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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org
Subject: [PATCH v8 08/22] target/arm: Split out rebuild_hflags_aprofile
Date: Fri, 18 Oct 2019 10:44:17 -0700	[thread overview]
Message-ID: <20191018174431.1784-9-richard.henderson@linaro.org> (raw)
In-Reply-To: <20191018174431.1784-1-richard.henderson@linaro.org>

Create a function to compute the values of the TBFLAG_ANY bits
that will be cached, and are used by A-profile.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index d1cd54cc93..ddd21edfcf 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11106,18 +11106,28 @@ static uint32_t rebuild_hflags_m32(CPUARMState *env, int fp_el,
     return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags);
 }
 
+static uint32_t rebuild_hflags_aprofile(CPUARMState *env)
+{
+    int flags = 0;
+
+    flags = FIELD_DP32(flags, TBFLAG_ANY, DEBUG_TARGET_EL,
+                       arm_debug_target_el(env));
+    return flags;
+}
+
 static uint32_t rebuild_hflags_a32(CPUARMState *env, int fp_el,
                                    ARMMMUIdx mmu_idx)
 {
-    return rebuild_hflags_common_32(env, fp_el, mmu_idx, 0);
+    uint32_t flags = rebuild_hflags_aprofile(env);
+    return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags);
 }
 
 static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
                                    ARMMMUIdx mmu_idx)
 {
+    uint32_t flags = rebuild_hflags_aprofile(env);
     ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx);
     ARMVAParameters p0 = aa64_va_parameters_both(env, 0, stage1);
-    uint32_t flags = 0;
     uint64_t sctlr;
     int tbii, tbid;
 
@@ -11262,12 +11272,6 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
         }
     }
 
-    if (!arm_feature(env, ARM_FEATURE_M)) {
-        int target_el = arm_debug_target_el(env);
-
-        flags = FIELD_DP32(flags, TBFLAG_ANY, DEBUG_TARGET_EL, target_el);
-    }
-
     *pflags = flags;
     *cs_base = 0;
 }
-- 
2.17.1



  parent reply	other threads:[~2019-10-18 18:03 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-18 17:44 [PATCH v8 00/22] target/arm: Reduce overhead of cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 01/22] target/arm: Split out rebuild_hflags_common Richard Henderson
2019-10-18 17:44 ` [PATCH v8 02/22] target/arm: Split out rebuild_hflags_a64 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 03/22] target/arm: Split out rebuild_hflags_common_32 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 04/22] target/arm: Split arm_cpu_data_is_big_endian Richard Henderson
2019-10-18 17:44 ` [PATCH v8 05/22] target/arm: Split out rebuild_hflags_m32 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 06/22] target/arm: Reduce tests vs M-profile in cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 07/22] target/arm: Split out rebuild_hflags_a32 Richard Henderson
2019-10-18 17:44 ` Richard Henderson [this message]
2019-10-18 17:44 ` [PATCH v8 09/22] target/arm: Hoist XSCALE_CPAR, VECLEN, VECSTRIDE in cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 10/22] target/arm: Simplify set of PSTATE_SS " Richard Henderson
2019-10-18 17:44 ` [PATCH v8 11/22] target/arm: Hoist computation of TBFLAG_A32.VFPEN Richard Henderson
2019-10-18 17:44 ` [PATCH v8 12/22] target/arm: Add arm_rebuild_hflags Richard Henderson
2019-10-18 17:44 ` [PATCH v8 13/22] target/arm: Split out arm_mmu_idx_el Richard Henderson
2019-10-18 17:44 ` [PATCH v8 14/22] target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 15/22] target/arm: Add HELPER(rebuild_hflags_{a32, a64, m32}) Richard Henderson
2019-10-18 17:44 ` [PATCH v8 16/22] target/arm: Rebuild hflags at EL changes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 17/22] target/arm: Rebuild hflags at MSR writes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 18/22] target/arm: Rebuild hflags at CPSR writes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 19/22] target/arm: Rebuild hflags at Xscale SCTLR writes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 20/22] target/arm: Rebuild hflags for M-profile Richard Henderson
2019-10-18 17:44 ` [PATCH v8 21/22] target/arm: Rebuild hflags for M-profile NVIC Richard Henderson
2019-10-18 17:44 ` [PATCH v8 22/22] target/arm: Rely on hflags correct in cpu_get_tb_cpu_state Richard Henderson
2019-10-22 12:47 ` [PATCH v8 00/22] target/arm: Reduce overhead of cpu_get_tb_cpu_state Peter Maydell
2019-10-22 15:38   ` Peter Maydell
2019-10-23 14:49     ` Richard Henderson
2019-10-23 15:17       ` Alex Bennée
2019-10-23 16:13         ` Richard Henderson
2019-10-23 18:06           ` Alex Bennée

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