diff options
| author | Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> | 2013-08-13 18:57:53 +0400 |
|---|---|---|
| committer | Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> | 2013-09-26 12:47:43 +0400 |
| commit | 46efe547aca8498d51b64460c02366ae4032ca32 (patch) | |
| tree | d5134896a4f93eacd8ad49d01472f4da232991ec /arch/arm64/kernel | |
| parent | e9faebc66ec74f1ab7f267d683b45e80faa69763 (diff) | |
| download | linux-46efe547aca8498d51b64460c02366ae4032ca32.tar.xz | |
ARM64: arch_timer: add support to configure and enable event stream
This patch adds support for configuring the event stream frequency
and enabling it.
It also adds the hwcaps as well as compat-specific definitions to
the user to detect this event stream feature.
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/setup.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 055cfb80e05c..d355b7b9710b 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -60,6 +60,16 @@ EXPORT_SYMBOL(processor_id); unsigned long elf_hwcap __read_mostly; EXPORT_SYMBOL_GPL(elf_hwcap); +#ifdef CONFIG_COMPAT +#define COMPAT_ELF_HWCAP_DEFAULT \ + (COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\ + COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\ + COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\ + COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\ + COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV) +unsigned int compat_elf_hwcap __read_mostly = COMPAT_ELF_HWCAP_DEFAULT; +#endif + static const char *cpu_name; static const char *machine_name; phys_addr_t __fdt_pointer __initdata; @@ -304,6 +314,7 @@ subsys_initcall(topology_init); static const char *hwcap_str[] = { "fp", "asimd", + "evtstrm", NULL }; |