From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH 3/3] arm64/signal: Always allocate SVE signal frames on SME only systems
Date: Tue, 27 Dec 2022 17:12:06 +0000 [thread overview]
Message-ID: <20221223-arm64-fix-sme-only-v1-3-938d663f69e5@kernel.org> (raw)
In-Reply-To: <20221223-arm64-fix-sme-only-v1-0-938d663f69e5@kernel.org>
Currently we only allocate space for SVE signal frames on systems that
support SVE, meaning that SME only systems do not allocate a signal frame
for streaming mode SVE state. Change the check so space is allocated if
either feature is supported.
Fixes: 85ed24dad29 ("arm64/sme: Implement streaming SVE signal handling")
Signed-off-by: Mark Brown <broonie@kernel.org>
---
arch/arm64/kernel/signal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index f90ee2dc413c..be279fd48248 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -737,7 +737,7 @@ static int setup_sigframe_layout(struct rt_sigframe_user_layout *user,
return err;
}
- if (system_supports_sve()) {
+ if (system_supports_sve() || system_supports_sme()) {
unsigned int vq = 0;
if (add_all || test_thread_flag(TIF_SVE) ||
--
2.30.2
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next prev parent reply other threads:[~2022-12-27 17:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-27 17:12 [PATCH 0/3] arm64/sme: Fixes for SME only support Mark Brown
2022-12-27 17:12 ` [PATCH 1/3] arm64/sme: Fix context switch for SME only systems Mark Brown
2022-12-27 17:12 ` [PATCH 2/3] arm64/signal: Always accept SVE signal frames on " Mark Brown
2022-12-27 17:12 ` Mark Brown [this message]
2023-01-05 15:22 ` [PATCH 0/3] arm64/sme: Fixes for SME only support Will Deacon
2023-01-05 15:29 ` Will Deacon
2023-01-05 16:00 ` Mark Brown
2023-01-05 15:47 ` Mark Brown
2023-01-05 18:03 ` Will Deacon
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