (IS_ENABLED(CONFIG_WAR_R4600_V2_HIT_CACHEOP) && cpu_is_r4600_v2_x())
+ uasm_i_lui(&buf, GPR_AT, uasm_rel_hi(0xa0000000));
off = cache_line_size ? min(8, pref_bias_copy_load / cache_line_size) *
cache_line_size : 0;
@@ -472,126 +464,126 @@ void build_copy_page(void)
uasm_l_copy_pref_both(&l, buf);
do {
build_copy_load_pref(&buf, off);
- build_copy_load(&buf, T0, off);
+ build_copy_load(&buf, GPR_T0, off);
build_copy_load_pref(&buf, off + copy_word_size);
- build_copy_load(&buf, T1, off + copy_word_size);
+ build_copy_load(&buf, GPR_T1, off + copy_word_size);
build_copy_load_pref(&buf, off + 2 * copy_word_size);
- build_copy_load(&buf, T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T2, off + 2 * copy_word_size);
build_copy_load_pref(&buf, off + 3 * copy_word_size);
- build_copy_load(&buf, T3, off + 3 * copy_word_size);
+ build_copy_load(&buf, GPR_T3, off + 3 * copy_word_size);
build_copy_store_pref(&buf, off);
- build_copy_store(&buf, T0, off);
+ build_copy_store(&buf, GPR_T0, off);
build_copy_store_pref(&buf, off + copy_word_size);
- build_copy_store(&buf, T1, off + copy_word_size);
+ build_copy_store(&buf, GPR_T1, off + copy_word_size);
build_copy_store_pref(&buf, off + 2 * copy_word_size);
- build_copy_store(&buf, T2, off + 2 * copy_word_size);
+ build_copy_store(&buf, GPR_T2, off + 2 * copy_word_size);
build_copy_store_pref(&buf, off + 3 * copy_word_size);
- build_copy_store(&buf, T3, off + 3 * copy_word_size);
+ build_copy_store(&buf, GPR_T3, off + 3 * copy_word_size);
off += 4 * copy_word_size;
} while (off < half_copy_loop_size);
- pg_addiu(&buf, A1, A1, 2 * off);
- pg_addiu(&buf, A0, A0, 2 * off);
+ pg_addiu(&buf, GPR_A1, GPR_A1, 2 * off);
+ pg_addiu(&buf, GPR_A0, GPR_A0, 2 * off);
off = -off;
do {
build_copy_load_pref(&buf, off);
- build_copy_load(&buf, T0, off);
+ build_copy_load(&buf, GPR_T0, off);
build_copy_load_pref(&buf, off + copy_word_size);
- build_copy_load(&buf, T1, off + copy_word_size);
+ build_copy_load(&buf, GPR_T1, off + copy_word_size);
build_copy_load_pref(&buf, off + 2 * copy_word_size);
- build_copy_load(&buf, T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T2, off + 2 * copy_word_size);
build_copy_load_pref(&buf, off + 3 * copy_word_size);
- build_copy_load(&buf, T3, off + 3 * copy_word_size);
+ build_copy_load(&buf, GPR_T3, off + 3 * copy_word_size);
build_copy_store_pref(&buf, off);
- build_copy_store(&buf, T0, off);
+ build_copy_store(&buf, GPR_T0, off);
build_copy_store_pref(&buf, off + copy_word_size);
- build_copy_store(&buf, T1, off + copy_word_size);
+ build_copy_store(&buf, GPR_T1, off + copy_word_size);
build_copy_store_pref(&buf, off + 2 * copy_word_size);
- build_copy_store(&buf, T2, off + 2 * copy_word_size);
+ build_copy_store(&buf, GPR_T2, off + 2 * copy_word_size);
build_copy_store_pref(&buf, off + 3 * copy_word_size);
if (off == -(4 * copy_word_size))
- uasm_il_bne(&buf, &r, A2, A0, label_copy_pref_both);
- build_copy_store(&buf, T3, off + 3 * copy_word_size);
+ uasm_il_bne(&buf, &r, GPR_A2, GPR_A0, label_copy_pref_both);
+ build_copy_store(&buf, GPR_T3, off + 3 * copy_word_size);
off += 4 * copy_word_size;
} while (off < 0);
if (pref_bias_copy_load - pref_bias_copy_store) {
- pg_addiu(&buf, A2, A0,
+ pg_addiu(&buf, GPR_A2, GPR_A0,
pref_bias_copy_load - pref_bias_copy_store);
uasm_l_copy_pref_store(&l, buf);
off = 0;
do {
- build_copy_load(&buf, T0, off);
- build_copy_load(&buf, T1, off + copy_word_size);
- build_copy_load(&buf, T2, off + 2 * copy_word_size);
- build_copy_load(&buf, T3, off + 3 * copy_word_size);
+ build_copy_load(&buf, GPR_T0, off);
+ build_copy_load(&buf, GPR_T1, off + copy_word_size);
+ build_copy_load(&buf, GPR_T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T3, off + 3 * copy_word_size);
build_copy_store_pref(&buf, off);
- build_copy_store(&buf, T0, off);
+ build_copy_store(&buf, GPR_T0, off);
build_copy_store_pref(&buf, off + copy_word_size);
- build_copy_store(&buf, T1, off + copy_word_size);
+ build_copy_store(&buf, GPR_T1, off + copy_word_size);
build_copy_store_pref(&buf, off + 2 * copy_word_size);
- build_copy_store(&buf, T2, off + 2 * copy_word_size);
+ build_copy_store(&buf, GPR_T2, off + 2 * copy_word_size);
build_copy_store_pref(&buf, off + 3 * copy_word_size);
- build_copy_store(&buf, T3, off + 3 * copy_word_size);
+ build_copy_store(&buf, GPR_T3, off + 3 * copy_word_size);
off += 4 * copy_word_size;
} while (off < half_copy_loop_size);
- pg_addiu(&buf, A1, A1, 2 * off);
- pg_addiu(&buf, A0, A0, 2 * off);
+ pg_addiu(&buf, GPR_A1, GPR_A1, 2 * off);
+ pg_addiu(&buf, GPR_A0, GPR_A0, 2 * off);
off = -off;
do {
- build_copy_load(&buf, T0, off);
- build_copy_load(&buf, T1, off + copy_word_size);
- build_copy_load(&buf, T2, off + 2 * copy_word_size);
- build_copy_load(&buf, T3, off + 3 * copy_word_size);
+ build_copy_load(&buf, GPR_T0, off);
+ build_copy_load(&buf, GPR_T1, off + copy_word_size);
+ build_copy_load(&buf, GPR_T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T3, off + 3 * copy_word_size);
build_copy_store_pref(&buf, off);
- build_copy_store(&buf, T0, off);
+ build_copy_store(&buf, GPR_T0, off);
build_copy_store_pref(&buf, off + copy_word_size);
- build_copy_store(&buf, T1, off + copy_word_size);
+ build_copy_store(&buf, GPR_T1, off + copy_word_size);
build_copy_store_pref(&buf, off + 2 * copy_word_size);
- build_copy_store(&buf, T2, off + 2 * copy_word_size);
+ build_copy_store(&buf, GPR_T2, off + 2 * copy_word_size);
build_copy_store_pref(&buf, off + 3 * copy_word_size);
if (off == -(4 * copy_word_size))
- uasm_il_bne(&buf, &r, A2, A0,
+ uasm_il_bne(&buf, &r, GPR_A2, GPR_A0,
label_copy_pref_store);
- build_copy_store(&buf, T3, off + 3 * copy_word_size);
+ build_copy_store(&buf, GPR_T3, off + 3 * copy_word_size);
off += 4 * copy_word_size;
} while (off < 0);
}
if (pref_bias_copy_store) {
- pg_addiu(&buf, A2, A0, pref_bias_copy_store);
+ pg_addiu(&buf, GPR_A2, GPR_A0, pref_bias_copy_store);
uasm_l_copy_nopref(&l, buf);
off = 0;
do {
- build_copy_load(&buf, T0, off);
- build_copy_load(&buf, T1, off + copy_word_size);
- build_copy_load(&buf, T2, off + 2 * copy_word_size);
- build_copy_load(&buf, T3, off + 3 * copy_word_size);
- build_copy_store(&buf, T0, off);
- build_copy_store(&buf, T1, off + copy_word_size);
- build_copy_store(&buf, T2, off + 2 * copy_word_size);
- build_copy_store(&buf, T3, off + 3 * copy_word_size);
+ build_copy_load(&buf, GPR_T0, off);
+ build_copy_load(&buf, GPR_T1, off + copy_word_size);
+ build_copy_load(&buf, GPR_T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T3, off + 3 * copy_word_size);
+ build_copy_store(&buf, GPR_T0, off);
+ build_copy_store(&buf, GPR_T1, off + copy_word_size);
+ build_copy_store(&buf, GPR_T2, off + 2 * copy_word_size);
+ build_copy_store(&buf, GPR_T3, off + 3 * copy_word_size);
off += 4 * copy_word_size;
} while (off < half_copy_loop_size);
- pg_addiu(&buf, A1, A1, 2 * off);
- pg_addiu(&buf, A0, A0, 2 * off);
+ pg_addiu(&buf, GPR_A1, GPR_A1, 2 * off);
+ pg_addiu(&buf, GPR_A0, GPR_A0, 2 * off);
off = -off;
do {
- build_copy_load(&buf, T0, off);
- build_copy_load(&buf, T1, off + copy_word_size);
- build_copy_load(&buf, T2, off + 2 * copy_word_size);
- build_copy_load(&buf, T3, off + 3 * copy_word_size);
- build_copy_store(&buf, T0, off);
- build_copy_store(&buf, T1, off + copy_word_size);
- build_copy_store(&buf, T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T0, off);
+ build_copy_load(&buf, GPR_T1, off + copy_word_size);
+ build_copy_load(&buf, GPR_T2, off + 2 * copy_word_size);
+ build_copy_load(&buf, GPR_T3, off + 3 * copy_word_size);
+ build_copy_store(&buf, GPR_T0, off);
+ build_copy_store(&buf, GPR_T1, off + copy_word_size);
+ build_copy_store(&buf, GPR_T2, off + 2 * copy_word_size);
if (off == -(4 * copy_word_size))
- uasm_il_bne(&buf, &r, A2, A0,
+ uasm_il_bne(&buf, &r, GPR_A2, GPR_A0,
label_copy_nopref);
- build_copy_store(&buf, T3, off + 3 * copy_word_size);
+ build_copy_store(&buf, GPR_T3, off + 3 * copy_word_size);
off += 4 * copy_word_size;
} while (off < 0);
}
- uasm_i_jr(&buf, RA);
+ uasm_i_jr(&buf, GPR_RA);
uasm_i_nop(&buf);
BUG_ON(buf > &__copy_page_end);
generated by cgit (git 2.34.1) at 2024-05-09 19:21:57 +0000