linux-kernel - [PATCH v4 9/9] selftest: run vector prctl test for ZVE32X

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Message-Id: <20240412-zve-detection-v4-9-e0c45bb6b253@sifive.com>
Date: Fri, 12 Apr 2024 14:49:05 +0800
From: Andy Chiu <andy.chiu@...ive.com>
To: Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Conor Dooley <conor.dooley@...rochip.com>, Heiko Stuebner <heiko@...ech.de>, 
 Andy Chiu <andy.chiu@...ive.com>, Guo Ren <guoren@...nel.org>, 
 Conor Dooley <conor@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Jonathan Corbet <corbet@....net>, Evan Green <evan@...osinc.com>, 
 Clément Léger <cleger@...osinc.com>, 
 Shuah Khan <shuah@...nel.org>
Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Palmer Dabbelt <palmer@...osinc.com>, 
 Vincent Chen <vincent.chen@...ive.com>, 
 Greentime Hu <greentime.hu@...ive.com>, devicetree@...r.kernel.org, 
 linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v4 9/9] selftest: run vector prctl test for ZVE32X

The minimal requirement for running Vector subextension on Linux is
ZVE32X. So change the test accordingly to run prctl as long as it find
it.

Signed-off-by: Andy Chiu <andy.chiu@...ive.com>
---
Changelog v4:
 - new patch since v4
---
 tools/testing/selftests/riscv/vector/vstate_prctl.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/riscv/vector/vstate_prctl.c b/tools/testing/selftests/riscv/vector/vstate_prctl.c
index 27668fb3b6d0..895177f6bf4c 100644
--- a/tools/testing/selftests/riscv/vector/vstate_prctl.c
+++ b/tools/testing/selftests/riscv/vector/vstate_prctl.c
@@ -88,16 +88,16 @@ int main(void)
 		return -2;
 	}
 
-	if (!(pair.value & RISCV_HWPROBE_IMA_V)) {
+	if (!(pair.value & RISCV_HWPROBE_EXT_ZVE32X)) {
 		rc = prctl(PR_RISCV_V_GET_CONTROL);
 		if (rc != -1 || errno != EINVAL) {
-			ksft_test_result_fail("GET_CONTROL should fail on kernel/hw without V\n");
+			ksft_test_result_fail("GET_CONTROL should fail on kernel/hw without ZVE32X\n");
 			return -3;
 		}
 
 		rc = prctl(PR_RISCV_V_SET_CONTROL, PR_RISCV_V_VSTATE_CTRL_ON);
 		if (rc != -1 || errno != EINVAL) {
-			ksft_test_result_fail("GET_CONTROL should fail on kernel/hw without V\n");
+			ksft_test_result_fail("SET_CONTROL should fail on kernel/hw without ZVE32X\n");
 			return -4;
 		}
 

-- 
2.44.0.rc2