diff options
| author | Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> | 2013-08-13 15:57:53 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-05-05 16:10:03 -0700 |
| commit | c0de5b36d18b207a670e1a75e4e2e7fc1a0a7320 (patch) | |
| tree | d26c4d6a34d0d042db2a3d4df21cae86058aef59 /arch/arm64/kernel/setup.c | |
| parent | 59969c6b7526a44ad61e2433aadb701082736f25 (diff) | |
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>
(cherry picked from commit 46efe547aca8498d51b64460c02366ae4032ca32)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Conflicts:
arch/arm64/include/asm/arch_timer.h
Diffstat (limited to 'arch/arm64/kernel/setup.c')
| -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 add6ea616843..57cb0063d74c 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -60,6 +60,16 @@ EXPORT_SYMBOL(processor_id); unsigned int 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; @@ -309,6 +319,7 @@ subsys_initcall(topology_init); static const char *hwcap_str[] = { "fp", "asimd", + "evtstrm", NULL }; |