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Re: [PATCH] linux-user/elfload: Enable LSX/LASX in HWCAP for LoongArch


From: Richard Henderson
Subject: Re: [PATCH] linux-user/elfload: Enable LSX/LASX in HWCAP for LoongArch
Date: Tue, 3 Oct 2023 13:34:21 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1

On 10/1/23 01:53, Jiajie Chen wrote:
Since support for LSX and LASX is landed in QEMU recently, we can update
HWCAPS accordingly.

Signed-off-by: Jiajie Chen <c@jia.je>
---
  linux-user/elfload.c | 8 ++++++++
  1 file changed, 8 insertions(+)

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index db75cd4b33..f11f25309e 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1237,6 +1237,14 @@ static uint32_t get_elf_hwcap(void)
          hwcaps |= HWCAP_LOONGARCH_LAM;
      }
+ if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, LSX)) {
+        hwcaps |= HWCAP_LOONGARCH_LSX;
+    }
+
+    if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, LASX)) {
+        hwcaps |= HWCAP_LOONGARCH_LASX;
+    }
+
      return hwcaps;
  }

Queued to linux-user-next.


r~



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