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-rw-r--r--target-xtensa/Makefile.objs6
-rw-r--r--target-xtensa/cpu.h5
-rw-r--r--target-xtensa/helper.c61
-rw-r--r--target-xtensa/helper.h58
-rw-r--r--target-xtensa/op_helper.c203
-rw-r--r--target-xtensa/translate.c66
-rw-r--r--target-xtensa/xtensa-semi.c223
7 files changed, 436 insertions, 186 deletions
diff --git a/target-xtensa/Makefile.objs b/target-xtensa/Makefile.objs
new file mode 100644
index 0000000000..b30e5a8466
--- /dev/null
+++ b/target-xtensa/Makefile.objs
@@ -0,0 +1,6 @@
+obj-y += xtensa-semi.o
+obj-y += core-dc232b.o
+obj-y += core-dc233c.o
+obj-y += core-fsf.o
+obj-y += translate.o op_helper.o helper.o cpu.o
+obj-$(CONFIG_SOFTMMU) += machine.o
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
index 81f7833039..f7db116400 100644
--- a/target-xtensa/cpu.h
+++ b/target-xtensa/cpu.h
@@ -381,9 +381,12 @@ void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb,
uint32_t *vpn, uint32_t wi, uint32_t *ei);
int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb,
uint32_t *pwi, uint32_t *pei, uint8_t *pring);
+void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env,
+ xtensa_tlb_entry *entry, bool dtlb,
+ unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte);
void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb,
unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte);
-int xtensa_get_physical_addr(CPUXtensaState *env,
+int xtensa_get_physical_addr(CPUXtensaState *env, bool update_tlb,
uint32_t vaddr, int is_write, int mmu_idx,
uint32_t *paddr, uint32_t *page_size, unsigned *access);
void reset_mmu(CPUXtensaState *env);
diff --git a/target-xtensa/helper.c b/target-xtensa/helper.c
index 5e7e72e113..044ce18364 100644
--- a/target-xtensa/helper.c
+++ b/target-xtensa/helper.c
@@ -130,11 +130,11 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUXtensaState *env, target_ulong add
uint32_t page_size;
unsigned access;
- if (xtensa_get_physical_addr(env, addr, 0, 0,
+ if (xtensa_get_physical_addr(env, false, addr, 0, 0,
&paddr, &page_size, &access) == 0) {
return paddr;
}
- if (xtensa_get_physical_addr(env, addr, 2, 0,
+ if (xtensa_get_physical_addr(env, false, addr, 2, 0,
&paddr, &page_size, &access) == 0) {
return paddr;
}
@@ -443,30 +443,48 @@ static bool is_access_granted(unsigned access, int is_write)
}
}
-static int autorefill_mmu(CPUXtensaState *env, uint32_t vaddr, bool dtlb,
- uint32_t *wi, uint32_t *ei, uint8_t *ring);
+static int get_pte(CPUXtensaState *env, uint32_t vaddr, uint32_t *pte);
-static int get_physical_addr_mmu(CPUXtensaState *env,
+static int get_physical_addr_mmu(CPUXtensaState *env, bool update_tlb,
uint32_t vaddr, int is_write, int mmu_idx,
- uint32_t *paddr, uint32_t *page_size, unsigned *access)
+ uint32_t *paddr, uint32_t *page_size, unsigned *access,
+ bool may_lookup_pt)
{
bool dtlb = is_write != 2;
uint32_t wi;
uint32_t ei;
uint8_t ring;
+ uint32_t vpn;
+ uint32_t pte;
+ const xtensa_tlb_entry *entry = NULL;
+ xtensa_tlb_entry tmp_entry;
int ret = xtensa_tlb_lookup(env, vaddr, dtlb, &wi, &ei, &ring);
if ((ret == INST_TLB_MISS_CAUSE || ret == LOAD_STORE_TLB_MISS_CAUSE) &&
- (mmu_idx != 0 || ((vaddr ^ env->sregs[PTEVADDR]) & 0xffc00000)) &&
- autorefill_mmu(env, vaddr, dtlb, &wi, &ei, &ring) == 0) {
+ may_lookup_pt && get_pte(env, vaddr, &pte) == 0) {
+ ring = (pte >> 4) & 0x3;
+ wi = 0;
+ split_tlb_entry_spec_way(env, vaddr, dtlb, &vpn, wi, &ei);
+
+ if (update_tlb) {
+ wi = ++env->autorefill_idx & 0x3;
+ xtensa_tlb_set_entry(env, dtlb, wi, ei, vpn, pte);
+ env->sregs[EXCVADDR] = vaddr;
+ qemu_log("%s: autorefill(%08x): %08x -> %08x\n",
+ __func__, vaddr, vpn, pte);
+ } else {
+ xtensa_tlb_set_entry_mmu(env, &tmp_entry, dtlb, wi, ei, vpn, pte);
+ entry = &tmp_entry;
+ }
ret = 0;
}
if (ret != 0) {
return ret;
}
- const xtensa_tlb_entry *entry =
- xtensa_tlb_get_entry(env, dtlb, wi, ei);
+ if (entry == NULL) {
+ entry = xtensa_tlb_get_entry(env, dtlb, wi, ei);
+ }
if (ring < mmu_idx) {
return dtlb ?
@@ -489,30 +507,21 @@ static int get_physical_addr_mmu(CPUXtensaState *env,
return 0;
}
-static int autorefill_mmu(CPUXtensaState *env, uint32_t vaddr, bool dtlb,
- uint32_t *wi, uint32_t *ei, uint8_t *ring)
+static int get_pte(CPUXtensaState *env, uint32_t vaddr, uint32_t *pte)
{
uint32_t paddr;
uint32_t page_size;
unsigned access;
uint32_t pt_vaddr =
(env->sregs[PTEVADDR] | (vaddr >> 10)) & 0xfffffffc;
- int ret = get_physical_addr_mmu(env, pt_vaddr, 0, 0,
- &paddr, &page_size, &access);
+ int ret = get_physical_addr_mmu(env, false, pt_vaddr, 0, 0,
+ &paddr, &page_size, &access, false);
qemu_log("%s: trying autorefill(%08x) -> %08x\n", __func__,
vaddr, ret ? ~0 : paddr);
if (ret == 0) {
- uint32_t vpn;
- uint32_t pte = ldl_phys(paddr);
-
- *ring = (pte >> 4) & 0x3;
- *wi = (++env->autorefill_idx) & 0x3;
- split_tlb_entry_spec_way(env, vaddr, dtlb, &vpn, *wi, ei);
- xtensa_tlb_set_entry(env, dtlb, *wi, *ei, vpn, pte);
- qemu_log("%s: autorefill(%08x): %08x -> %08x\n",
- __func__, vaddr, vpn, pte);
+ *pte = ldl_phys(paddr);
}
return ret;
}
@@ -548,13 +557,13 @@ static int get_physical_addr_region(CPUXtensaState *env,
*
* \return 0 if ok, exception cause code otherwise
*/
-int xtensa_get_physical_addr(CPUXtensaState *env,
+int xtensa_get_physical_addr(CPUXtensaState *env, bool update_tlb,
uint32_t vaddr, int is_write, int mmu_idx,
uint32_t *paddr, uint32_t *page_size, unsigned *access)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) {
- return get_physical_addr_mmu(env, vaddr, is_write, mmu_idx,
- paddr, page_size, access);
+ return get_physical_addr_mmu(env, update_tlb,
+ vaddr, is_write, mmu_idx, paddr, page_size, access, true);
} else if (xtensa_option_bits_enabled(env->config,
XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) |
XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION))) {
diff --git a/target-xtensa/helper.h b/target-xtensa/helper.h
index 48a741e46d..152fec044d 100644
--- a/target-xtensa/helper.h
+++ b/target-xtensa/helper.h
@@ -1,39 +1,39 @@
#include "def-helper.h"
-DEF_HELPER_1(exception, void, i32)
-DEF_HELPER_2(exception_cause, void, i32, i32)
-DEF_HELPER_3(exception_cause_vaddr, void, i32, i32, i32)
-DEF_HELPER_2(debug_exception, void, i32, i32)
+DEF_HELPER_2(exception, noreturn, env, i32)
+DEF_HELPER_3(exception_cause, noreturn, env, i32, i32)
+DEF_HELPER_4(exception_cause_vaddr, noreturn, env, i32, i32, i32)
+DEF_HELPER_3(debug_exception, noreturn, env, i32, i32)
-DEF_HELPER_1(nsa, i32, i32)
-DEF_HELPER_1(nsau, i32, i32)
-DEF_HELPER_1(wsr_windowbase, void, i32)
-DEF_HELPER_3(entry, void, i32, i32, i32)
-DEF_HELPER_1(retw, i32, i32)
-DEF_HELPER_1(rotw, void, i32)
-DEF_HELPER_2(window_check, void, i32, i32)
-DEF_HELPER_0(restore_owb, void)
-DEF_HELPER_1(movsp, void, i32)
-DEF_HELPER_1(wsr_lbeg, void, i32)
-DEF_HELPER_1(wsr_lend, void, i32)
+DEF_HELPER_FLAGS_1(nsa, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32)
+DEF_HELPER_FLAGS_1(nsau, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32)
+DEF_HELPER_2(wsr_windowbase, void, env, i32)
+DEF_HELPER_4(entry, void, env, i32, i32, i32)
+DEF_HELPER_2(retw, i32, env, i32)
+DEF_HELPER_2(rotw, void, env, i32)
+DEF_HELPER_3(window_check, void, env, i32, i32)
+DEF_HELPER_1(restore_owb, void, env)
+DEF_HELPER_2(movsp, void, env, i32)
+DEF_HELPER_2(wsr_lbeg, void, env, i32)
+DEF_HELPER_2(wsr_lend, void, env, i32)
DEF_HELPER_1(simcall, void, env)
-DEF_HELPER_0(dump_state, void)
+DEF_HELPER_1(dump_state, void, env)
-DEF_HELPER_2(waiti, void, i32, i32)
-DEF_HELPER_2(timer_irq, void, i32, i32)
-DEF_HELPER_1(advance_ccount, void, i32)
+DEF_HELPER_3(waiti, void, env, i32, i32)
+DEF_HELPER_3(timer_irq, void, env, i32, i32)
+DEF_HELPER_2(advance_ccount, void, env, i32)
DEF_HELPER_1(check_interrupts, void, env)
-DEF_HELPER_1(wsr_rasid, void, i32)
-DEF_HELPER_2(rtlb0, i32, i32, i32)
-DEF_HELPER_2(rtlb1, i32, i32, i32)
-DEF_HELPER_2(itlb, void, i32, i32)
-DEF_HELPER_2(ptlb, i32, i32, i32)
-DEF_HELPER_3(wtlb, void, i32, i32, i32)
+DEF_HELPER_2(wsr_rasid, void, env, i32)
+DEF_HELPER_FLAGS_3(rtlb0, TCG_CALL_CONST | TCG_CALL_PURE, i32, env, i32, i32)
+DEF_HELPER_FLAGS_3(rtlb1, TCG_CALL_CONST | TCG_CALL_PURE, i32, env, i32, i32)
+DEF_HELPER_3(itlb, void, env, i32, i32)
+DEF_HELPER_3(ptlb, i32, env, i32, i32)
+DEF_HELPER_4(wtlb, void, env, i32, i32, i32)
-DEF_HELPER_1(wsr_ibreakenable, void, i32)
-DEF_HELPER_2(wsr_ibreaka, void, i32, i32)
-DEF_HELPER_2(wsr_dbreaka, void, i32, i32)
-DEF_HELPER_2(wsr_dbreakc, void, i32, i32)
+DEF_HELPER_2(wsr_ibreakenable, void, env, i32)
+DEF_HELPER_3(wsr_ibreaka, void, env, i32, i32)
+DEF_HELPER_3(wsr_dbreaka, void, env, i32, i32)
+DEF_HELPER_3(wsr_dbreakc, void, env, i32, i32)
#include "def-helper.h"
diff --git a/target-xtensa/op_helper.c b/target-xtensa/op_helper.c
index 364dc19bc0..2659c0e00f 100644
--- a/target-xtensa/op_helper.c
+++ b/target-xtensa/op_helper.c
@@ -26,12 +26,11 @@
*/
#include "cpu.h"
-#include "dyngen-exec.h"
#include "helper.h"
#include "host-utils.h"
-static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
- uintptr_t retaddr);
+static void do_unaligned_access(CPUXtensaState *env,
+ target_ulong addr, int is_write, int is_user, uintptr_t retaddr);
#define ALIGNED_ONLY
#define MMUSUFFIX _mmu
@@ -48,7 +47,7 @@ static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
#define SHIFT 3
#include "softmmu_template.h"
-static void do_restore_state(uintptr_t pc)
+static void do_restore_state(CPUXtensaState *env, uintptr_t pc)
{
TranslationBlock *tb;
@@ -58,44 +57,38 @@ static void do_restore_state(uintptr_t pc)
}
}
-static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
- uintptr_t retaddr)
+static void do_unaligned_access(CPUXtensaState *env,
+ target_ulong addr, int is_write, int is_user, uintptr_t retaddr)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_UNALIGNED_EXCEPTION) &&
!xtensa_option_enabled(env->config, XTENSA_OPTION_HW_ALIGNMENT)) {
- do_restore_state(retaddr);
- HELPER(exception_cause_vaddr)(
+ do_restore_state(env, retaddr);
+ HELPER(exception_cause_vaddr)(env,
env->pc, LOAD_STORE_ALIGNMENT_CAUSE, addr);
}
}
-void tlb_fill(CPUXtensaState *env1, target_ulong vaddr, int is_write, int mmu_idx,
- uintptr_t retaddr)
+void tlb_fill(CPUXtensaState *env,
+ target_ulong vaddr, int is_write, int mmu_idx, uintptr_t retaddr)
{
- CPUXtensaState *saved_env = env;
-
- env = env1;
- {
- uint32_t paddr;
- uint32_t page_size;
- unsigned access;
- int ret = xtensa_get_physical_addr(env, vaddr, is_write, mmu_idx,
- &paddr, &page_size, &access);
+ uint32_t paddr;
+ uint32_t page_size;
+ unsigned access;
+ int ret = xtensa_get_physical_addr(env, true, vaddr, is_write, mmu_idx,
+ &paddr, &page_size, &access);
- qemu_log("%s(%08x, %d, %d) -> %08x, ret = %d\n", __func__,
- vaddr, is_write, mmu_idx, paddr, ret);
+ qemu_log("%s(%08x, %d, %d) -> %08x, ret = %d\n", __func__,
+ vaddr, is_write, mmu_idx, paddr, ret);
- if (ret == 0) {
- tlb_set_page(env,
- vaddr & TARGET_PAGE_MASK,
- paddr & TARGET_PAGE_MASK,
- access, mmu_idx, page_size);
- } else {
- do_restore_state(retaddr);
- HELPER(exception_cause_vaddr)(env->pc, ret, vaddr);
- }
+ if (ret == 0) {
+ tlb_set_page(env,
+ vaddr & TARGET_PAGE_MASK,
+ paddr & TARGET_PAGE_MASK,
+ access, mmu_idx, page_size);
+ } else {
+ do_restore_state(env, retaddr);
+ HELPER(exception_cause_vaddr)(env, env->pc, ret, vaddr);
}
- env = saved_env;
}
static void tb_invalidate_virtual_addr(CPUXtensaState *env, uint32_t vaddr)
@@ -103,20 +96,20 @@ static void tb_invalidate_virtual_addr(CPUXtensaState *env, uint32_t vaddr)
uint32_t paddr;
uint32_t page_size;
unsigned access;
- int ret = xtensa_get_physical_addr(env, vaddr, 2, 0,
+ int ret = xtensa_get_physical_addr(env, false, vaddr, 2, 0,
&paddr, &page_size, &access);
if (ret == 0) {
tb_invalidate_phys_addr(paddr);
}
}
-void HELPER(exception)(uint32_t excp)
+void HELPER(exception)(CPUXtensaState *env, uint32_t excp)
{
env->exception_index = excp;
cpu_loop_exit(env);
}
-void HELPER(exception_cause)(uint32_t pc, uint32_t cause)
+void HELPER(exception_cause)(CPUXtensaState *env, uint32_t pc, uint32_t cause)
{
uint32_t vector;
@@ -136,24 +129,24 @@ void HELPER(exception_cause)(uint32_t pc, uint32_t cause)
env->sregs[EXCCAUSE] = cause;
env->sregs[PS] |= PS_EXCM;
- HELPER(exception)(vector);
+ HELPER(exception)(env, vector);
}
-void HELPER(exception_cause_vaddr)(uint32_t pc, uint32_t cause, uint32_t vaddr)
+void HELPER(exception_cause_vaddr)(CPUXtensaState *env,
+ uint32_t pc, uint32_t cause, uint32_t vaddr)
{
env->sregs[EXCVADDR] = vaddr;
- HELPER(exception_cause)(pc, cause);
+ HELPER(exception_cause)(env, pc, cause);
}
-void debug_exception_env(CPUXtensaState *new_env, uint32_t cause)
+void debug_exception_env(CPUXtensaState *env, uint32_t cause)
{
- if (xtensa_get_cintlevel(new_env) < new_env->config->debug_level) {
- env = new_env;
- HELPER(debug_exception)(env->pc, cause);
+ if (xtensa_get_cintlevel(env) < env->config->debug_level) {
+ HELPER(debug_exception)(env, env->pc, cause);
}
}
-void HELPER(debug_exception)(uint32_t pc, uint32_t cause)
+void HELPER(debug_exception)(CPUXtensaState *env, uint32_t pc, uint32_t cause)
{
unsigned level = env->config->debug_level;
@@ -163,7 +156,7 @@ void HELPER(debug_exception)(uint32_t pc, uint32_t cause)
env->sregs[EPS2 + level - 2] = env->sregs[PS];
env->sregs[PS] = (env->sregs[PS] & ~PS_INTLEVEL) | PS_EXCM |
(level << PS_INTLEVEL_SHIFT);
- HELPER(exception)(EXC_DEBUG);
+ HELPER(exception)(env, EXC_DEBUG);
}
uint32_t HELPER(nsa)(uint32_t v)
@@ -232,39 +225,39 @@ void xtensa_sync_phys_from_window(CPUXtensaState *env)
copy_phys_from_window(env, env->sregs[WINDOW_BASE] * 4, 0, 16);
}
-static void rotate_window_abs(uint32_t position)
+static void rotate_window_abs(CPUXtensaState *env, uint32_t position)
{
xtensa_sync_phys_from_window(env);
env->sregs[WINDOW_BASE] = windowbase_bound(position, env);
xtensa_sync_window_from_phys(env);
}
-static void rotate_window(uint32_t delta)
+static void rotate_window(CPUXtensaState *env, uint32_t delta)
{
- rotate_window_abs(env->sregs[WINDOW_BASE] + delta);
+ rotate_window_abs(env, env->sregs[WINDOW_BASE] + delta);
}
-void HELPER(wsr_windowbase)(uint32_t v)
+void HELPER(wsr_windowbase)(CPUXtensaState *env, uint32_t v)
{
- rotate_window_abs(v);
+ rotate_window_abs(env, v);
}
-void HELPER(entry)(uint32_t pc, uint32_t s, uint32_t imm)
+void HELPER(entry)(CPUXtensaState *env, uint32_t pc, uint32_t s, uint32_t imm)
{
int callinc = (env->sregs[PS] & PS_CALLINC) >> PS_CALLINC_SHIFT;
if (s > 3 || ((env->sregs[PS] & (PS_WOE | PS_EXCM)) ^ PS_WOE) != 0) {
qemu_log("Illegal entry instruction(pc = %08x), PS = %08x\n",
pc, env->sregs[PS]);
- HELPER(exception_cause)(pc, ILLEGAL_INSTRUCTION_CAUSE);
+ HELPER(exception_cause)(env, pc, ILLEGAL_INSTRUCTION_CAUSE);
} else {
env->regs[(callinc << 2) | (s & 3)] = env->regs[s] - (imm << 3);
- rotate_window(callinc);
+ rotate_window(env, callinc);
env->sregs[WINDOW_START] |=
windowstart_bit(env->sregs[WINDOW_BASE], env);
}
}
-void HELPER(window_check)(uint32_t pc, uint32_t w)
+void HELPER(window_check)(CPUXtensaState *env, uint32_t pc, uint32_t w)
{
uint32_t windowbase = windowbase_bound(env->sregs[WINDOW_BASE], env);
uint32_t windowstart = env->sregs[WINDOW_START];
@@ -284,21 +277,21 @@ void HELPER(window_check)(uint32_t pc, uint32_t w)
}
m = windowbase_bound(windowbase + n, env);
- rotate_window(n);
+ rotate_window(env, n);
env->sregs[PS] = (env->sregs[PS] & ~PS_OWB) |
(windowbase << PS_OWB_SHIFT) | PS_EXCM;
env->sregs[EPC1] = env->pc = pc;
if (windowstart & windowstart_bit(m + 1, env)) {
- HELPER(exception)(EXC_WINDOW_OVERFLOW4);
+ HELPER(exception)(env, EXC_WINDOW_OVERFLOW4);
} else if (windowstart & windowstart_bit(m + 2, env)) {
- HELPER(exception)(EXC_WINDOW_OVERFLOW8);
+ HELPER(exception)(env, EXC_WINDOW_OVERFLOW8);
} else {
- HELPER(exception)(EXC_WINDOW_OVERFLOW12);
+ HELPER(exception)(env, EXC_WINDOW_OVERFLOW12);
}
}
-uint32_t HELPER(retw)(uint32_t pc)
+uint32_t HELPER(retw)(CPUXtensaState *env, uint32_t pc)
{
int n = (env->regs[0] >> 30) & 0x3;
int m = 0;
@@ -319,13 +312,13 @@ uint32_t HELPER(retw)(uint32_t pc)
qemu_log("Illegal retw instruction(pc = %08x), "
"PS = %08x, m = %d, n = %d\n",
pc, env->sregs[PS], m, n);
- HELPER(exception_cause)(pc, ILLEGAL_INSTRUCTION_CAUSE);
+ HELPER(exception_cause)(env, pc, ILLEGAL_INSTRUCTION_CAUSE);
} else {
int owb = windowbase;
ret_pc = (pc & 0xc0000000) | (env->regs[0] & 0x3fffffff);
- rotate_window(-n);
+ rotate_window(env, -n);
if (windowstart & windowstart_bit(env->sregs[WINDOW_BASE], env)) {
env->sregs[WINDOW_START] &= ~windowstart_bit(owb, env);
} else {
@@ -335,38 +328,38 @@ uint32_t HELPER(retw)(uint32_t pc)
env->sregs[EPC1] = env->pc = pc;
if (n == 1) {
- HELPER(exception)(EXC_WINDOW_UNDERFLOW4);
+ HELPER(exception)(env, EXC_WINDOW_UNDERFLOW4);
} else if (n == 2) {
- HELPER(exception)(EXC_WINDOW_UNDERFLOW8);
+ HELPER(exception)(env, EXC_WINDOW_UNDERFLOW8);
} else if (n == 3) {
- HELPER(exception)(EXC_WINDOW_UNDERFLOW12);
+ HELPER(exception)(env, EXC_WINDOW_UNDERFLOW12);
}
}
}
return ret_pc;
}
-void HELPER(rotw)(uint32_t imm4)
+void HELPER(rotw)(CPUXtensaState *env, uint32_t imm4)
{
- rotate_window(imm4);
+ rotate_window(env, imm4);
}
-void HELPER(restore_owb)(void)
+void HELPER(restore_owb)(CPUXtensaState *env)
{
- rotate_window_abs((env->sregs[PS] & PS_OWB) >> PS_OWB_SHIFT);
+ rotate_window_abs(env, (env->sregs[PS] & PS_OWB) >> PS_OWB_SHIFT);
}
-void HELPER(movsp)(uint32_t pc)
+void HELPER(movsp)(CPUXtensaState *env, uint32_t pc)
{
if ((env->sregs[WINDOW_START] &
(windowstart_bit(env->sregs[WINDOW_BASE] - 3, env) |
windowstart_bit(env->sregs[WINDOW_BASE] - 2, env) |
windowstart_bit(env->sregs[WINDOW_BASE] - 1, env))) == 0) {
- HELPER(exception_cause)(pc, ALLOCA_CAUSE);
+ HELPER(exception_cause)(env, pc, ALLOCA_CAUSE);
}
}
-void HELPER(wsr_lbeg)(uint32_t v)
+void HELPER(wsr_lbeg)(CPUXtensaState *env, uint32_t v)
{
if (env->sregs[LBEG] != v) {
tb_invalidate_virtual_addr(env, env->sregs[LEND] - 1);
@@ -374,7 +367,7 @@ void HELPER(wsr_lbeg)(uint32_t v)
}
}
-void HELPER(wsr_lend)(uint32_t v)
+void HELPER(wsr_lend)(CPUXtensaState *env, uint32_t v)
{
if (env->sregs[LEND] != v) {
tb_invalidate_virtual_addr(env, env->sregs[LEND] - 1);
@@ -383,12 +376,12 @@ void HELPER(wsr_lend)(uint32_t v)
}
}
-void HELPER(dump_state)(void)
+void HELPER(dump_state)(CPUXtensaState *env)
{
cpu_dump_state(env, stderr, fprintf, 0);
}
-void HELPER(waiti)(uint32_t pc, uint32_t intlevel)
+void HELPER(waiti)(CPUXtensaState *env, uint32_t pc, uint32_t intlevel)
{
env->pc = pc;
env->sregs[PS] = (env->sregs[PS] & ~PS_INTLEVEL) |
@@ -404,15 +397,15 @@ void HELPER(waiti)(uint32_t pc, uint32_t intlevel)
if (xtensa_option_enabled(env->config, XTENSA_OPTION_TIMER_INTERRUPT)) {
xtensa_rearm_ccompare_timer(env);
}
- HELPER(exception)(EXCP_HLT);
+ HELPER(exception)(env, EXCP_HLT);
}
-void HELPER(timer_irq)(uint32_t id, uint32_t active)
+void HELPER(timer_irq)(CPUXtensaState *env, uint32_t id, uint32_t active)
{
xtensa_timer_irq(env, id, active);
}
-void HELPER(advance_ccount)(uint32_t d)
+void HELPER(advance_ccount)(CPUXtensaState *env, uint32_t d)
{
xtensa_advance_ccount(env, d);
}
@@ -422,7 +415,7 @@ void HELPER(check_interrupts)(CPUXtensaState *env)
check_interrupts(env);
}
-void HELPER(wsr_rasid)(uint32_t v)
+void HELPER(wsr_rasid)(CPUXtensaState *env, uint32_t v)
{
v = (v & 0xffffff00) | 0x1;
if (v != env->sregs[RASID]) {
@@ -574,7 +567,7 @@ void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb,
* Split TLB address into TLB way, entry index and VPN (with index).
* See ISA, 4.6.5.5 - 4.6.5.8 for the TLB addressing format
*/
-static void split_tlb_entry_spec(uint32_t v, bool dtlb,
+static void split_tlb_entry_spec(CPUXtensaState *env, uint32_t v, bool dtlb,
uint32_t *vpn, uint32_t *wi, uint32_t *ei)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) {
@@ -587,41 +580,42 @@ static void split_tlb_entry_spec(uint32_t v, bool dtlb,
}
}
-static xtensa_tlb_entry *get_tlb_entry(uint32_t v, bool dtlb, uint32_t *pwi)
+static xtensa_tlb_entry *get_tlb_entry(CPUXtensaState *env,
+ uint32_t v, bool dtlb, uint32_t *pwi)
{
uint32_t vpn;
uint32_t wi;
uint32_t ei;
- split_tlb_entry_spec(v, dtlb, &vpn, &wi, &ei);
+ split_tlb_entry_spec(env, v, dtlb, &vpn, &wi, &ei);
if (pwi) {
*pwi = wi;
}
return xtensa_tlb_get_entry(env, dtlb, wi, ei);
}
-uint32_t HELPER(rtlb0)(uint32_t v, uint32_t dtlb)
+uint32_t HELPER(rtlb0)(CPUXtensaState *env, uint32_t v, uint32_t dtlb)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) {
uint32_t wi;
- const xtensa_tlb_entry *entry = get_tlb_entry(v, dtlb, &wi);
+ const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi);
return (entry->vaddr & get_vpn_mask(env, dtlb, wi)) | entry->asid;
} else {
return v & REGION_PAGE_MASK;
}
}
-uint32_t HELPER(rtlb1)(uint32_t v, uint32_t dtlb)
+uint32_t HELPER(rtlb1)(CPUXtensaState *env, uint32_t v, uint32_t dtlb)
{
- const xtensa_tlb_entry *entry = get_tlb_entry(v, dtlb, NULL);
+ const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, NULL);
return entry->paddr | entry->attr;
}
-void HELPER(itlb)(uint32_t v, uint32_t dtlb)
+void HELPER(itlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) {
uint32_t wi;
- xtensa_tlb_entry *entry = get_tlb_entry(v, dtlb, &wi);
+ xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi);
if (entry->variable && entry->asid) {
tlb_flush_page(env, entry->vaddr);
entry->asid = 0;
@@ -629,7 +623,7 @@ void HELPER(itlb)(uint32_t v, uint32_t dtlb)
}
}
-uint32_t HELPER(ptlb)(uint32_t v, uint32_t dtlb)
+uint32_t HELPER(ptlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) {
uint32_t wi;
@@ -646,7 +640,7 @@ uint32_t HELPER(ptlb)(uint32_t v, uint32_t dtlb)
case INST_TLB_MULTI_HIT_CAUSE:
case LOAD_STORE_TLB_MULTI_HIT_CAUSE:
- HELPER(exception_cause_vaddr)(env->pc, res, v);
+ HELPER(exception_cause_vaddr)(env, env->pc, res, v);
break;
}
return 0;
@@ -655,6 +649,16 @@ uint32_t HELPER(ptlb)(uint32_t v, uint32_t dtlb)
}
}
+void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env,
+ xtensa_tlb_entry *entry, bool dtlb,
+ unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte)
+{
+ entry->vaddr = vpn;
+ entry->paddr = pte & xtensa_tlb_get_addr_mask(env, dtlb, wi);
+ entry->asid = (env->sregs[RASID] >> ((pte >> 1) & 0x18)) & 0xff;
+ entry->attr = pte & 0xf;
+}
+
void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb,
unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte)
{
@@ -665,10 +669,8 @@ void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb,
if (entry->asid) {
tlb_flush_page(env, entry->vaddr);
}
- entry->vaddr = vpn;
- entry->paddr = pte & xtensa_tlb_get_addr_mask(env, dtlb, wi);
- entry->asid = (env->sregs[RASID] >> ((pte >> 1) & 0x18)) & 0xff;
- entry->attr = pte & 0xf;
+ xtensa_tlb_set_entry_mmu(env, entry, dtlb, wi, ei, vpn, pte);
+ tlb_flush_page(env, entry->vaddr);
} else {
qemu_log("%s %d, %d, %d trying to set immutable entry\n",
__func__, dtlb, wi, ei);
@@ -683,17 +685,17 @@ void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb,
}
}
-void HELPER(wtlb)(uint32_t p, uint32_t v, uint32_t dtlb)
+void HELPER(wtlb)(CPUXtensaState *env, uint32_t p, uint32_t v, uint32_t dtlb)
{
uint32_t vpn;
uint32_t wi;
uint32_t ei;
- split_tlb_entry_spec(v, dtlb, &vpn, &wi, &ei);
+ split_tlb_entry_spec(env, v, dtlb, &vpn, &wi, &ei);
xtensa_tlb_set_entry(env, dtlb, wi, ei, vpn, p);
}
-void HELPER(wsr_ibreakenable)(uint32_t v)
+void HELPER(wsr_ibreakenable)(CPUXtensaState *env, uint32_t v)
{
uint32_t change = v ^ env->sregs[IBREAKENABLE];
unsigned i;
@@ -706,7 +708,7 @@ void HELPER(wsr_ibreakenable)(uint32_t v)
env->sregs[IBREAKENABLE] = v & ((1 << env->config->nibreak) - 1);
}
-void HELPER(wsr_ibreaka)(uint32_t i, uint32_t v)
+void HELPER(wsr_ibreaka)(CPUXtensaState *env, uint32_t i, uint32_t v)
{
if (env->sregs[IBREAKENABLE] & (1 << i) && env->sregs[IBREAKA + i] != v) {
tb_invalidate_virtual_addr(env, env->sregs[IBREAKA + i]);
@@ -715,7 +717,8 @@ void HELPER(wsr_ibreaka)(uint32_t i, uint32_t v)
env->sregs[IBREAKA + i] = v;
}
-static void set_dbreak(unsigned i, uint32_t dbreaka, uint32_t dbreakc)
+static void set_dbreak(CPUXtensaState *env, unsigned i, uint32_t dbreaka,
+ uint32_t dbreakc)
{
int flags = BP_CPU | BP_STOP_BEFORE_ACCESS;
uint32_t mask = dbreakc | ~DBREAKC_MASK;
@@ -743,22 +746,22 @@ static void set_dbreak(unsigned i, uint32_t dbreaka, uint32_t dbreakc)
}
}
-void HELPER(wsr_dbreaka)(uint32_t i, uint32_t v)
+void HELPER(wsr_dbreaka)(CPUXtensaState *env, uint32_t i, uint32_t v)
{
uint32_t dbreakc = env->sregs[DBREAKC + i];
if ((dbreakc & DBREAKC_SB_LB) &&
env->sregs[DBREAKA + i] != v) {
- set_dbreak(i, v, dbreakc);
+ set_dbreak(env, i, v, dbreakc);
}
env->sregs[DBREAKA + i] = v;
}
-void HELPER(wsr_dbreakc)(uint32_t i, uint32_t v)
+void HELPER(wsr_dbreakc)(CPUXtensaState *env, uint32_t i, uint32_t v)
{
if ((env->sregs[DBREAKC + i] ^ v) & (DBREAKC_SB_LB | DBREAKC_MASK)) {
if (v & DBREAKC_SB_LB) {
- set_dbreak(i, env->sregs[DBREAKA + i], v);
+ set_dbreak(env, i, env->sregs[DBREAKA + i], v);
} else {
if (env->cpu_watchpoint[i]) {
cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[i]);
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index 521c0e6226..b883e6bb72 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -254,7 +254,7 @@ static void gen_advance_ccount(DisasContext *dc)
if (dc->ccount_delta > 0) {
TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta);
dc->ccount_delta = 0;
- gen_helper_advance_ccount(tmp);
+ gen_helper_advance_ccount(cpu_env, tmp);
tcg_temp_free(tmp);
}
}
@@ -268,7 +268,7 @@ static void gen_exception(DisasContext *dc, int excp)
{
TCGv_i32 tmp = tcg_const_i32(excp);
gen_advance_ccount(dc);
- gen_helper_exception(tmp);
+ gen_helper_exception(cpu_env, tmp);
tcg_temp_free(tmp);
}
@@ -277,7 +277,7 @@ static void gen_exception_cause(DisasContext *dc, uint32_t cause)
TCGv_i32 tpc = tcg_const_i32(dc->pc);
TCGv_i32 tcause = tcg_const_i32(cause);
gen_advance_ccount(dc);
- gen_helper_exception_cause(tpc, tcause);
+ gen_helper_exception_cause(cpu_env, tpc, tcause);
tcg_temp_free(tpc);
tcg_temp_free(tcause);
if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
@@ -292,7 +292,7 @@ static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause,
TCGv_i32 tpc = tcg_const_i32(dc->pc);
TCGv_i32 tcause = tcg_const_i32(cause);
gen_advance_ccount(dc);
- gen_helper_exception_cause_vaddr(tpc, tcause, vaddr);
+ gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr);
tcg_temp_free(tpc);
tcg_temp_free(tcause);
}
@@ -302,7 +302,7 @@ static void gen_debug_exception(DisasContext *dc, uint32_t cause)
TCGv_i32 tpc = tcg_const_i32(dc->pc);
TCGv_i32 tcause = tcg_const_i32(cause);
gen_advance_ccount(dc);
- gen_helper_debug_exception(tpc, tcause);
+ gen_helper_debug_exception(cpu_env, tpc, tcause);
tcg_temp_free(tpc);
tcg_temp_free(tcause);
if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
@@ -388,6 +388,7 @@ static bool gen_check_loop_end(DisasContext *dc, int slot)
dc->next_pc == dc->lend) {
int label = gen_new_label();
+ gen_advance_ccount(dc);
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
gen_jumpi(dc, dc->lbeg, slot);
@@ -410,6 +411,7 @@ static void gen_brcond(DisasContext *dc, TCGCond cond,
{
int label = gen_new_label();
+ gen_advance_ccount(dc);
tcg_gen_brcond_i32(cond, t0, t1, label);
gen_jumpi_check_loop_end(dc, 0);
gen_set_label(label);
@@ -458,13 +460,13 @@ static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
{
- gen_helper_wsr_lbeg(s);
+ gen_helper_wsr_lbeg(cpu_env, s);
gen_jumpi_check_loop_end(dc, 0);
}
static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
{
- gen_helper_wsr_lend(s);
+ gen_helper_wsr_lend(cpu_env, s);
gen_jumpi_check_loop_end(dc, 0);
}
@@ -497,7 +499,7 @@ static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s)
static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
{
- gen_helper_wsr_windowbase(v);
+ gen_helper_wsr_windowbase(cpu_env, v);
reset_used_window(dc);
}
@@ -514,7 +516,7 @@ static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v)
static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
{
- gen_helper_wsr_rasid(v);
+ gen_helper_wsr_rasid(cpu_env, v);
/* This can change tb->flags, so exit tb */
gen_jumpi_check_loop_end(dc, -1);
}
@@ -526,7 +528,7 @@ static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v)
static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
{
- gen_helper_wsr_ibreakenable(v);
+ gen_helper_wsr_ibreakenable(cpu_env, v);
gen_jumpi_check_loop_end(dc, 0);
}
@@ -536,7 +538,7 @@ static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
if (id < dc->config->nibreak) {
TCGv_i32 tmp = tcg_const_i32(id);
- gen_helper_wsr_ibreaka(tmp, v);
+ gen_helper_wsr_ibreaka(cpu_env, tmp, v);
tcg_temp_free(tmp);
gen_jumpi_check_loop_end(dc, 0);
}
@@ -548,7 +550,7 @@ static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
if (id < dc->config->ndbreak) {
TCGv_i32 tmp = tcg_const_i32(id);
- gen_helper_wsr_dbreaka(tmp, v);
+ gen_helper_wsr_dbreaka(cpu_env, tmp, v);
tcg_temp_free(tmp);
}
}
@@ -559,7 +561,7 @@ static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v)
if (id < dc->config->ndbreak) {
TCGv_i32 tmp = tcg_const_i32(id);
- gen_helper_wsr_dbreakc(tmp, v);
+ gen_helper_wsr_dbreakc(cpu_env, tmp, v);
tcg_temp_free(tmp);
}
}
@@ -712,7 +714,7 @@ static void gen_waiti(DisasContext *dc, uint32_t imm4)
TCGv_i32 pc = tcg_const_i32(dc->next_pc);
TCGv_i32 intlevel = tcg_const_i32(imm4);
gen_advance_ccount(dc);
- gen_helper_waiti(pc, intlevel);
+ gen_helper_waiti(cpu_env, pc, intlevel);
tcg_temp_free(pc);
tcg_temp_free(intlevel);
}
@@ -729,7 +731,7 @@ static void gen_window_check1(DisasContext *dc, unsigned r1)
dc->used_window = r1 / 4;
gen_advance_ccount(dc);
- gen_helper_window_check(pc, w);
+ gen_helper_window_check(cpu_env, pc, w);
tcg_temp_free(w);
tcg_temp_free(pc);
@@ -849,8 +851,8 @@ static void disas_xtensa_insn(DisasContext *dc)
#define RSR_SR (b1)
- uint8_t b0 = ldub_code(dc->pc);
- uint8_t b1 = ldub_code(dc->pc + 1);
+ uint8_t b0 = cpu_ldub_code(cpu_single_env, dc->pc);
+ uint8_t b1 = cpu_ldub_code(cpu_single_env, dc->pc + 1);
uint8_t b2 = 0;
static const uint32_t B4CONST[] = {
@@ -866,7 +868,7 @@ static void disas_xtensa_insn(DisasContext *dc)
HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);
} else {
dc->next_pc = dc->pc + 3;
- b2 = ldub_code(dc->pc + 2);
+ b2 = cpu_ldub_code(cpu_single_env, dc->pc + 2);
}
switch (OP0) {
@@ -903,7 +905,7 @@ static void disas_xtensa_insn(DisasContext *dc)
{
TCGv_i32 tmp = tcg_const_i32(dc->pc);
gen_advance_ccount(dc);
- gen_helper_retw(tmp, tmp);
+ gen_helper_retw(tmp, cpu_env, tmp);
gen_jump(dc, tmp);
tcg_temp_free(tmp);
}
@@ -951,7 +953,7 @@ static void disas_xtensa_insn(DisasContext *dc)
{
TCGv_i32 pc = tcg_const_i32(dc->pc);
gen_advance_ccount(dc);
- gen_helper_movsp(pc);
+ gen_helper_movsp(cpu_env, pc);
tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]);
tcg_temp_free(pc);
}
@@ -1031,7 +1033,7 @@ static void disas_xtensa_insn(DisasContext *dc)
cpu_SR[WINDOW_START], tmp);
}
- gen_helper_restore_owb();
+ gen_helper_restore_owb(cpu_env);
gen_helper_check_interrupts(cpu_env);
gen_jump(dc, cpu_SR[EPC1]);
@@ -1219,7 +1221,7 @@ static void disas_xtensa_insn(DisasContext *dc)
{
TCGv_i32 tmp = tcg_const_i32(
RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
- gen_helper_rotw(tmp);
+ gen_helper_rotw(cpu_env, tmp);
tcg_temp_free(tmp);
reset_used_window(dc);
}
@@ -1255,28 +1257,32 @@ static void disas_xtensa_insn(DisasContext *dc)
switch (RRR_R & 7) {
case 3: /*RITLB0*/ /*RDTLB0*/
- gen_helper_rtlb0(cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
+ gen_helper_rtlb0(cpu_R[RRR_T],
+ cpu_env, cpu_R[RRR_S], dtlb);
break;
case 4: /*IITLB*/ /*IDTLB*/
- gen_helper_itlb(cpu_R[RRR_S], dtlb);
+ gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb);
/* This could change memory mapping, so exit tb */
gen_jumpi_check_loop_end(dc, -1);
break;
case 5: /*PITLB*/ /*PDTLB*/
tcg_gen_movi_i32(cpu_pc, dc->pc);
- gen_helper_ptlb(cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
+ gen_helper_ptlb(cpu_R[RRR_T],
+ cpu_env, cpu_R[RRR_S], dtlb);
break;
case 6: /*WITLB*/ /*WDTLB*/
- gen_helper_wtlb(cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
+ gen_helper_wtlb(
+ cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
/* This could change memory mapping, so exit tb */
gen_jumpi_check_loop_end(dc, -1);
break;
case 7: /*RITLB1*/ /*RDTLB1*/
- gen_helper_rtlb1(cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
+ gen_helper_rtlb1(cpu_R[RRR_T],
+ cpu_env, cpu_R[RRR_S], dtlb);
break;
default:
@@ -2244,7 +2250,7 @@ static void disas_xtensa_insn(DisasContext *dc)
TCGv_i32 s = tcg_const_i32(BRI12_S);
TCGv_i32 imm = tcg_const_i32(BRI12_IMM12);
gen_advance_ccount(dc);
- gen_helper_entry(pc, s, imm);
+ gen_helper_entry(cpu_env, pc, s, imm);
tcg_temp_free(imm);
tcg_temp_free(s);
tcg_temp_free(pc);
@@ -2278,7 +2284,7 @@ static void disas_xtensa_insn(DisasContext *dc)
tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc);
- gen_helper_wsr_lend(tmp);
+ gen_helper_wsr_lend(cpu_env, tmp);
tcg_temp_free(tmp);
if (BRI8_R > 8) {
@@ -2447,7 +2453,7 @@ static void disas_xtensa_insn(DisasContext *dc)
{
TCGv_i32 tmp = tcg_const_i32(dc->pc);
gen_advance_ccount(dc);
- gen_helper_retw(tmp, tmp);
+ gen_helper_retw(tmp, cpu_env, tmp);
gen_jump(dc, tmp);
tcg_temp_free(tmp);
}
diff --git a/target-xtensa/xtensa-semi.c b/target-xtensa/xtensa-semi.c
new file mode 100644
index 0000000000..1c8a19ed56
--- /dev/null
+++ b/target-xtensa/xtensa-semi.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the Open Source and Linux Lab nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <stddef.h>
+#include "cpu.h"
+#include "helper.h"
+#include "qemu-log.h"
+
+enum {
+ TARGET_SYS_exit = 1,
+ TARGET_SYS_read = 3,
+ TARGET_SYS_write = 4,
+ TARGET_SYS_open = 5,
+ TARGET_SYS_close = 6,
+ TARGET_SYS_lseek = 19,
+ TARGET_SYS_select_one = 29,
+
+ TARGET_SYS_argc = 1000,
+ TARGET_SYS_argv_sz = 1001,
+ TARGET_SYS_argv = 1002,
+ TARGET_SYS_memset = 1004,
+};
+
+enum {
+ SELECT_ONE_READ = 1,
+ SELECT_ONE_WRITE = 2,
+ SELECT_ONE_EXCEPT = 3,
+};
+
+void HELPER(simcall)(CPUXtensaState *env)
+{
+ uint32_t *regs = env->regs;
+
+ switch (regs[2]) {
+ case TARGET_SYS_exit:
+ qemu_log("exit(%d) simcall\n", regs[3]);
+ exit(regs[3]);
+ break;
+
+ case TARGET_SYS_read:
+ case TARGET_SYS_write:
+ {
+ bool is_write = regs[2] == TARGET_SYS_write;
+ uint32_t fd = regs[3];
+ uint32_t vaddr = regs[4];
+ uint32_t len = regs[5];
+
+ while (len > 0) {
+ target_phys_addr_t paddr =
+ cpu_get_phys_page_debug(env, vaddr);
+ uint32_t page_left =
+ TARGET_PAGE_SIZE - (vaddr & (TARGET_PAGE_SIZE - 1));
+ uint32_t io_sz = page_left < len ? page_left : len;
+ target_phys_addr_t sz = io_sz;
+ void *buf = cpu_physical_memory_map(paddr, &sz, is_write);
+
+ if (buf) {
+ vaddr += io_sz;
+ len -= io_sz;
+ regs[2] = is_write ?
+ write(fd, buf, io_sz) :
+ read(fd, buf, io_sz);
+ regs[3] = errno;
+ cpu_physical_memory_unmap(buf, sz, is_write, sz);
+ if (regs[2] == -1) {
+ break;
+ }
+ } else {
+ regs[2] = -1;
+ regs[3] = EINVAL;
+ break;
+ }
+ }
+ }
+ break;
+
+ case TARGET_SYS_open:
+ {
+ char name[1024];
+ int rc;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(name); ++i) {
+ rc = cpu_memory_rw_debug(
+ env, regs[3] + i, (uint8_t *)name + i, 1, 0);
+ if (rc != 0 || name[i] == 0) {
+ break;
+ }
+ }
+
+ if (rc == 0 && i < ARRAY_SIZE(name)) {
+ regs[2] = open(name, regs[4], regs[5]);
+ regs[3] = errno;
+ } else {
+ regs[2] = -1;
+ regs[3] = EINVAL;
+ }
+ }
+ break;
+
+ case TARGET_SYS_close:
+ if (regs[3] < 3) {
+ regs[2] = regs[3] = 0;
+ } else {
+ regs[2] = close(regs[3]);
+ regs[3] = errno;
+ }
+ break;
+
+ case TARGET_SYS_lseek:
+ regs[2] = lseek(regs[3], (off_t)(int32_t)regs[4], regs[5]);
+ regs[3] = errno;
+ break;
+
+ case TARGET_SYS_select_one:
+ {
+ uint32_t fd = regs[3];
+ uint32_t rq = regs[4];
+ uint32_t target_tv = regs[5];
+ uint32_t target_tvv[2];
+
+ struct timeval tv = {0};
+ fd_set fdset;
+
+ FD_ZERO(&fdset);
+ FD_SET(fd, &fdset);
+
+ if (target_tv) {
+ cpu_memory_rw_debug(env, target_tv,
+ (uint8_t *)target_tvv, sizeof(target_tvv), 0);
+ tv.tv_sec = (int32_t)tswap32(target_tvv[0]);
+ tv.tv_usec = (int32_t)tswap32(target_tvv[1]);
+ }
+ regs[2] = select(fd + 1,
+ rq == SELECT_ONE_READ ? &fdset : NULL,
+ rq == SELECT_ONE_WRITE ? &fdset : NULL,
+ rq == SELECT_ONE_EXCEPT ? &fdset : NULL,
+ target_tv ? &tv : NULL);
+ regs[3] = errno;
+ }
+ break;
+
+ case TARGET_SYS_argc:
+ regs[2] = 1;
+ regs[3] = 0;
+ break;
+
+ case TARGET_SYS_argv_sz:
+ regs[2] = 128;
+ regs[3] = 0;
+ break;
+
+ case TARGET_SYS_argv:
+ {
+ struct Argv {
+ uint32_t argptr[2];
+ char text[120];
+ } argv = {
+ {0, 0},
+ "test"
+ };
+
+ argv.argptr[0] = tswap32(regs[3] + offsetof(struct Argv, text));
+ cpu_memory_rw_debug(
+ env, regs[3], (uint8_t *)&argv, sizeof(argv), 1);
+ }
+ break;
+
+ case TARGET_SYS_memset:
+ {
+ uint32_t base = regs[3];
+ uint32_t sz = regs[5];
+
+ while (sz) {
+ target_phys_addr_t len = sz;
+ void *buf = cpu_physical_memory_map(base, &len, 1);
+
+ if (buf && len) {
+ memset(buf, regs[4], len);
+ cpu_physical_memory_unmap(buf, len, 1, len);
+ } else {
+ len = 1;
+ }
+ base += len;
+ sz -= len;
+ }
+ regs[2] = regs[3];
+ regs[3] = 0;
+ }
+ break;
+
+ default:
+ qemu_log("%s(%d): not implemented\n", __func__, regs[2]);
+ break;
+ }
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-19 19:48:18 +0000