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target/nios2: Remove mmu_read_debug 

This functionality can be had via plugins, if desired.
In the meantime, it is unused code.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-02-25 18:49:29 -10:00
parent 36eae3a732
commit 1fb877a467
5 changed files with 0 additions and 44 deletions
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1
target/nios2/helper.h
View File

@ -21,7 +21,6 @@
DEF_HELPER_FLAGS_2(raise_exception, TCG_CALL_NO_WG, noreturn, env, i32)
#if !defined(CONFIG_USER_ONLY)
DEF_HELPER_2(mmu_read_debug, void, env, i32)
DEF_HELPER_3(mmu_write, void, env, i32, i32)
DEF_HELPER_1(check_interrupts, void, env)
#endif

20
target/nios2/mmu.c
View File

@ -35,26 +35,6 @@
#define MMU_LOG(x)
#endif
void mmu_read_debug(CPUNios2State *env, uint32_t rn)
{
switch (rn) {
case CR_TLBACC:
MMU_LOG(qemu_log("TLBACC READ %08X\n", env->regs[rn]));
break;
case CR_TLBMISC:
MMU_LOG(qemu_log("TLBMISC READ %08X\n", env->regs[rn]));
break;
case CR_PTEADDR:
MMU_LOG(qemu_log("PTEADDR READ %08X\n", env->regs[rn]));
break;
default:
break;
}
}
/* rw - 0 = read, 1 = write, 2 = fetch. */
unsigned int mmu_translate(CPUNios2State *env,
Nios2MMULookup *lu,

1
target/nios2/mmu.h
View File

@ -44,7 +44,6 @@ void mmu_flip_um(CPUNios2State *env, unsigned int um);
unsigned int mmu_translate(CPUNios2State *env,
Nios2MMULookup *lu,
target_ulong vaddr, int rw, int mmu_idx);
void mmu_read_debug(CPUNios2State *env, uint32_t rn);
void mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v);
void mmu_init(CPUNios2State *env);

5
target/nios2/op_helper.c
View File

@ -26,11 +26,6 @@
#include "qemu/main-loop.h"
#if !defined(CONFIG_USER_ONLY)
void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn)
{
mmu_read_debug(env, rn);
}
void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v)
{
mmu_write(env, rn, v);

17
target/nios2/translate.c
View File

@ -448,23 +448,6 @@ static void rdctl(DisasContext *dc, uint32_t code, uint32_t flags)
gen_check_supervisor(dc);
switch (instr.imm5 + CR_BASE) {
case CR_PTEADDR:
case CR_TLBACC:
case CR_TLBMISC:
{
#if !defined(CONFIG_USER_ONLY)
if (likely(instr.c != R_ZERO)) {
tcg_gen_mov_tl(cpu_R[instr.c], cpu_R[instr.imm5 + CR_BASE]);
#ifdef DEBUG_MMU
TCGv_i32 tmp = tcg_const_i32(instr.imm5 + CR_BASE);
gen_helper_mmu_read_debug(cpu_R[instr.c], cpu_env, tmp);
tcg_temp_free_i32(tmp);
#endif
}
#endif
break;
}
default:
if (likely(instr.c != R_ZERO)) {
tcg_gen_mov_tl(cpu_R[instr.c], cpu_R[instr.imm5 + CR_BASE]);