[PATCH v2] ARM64: kernel: add compatible cpuinfo

From: Neil Zhang
Date: Tue May 13 2014 - 23:08:49 EST


Print the necessary features in order to be backwards compatible with
ARMv7 and earlier version.

Signed-off-by: Neil Zhang <zhangwm@xxxxxxxxxxx>
---
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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/