linux-kernel - [PATCH 5.10 045/103] kselftest/arm64: signal: Add SVE to the set of features we can check for

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Message-Id: <20210927170227.311035037@linuxfoundation.org>
Date:   Mon, 27 Sep 2021 19:02:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 045/103] kselftest/arm64: signal: Add SVE to the set of features we can check for

From: Mark Brown <broonie@...nel.org>

[ Upstream commit d4e4dc4fab686c5f3f185272a19b83930664bef5 ]

Allow testcases for SVE signal handling to flag the dependency and be
skipped on systems without SVE support.

Signed-off-by: Mark Brown <broonie@...nel.org>
Link: https://lore.kernel.org/r/20210819134245.13935-2-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/arm64/signal/test_signals.h       | 2 ++
 tools/testing/selftests/arm64/signal/test_signals_utils.c | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/tools/testing/selftests/arm64/signal/test_signals.h b/tools/testing/selftests/arm64/signal/test_signals.h
index f96baf1cef1a..ebe8694dbef0 100644
--- a/tools/testing/selftests/arm64/signal/test_signals.h
+++ b/tools/testing/selftests/arm64/signal/test_signals.h
@@ -33,10 +33,12 @@
  */
 enum {
 	FSSBS_BIT,
+	FSVE_BIT,
 	FMAX_END
 };
 
 #define FEAT_SSBS		(1UL << FSSBS_BIT)
+#define FEAT_SVE		(1UL << FSVE_BIT)
 
 /*
  * A descriptor used to describe and configure a test case.
diff --git a/tools/testing/selftests/arm64/signal/test_signals_utils.c b/tools/testing/selftests/arm64/signal/test_signals_utils.c
index 2de6e5ed5e25..6836510a522f 100644
--- a/tools/testing/selftests/arm64/signal/test_signals_utils.c
+++ b/tools/testing/selftests/arm64/signal/test_signals_utils.c
@@ -26,6 +26,7 @@ static int sig_copyctx = SIGTRAP;
 
 static char const *const feats_names[FMAX_END] = {
 	" SSBS ",
+	" SVE ",
 };
 
 #define MAX_FEATS_SZ	128
@@ -263,6 +264,8 @@ int test_init(struct tdescr *td)
 		 */
 		if (getauxval(AT_HWCAP) & HWCAP_SSBS)
 			td->feats_supported |= FEAT_SSBS;
+		if (getauxval(AT_HWCAP) & HWCAP_SVE)
+			td->feats_supported |= FEAT_SVE;
 		if (feats_ok(td))
 			fprintf(stderr,
 				"Required Features: [%s] supported\n",
-- 
2.33.0