[PATCH v1 04/10] tests/tcg: add memory-sve test for aarch64

[PATCH v1 04/10] tests/tcg: add memory-sve test for aarch64

[Alex Bennée]

This will be helpful in debugging problems with tracking SVE memory
accesses via the TCG plugins system.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Robert Henry <robhenry@microsoft.com>
Cc: Aaron Lindsay <aaron@os.amperecomputing.com>
---
 tests/tcg/aarch64/Makefile.softmmu-target | 7 +++++++
 tests/tcg/aarch64/system/boot.S           | 3 ++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/tcg/aarch64/Makefile.softmmu-target b/tests/tcg/aarch64/Makefile.softmmu-target
index f6fcd4829e..26701b718c 100644
--- a/tests/tcg/aarch64/Makefile.softmmu-target
+++ b/tests/tcg/aarch64/Makefile.softmmu-target
@@ -31,6 +31,13 @@ LDFLAGS+=-static -nostdlib $(CRT_OBJS) $(MINILIB_OBJS) -lgcc
 
 memory: CFLAGS+=-DCHECK_UNALIGNED=1
 
+memory-sve: memory.c $(LINK_SCRIPT) $(CRT_OBJS) $(MINILIB_OBJS)
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $< -o $@ $(LDFLAGS)
+
+memory-sve: CFLAGS+=-DCHECK_UNALIGNED=1 -march=armv8.1-a+sve -O3 -fno-tree-loop-distribute-patterns
+
+TESTS+=memory-sve
+
 # Running
 QEMU_BASE_MACHINE=-M virt -cpu max -display none
 QEMU_OPTS+=$(QEMU_BASE_MACHINE) -semihosting-config enable=on,target=native,chardev=output -kernel
diff --git a/tests/tcg/aarch64/system/boot.S b/tests/tcg/aarch64/system/boot.S
index e190b1efa6..f136363d2a 100644
--- a/tests/tcg/aarch64/system/boot.S
+++ b/tests/tcg/aarch64/system/boot.S
@@ -179,12 +179,13 @@ __start:
 	isb
 
 	/*
-	 * Enable FP registers. The standard C pre-amble will be
+	 * Enable FP/SVE registers. The standard C pre-amble will be
 	 * saving these and A-profile compilers will use AdvSIMD
 	 * registers unless we tell it not to.
 	*/
 	mrs	x0, cpacr_el1
 	orr	x0, x0, #(3 << 20)
+	orr	x0, x0, #(3 << 16)
 	msr	cpacr_el1, x0
 
 	/* Setup some stack space and enter the test code.
-- 
2.34.1

Re: [PATCH v1 04/10] tests/tcg: add memory-sve test for aarch64

[Richard Henderson]

On 9/21/22 09:07, Alex Bennée wrote:
> This will be helpful in debugging problems with tracking SVE memory
> accesses via the TCG plugins system.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Cc: Robert Henry <robhenry@microsoft.com>
> Cc: Aaron Lindsay <aaron@os.amperecomputing.com>
> ---
>   tests/tcg/aarch64/Makefile.softmmu-target | 7 +++++++
>   tests/tcg/aarch64/system/boot.S           | 3 ++-
>   2 files changed, 9 insertions(+), 1 deletion(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~