linux-kernel - [PATCH 1/2] docs: riscv: Clarify risc-v hwprobe RISCV_HWPROBE_MISALIGNED

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Date: Sun, 19 May 2024 00:00:11 +0800
From: Yangyu Chen <cyy@...self.name>
To: linux-riscv@...ts.infradead.org
Cc: Elliott Hughes <enh@...gle.com>,
	Charlie Jenkins <charlie@...osinc.com>,
	Jonathan Corbet <corbet@....net>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Evan Green <evan@...osinc.com>,
	Clément Léger <cleger@...osinc.com>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Andrew Jones <ajones@...tanamicro.com>,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	Yangyu Chen <cyy@...self.name>
Subject: [PATCH 1/2] docs: riscv: Clarify risc-v hwprobe RISCV_HWPROBE_MISALIGNED_* docs.

From: enh <enh@...gle.com>

These only tell you about scalar accesses, not vector accesses.

Signed-off-by: Elliott Hughes <enh@...gle.com>
Reviewed-by: Charlie Jenkins <charlie@...osinc.com>
Signed-off-by: Yangyu Chen <cyy@...self.name>
---
 Documentation/arch/riscv/hwprobe.rst | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst
index b2bcc9eed9aa..239be63f5089 100644
--- a/Documentation/arch/riscv/hwprobe.rst
+++ b/Documentation/arch/riscv/hwprobe.rst
@@ -192,21 +192,21 @@ The following keys are defined:
   information about the selected set of processors.
 
   * :c:macro:`RISCV_HWPROBE_MISALIGNED_UNKNOWN`: The performance of misaligned
-    accesses is unknown.
+    scalar accesses is unknown.
 
-  * :c:macro:`RISCV_HWPROBE_MISALIGNED_EMULATED`: Misaligned accesses are
+  * :c:macro:`RISCV_HWPROBE_MISALIGNED_EMULATED`: Misaligned scalar accesses are
     emulated via software, either in or below the kernel.  These accesses are
     always extremely slow.
 
-  * :c:macro:`RISCV_HWPROBE_MISALIGNED_SLOW`: Misaligned accesses are slower
-    than equivalent byte accesses.  Misaligned accesses may be supported
+  * :c:macro:`RISCV_HWPROBE_MISALIGNED_SLOW`: Misaligned scalar accesses are
+    slower than equivalent byte accesses.  Misaligned accesses may be supported
     directly in hardware, or trapped and emulated by software.
 
-  * :c:macro:`RISCV_HWPROBE_MISALIGNED_FAST`: Misaligned accesses are faster
-    than equivalent byte accesses.
+  * :c:macro:`RISCV_HWPROBE_MISALIGNED_FAST`: Misaligned scalar accesses are
+    faster than equivalent byte accesses.
 
-  * :c:macro:`RISCV_HWPROBE_MISALIGNED_UNSUPPORTED`: Misaligned accesses are
-    not supported at all and will generate a misaligned address fault.
+  * :c:macro:`RISCV_HWPROBE_MISALIGNED_UNSUPPORTED`: Misaligned scalar accesses
+    are not supported at all and will generate a misaligned address fault.
 
 * :c:macro:`RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE`: An unsigned int which
   represents the size of the Zicboz block in bytes.
-- 
2.43.0