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Allow use of SPE extension by all PowerPC targets,

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adding gprh registers to store GPR MSBs when GPRs are 32 bits.
Remove not-needed-anymore ppcemb-linux-user target.
Keep ppcemb-softmmu target, which provides 1kB pages support
  and 36 bits physical address space.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3628 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-11-12 01:56:18 +00:00
parent a73666f656
commit 3cd7d1ddbb
11 changed files with 149 additions and 86 deletions
Download patch file Download diff file Expand all files Collapse all files

57
target-ppc/cpu.h
View file

@ -24,46 +24,51 @@
#include <inttypes.h>
#if defined (TARGET_PPC64)
/* PowerPC 64 definitions */
typedef uint64_t ppc_gpr_t;
#define TARGET_GPR_BITS 64
#define TARGET_LONG_BITS 64
#define REGX "%016" PRIx64
#define TARGET_PAGE_BITS 12
#elif defined(TARGET_PPCEMB)
/* BookE have 36 bits physical address space */
#define TARGET_PHYS_ADDR_BITS 64
/* GPR are 64 bits: used by vector extension */
typedef uint64_t ppc_gpr_t;
#define TARGET_GPR_BITS 64
#define TARGET_LONG_BITS 32
#define REGX "%016" PRIx64
#if defined(CONFIG_USER_ONLY)
/* It looks like a lot of Linux programs assume page size
* is 4kB long. This is evil, but we have to deal with it...
*/
#define TARGET_PAGE_BITS 12
#else
/* Pages can be 1 kB small */
#define TARGET_PAGE_BITS 10
#endif
#else
#else /* defined (TARGET_PPC64) */
/* PowerPC 32 definitions */
#if (HOST_LONG_BITS >= 64)
/* When using 64 bits temporary registers,
* we can use 64 bits GPR with no extra cost
* It's even an optimization as it will prevent
* It's even an optimization as this will prevent
* the compiler to do unuseful masking in the micro-ops.
*/
typedef uint64_t ppc_gpr_t;
#define TARGET_GPR_BITS 64
#define REGX "%08" PRIx64
#else
#else /* (HOST_LONG_BITS >= 64) */
typedef uint32_t ppc_gpr_t;
#define TARGET_GPR_BITS 32
#define REGX "%08" PRIx32
#endif
#endif /* (HOST_LONG_BITS >= 64) */
#define TARGET_LONG_BITS 32
#if defined(TARGET_PPCEMB)
/* Specific definitions for PowerPC embedded */
/* BookE have 36 bits physical address space */
#define TARGET_PHYS_ADDR_BITS 64
#if defined(CONFIG_USER_ONLY)
/* It looks like a lot of Linux programs assume page size
* is 4kB long. This is evil, but we have to deal with it...
*/
#define TARGET_PAGE_BITS 12
#endif
#else /* defined(CONFIG_USER_ONLY) */
/* Pages can be 1 kB small */
#define TARGET_PAGE_BITS 10
#endif /* defined(CONFIG_USER_ONLY) */
#else /* defined(TARGET_PPCEMB) */
/* "standard" PowerPC 32 definitions */
#define TARGET_PAGE_BITS 12
#endif /* defined(TARGET_PPCEMB) */
#endif /* defined (TARGET_PPC64) */
#include "cpu-defs.h"
@ -166,14 +171,12 @@ enum {
POWERPC_EXCP_ITLB = 14, /* Instruction TLB error */
POWERPC_EXCP_DEBUG = 15, /* Debug interrupt */
/* Vectors 16 to 31 are reserved */
#if defined(TARGET_PPCEMB)
POWERPC_EXCP_SPEU = 32, /* SPE/embedded floating-point unavailable */
POWERPC_EXCP_EFPDI = 33, /* Embedded floating-point data interrupt */
POWERPC_EXCP_EFPRI = 34, /* Embedded floating-point round interrupt */
POWERPC_EXCP_EPERFM = 35, /* Embedded performance monitor interrupt */
POWERPC_EXCP_DOORI = 36, /* Embedded doorbell interrupt */
POWERPC_EXCP_DOORCI = 37, /* Embedded doorbell critical interrupt */
#endif /* defined(TARGET_PPCEMB) */
/* Vectors 38 to 63 are reserved */
/* Exceptions defined in the PowerPC server specification */
POWERPC_EXCP_RESET = 64, /* System reset exception */
@ -527,6 +530,10 @@ struct CPUPPCState {
/* general purpose registers */
ppc_gpr_t gpr[32];
#if TARGET_GPR_BITS < 64
/* Storage for GPR MSB, used by the SPE extension */
ppc_gpr_t gprh[32];
#endif
/* LR */
target_ulong lr;
/* CTR */
@ -597,12 +604,10 @@ struct CPUPPCState {
/* Altivec registers */
ppc_avr_t avr[32];
uint32_t vscr;
#if defined(TARGET_PPCEMB)
/* SPE registers */
ppc_gpr_t spe_acc;
float_status spe_status;
uint32_t spe_fscr;
#endif
/* Internal devices resources */
/* Time base and decrementer */