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Message-ID: <20241022004710.1888067-3-rananta@google.com>
Date: Tue, 22 Oct 2024 00:47:09 +0000
From: Raghavendra Rao Ananta <rananta@...gle.com>
To: Subhasish Ghosh <subhasish.ghosh@....com>, Joey Gouly <joey.gouly@....com>,
Andrew Jones <andrew.jones@...ux.dev>
Cc: Oliver Upton <oliver.upton@...ux.dev>, Marc Zyngier <maz@...nel.org>,
Raghavendra Rao Anata <rananta@...gle.com>, linux-arm-kernel@...ts.infradead.org,
kvmarm@...ts.linux.dev, linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [kvm-unit-tests PATCH 2/3] arm: fpu: Convert 'q' registers to 'v' to
satisfy clang
Clang doesn't seem to support 'q' register notation in the clobbered
list, and hence throws the following error:
arm/fpu.c:235:3: error: unknown register name 'q0' in asm
fpu_reg_read(outdata);
^
arm/fpu.c:59:10: note: expanded from macro 'fpu_reg_read'
: "q0", "q1", "q2", "q3", \
^
arm/fpu.c:281:3: error: unknown register name 'q0' in asm
fpu_reg_write(*indata);
^
arm/fpu.c:92:10: note: expanded from macro 'fpu_reg_write'
: "q0", "q1", "q2", "q3", \
^
2 errors generated.
Hence, replace 'q' with 'v' registers for the clobbered list.
Fixes: d47d370c8f ("arm: Add test for FPU/SIMD context save/restore")
Signed-off-by: Raghavendra Rao Ananta <rananta@...gle.com>
---
arm/fpu.c | 40 ++++++++++++++++++++--------------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/arm/fpu.c b/arm/fpu.c
index edbd9a94..587b6ea3 100644
--- a/arm/fpu.c
+++ b/arm/fpu.c
@@ -56,16 +56,16 @@ static inline bool arch_collect_entropy(uint64_t *random)
"stp q30, q31, [%0], #32\n\t" \
: "=r" (__val) \
: \
- : "q0", "q1", "q2", "q3", \
- "q4", "q5", "q6", "q7", \
- "q8", "q9", "q10", "q11", \
- "q12", "q13", "q14", \
- "q15", "q16", "q17", \
- "q18", "q19", "q20", \
- "q21", "q22", "q23", \
- "q24", "q25", "q26", \
- "q27", "q28", "q29", \
- "q30", "q31", "memory"); \
+ : "v0", "v1", "v2", "v3", \
+ "v4", "v5", "v6", "v7", \
+ "v8", "v9", "v10", "v11", \
+ "v12", "v13", "v14", \
+ "v15", "v16", "v17", \
+ "v18", "v19", "v20", \
+ "v21", "v22", "v23", \
+ "v24", "v25", "v26", \
+ "v27", "v28", "v29", \
+ "v30", "v31", "memory"); \
})
#define fpu_reg_write(val) \
@@ -89,16 +89,16 @@ do { \
"ldp q30, q31, [%0], #32\n\t" \
: \
: "r" (__val) \
- : "q0", "q1", "q2", "q3", \
- "q4", "q5", "q6", "q7", \
- "q8", "q9", "q10", "q11", \
- "q12", "q13", "q14", \
- "q15", "q16", "q17", \
- "q18", "q19", "q20", \
- "q21", "q22", "q23", \
- "q24", "q25", "q26", \
- "q27", "q28", "q29", \
- "q30", "q31", "memory"); \
+ : "v0", "v1", "v2", "v3", \
+ "v4", "v5", "v6", "v7", \
+ "v8", "v9", "v10", "v11", \
+ "v12", "v13", "v14", \
+ "v15", "v16", "v17", \
+ "v18", "v19", "v20", \
+ "v21", "v22", "v23", \
+ "v24", "v25", "v26", \
+ "v27", "v28", "v29", \
+ "v30", "v31", "memory"); \
} while (0)
#ifdef CC_HAS_SVE
--
2.47.0.105.g07ac214952-goog
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