diff options
author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-07-04 22:17:05 +0000 |
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committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-07-04 22:17:05 +0000 |
commit | fdabc366bd922d3029b42864ecf268103d8ca8e6 (patch) | |
tree | ba6acc1a6da59ed101291af14d15a1c09e78f1de /target-ppc/helper.c | |
parent | 2157fa0682e3b2a1cb0b4864e6f4b86f88b1fae2 (diff) |
correct split between helper.c and op_helper.c - moved some uops to op_helper.c (Jocelyn Mayer)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1504 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/helper.c')
-rw-r--r-- | target-ppc/helper.c | 103 |
1 files changed, 15 insertions, 88 deletions
diff --git a/target-ppc/helper.c b/target-ppc/helper.c index fbecb76d02..c9693c8b16 100644 --- a/target-ppc/helper.c +++ b/target-ppc/helper.c @@ -17,11 +17,21 @@ * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include "exec.h" +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <inttypes.h> +#include <signal.h> +#include <assert.h> + +#include "cpu.h" +#include "exec-all.h" //#define DEBUG_MMU //#define DEBUG_BATS //#define DEBUG_EXCEPTIONS +//#define FLUSH_ALL_TLBS /*****************************************************************************/ /* PowerPC MMU emulation */ @@ -394,92 +404,6 @@ target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr) } #endif -#if !defined(CONFIG_USER_ONLY) - -#define MMUSUFFIX _mmu -#define GETPC() (__builtin_return_address(0)) - -#define SHIFT 0 -#include "softmmu_template.h" - -#define SHIFT 1 -#include "softmmu_template.h" - -#define SHIFT 2 -#include "softmmu_template.h" - -#define SHIFT 3 -#include "softmmu_template.h" - -/* try to fill the TLB and return an exception if error. If retaddr is - NULL, it means that the function was called in C code (i.e. not - from generated code or from helper.c) */ -/* XXX: fix it to restore all registers */ -void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr) -{ - TranslationBlock *tb; - CPUState *saved_env; - unsigned long pc; - int ret; - - /* XXX: hack to restore env in all cases, even if not called from - generated code */ - saved_env = env; - env = cpu_single_env; -#if 0 - { - unsigned long tlb_addrr, tlb_addrw; - int index; - index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); - tlb_addrr = env->tlb_read[is_user][index].address; - tlb_addrw = env->tlb_write[is_user][index].address; - if (loglevel) { - fprintf(logfile, - "%s 1 %p %p idx=%d addr=0x%08lx tbl_addr=0x%08lx 0x%08lx " - "(0x%08lx 0x%08lx)\n", __func__, env, - &env->tlb_read[is_user][index], index, addr, - tlb_addrr, tlb_addrw, addr & TARGET_PAGE_MASK, - tlb_addrr & (TARGET_PAGE_MASK | TLB_INVALID_MASK)); - } - } -#endif - ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, is_user, 1); - if (ret) { - if (retaddr) { - /* now we have a real cpu fault */ - pc = (unsigned long)retaddr; - tb = tb_find_pc(pc); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, pc, NULL); - } - } - do_raise_exception_err(env->exception_index, env->error_code); - } -#if 0 - { - unsigned long tlb_addrr, tlb_addrw; - int index; - index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); - tlb_addrr = env->tlb_read[is_user][index].address; - tlb_addrw = env->tlb_write[is_user][index].address; - printf("%s 2 %p %p idx=%d addr=0x%08lx tbl_addr=0x%08lx 0x%08lx " - "(0x%08lx 0x%08lx)\n", __func__, env, - &env->tlb_read[is_user][index], index, addr, - tlb_addrr, tlb_addrw, addr & TARGET_PAGE_MASK, - tlb_addrr & (TARGET_PAGE_MASK | TLB_INVALID_MASK)); - } -#endif - env = saved_env; -} - -void cpu_ppc_init_mmu(CPUState *env) -{ - /* Nothing to do: all translation are disabled */ -} -#endif - /* Perform address translation */ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw, int is_user, int is_softmmu) @@ -576,13 +500,14 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw, error_code = EXCP_INVAL | EXCP_INVAL_INVAL; break; } + break; case -5: /* No match in segment table */ exception = EXCP_DSEG; error_code = 0; break; } - if (rw) + if (exception == EXCP_DSI && rw == 1) error_code |= 0x02000000; /* Store fault address */ env->spr[SPR_DAR] = address; @@ -1491,6 +1416,7 @@ void do_interrupt (CPUState *env) /* Jump to handler */ env->nip = excp; env->exception_index = EXCP_NONE; +#if 0 /* ensure that no TB jump will be modified as the program flow was changed */ #ifdef __sparc__ @@ -1498,6 +1424,7 @@ void do_interrupt (CPUState *env) #else T0 = 0; #endif +#endif env->interrupt_request |= CPU_INTERRUPT_EXITTB; } #endif /* !CONFIG_USER_ONLY */ |