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[PATCH 1/2] target/arm: Export aarch64_sve_zcr_get_valid_len
From: |
Richard Henderson |
Subject: |
[PATCH 1/2] target/arm: Export aarch64_sve_zcr_get_valid_len |
Date: |
Wed, 14 Jul 2021 11:06:34 -0700 |
Rename from sve_zcr_get_valid_len and make accessible
from outside of helper.c.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.h | 2 ++
target/arm/helper.c | 8 +++++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index be9a4dceae..52e99344c5 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1060,6 +1060,8 @@ int arm_cpu_write_elf64_note(WriteCoreDumpFunction f,
CPUState *cs,
int arm_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
int cpuid, void *opaque);
+uint32_t aarch64_sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len);
+
#ifdef TARGET_AARCH64
int aarch64_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
int aarch64_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 910ace4274..a49067c115 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6454,11 +6454,13 @@ int sve_exception_el(CPUARMState *env, int el)
return 0;
}
-static uint32_t sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len)
+uint32_t aarch64_sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len)
{
uint32_t end_len;
- end_len = start_len &= 0xf;
+ start_len = MIN(start_len, ARM_MAX_VQ - 1);
+ end_len = start_len;
+
if (!test_bit(start_len, cpu->sve_vq_map)) {
end_len = find_last_bit(cpu->sve_vq_map, start_len);
assert(end_len < start_len);
@@ -6484,7 +6486,7 @@ uint32_t sve_zcr_len_for_el(CPUARMState *env, int el)
zcr_len = MIN(zcr_len, 0xf & (uint32_t)env->vfp.zcr_el[3]);
}
- return sve_zcr_get_valid_len(cpu, zcr_len);
+ return aarch64_sve_zcr_get_valid_len(cpu, zcr_len);
}
static void zcr_write(CPUARMState *env, const ARMCPRegInfo *ri,
--
2.25.1