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[PULL 04/14] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() ma
From: |
Laurent Vivier |
Subject: |
[PULL 04/14] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() macro |
Date: |
Fri, 18 Dec 2020 11:23:57 +0100 |
From: Philippe Mathieu-Daudé <f4bug@amsat.org>
ISA features are usually denoted in read-only bits from
CPU registers. Add the GET_FEATURE_REG_SET() macro which
checks if a CPU register has bits set.
Use the macro to check for MSA (which sets the MSAP bit of
the Config3 register when the ASE implementation is present).
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214003215.344522-4-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
linux-user/elfload.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 0e1d7e7677c8..b7c6d30723a3 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -992,17 +992,21 @@ enum {
#define GET_FEATURE_INSN(_flag, _hwcap) \
do { if (cpu->env.insn_flags & (_flag)) { hwcaps |= _hwcap; } } while (0)
+#define GET_FEATURE_REG_SET(_reg, _mask, _hwcap) \
+ do { if (cpu->env._reg & (_mask)) { hwcaps |= _hwcap; } } while (0)
+
static uint32_t get_elf_hwcap(void)
{
MIPSCPU *cpu = MIPS_CPU(thread_cpu);
uint32_t hwcaps = 0;
GET_FEATURE_INSN(ISA_MIPS32R6 | ISA_MIPS64R6, HWCAP_MIPS_R6);
- GET_FEATURE_INSN(ASE_MSA, HWCAP_MIPS_MSA);
+ GET_FEATURE_REG_SET(CP0_Config3, 1 << CP0C3_MSAP, HWCAP_MIPS_MSA);
return hwcaps;
}
+#undef GET_FEATURE_REG_SET
#undef GET_FEATURE_INSN
#endif /* TARGET_MIPS */
--
2.29.2
- [PULL 00/14] Linux user for 6.0 patches, Laurent Vivier, 2020/12/18
- [PULL 01/14] linux-user/mmap.c: check range of mremap result in target address space, Laurent Vivier, 2020/12/18
- [PULL 04/14] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() macro,
Laurent Vivier <=
- [PULL 02/14] linux-user/elfload: Move GET_FEATURE macro out of get_elf_hwcap() body, Laurent Vivier, 2020/12/18
- [PULL 05/14] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_EQU() macro, Laurent Vivier, 2020/12/18
- [PULL 10/14] linux-user: Add most IFTUN ioctls, Laurent Vivier, 2020/12/18
- [PULL 03/14] linux-user/elfload: Rename MIPS GET_FEATURE() as GET_FEATURE_INSN(), Laurent Vivier, 2020/12/18
- [PULL 09/14] linux-user: Implement copy_file_range, Laurent Vivier, 2020/12/18
- [PULL 06/14] linux-user/elfload: Update HWCAP bits from linux 5.7, Laurent Vivier, 2020/12/18
- [PULL 11/14] linux-user/sparc: Correct sparc64_get/set_context() FPU handling, Laurent Vivier, 2020/12/18
- [PULL 12/14] linux-user/sparc: Remove unneeded checks of 'err' from sparc64_get_context(), Laurent Vivier, 2020/12/18
- [PULL 14/14] linux-user/sparc: Handle tstate in sparc64_get/set_context(), Laurent Vivier, 2020/12/18
- [PULL 08/14] docs/user: Display linux-user binaries nicely, Laurent Vivier, 2020/12/18