From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: laurent.desnogues@gmail.com, peter.maydell@linaro.org,
qemu-arm@nongnu.org
Subject: [PATCH v6 03/20] target/arm: Split out rebuild_hflags_common_32
Date: Fri, 11 Oct 2019 11:55:29 -0400 [thread overview]
Message-ID: <20191011155546.14342-4-richard.henderson@linaro.org> (raw)
In-Reply-To: <20191011155546.14342-1-richard.henderson@linaro.org>
Create a function to compute the values of the TBFLAG_A32 bits
that will be cached, and are used by all profiles.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 69da04786e..f05d042474 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11070,6 +11070,15 @@ static uint32_t rebuild_hflags_common(CPUARMState *env, int fp_el,
return flags;
}
+static uint32_t rebuild_hflags_common_32(CPUARMState *env, int fp_el,
+ ARMMMUIdx mmu_idx, uint32_t flags)
+{
+ flags = FIELD_DP32(flags, TBFLAG_A32, SCTLR_B, arm_sctlr_b(env));
+ flags = FIELD_DP32(flags, TBFLAG_A32, NS, !access_secure_reg(env));
+
+ return rebuild_hflags_common(env, fp_el, mmu_idx, flags);
+}
+
static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
ARMMMUIdx mmu_idx)
{
@@ -11141,7 +11150,7 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
ARMMMUIdx mmu_idx = arm_mmu_idx(env);
int current_el = arm_current_el(env);
int fp_el = fp_exception_el(env, current_el);
- uint32_t flags = 0;
+ uint32_t flags;
if (is_a64(env)) {
*pc = env->pc;
@@ -11151,12 +11160,11 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
}
} else {
*pc = env->regs[15];
+ flags = rebuild_hflags_common_32(env, fp_el, mmu_idx, 0);
flags = FIELD_DP32(flags, TBFLAG_A32, THUMB, env->thumb);
flags = FIELD_DP32(flags, TBFLAG_A32, VECLEN, env->vfp.vec_len);
flags = FIELD_DP32(flags, TBFLAG_A32, VECSTRIDE, env->vfp.vec_stride);
flags = FIELD_DP32(flags, TBFLAG_A32, CONDEXEC, env->condexec_bits);
- flags = FIELD_DP32(flags, TBFLAG_A32, SCTLR_B, arm_sctlr_b(env));
- flags = FIELD_DP32(flags, TBFLAG_A32, NS, !access_secure_reg(env));
if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)
|| arm_el_is_aa64(env, 1) || arm_feature(env, ARM_FEATURE_M)) {
flags = FIELD_DP32(flags, TBFLAG_A32, VFPEN, 1);
@@ -11166,8 +11174,6 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
flags = FIELD_DP32(flags, TBFLAG_A32,
XSCALE_CPAR, env->cp15.c15_cpar);
}
-
- flags = rebuild_hflags_common(env, fp_el, mmu_idx, flags);
}
/* The SS_ACTIVE and PSTATE_SS bits correspond to the state machine
--
2.17.1
next prev parent reply other threads:[~2019-10-11 16:01 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 15:55 [PATCH v6 00/20] target/arm: Reduce overhead of cpu_get_tb_cpu_state Richard Henderson
2019-10-11 15:55 ` [PATCH v6 01/20] target/arm: Split out rebuild_hflags_common Richard Henderson
2019-10-11 15:55 ` [PATCH v6 02/20] target/arm: Split out rebuild_hflags_a64 Richard Henderson
2019-10-14 15:43 ` Alex Bennée
2019-10-11 15:55 ` Richard Henderson [this message]
2019-10-14 15:53 ` [PATCH v6 03/20] target/arm: Split out rebuild_hflags_common_32 Alex Bennée
2019-10-11 15:55 ` [PATCH v6 04/20] target/arm: Split arm_cpu_data_is_big_endian Richard Henderson
2019-10-14 16:01 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 05/20] target/arm: Split out rebuild_hflags_m32 Richard Henderson
2019-10-14 16:13 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 06/20] target/arm: Reduce tests vs M-profile in cpu_get_tb_cpu_state Richard Henderson
2019-10-14 16:17 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 07/20] target/arm: Split out rebuild_hflags_a32 Richard Henderson
2019-10-14 16:17 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 08/20] target/arm: Split out rebuild_hflags_aprofile Richard Henderson
2019-10-14 16:19 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 09/20] target/arm: Hoist XSCALE_CPAR, VECLEN, VECSTRIDE in cpu_get_tb_cpu_state Richard Henderson
2019-10-14 16:39 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 10/20] target/arm: Simplify set of PSTATE_SS " Richard Henderson
2019-10-14 18:21 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 11/20] target/arm: Hoist computation of TBFLAG_A32.VFPEN Richard Henderson
2019-10-14 18:46 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 12/20] target/arm: Add arm_rebuild_hflags Richard Henderson
2019-10-14 18:47 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 13/20] target/arm: Split out arm_mmu_idx_el Richard Henderson
2019-10-14 18:49 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 14/20] target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state Richard Henderson
2019-10-14 18:51 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 15/20] target/arm: Add HELPER(rebuild_hflags_{a32, a64, m32}) Richard Henderson
2019-10-14 18:59 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 16/20] target/arm: Rebuild hflags at EL changes Richard Henderson
2019-10-14 19:01 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 17/20] target/arm: Rebuild hflags at MSR writes Richard Henderson
2019-10-14 19:03 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 18/20] target/arm: Rebuild hflags at CPSR writes Richard Henderson
2019-10-14 19:08 ` Alex Bennée
2019-10-14 19:15 ` Richard Henderson
2019-10-11 15:55 ` [PATCH v6 19/20] target/arm: Rebuild hflags for M-profile Richard Henderson
2019-10-14 19:08 ` Alex Bennée
2019-10-11 15:55 ` [PATCH v6 20/20] target/arm: Rely on hflags correct in cpu_get_tb_cpu_state Richard Henderson
2019-10-17 15:26 ` [PATCH v6 00/20] target/arm: Reduce overhead of cpu_get_tb_cpu_state Peter Maydell
2019-10-17 16:25 ` Richard Henderson
2019-10-17 17:01 ` Peter Maydell
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