diff mbox series

[v2,2/3] target/arm: Export aarch64_sve_zcr_get_valid_len

Message ID 20210723203344.968563-3-richard.henderson@linaro.org
State New
Headers show
Series target/arm: Add sve-default-vector-length cpu property | expand

Commit Message

Richard Henderson July 23, 2021, 8:33 p.m. UTC 
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/internals.h | 10 ++++++++++
 target/arm/helper.c    |  4 ++--
 2 files changed, 12 insertions(+), 2 deletions(-)

Comments

Peter Maydell July 26, 2021, 10:57 a.m. UTC | #1 
On Fri, 23 Jul 2021 at 21:36, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> 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/internals.h | 10 ++++++++++

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM
diff mbox series

Patch

diff --git a/target/arm/internals.h b/target/arm/internals.h
index 11a72013f5..cd2ea8a388 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -177,6 +177,16 @@  void arm_translate_init(void);
 void arm_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb);
 #endif /* CONFIG_TCG */
 
+/**
+ * aarch64_sve_zcr_get_valid_len:
+ * @cpu: cpu context
+ * @start_len: maximum len to consider
+ *
+ * Return the maximum supported sve vector length <= @start_len.
+ * Note that both @start_len and the return value are in units
+ * of ZCR_ELx.LEN, so the vector bit length is (x + 1) * 128.
+ */
+uint32_t aarch64_sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len);
 
 enum arm_fprounding {
     FPROUNDING_TIEEVEN,
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 8c1d8dbce3..155d8bf239 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6457,7 +6457,7 @@  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;
 
@@ -6489,7 +6489,7 @@  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,