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| author | Len Brown <len.brown@intel.com> | 2013-11-09 00:30:17 -0500 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-11-12 23:13:50 +0100 |
| commit | fab04b2208dd1d4121319f0096c5a5f4b70abc54 (patch) | |
| tree | f014dad6b4b4dea6cfc0c2a4100ec0767fe8e7d0 /drivers/idle | |
| parent | f612a4fbdc8d6c77eb3721557f64bf0653ee5299 (diff) | |
| download | linux-stable-fab04b2208dd1d4121319f0096c5a5f4b70abc54.tar.gz linux-stable-fab04b2208dd1d4121319f0096c5a5f4b70abc54.tar.bz2 linux-stable-fab04b2208dd1d4121319f0096c5a5f4b70abc54.zip | |
intel_idle: Support Intel Atom Processor C2000 Product Family
Support the "Intel(R) Atom(TM) Processor C2000 Product Family",
formerly code-named Avoton. It is based on the next generation
Intel Atom processor architecture, formerly code-named Silvermont.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/intel_idle.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 3f95a533c1a8..afd3c683c73b 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1,7 +1,7 @@ /* * intel_idle.c - native hardware idle loop for modern Intel processors * - * Copyright (c) 2010, Intel Corporation. + * Copyright (c) 2013, Intel Corporation. * Len Brown <len.brown@intel.com> * * This program is free software; you can redistribute it and/or modify it @@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[] __initdata = { { .enter = NULL } }; +static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = { + { + .name = "C1-AVN", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID, + .exit_latency = 2, + .target_residency = 2, + .enter = &intel_idle }, + { + .name = "C6-AVN", + .desc = "MWAIT 0x51", + .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 15, + .target_residency = 45, + .enter = &intel_idle }, +}; /** * intel_idle @@ -462,6 +478,11 @@ static const struct idle_cpu idle_cpu_hsw = { .disable_promotion_to_c1e = true, }; +static const struct idle_cpu idle_cpu_avn = { + .state_table = avn_cstates, + .disable_promotion_to_c1e = true, +}; + #define ICPU(model, cpu) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu } @@ -483,6 +504,7 @@ static const struct x86_cpu_id intel_idle_ids[] = { ICPU(0x3f, idle_cpu_hsw), ICPU(0x45, idle_cpu_hsw), ICPU(0x46, idle_cpu_hsw), + ICPU(0x4D, idle_cpu_avn), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids); |