This series fixes an output formatting issue then adds a bunch more hwcaps to the hwcaps test. This includes the recently added SVE EBF16 hwcap so this requires both for-next/kselftest and for-next/sve.
Mark Brown (3): kselftest/arm64: Add missing newline in hwcap output kselftest/arm64: Add SVE 2 to the tested hwcaps kselftest/arm64: Add hwcap test for RNG
tools/testing/selftests/arm64/abi/hwcap.c | 150 +++++++++++++++++++++- 1 file changed, 149 insertions(+), 1 deletion(-)
base-commit: daecb3077f330058d1c53de32d272bc23ff61a25
Clean up the output of the test by adding a missing newline, the fix had been done locally but didn't make it into the applied version.
Signed-off-by: Mark Brown broonie@kernel.org --- tools/testing/selftests/arm64/abi/hwcap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 8b5c646cea63..04e4a81dd159 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -151,7 +151,7 @@ int main(void) have_cpuinfo = cpuinfo_present(hwcap->cpuinfo);
if (have_hwcap) - ksft_print_msg("%s present", hwcap->name); + ksft_print_msg("%s present\n", hwcap->name);
ksft_test_result(have_hwcap == have_cpuinfo, "cpuinfo_match_%s\n", hwcap->name);
Include SVE 2 and the various subfeatures it adds in the set of hwcaps we check for.
Signed-off-by: Mark Brown broonie@kernel.org --- tools/testing/selftests/arm64/abi/hwcap.c | 136 ++++++++++++++++++++++ 1 file changed, 136 insertions(+)
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 04e4a81dd159..6c91b4a0987e 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -45,6 +45,66 @@ static void sve_sigill(void) asm volatile(".inst 0x04bf5000" : : : "x0"); }
+static void sve2_sigill(void) +{ + /* SQABS Z0.b, P0/M, Z0.B */ + asm volatile(".inst 0x4408A000" : : : "z0"); +} + +static void sveaes_sigill(void) +{ + /* AESD z0.b, z0.b, z0.b */ + asm volatile(".inst 0x4522e400" : : : "z0"); +} + +static void svepmull_sigill(void) +{ + /* PMULLB Z0.Q, Z0.D, Z0.D */ + asm volatile(".inst 0x45006800" : : : "z0"); +} + +static void svebitperm_sigill(void) +{ + /* BDEP Z0.B, Z0.B, Z0.B */ + asm volatile(".inst 0x4500b400" : : : "z0"); +} + +static void svesha3_sigill(void) +{ + /* EOR3 Z0.D, Z0.D, Z0.D, Z0.D */ + asm volatile(".inst 0x4203800" : : : "z0"); +} + +static void svesm4_sigill(void) +{ + /* SM4E Z0.S, Z0.S, Z0.S */ + asm volatile(".inst 0x4523e000" : : : "z0"); +} + +static void svei8mm_sigill(void) +{ + /* USDOT Z0.S, Z0.B, Z0.B[0] */ + asm volatile(".inst 0x44a01800" : : : "z0"); +} + +static void svef32mm_sigill(void) +{ + /* FMMLA Z0.S, Z0.S, Z0.S */ + asm volatile(".inst 0x64a0e400" : : : "z0"); +} + +static void svef64mm_sigill(void) +{ + /* FMMLA Z0.D, Z0.D, Z0.D */ + asm volatile(".inst 0x64e0e400" : : : "z0"); +} + +static void svebf16_sigill(void) +{ + /* BFCVT Z0.H, P0/M, Z0.S */ + asm volatile(".inst 0x658aa000" : : : "z0"); +} + static const struct hwcap_data { const char *name; unsigned long at_hwcap; @@ -69,6 +129,82 @@ static const struct hwcap_data { .sigill_fn = sve_sigill, .sigill_reliable = true, }, + { + .name = "SVE 2", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVE2, + .cpuinfo = "sve2", + .sigill_fn = sve2_sigill, + }, + { + .name = "SVE AES", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEAES, + .cpuinfo = "sveaes", + .sigill_fn = sveaes_sigill, + }, + { + .name = "SVE2 PMULL", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEPMULL, + .cpuinfo = "svepmull", + .sigill_fn = svepmull_sigill, + }, + { + .name = "SVE2 BITPERM", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEBITPERM, + .cpuinfo = "svebitperm", + .sigill_fn = svebitperm_sigill, + }, + { + .name = "SVE2 SHA3", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVESHA3, + .cpuinfo = "svesha3", + .sigill_fn = svesha3_sigill, + }, + { + .name = "SVE2 SM4", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVESM4, + .cpuinfo = "svesm4", + .sigill_fn = svesm4_sigill, + }, + { + .name = "SVE2 I8MM", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEI8MM, + .cpuinfo = "svei8mm", + .sigill_fn = svei8mm_sigill, + }, + { + .name = "SVE2 F32MM", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEF32MM, + .cpuinfo = "svef32mm", + .sigill_fn = svef32mm_sigill, + }, + { + .name = "SVE2 F64MM", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEF64MM, + .cpuinfo = "svef64mm", + .sigill_fn = svef64mm_sigill, + }, + { + .name = "SVE2 BF16", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVEBF16, + .cpuinfo = "svebf16", + .sigill_fn = svebf16_sigill, + }, + { + .name = "SVE2 EBF16", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_SVE_EBF16, + .cpuinfo = "sveebf16", + }, };
static bool seen_sigill;
Validate the RNG hwcap and make sure we don't generate a SIGILL reading RNDR when it is reported.
Signed-off-by: Mark Brown broonie@kernel.org --- tools/testing/selftests/arm64/abi/hwcap.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 6c91b4a0987e..d173e41f2123 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -33,6 +33,11 @@ */ typedef void (*sigill_fn)(void);
+static void rng_sigill(void) +{ + asm volatile("mrs x0, S3_3_C2_C4_0" : : : "x0"); +} + static void sme_sigill(void) { /* RDSVL x0, #0 */ @@ -113,6 +118,13 @@ static const struct hwcap_data { sigill_fn sigill_fn; bool sigill_reliable; } hwcaps[] = { + { + .name = "RNG", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_RNG, + .cpuinfo = "rng", + .sigill_fn = rng_sigill, + }, { .name = "SME", .at_hwcap = AT_HWCAP2,
On Tue, 13 Sep 2022 15:10:58 +0100, Mark Brown wrote:
This series fixes an output formatting issue then adds a bunch more hwcaps to the hwcaps test. This includes the recently added SVE EBF16 hwcap so this requires both for-next/kselftest and for-next/sve.
Mark Brown (3): kselftest/arm64: Add missing newline in hwcap output kselftest/arm64: Add SVE 2 to the tested hwcaps kselftest/arm64: Add hwcap test for RNG
[...]
Applied to arm64 (for-next/kselftest), thanks!
[1/3] kselftest/arm64: Add missing newline in hwcap output https://git.kernel.org/arm64/c/78d2b1976b51 [2/3] kselftest/arm64: Add SVE 2 to the tested hwcaps https://git.kernel.org/arm64/c/859a9d51a268 [3/3] kselftest/arm64: Add hwcap test for RNG https://git.kernel.org/arm64/c/ef939f30510b
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