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cputlb and arm/sparc targets: convert mmuidx flushes from varg to bitmap 

While the vargs approach was flexible the original MTTCG ended up
having munge the bits to a bitmap so the data could be used in
deferred work helpers. Instead of hiding that in cputlb we push the
change to the API to make it take a bitmap of MMU indexes instead.

For ARM some the resulting flushes end up being quite long so to aid
readability I've tended to move the index shifting to a new line so
all the bits being or-ed together line up nicely, for example:

    tlb_flush_page_by_mmuidx(other_cs, pageaddr,
                             (1 << ARMMMUIdx_S1SE1) |
                             (1 << ARMMMUIdx_S1SE0));

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
[AT: SPARC parts only]
Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
[PM: ARM parts only]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alex Bennée 2017-02-23 18:29:19 +00:00
parent e3b9ca8109
commit 0336cbf853
4 changed files with 107 additions and 90 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
cputlb.c
View File

@ -122,26 +122,25 @@ void tlb_flush(CPUState *cpu)
}
}
static inline void v_tlb_flush_by_mmuidx(CPUState *cpu, va_list argp)
static inline void v_tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap)
{
CPUArchState *env = cpu->env_ptr;
unsigned long mmu_idx_bitmask = idxmap;
int mmu_idx;
assert_cpu_is_self(cpu);
tlb_debug("start\n");
tb_lock();
for (;;) {
int mmu_idx = va_arg(argp, int);
for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) {
if (mmu_idx < 0) {
break;
if (test_bit(mmu_idx, &mmu_idx_bitmask)) {
tlb_debug("%d\n", mmu_idx);
memset(env->tlb_table[mmu_idx], -1, sizeof(env->tlb_table[0]));
memset(env->tlb_v_table[mmu_idx], -1, sizeof(env->tlb_v_table[0]));
}
tlb_debug("%d\n", mmu_idx);
memset(env->tlb_table[mmu_idx], -1, sizeof(env->tlb_table[0]));
memset(env->tlb_v_table[mmu_idx], -1, sizeof(env->tlb_v_table[0]));
}
memset(cpu->tb_jmp_cache, 0, sizeof(cpu->tb_jmp_cache));
@ -149,12 +148,9 @@ static inline void v_tlb_flush_by_mmuidx(CPUState *cpu, va_list argp)
tb_unlock();
}
void tlb_flush_by_mmuidx(CPUState *cpu, ...)
void tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap)
{
va_list argp;
va_start(argp, cpu);
v_tlb_flush_by_mmuidx(cpu, argp);
va_end(argp);
v_tlb_flush_by_mmuidx(cpu, idxmap);
}
static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr)
@ -219,13 +215,11 @@ void tlb_flush_page(CPUState *cpu, target_ulong addr)
}
}
void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr, ...)
void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr, uint16_t idxmap)
{
CPUArchState *env = cpu->env_ptr;
int i, k;
va_list argp;
va_start(argp, addr);
unsigned long mmu_idx_bitmap = idxmap;
int i, page, mmu_idx;
assert_cpu_is_self(cpu);
tlb_debug("addr "TARGET_FMT_lx"\n", addr);
@ -236,31 +230,23 @@ void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr, ...)
TARGET_FMT_lx "/" TARGET_FMT_lx ")\n",
env->tlb_flush_addr, env->tlb_flush_mask);
v_tlb_flush_by_mmuidx(cpu, argp);
va_end(argp);
v_tlb_flush_by_mmuidx(cpu, idxmap);
return;
}
addr &= TARGET_PAGE_MASK;
i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
page = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
for (;;) {
int mmu_idx = va_arg(argp, int);
for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) {
if (test_bit(mmu_idx, &mmu_idx_bitmap)) {
tlb_flush_entry(&env->tlb_table[mmu_idx][page], addr);
if (mmu_idx < 0) {
break;
}
tlb_debug("idx %d\n", mmu_idx);
tlb_flush_entry(&env->tlb_table[mmu_idx][i], addr);
/* check whether there are vltb entries that need to be flushed */
for (k = 0; k < CPU_VTLB_SIZE; k++) {
tlb_flush_entry(&env->tlb_v_table[mmu_idx][k], addr);
/* check whether there are vltb entries that need to be flushed */
for (i = 0; i < CPU_VTLB_SIZE; i++) {
tlb_flush_entry(&env->tlb_v_table[mmu_idx][i], addr);
}
}
}
va_end(argp);
tb_flush_jmp_cache(cpu, addr);
}

13
include/exec/exec-all.h
View File

@ -106,21 +106,22 @@ void tlb_flush(CPUState *cpu);
* tlb_flush_page_by_mmuidx:
* @cpu: CPU whose TLB should be flushed
* @addr: virtual address of page to be flushed
* @...: list of MMU indexes to flush, terminated by a negative value
* @idxmap: bitmap of MMU indexes to flush
*
* Flush one page from the TLB of the specified CPU, for the specified
* MMU indexes.
*/
void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr, ...);
void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr,
uint16_t idxmap);
/**
* tlb_flush_by_mmuidx:
* @cpu: CPU whose TLB should be flushed
* @...: list of MMU indexes to flush, terminated by a negative value
* @idxmap: bitmap of MMU indexes to flush
*
* Flush all entries from the TLB of the specified CPU, for the specified
* MMU indexes.
*/
void tlb_flush_by_mmuidx(CPUState *cpu, ...);
void tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap);
/**
* tlb_set_page_with_attrs:
* @cpu: CPU to add this TLB entry for
@ -169,11 +170,11 @@ static inline void tlb_flush(CPUState *cpu)
}
static inline void tlb_flush_page_by_mmuidx(CPUState *cpu,
target_ulong addr, ...)
target_ulong addr, uint16_t idxmap)
{
}
static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
static inline void tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap)
{
}
#endif

116
target/arm/helper.c
View File

@ -578,8 +578,10 @@ static void tlbiall_nsnh_write(CPUARMState *env, const ARMCPRegInfo *ri,
{
CPUState *cs = ENV_GET_CPU(env);
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S12NSE1, ARMMMUIdx_S12NSE0,
ARMMMUIdx_S2NS, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0) |
(1 << ARMMMUIdx_S2NS));
}
static void tlbiall_nsnh_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -588,8 +590,10 @@ static void tlbiall_nsnh_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *other_cs;
CPU_FOREACH(other_cs) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S12NSE1,
ARMMMUIdx_S12NSE0, ARMMMUIdx_S2NS, -1);
tlb_flush_by_mmuidx(other_cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0) |
(1 << ARMMMUIdx_S2NS));
}
}
@ -611,7 +615,7 @@ static void tlbiipas2_write(CPUARMState *env, const ARMCPRegInfo *ri,
pageaddr = sextract64(value << 12, 0, 40);
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S2NS, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr, (1 << ARMMMUIdx_S2NS));
}
static void tlbiipas2_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -627,7 +631,7 @@ static void tlbiipas2_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
pageaddr = sextract64(value << 12, 0, 40);
CPU_FOREACH(other_cs) {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S2NS, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr, (1 << ARMMMUIdx_S2NS));
}
}
@ -636,7 +640,7 @@ static void tlbiall_hyp_write(CPUARMState *env, const ARMCPRegInfo *ri,
{
CPUState *cs = ENV_GET_CPU(env);
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S1E2, -1);
tlb_flush_by_mmuidx(cs, (1 << ARMMMUIdx_S1E2));
}
static void tlbiall_hyp_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -645,7 +649,7 @@ static void tlbiall_hyp_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *other_cs;
CPU_FOREACH(other_cs) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S1E2, -1);
tlb_flush_by_mmuidx(other_cs, (1 << ARMMMUIdx_S1E2));
}
}
@ -655,7 +659,7 @@ static void tlbimva_hyp_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *cs = ENV_GET_CPU(env);
uint64_t pageaddr = value & ~MAKE_64BIT_MASK(0, 12);
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S1E2, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr, (1 << ARMMMUIdx_S1E2));
}
static void tlbimva_hyp_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -665,7 +669,7 @@ static void tlbimva_hyp_is_write(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t pageaddr = value & ~MAKE_64BIT_MASK(0, 12);
CPU_FOREACH(other_cs) {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S1E2, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr, (1 << ARMMMUIdx_S1E2));
}
}
@ -2542,8 +2546,10 @@ static void vttbr_write(CPUARMState *env, const ARMCPRegInfo *ri,
/* Accesses to VTTBR may change the VMID so we must flush the TLB. */
if (raw_read(env, ri) != value) {
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S12NSE1, ARMMMUIdx_S12NSE0,
ARMMMUIdx_S2NS, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0) |
(1 << ARMMMUIdx_S2NS));
raw_write(env, ri, value);
}
}
@ -2902,9 +2908,13 @@ static void tlbi_aa64_vmalle1_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *cs = CPU(cpu);
if (arm_is_secure_below_el3(env)) {
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S1SE1, ARMMMUIdx_S1SE0, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S1SE1) |
(1 << ARMMMUIdx_S1SE0));
} else {
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S12NSE1, ARMMMUIdx_S12NSE0, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0));
}
}
@ -2916,10 +2926,13 @@ static void tlbi_aa64_vmalle1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPU_FOREACH(other_cs) {
if (sec) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S1SE1, ARMMMUIdx_S1SE0, -1);
tlb_flush_by_mmuidx(other_cs,
(1 << ARMMMUIdx_S1SE1) |
(1 << ARMMMUIdx_S1SE0));
} else {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S12NSE1,
ARMMMUIdx_S12NSE0, -1);
tlb_flush_by_mmuidx(other_cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0));
}
}
}
@ -2935,13 +2948,19 @@ static void tlbi_aa64_alle1_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *cs = CPU(cpu);
if (arm_is_secure_below_el3(env)) {
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S1SE1, ARMMMUIdx_S1SE0, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S1SE1) |
(1 << ARMMMUIdx_S1SE0));
} else {
if (arm_feature(env, ARM_FEATURE_EL2)) {
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S12NSE1, ARMMMUIdx_S12NSE0,
ARMMMUIdx_S2NS, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0) |
(1 << ARMMMUIdx_S2NS));
} else {
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S12NSE1, ARMMMUIdx_S12NSE0, -1);
tlb_flush_by_mmuidx(cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0));
}
}
}
@ -2952,7 +2971,7 @@ static void tlbi_aa64_alle2_write(CPUARMState *env, const ARMCPRegInfo *ri,
ARMCPU *cpu = arm_env_get_cpu(env);
CPUState *cs = CPU(cpu);
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S1E2, -1);
tlb_flush_by_mmuidx(cs, (1 << ARMMMUIdx_S1E2));
}
static void tlbi_aa64_alle3_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -2961,7 +2980,7 @@ static void tlbi_aa64_alle3_write(CPUARMState *env, const ARMCPRegInfo *ri,
ARMCPU *cpu = arm_env_get_cpu(env);
CPUState *cs = CPU(cpu);
tlb_flush_by_mmuidx(cs, ARMMMUIdx_S1E3, -1);
tlb_flush_by_mmuidx(cs, (1 << ARMMMUIdx_S1E3));
}
static void tlbi_aa64_alle1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -2977,13 +2996,18 @@ static void tlbi_aa64_alle1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPU_FOREACH(other_cs) {
if (sec) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S1SE1, ARMMMUIdx_S1SE0, -1);
tlb_flush_by_mmuidx(other_cs,
(1 << ARMMMUIdx_S1SE1) |
(1 << ARMMMUIdx_S1SE0));
} else if (has_el2) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S12NSE1,
ARMMMUIdx_S12NSE0, ARMMMUIdx_S2NS, -1);
tlb_flush_by_mmuidx(other_cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0) |
(1 << ARMMMUIdx_S2NS));
} else {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S12NSE1,
ARMMMUIdx_S12NSE0, -1);
tlb_flush_by_mmuidx(other_cs,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0));
}
}
}
@ -2994,7 +3018,7 @@ static void tlbi_aa64_alle2is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *other_cs;
CPU_FOREACH(other_cs) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S1E2, -1);
tlb_flush_by_mmuidx(other_cs, (1 << ARMMMUIdx_S1E2));
}
}
@ -3004,7 +3028,7 @@ static void tlbi_aa64_alle3is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *other_cs;
CPU_FOREACH(other_cs) {
tlb_flush_by_mmuidx(other_cs, ARMMMUIdx_S1E3, -1);
tlb_flush_by_mmuidx(other_cs, (1 << ARMMMUIdx_S1E3));
}
}
@ -3021,11 +3045,13 @@ static void tlbi_aa64_vae1_write(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t pageaddr = sextract64(value << 12, 0, 56);
if (arm_is_secure_below_el3(env)) {
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S1SE1,
ARMMMUIdx_S1SE0, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr,
(1 << ARMMMUIdx_S1SE1) |
(1 << ARMMMUIdx_S1SE0));
} else {
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S12NSE1,
ARMMMUIdx_S12NSE0, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0));
}
}
@ -3040,7 +3066,7 @@ static void tlbi_aa64_vae2_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *cs = CPU(cpu);
uint64_t pageaddr = sextract64(value << 12, 0, 56);
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S1E2, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr, (1 << ARMMMUIdx_S1E2));
}
static void tlbi_aa64_vae3_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -3054,7 +3080,7 @@ static void tlbi_aa64_vae3_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPUState *cs = CPU(cpu);
uint64_t pageaddr = sextract64(value << 12, 0, 56);
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S1E3, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr, (1 << ARMMMUIdx_S1E3));
}
static void tlbi_aa64_vae1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -3066,11 +3092,13 @@ static void tlbi_aa64_vae1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
CPU_FOREACH(other_cs) {
if (sec) {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S1SE1,
ARMMMUIdx_S1SE0, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr,
(1 << ARMMMUIdx_S1SE1) |
(1 << ARMMMUIdx_S1SE0));
} else {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S12NSE1,
ARMMMUIdx_S12NSE0, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr,
(1 << ARMMMUIdx_S12NSE1) |
(1 << ARMMMUIdx_S12NSE0));
}
}
}
@ -3082,7 +3110,7 @@ static void tlbi_aa64_vae2is_write(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t pageaddr = sextract64(value << 12, 0, 56);
CPU_FOREACH(other_cs) {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S1E2, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr, (1 << ARMMMUIdx_S1E2));
}
}
@ -3093,7 +3121,7 @@ static void tlbi_aa64_vae3is_write(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t pageaddr = sextract64(value << 12, 0, 56);
CPU_FOREACH(other_cs) {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S1E3, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr, (1 << ARMMMUIdx_S1E3));
}
}
@ -3116,7 +3144,7 @@ static void tlbi_aa64_ipas2e1_write(CPUARMState *env, const ARMCPRegInfo *ri,
pageaddr = sextract64(value << 12, 0, 48);
tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdx_S2NS, -1);
tlb_flush_page_by_mmuidx(cs, pageaddr, (1 << ARMMMUIdx_S2NS));
}
static void tlbi_aa64_ipas2e1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
@ -3132,7 +3160,7 @@ static void tlbi_aa64_ipas2e1is_write(CPUARMState *env, const ARMCPRegInfo *ri,
pageaddr = sextract64(value << 12, 0, 48);
CPU_FOREACH(other_cs) {
tlb_flush_page_by_mmuidx(other_cs, pageaddr, ARMMMUIdx_S2NS, -1);
tlb_flush_page_by_mmuidx(other_cs, pageaddr, (1 << ARMMMUIdx_S2NS));
}
}

8
target/sparc/ldst_helper.c
View File

@ -1768,13 +1768,15 @@ void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
case 1:
env->dmmu.mmu_primary_context = val;
env->immu.mmu_primary_context = val;
tlb_flush_by_mmuidx(CPU(cpu), MMU_USER_IDX, MMU_KERNEL_IDX, -1);
tlb_flush_by_mmuidx(CPU(cpu),
(1 << MMU_USER_IDX) | (1 << MMU_KERNEL_IDX));
break;
case 2:
env->dmmu.mmu_secondary_context = val;
env->immu.mmu_secondary_context = val;
tlb_flush_by_mmuidx(CPU(cpu), MMU_USER_SECONDARY_IDX,
MMU_KERNEL_SECONDARY_IDX, -1);
tlb_flush_by_mmuidx(CPU(cpu),
(1 << MMU_USER_SECONDARY_IDX) |
(1 << MMU_KERNEL_SECONDARY_IDX));
break;
default:
cpu_unassigned_access(cs, addr, true, false, 1, size);