system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-20 11:07:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

selftests/arm64: add HWCAP2_HBC test

Browse source 
Add a test for the newly added HWCAP2_HBC.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230804143746.3900803-3-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Joey Gouly 2023-08-04 15:37:46 +01:00 committed by Will Deacon
parent 7f86d128e4
commit d70175b147
1 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
tools/testing/selftests/arm64/abi/hwcap.c
View file

@ -208,6 +208,13 @@ static void svebf16_sigill(void)
asm volatile(".inst 0x658aa000" : : : "z0");
}
static void hbc_sigill(void)
{
/* BC.EQ +4 */
asm volatile("cmp xzr, xzr\n"
".inst 0x54000030" : : : "cc");
}
static const struct hwcap_data {
const char *name;
unsigned long at_hwcap;
@ -386,6 +393,14 @@ static const struct hwcap_data {
.hwcap_bit = HWCAP2_SVE_EBF16,
.cpuinfo = "sveebf16",
},
{
.name = "HBC",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_HBC,
.cpuinfo = "hbc",
.sigill_fn = hbc_sigill,
.sigill_reliable = true,
},
};
static bool seen_sigill;