* [PATCH] ARM64: kernel: add compatable cpuinfo
@ 2014-05-14 2:59 Neil Zhang
2014-05-14 3:09 ` Neil Zhang
0 siblings, 1 reply; 2+ messages in thread
From: Neil Zhang @ 2014-05-14 2:59 UTC (permalink / raw)
To: linux-arm-kernel, linux-kernel; +Cc: catalin.marinas, will.deacon, Neil Zhang
Print the necessary features in order to be backwards compatable with
ARMv7 and earlier version.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
---
arch/arm64/kernel/setup.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 7ec7846..a09ecfe 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -451,6 +451,11 @@ static int c_show(struct seq_file *m, void *v)
if (elf_hwcap & (1 << i))
seq_printf(m, "%s ", hwcap_str[i]);
+#ifdef CONFIG_COMPAT
+ seq_puts(m, "half thumb fastmult edsp tls vfp vfpv3 vfpv4 neon ");
+ seq_puts(m, "idiva idivt ");
+#endif
+
seq_printf(m, "\nCPU implementer\t: 0x%02x\n", read_cpuid_id() >> 24);
seq_printf(m, "CPU architecture: AArch64\n");
seq_printf(m, "CPU variant\t: 0x%x\n", (read_cpuid_id() >> 20) & 15);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* RE: [PATCH] ARM64: kernel: add compatable cpuinfo
2014-05-14 2:59 [PATCH] ARM64: kernel: add compatable cpuinfo Neil Zhang
@ 2014-05-14 3:09 ` Neil Zhang
0 siblings, 0 replies; 2+ messages in thread
From: Neil Zhang @ 2014-05-14 3:09 UTC (permalink / raw)
To: Neil Zhang, linux-arm-kernel, linux-kernel; +Cc: catalin.marinas, will.deacon
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> -----Original Message-----
> From: Neil Zhang [mailto:zhangwm@marvell.com]
> Sent: 2014Äê5ÔÂ14ÈÕ 11:00
> To: linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org
> Cc: catalin.marinas@arm.com; will.deacon@arm.com; Neil Zhang
> Subject: [PATCH] ARM64: kernel: add compatable cpuinfo
>
Fix typo in version 2.
> Print the necessary features in order to be backwards compatable with
> ARMv7 and earlier version.
>
> Signed-off-by: Neil Zhang <zhangwm@marvell.com>
> ---
> arch/arm64/kernel/setup.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index
> 7ec7846..a09ecfe 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -451,6 +451,11 @@ static int c_show(struct seq_file *m, void *v)
> if (elf_hwcap & (1 << i))
> seq_printf(m, "%s ", hwcap_str[i]);
>
> +#ifdef CONFIG_COMPAT
> + seq_puts(m, "half thumb fastmult edsp tls vfp vfpv3 vfpv4 neon ");
> + seq_puts(m, "idiva idivt ");
> +#endif
> +
> seq_printf(m, "\nCPU implementer\t: 0x%02x\n", read_cpuid_id() >>
> 24);
> seq_printf(m, "CPU architecture: AArch64\n");
> seq_printf(m, "CPU variant\t: 0x%x\n", (read_cpuid_id() >> 20) & 15);
> --
> 1.7.9.5
Best Regards,
Neil Zhang
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