* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
#include "host-utils.h"
#include "helper.h"
#include "helper_regs.h"
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+#endif /* !defined(CONFIG_USER_ONLY) */
+
//#define DEBUG_OP
//#define DEBUG_EXCEPTIONS
//#define DEBUG_SOFTWARE_TLB
#endif
env->exception_index = exception;
env->error_code = error_code;
- cpu_loop_exit();
+ cpu_loop_exit(env);
}
void helper_raise_exception (uint32_t exception)
* do the load "by hand".
*/
ldl(addr);
- tb_invalidate_page_range(addr, addr + env->icache_line_size);
}
// XXX: to be tested
void helper_float_check_status (void)
{
-#ifdef CONFIG_SOFTFLOAT
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
(env->error_code & POWERPC_EXCP_FP)) {
/* Differred floating-point exception after target FPR update */
float_inexact_excp();
}
}
-#else
- if (env->exception_index == POWERPC_EXCP_PROGRAM &&
- (env->error_code & POWERPC_EXCP_FP)) {
- /* Differred floating-point exception after target FPR update */
- if (msr_fe0 != 0 || msr_fe1 != 0)
- helper_raise_exception_err(env->exception_index, env->error_code);
- }
-#endif
}
-#ifdef CONFIG_SOFTFLOAT
void helper_reset_fpstatus (void)
{
set_float_exception_flags(0, &env->fp_status);
}
-#endif
/* fadd - fadd. */
uint64_t helper_fadd (uint64_t arg1, uint64_t arg2)
/* 602 specific instructions */
/* mfrom is the most crazy instruction ever seen, imho ! */
/* Real implementation uses a ROM table. Do the same */
-/* Extremly decomposed:
+/* Extremely decomposed:
* -arg / 256
* return 256 * log10(10 + 1.0) + 0.5
*/
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24);
}
-#define MASKBITS 16 // Random value - to be fixed (implementation dependant)
+#define MASKBITS 16 // Random value - to be fixed (implementation dependent)
target_ulong helper_brinc (target_ulong arg1, target_ulong arg2)
{
uint32_t a, b, d, mask;
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 mmu_idx, void *retaddr)
+void tlb_fill(CPUState *env1, target_ulong addr, int is_write, int mmu_idx,
+ 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;
- ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
+ env = env1;
+ ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret != 0)) {
if (likely(retaddr)) {
/* now we have a real cpu fault */
int size;
entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb[entry].tlbe;
+ tlb = &env->tlb.tlbe[entry];
ret = tlb->EPN;
if (tlb->prot & PAGE_VALID) {
ret |= PPC4XX_TLBHI_V;
target_ulong ret;
entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb[entry].tlbe;
+ tlb = &env->tlb.tlbe[entry];
ret = tlb->RPN;
if (tlb->prot & PAGE_EXEC) {
ret |= PPC4XX_TLBLO_EX;
LOG_SWTLB("%s entry %d val " TARGET_FMT_lx "\n", __func__, (int)entry,
val);
entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb[entry].tlbe;
+ tlb = &env->tlb.tlbe[entry];
/* Invalidate previous TLB (if it's valid) */
if (tlb->prot & PAGE_VALID) {
end = tlb->EPN + tlb->size;
LOG_SWTLB("%s entry %i val " TARGET_FMT_lx "\n", __func__, (int)entry,
val);
entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb[entry].tlbe;
+ tlb = &env->tlb.tlbe[entry];
tlb->attr = val & PPC4XX_TLBLO_ATTR_MASK;
tlb->RPN = val & PPC4XX_TLBLO_RPN_MASK;
tlb->prot = PAGE_READ;
__func__, word, (int)entry, value);
do_flush_tlbs = 0;
entry &= 0x3F;
- tlb = &env->tlb[entry].tlbe;
+ tlb = &env->tlb.tlbe[entry];
switch (word) {
default:
/* Just here to please gcc */
int size;
entry &= 0x3F;
- tlb = &env->tlb[entry].tlbe;
+ tlb = &env->tlb.tlbe[entry];
switch (word) {
default:
/* Just here to please gcc */
return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF);
}
+/* PowerPC BookE 2.06 TLB management */
+
+static ppcmas_tlb_t *booke206_cur_tlb(CPUState *env)
+{
+ uint32_t tlbncfg = 0;
+ int esel = (env->spr[SPR_BOOKE_MAS0] & MAS0_ESEL_MASK) >> MAS0_ESEL_SHIFT;
+ int ea = (env->spr[SPR_BOOKE_MAS2] & MAS2_EPN_MASK);
+ int tlb;
+
+ tlb = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT;
+ tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlb];
+
+ if ((tlbncfg & TLBnCFG_HES) && (env->spr[SPR_BOOKE_MAS0] & MAS0_HES)) {
+ cpu_abort(env, "we don't support HES yet\n");
+ }
+
+ return booke206_get_tlbm(env, tlb, ea, esel);
+}
+
+void helper_booke_setpid(uint32_t pidn, target_ulong pid)
+{
+ env->spr[pidn] = pid;
+ /* changing PIDs mean we're in a different address space now */
+ tlb_flush(env, 1);
+}
+
+void helper_booke206_tlbwe(void)
+{
+ uint32_t tlbncfg, tlbn;
+ ppcmas_tlb_t *tlb;
+
+ switch (env->spr[SPR_BOOKE_MAS0] & MAS0_WQ_MASK) {
+ case MAS0_WQ_ALWAYS:
+ /* good to go, write that entry */
+ break;
+ case MAS0_WQ_COND:
+ /* XXX check if reserved */
+ if (0) {
+ return;
+ }
+ break;
+ case MAS0_WQ_CLR_RSRV:
+ /* XXX clear entry */
+ return;
+ default:
+ /* no idea what to do */
+ return;
+ }
+
+ if (((env->spr[SPR_BOOKE_MAS0] & MAS0_ATSEL) == MAS0_ATSEL_LRAT) &&
+ !msr_gs) {
+ /* XXX we don't support direct LRAT setting yet */
+ fprintf(stderr, "cpu: don't support LRAT setting yet\n");
+ return;
+ }
+
+ tlbn = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT;
+ tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlbn];
+
+ tlb = booke206_cur_tlb(env);
+
+ if (msr_gs) {
+ cpu_abort(env, "missing HV implementation\n");
+ }
+ tlb->mas7_3 = ((uint64_t)env->spr[SPR_BOOKE_MAS7] << 32) |
+ env->spr[SPR_BOOKE_MAS3];
+ tlb->mas1 = env->spr[SPR_BOOKE_MAS1];
+ /* XXX needs to change when supporting 64-bit e500 */
+ tlb->mas2 = env->spr[SPR_BOOKE_MAS2] & 0xffffffff;
+
+ if (!(tlbncfg & TLBnCFG_IPROT)) {
+ /* no IPROT supported by TLB */
+ tlb->mas1 &= ~MAS1_IPROT;
+ }
+
+ if (booke206_tlb_to_page_size(env, tlb) == TARGET_PAGE_SIZE) {
+ tlb_flush_page(env, tlb->mas2 & MAS2_EPN_MASK);
+ } else {
+ tlb_flush(env, 1);
+ }
+}
+
+static inline void booke206_tlb_to_mas(CPUState *env, ppcmas_tlb_t *tlb)
+{
+ int tlbn = booke206_tlbm_to_tlbn(env, tlb);
+ int way = booke206_tlbm_to_way(env, tlb);
+
+ env->spr[SPR_BOOKE_MAS0] = tlbn << MAS0_TLBSEL_SHIFT;
+ env->spr[SPR_BOOKE_MAS0] |= way << MAS0_ESEL_SHIFT;
+ env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
+
+ env->spr[SPR_BOOKE_MAS1] = tlb->mas1;
+ env->spr[SPR_BOOKE_MAS2] = tlb->mas2;
+ env->spr[SPR_BOOKE_MAS3] = tlb->mas7_3;
+ env->spr[SPR_BOOKE_MAS7] = tlb->mas7_3 >> 32;
+}
+
+void helper_booke206_tlbre(void)
+{
+ ppcmas_tlb_t *tlb = NULL;
+
+ tlb = booke206_cur_tlb(env);
+ booke206_tlb_to_mas(env, tlb);
+}
+
+void helper_booke206_tlbsx(target_ulong address)
+{
+ ppcmas_tlb_t *tlb = NULL;
+ int i, j;
+ target_phys_addr_t raddr;
+ uint32_t spid, sas;
+
+ spid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID_MASK) >> MAS6_SPID_SHIFT;
+ sas = env->spr[SPR_BOOKE_MAS6] & MAS6_SAS;
+
+ for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
+ int ways = booke206_tlb_ways(env, i);
+
+ for (j = 0; j < ways; j++) {
+ tlb = booke206_get_tlbm(env, i, address, j);
+
+ if (ppcmas_tlb_check(env, tlb, &raddr, address, spid)) {
+ continue;
+ }
+
+ if (sas != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) {
+ continue;
+ }
+
+ booke206_tlb_to_mas(env, tlb);
+ return;
+ }
+ }
+
+ /* no entry found, fill with defaults */
+ env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK;
+ env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK;
+ env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK;
+ env->spr[SPR_BOOKE_MAS3] = 0;
+ env->spr[SPR_BOOKE_MAS7] = 0;
+
+ if (env->spr[SPR_BOOKE_MAS6] & MAS6_SAS) {
+ env->spr[SPR_BOOKE_MAS1] |= MAS1_TS;
+ }
+
+ env->spr[SPR_BOOKE_MAS1] |= (env->spr[SPR_BOOKE_MAS6] >> 16)
+ << MAS1_TID_SHIFT;
+
+ /* next victim logic */
+ env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT;
+ env->last_way++;
+ env->last_way &= booke206_tlb_ways(env, 0) - 1;
+ env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
+}
+
+static inline void booke206_invalidate_ea_tlb(CPUState *env, int tlbn,
+ uint32_t ea)
+{
+ int i;
+ int ways = booke206_tlb_ways(env, tlbn);
+ target_ulong mask;
+
+ for (i = 0; i < ways; i++) {
+ ppcmas_tlb_t *tlb = booke206_get_tlbm(env, tlbn, ea, i);
+ mask = ~(booke206_tlb_to_page_size(env, tlb) - 1);
+ if (((tlb->mas2 & MAS2_EPN_MASK) == (ea & mask)) &&
+ !(tlb->mas1 & MAS1_IPROT)) {
+ tlb->mas1 &= ~MAS1_VALID;
+ }
+ }
+}
+
+void helper_booke206_tlbivax(target_ulong address)
+{
+ if (address & 0x4) {
+ /* flush all entries */
+ if (address & 0x8) {
+ /* flush all of TLB1 */
+ booke206_flush_tlb(env, BOOKE206_FLUSH_TLB1, 1);
+ } else {
+ /* flush all of TLB0 */
+ booke206_flush_tlb(env, BOOKE206_FLUSH_TLB0, 0);
+ }
+ return;
+ }
+
+ if (address & 0x8) {
+ /* flush TLB1 entries */
+ booke206_invalidate_ea_tlb(env, 1, address);
+ tlb_flush(env, 1);
+ } else {
+ /* flush TLB0 entries */
+ booke206_invalidate_ea_tlb(env, 0, address);
+ tlb_flush_page(env, address & MAS2_EPN_MASK);
+ }
+}
+
+void helper_booke206_tlbflush(uint32_t type)
+{
+ int flags = 0;
+
+ if (type & 2) {
+ flags |= BOOKE206_FLUSH_TLB1;
+ }
+
+ if (type & 4) {
+ flags |= BOOKE206_FLUSH_TLB0;
+ }
+
+ booke206_flush_tlb(env, flags, 1);
+}
+
#endif /* !CONFIG_USER_ONLY */
projects / qemu.git / blobdiff