From: Aleksandar Markovic <aleksandar.markovic@rt-rk.com>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, amarkovic@wavecomp.com
Subject: [Qemu-devel] [PULL v2 05/12] target/mips: Provide R/W access to SAARI and SAAR CP0 registers
Date: Fri, 18 Jan 2019 17:59:38 +0100 [thread overview]
Message-ID: <1547830785-7079-6-git-send-email-aleksandar.markovic@rt-rk.com> (raw)
In-Reply-To: <1547830785-7079-1-git-send-email-aleksandar.markovic@rt-rk.com>
From: Yongbok Kim <yongbok.kim@mips.com>
Provide R/W access to SAARI and SAAR CP0 registers.
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
---
target/mips/cpu.h | 1 +
target/mips/helper.h | 6 +++++
target/mips/internal.h | 1 +
target/mips/op_helper.c | 50 +++++++++++++++++++++++++++++++++++++
target/mips/translate.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++---
5 files changed, 120 insertions(+), 4 deletions(-)
diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 1c2c682..185702d 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -901,6 +901,7 @@ struct CPUMIPSState {
uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
uint64_t insn_flags; /* Supported instruction set */
+ int saarp;
/* Fields up to this point are cleared by a CPU reset */
struct {} end_reset_fields;
diff --git a/target/mips/helper.h b/target/mips/helper.h
index c23e4e5..8872c46 100644
--- a/target/mips/helper.h
+++ b/target/mips/helper.h
@@ -65,6 +65,8 @@ DEF_HELPER_1(mftc0_tcschedule, tl, env)
DEF_HELPER_1(mfc0_tcschefback, tl, env)
DEF_HELPER_1(mftc0_tcschefback, tl, env)
DEF_HELPER_1(mfc0_count, tl, env)
+DEF_HELPER_1(mfc0_saar, tl, env)
+DEF_HELPER_1(mfhc0_saar, tl, env)
DEF_HELPER_1(mftc0_entryhi, tl, env)
DEF_HELPER_1(mftc0_status, tl, env)
DEF_HELPER_1(mftc0_cause, tl, env)
@@ -87,6 +89,7 @@ DEF_HELPER_1(dmfc0_tcschefback, tl, env)
DEF_HELPER_1(dmfc0_lladdr, tl, env)
DEF_HELPER_1(dmfc0_maar, tl, env)
DEF_HELPER_2(dmfc0_watchlo, tl, env, i32)
+DEF_HELPER_1(dmfc0_saar, tl, env)
#endif /* TARGET_MIPS64 */
DEF_HELPER_2(mtc0_index, void, env, tl)
@@ -131,6 +134,9 @@ DEF_HELPER_2(mtc0_srsconf4, void, env, tl)
DEF_HELPER_2(mtc0_hwrena, void, env, tl)
DEF_HELPER_2(mtc0_pwctl, void, env, tl)
DEF_HELPER_2(mtc0_count, void, env, tl)
+DEF_HELPER_2(mtc0_saari, void, env, tl)
+DEF_HELPER_2(mtc0_saar, void, env, tl)
+DEF_HELPER_2(mthc0_saar, void, env, tl)
DEF_HELPER_2(mtc0_entryhi, void, env, tl)
DEF_HELPER_2(mttc0_entryhi, void, env, tl)
DEF_HELPER_2(mtc0_compare, void, env, tl)
diff --git a/target/mips/internal.h b/target/mips/internal.h
index 8b1b245..8f6fc91 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -61,6 +61,7 @@ struct mips_def_t {
target_ulong CP0_EBaseWG_rw_bitmask;
uint64_t insn_flags;
enum mips_mmu_types mmu_type;
+ int32_t SAARP;
};
extern const struct mips_def_t mips_defs[];
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index d1f1d1a..409c136 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -938,6 +938,22 @@ target_ulong helper_mfc0_count(CPUMIPSState *env)
return count;
}
+target_ulong helper_mfc0_saar(CPUMIPSState *env)
+{
+ if ((env->CP0_SAARI & 0x3f) < 2) {
+ return (int32_t) env->CP0_SAAR[env->CP0_SAARI & 0x3f];
+ }
+ return 0;
+}
+
+target_ulong helper_mfhc0_saar(CPUMIPSState *env)
+{
+ if ((env->CP0_SAARI & 0x3f) < 2) {
+ return env->CP0_SAAR[env->CP0_SAARI & 0x3f] >> 32;
+ }
+ return 0;
+}
+
target_ulong helper_mftc0_entryhi(CPUMIPSState *env)
{
int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
@@ -1059,6 +1075,14 @@ target_ulong helper_dmfc0_watchlo(CPUMIPSState *env, uint32_t sel)
{
return env->CP0_WatchLo[sel];
}
+
+target_ulong helper_dmfc0_saar(CPUMIPSState *env)
+{
+ if ((env->CP0_SAARI & 0x3f) < 2) {
+ return env->CP0_SAAR[env->CP0_SAARI & 0x3f];
+ }
+ return 0;
+}
#endif /* TARGET_MIPS64 */
void helper_mtc0_index(CPUMIPSState *env, target_ulong arg1)
@@ -1598,6 +1622,32 @@ void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1)
qemu_mutex_unlock_iothread();
}
+void helper_mtc0_saari(CPUMIPSState *env, target_ulong arg1)
+{
+ uint32_t target = arg1 & 0x3f;
+ if (target <= 1) {
+ env->CP0_SAARI = target;
+ }
+}
+
+void helper_mtc0_saar(CPUMIPSState *env, target_ulong arg1)
+{
+ uint32_t target = env->CP0_SAARI & 0x3f;
+ if (target < 2) {
+ env->CP0_SAAR[target] = arg1 & 0x00000ffffffff03fULL;
+ }
+}
+
+void helper_mthc0_saar(CPUMIPSState *env, target_ulong arg1)
+{
+ uint32_t target = env->CP0_SAARI & 0x3f;
+ if (target < 2) {
+ env->CP0_SAAR[target] =
+ (((uint64_t) arg1 << 32) & 0x00000fff00000000ULL) |
+ (env->CP0_SAAR[target] & 0x00000000ffffffffULL);
+ }
+}
+
void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1)
{
target_ulong old, val, mask;
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 827d0f7..00cbbf7 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -2537,6 +2537,7 @@ typedef struct DisasContext {
bool mrp;
bool nan2008;
bool abs2008;
+ bool saar;
} DisasContext;
#define DISAS_STOP DISAS_TARGET_0
@@ -6592,6 +6593,17 @@ static void gen_mfhc0(DisasContext *ctx, TCGv arg, int reg, int sel)
goto cp0_unimplemented;
}
break;
+ case CPO_REGISTER_09:
+ switch (sel) {
+ case 7:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mfhc0_saar(arg, cpu_env);
+ rn = "SAAR";
+ break;
+ default:
+ goto cp0_unimplemented;
+ }
+ break;
case CPO_REGISTER_17:
switch (sel) {
case 0:
@@ -6662,6 +6674,16 @@ static void gen_mthc0(DisasContext *ctx, TCGv arg, int reg, int sel)
goto cp0_unimplemented;
}
break;
+ case CPO_REGISTER_09:
+ switch (sel) {
+ case 7:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mthc0_saar(cpu_env, arg);
+ rn = "SAAR";
+ break;
+ default:
+ goto cp0_unimplemented;
+ }
case CPO_REGISTER_17:
switch (sel) {
case 0:
@@ -7048,7 +7070,16 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
ctx->base.is_jmp = DISAS_EXIT;
rn = "Count";
break;
- /* 6,7 are implementation dependent */
+ case 6:
+ CP0_CHECK(ctx->saar);
+ gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI));
+ rn = "SAARI";
+ break;
+ case 7:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mfc0_saar(arg, cpu_env);
+ rn = "SAAR";
+ break;
default:
goto cp0_unimplemented;
}
@@ -7753,7 +7784,16 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
gen_helper_mtc0_count(cpu_env, arg);
rn = "Count";
break;
- /* 6,7 are implementation dependent */
+ case 6:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mtc0_saari(cpu_env, arg);
+ rn = "SAARI";
+ break;
+ case 7:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mtc0_saar(cpu_env, arg);
+ rn = "SAAR";
+ break;
default:
goto cp0_unimplemented;
}
@@ -8498,7 +8538,16 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
ctx->base.is_jmp = DISAS_EXIT;
rn = "Count";
break;
- /* 6,7 are implementation dependent */
+ case 6:
+ CP0_CHECK(ctx->saar);
+ gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI));
+ rn = "SAARI";
+ break;
+ case 7:
+ CP0_CHECK(ctx->saar);
+ gen_helper_dmfc0_saar(arg, cpu_env);
+ rn = "SAAR";
+ break;
default:
goto cp0_unimplemented;
}
@@ -9186,7 +9235,16 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
gen_helper_mtc0_count(cpu_env, arg);
rn = "Count";
break;
- /* 6,7 are implementation dependent */
+ case 6:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mtc0_saari(cpu_env, arg);
+ rn = "SAARI";
+ break;
+ case 7:
+ CP0_CHECK(ctx->saar);
+ gen_helper_mtc0_saar(cpu_env, arg);
+ rn = "SAAR";
+ break;
default:
goto cp0_unimplemented;
}
--
2.7.4
next prev parent reply other threads:[~2019-01-18 17:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 16:59 [Qemu-devel] [PULL v2 00/12] MIPS queue for January 17, 2019 - v2 Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 01/12] target/mips: Move comment containing summary of CP0 registers Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 02/12] target/mips: Add preprocessor constants for 32 major " Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 03/12] target/mips: Use " Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 04/12] target/mips: Add fields for SAARI and SAAR " Aleksandar Markovic
2019-01-18 16:59 ` Aleksandar Markovic [this message]
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 06/12] target/mips: Add field and R/W access to ITU control register ICR0 Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 07/12] target/mips: Update ITU to utilize SAARI and SAAR CP0 registers Aleksandar Markovic
2019-02-14 18:40 ` Peter Maydell
2019-02-14 18:58 ` Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 08/12] target/mips: Update ITU to handle bus errors Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 09/12] target/mips: Amend preprocessor constants for CP0 registers Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 10/12] target/mips: Add CP0 register MemoryMapID Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 11/12] target/mips: Rename 'rn' to 'register_name' Aleksandar Markovic
2019-01-18 16:59 ` [Qemu-devel] [PULL v2 12/12] target/mips: Introduce 32 R5900 multimedia registers Aleksandar Markovic
2020-11-14 18:23 ` Philippe Mathieu-Daudé
2020-12-12 10:19 ` Fredrik Noring
2019-01-21 19:19 ` [Qemu-devel] [PULL v2 00/12] MIPS queue for January 17, 2019 - v2 Peter Maydell
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