From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: Julien Grall <julien@xen.org>,
Zhang Lei <zhang.lei@jp.fujitsu.com>,
Julien Grall <julien.grall@arm.com>,
Mark Brown <broonie@kernel.org>,
Dave Martin <Dave.Martin@arm.com>,
linux-arm-kernel@lists.infradead.org,
Daniel Kiss <Daniel.Kiss@arm.com>
Subject: [PATCH v4 2/8] arm64/signal: Update the comment in preserve_sve_context
Date: Fri, 28 Aug 2020 19:11:49 +0100 [thread overview]
Message-ID: <20200828181155.17745-3-broonie@kernel.org> (raw)
In-Reply-To: <20200828181155.17745-1-broonie@kernel.org>
From: Julien Grall <julien.grall@arm.com>
The SVE state is saved by fpsimd_signal_preserve_current_state() and not
preserve_fpsimd_context(). Update the comment in preserve_sve_context to
reflect the current behavior.
Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
arch/arm64/kernel/signal.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index 3b4f31f35e45..f3af68dc1cf8 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -244,7 +244,8 @@ static int preserve_sve_context(struct sve_context __user *ctx)
if (vq) {
/*
* This assumes that the SVE state has already been saved to
- * the task struct by calling preserve_fpsimd_context().
+ * the task struct by calling the function
+ * fpsimd_signal_preserve_current_state().
*/
err |= __copy_to_user((char __user *)ctx + SVE_SIG_REGS_OFFSET,
current->thread.sve_state,
--
2.20.1
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next prev parent reply other threads:[~2020-08-28 18:16 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 18:11 [PATCH v4 0/8] arm64/sve: First steps towards optimizing syscalls Mark Brown
2020-08-28 18:11 ` [PATCH v4 1/8] arm64/fpsimd: Update documentation of do_sve_acc Mark Brown
2020-08-28 18:11 ` Mark Brown [this message]
2020-08-28 18:11 ` [PATCH v4 3/8] arm64/fpsimdmacros: Allow the macro "for" to be used in more cases Mark Brown
2020-09-21 12:38 ` Will Deacon
2020-09-21 16:53 ` Dave Martin
2020-09-21 18:09 ` Mark Brown
2020-09-22 13:51 ` Dave Martin
2020-09-22 13:59 ` Mark Brown
2020-09-22 14:07 ` Dave Martin
2020-08-28 18:11 ` [PATCH v4 4/8] arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN Mark Brown
2020-08-28 18:11 ` [PATCH v4 5/8] arm64/sve: Implement a helper to flush SVE registers Mark Brown
2020-08-28 18:11 ` [PATCH v4 6/8] arm64/sve: Implement a helper to load SVE registers from FPSIMD state Mark Brown
2020-08-28 18:11 ` [PATCH v4 7/8] arm64/sve: Don't disable SVE on syscalls return Mark Brown
2020-09-21 12:36 ` Will Deacon
2020-09-21 18:03 ` Mark Brown
2020-09-22 14:03 ` Dave Martin
2020-09-22 16:04 ` Mark Brown
2020-08-28 18:11 ` [PATCH v4 8/8] arm64/sve: Rework SVE trap access to use TIF_SVE_NEEDS_FLUSH Mark Brown
2020-09-21 12:42 ` [PATCH v4 0/8] arm64/sve: First steps towards optimizing syscalls Will Deacon
2020-09-21 12:56 ` Mark Brown
2020-09-21 13:08 ` Will Deacon
2020-09-21 18:17 ` Will Deacon
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