| Message ID | 20220207152109.197566-31-broonie@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 6d51b18865c65390973e6ed0aec20239cf475489 |
| Headers | show |
| Series | arm64/sme: Initial support for the Scalable Matrix Extension | expand |
On 2/7/22 8:20 AM, Mark Brown wrote: > As for the kernel so that we don't have ambitious toolchain requirements > to build the tests manually encode some of the SVE instructions. > Thank you for thinking about toolchain requirements. Please add a bit more information on how these defines are used here in this commit log. > Signed-off-by: Mark Brown <broonie@kernel.org> > --- Rest looks good to me. Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> thanks, -- Shuah
On Mon, Feb 07, 2022 at 03:20:59PM +0000, Mark Brown wrote: > As for the kernel so that we don't have ambitious toolchain requirements > to build the tests manually encode some of the SVE instructions. > > Signed-off-by: Mark Brown <broonie@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
diff --git a/tools/testing/selftests/arm64/fp/sme-inst.h b/tools/testing/selftests/arm64/fp/sme-inst.h new file mode 100644 index 000000000000..7191e53ca1c0 --- /dev/null +++ b/tools/testing/selftests/arm64/fp/sme-inst.h @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (C) 2021-2 ARM Limited. +// Original author: Mark Brown <broonie@kernel.org> + +#ifndef SME_INST_H +#define SME_INST_H + +/* + * RDSVL X\nx, #\imm + */ +.macro rdsvl nx, imm + .inst 0x4bf5800 \ + | (\imm << 5) \ + | (\nx) +.endm + +.macro smstop + msr S0_3_C4_C6_3, xzr +.endm + +.macro smstart_za + msr S0_3_C4_C5_3, xzr +.endm + +.macro smstart_sm + msr S0_3_C4_C3_3, xzr +.endm + +/* + * LDR (vector to ZA array): + * LDR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL] + */ +.macro _ldr_za nw, nxbase, offset=0 + .inst 0xe1000000 \ + | (((\nw) & 3) << 13) \ + | ((\nxbase) << 5) \ + | ((\offset) & 7) +.endm + +/* + * STR (vector from ZA array): + * STR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL] + */ +.macro _str_za nw, nxbase, offset=0 + .inst 0xe1200000 \ + | (((\nw) & 3) << 13) \ + | ((\nxbase) << 5) \ + | ((\offset) & 7) +.endm + +#endif
As for the kernel so that we don't have ambitious toolchain requirements to build the tests manually encode some of the SVE instructions. Signed-off-by: Mark Brown <broonie@kernel.org> --- tools/testing/selftests/arm64/fp/sme-inst.h | 51 +++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 tools/testing/selftests/arm64/fp/sme-inst.h