haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Move mips CPU specific initialization to translate_init.c.

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2522 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-03-21 11:04:42 +00:00
parent 1698b74161
commit 3953d78687
3 changed files with 61 additions and 40 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
target-mips/mips-defs.h
View file

@ -15,43 +15,6 @@
#define MIPS_USES_R4K_TLB
#define MIPS_TLB_NB 16
#define MIPS_TLB_MAX 128
/* Define a implementation number of 1.
* Define a major version 1, minor version 0.
*/
#define MIPS_FCR0 ((0 << 16) | (1 << 8) | (1 << 4) | 0)
/* Have config1, is MIPS32R1, uses TLB, no virtual icache,
uncached coherency */
#define MIPS_CONFIG0_1 \
((1 << CP0C0_M) | (0x0 << CP0C0_K23) | (0x0 << CP0C0_KU) | \
(0x0 << CP0C0_AT) | (0x0 << CP0C0_AR) | (0x1 << CP0C0_MT) | \
(0x2 << CP0C0_K0))
#ifdef TARGET_WORDS_BIGENDIAN
#define MIPS_CONFIG0 (MIPS_CONFIG0_1 | (1 << CP0C0_BE))
#else
#define MIPS_CONFIG0 MIPS_CONFIG0_1
#endif
/* Have config2, 16 TLB entries, 64 sets Icache, 16 bytes Icache line,
2-way Icache, 64 sets Dcache, 16 bytes Dcache line, 2-way Dcache,
no coprocessor2 attached, no MDMX support attached,
no performance counters, watch registers present,
no code compression, EJTAG present, no FPU */
#define MIPS_CONFIG1 \
((1 << CP0C1_M) | ((MIPS_TLB_NB - 1) << CP0C1_MMU) | \
(0x0 << CP0C1_IS) | (0x3 << CP0C1_IL) | (0x1 << CP0C1_IA) | \
(0x0 << CP0C1_DS) | (0x3 << CP0C1_DL) | (0x1 << CP0C1_DA) | \
(0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) | \
(1 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) | \
(0 << CP0C1_FP))
/* Have config3, no tertiary/secondary caches implemented */
#define MIPS_CONFIG2 \
((1 << CP0C2_M))
/* No config4, no DSP ASE, no large physaddr,
no external interrupt controller, no vectored interupts,
no 1kb pages, no MT ASE, no SmartMIPS ASE, no trace logic */
#define MIPS_CONFIG3 \
((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) | \
(0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) | \
(0 << CP0C3_MT) | (0 << CP0C3_SM) | (0 << CP0C3_TL))
#ifdef MIPS_HAS_MIPS64
#define TARGET_LONG_BITS 64

3
target-mips/translate.c
View file

@ -5292,8 +5292,6 @@ void cpu_reset (CPUMIPSState *env)
env->CP0_Wired = 0;
/* SMP not implemented */
env->CP0_EBase = 0x80000000;
env->CP0_Config2 = MIPS_CONFIG2;
env->CP0_Config3 = MIPS_CONFIG3;
env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
env->CP0_WatchLo = 0;
env->hflags = MIPS_HFLAG_ERL;
@ -5305,7 +5303,6 @@ void cpu_reset (CPUMIPSState *env)
env->hflags |= MIPS_HFLAG_UM;
env->user_mode_only = 1;
#endif
env->fcr0 = MIPS_FCR0;
/* XXX some guesswork here, values are CPU specific */
env->SYNCI_Step = 16;
env->CCRes = 2;

61
target-mips/translate_init.c
View file

@ -19,11 +19,53 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* CPU / CPU family specific config register values. */
/* Have config1, is MIPS32R1, uses TLB, no virtual icache,
uncached coherency */
#define MIPS_CONFIG0 \
((1 << CP0C0_M) | (0x0 << CP0C0_K23) | (0x0 << CP0C0_KU) | \
(0x0 << CP0C0_AT) | (0x0 << CP0C0_AR) | (0x1 << CP0C0_MT) | \
(0x2 << CP0C0_K0))
/* Have config2, 16 TLB entries, 64 sets Icache, 16 bytes Icache line,
2-way Icache, 64 sets Dcache, 16 bytes Dcache line, 2-way Dcache,
no coprocessor2 attached, no MDMX support attached,
no performance counters, watch registers present,
no code compression, EJTAG present, no FPU */
#define MIPS_CONFIG1 \
((1 << CP0C1_M) | ((MIPS_TLB_NB - 1) << CP0C1_MMU) | \
(0x0 << CP0C1_IS) | (0x3 << CP0C1_IL) | (0x1 << CP0C1_IA) | \
(0x0 << CP0C1_DS) | (0x3 << CP0C1_DL) | (0x1 << CP0C1_DA) | \
(0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) | \
(1 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) | \
(0 << CP0C1_FP))
/* Have config3, no tertiary/secondary caches implemented */
#define MIPS_CONFIG2 \
((1 << CP0C2_M))
/* No config4, no DSP ASE, no large physaddr,
no external interrupt controller, no vectored interupts,
no 1kb pages, no MT ASE, no SmartMIPS ASE, no trace logic */
#define MIPS_CONFIG3 \
((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) | \
(0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) | \
(0 << CP0C3_MT) | (0 << CP0C3_SM) | (0 << CP0C3_TL))
/* Define a implementation number of 1.
Define a major version 1, minor version 0. */
#define MIPS_FCR0 ((0 << 16) | (1 << 8) | (1 << 4) | 0)
struct mips_def_t {
const unsigned char *name;
int32_t CP0_PRid;
int32_t CP0_Config0;
int32_t CP0_Config1;
int32_t CP0_Config2;
int32_t CP0_Config3;
int32_t CP1_fcr0;
};
/*****************************************************************************/
@ -36,18 +78,27 @@ static mips_def_t mips_defs[] =
.CP0_PRid = 0x00018000,
.CP0_Config0 = MIPS_CONFIG0,
.CP0_Config1 = MIPS_CONFIG1,
.CP0_Config2 = MIPS_CONFIG2,
.CP0_Config3 = MIPS_CONFIG3,
.CP1_fcr0 = MIPS_FCR0,
},
{
.name = "4KEc",
.CP0_PRid = 0x00018400,
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR),
.CP0_Config1 = MIPS_CONFIG1,
.CP0_Config2 = MIPS_CONFIG2,
.CP0_Config3 = MIPS_CONFIG3,
.CP1_fcr0 = MIPS_FCR0,
},
{
.name = "24Kf",
.CP0_PRid = 0x00019300,
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR),
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP),
.CP0_Config2 = MIPS_CONFIG2,
.CP0_Config3 = MIPS_CONFIG3,
.CP1_fcr0 = MIPS_FCR0,
},
#else
{
@ -55,6 +106,9 @@ static mips_def_t mips_defs[] =
.CP0_PRid = 0x00000400,
.CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT),
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP),
.CP0_Config2 = MIPS_CONFIG2,
.CP0_Config3 = MIPS_CONFIG3,
.CP1_fcr0 = MIPS_FCR0,
},
#endif
};
@ -91,7 +145,14 @@ int cpu_mips_register (CPUMIPSState *env, mips_def_t *def)
if (!def)
cpu_abort(env, "Unable to find MIPS CPU definition\n");
env->CP0_PRid = def->CP0_PRid;
#ifdef TARGET_WORDS_BIGENDIAN
env->CP0_Config0 = def->CP0_Config0 | (1 << CP0C0_BE);
#else
env->CP0_Config0 = def->CP0_Config0;
#endif
env->CP0_Config1 = def->CP0_Config1;
env->CP0_Config2 = def->CP0_Config2;
env->CP0_Config3 = def->CP0_Config3;
env->fcr0 = def->CP1_fcr0;
return 0;
}