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cpufreq: intel_pstate: Replace BYT with ATOM
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Rename symbol and function names starting with "BYT" or "byt" to
start with "ATOM" or "atom", respectively, so as to make it clear
that they may apply to Atom in general and not just to Baytrail
(the goal is to support several Atoms architectures eventually).

This should not lead to any functional changes.

Signed-off-by: Philippe Longepe <[email protected]>
Signed-off-by: Stephane Gasparini <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
[ rjw : Changelog ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
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@rafaeljw
Philippe Longepe authored and rafaeljw committed Nov 18, 2015
1 parent 6ee11e4 commit 938d21a
Showing 1 changed file with 29 additions and 29 deletions.
58 changes: 29 additions & 29 deletions drivers/cpufreq/intel_pstate.c
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Original file line number Diff line number Diff line change
Expand Up @@ -34,10 +34,10 @@
#include <asm/cpu_device_id.h>
#include <asm/cpufeature.h>

#define BYT_RATIOS 0x66a
#define BYT_VIDS 0x66b
#define BYT_TURBO_RATIOS 0x66c
#define BYT_TURBO_VIDS 0x66d
#define ATOM_RATIOS 0x66a
#define ATOM_VIDS 0x66b
#define ATOM_TURBO_RATIOS 0x66c
#define ATOM_TURBO_VIDS 0x66d

#define FRAC_BITS 8
#define int_tofp(X) ((int64_t)(X) << FRAC_BITS)
Expand Down Expand Up @@ -528,31 +528,31 @@ static void intel_pstate_hwp_enable(struct cpudata *cpudata)
wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1);
}

static int byt_get_min_pstate(void)
static int atom_get_min_pstate(void)
{
u64 value;

rdmsrl(BYT_RATIOS, value);
rdmsrl(ATOM_RATIOS, value);
return (value >> 8) & 0x7F;
}

static int byt_get_max_pstate(void)
static int atom_get_max_pstate(void)
{
u64 value;

rdmsrl(BYT_RATIOS, value);
rdmsrl(ATOM_RATIOS, value);
return (value >> 16) & 0x7F;
}

static int byt_get_turbo_pstate(void)
static int atom_get_turbo_pstate(void)
{
u64 value;

rdmsrl(BYT_TURBO_RATIOS, value);
rdmsrl(ATOM_TURBO_RATIOS, value);
return value & 0x7F;
}

static void byt_set_pstate(struct cpudata *cpudata, int pstate)
static void atom_set_pstate(struct cpudata *cpudata, int pstate)
{
u64 val;
int32_t vid_fp;
Expand All @@ -577,35 +577,35 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate)
wrmsrl_on_cpu(cpudata->cpu, MSR_IA32_PERF_CTL, val);
}

#define BYT_BCLK_FREQS 5
static int byt_freq_table[BYT_BCLK_FREQS] = { 833, 1000, 1333, 1167, 800};
#define ATOM_BCLK_FREQS 5
static int atom_freq_table[ATOM_BCLK_FREQS] = { 833, 1000, 1333, 1167, 800};

static int byt_get_scaling(void)
static int atom_get_scaling(void)
{
u64 value;
int i;

rdmsrl(MSR_FSB_FREQ, value);
i = value & 0x3;

BUG_ON(i > BYT_BCLK_FREQS);
WARN_ON(i > ATOM_BCLK_FREQS);

return byt_freq_table[i] * 100;
return atom_freq_table[i] * 100;
}

static void byt_get_vid(struct cpudata *cpudata)
static void atom_get_vid(struct cpudata *cpudata)
{
u64 value;

rdmsrl(BYT_VIDS, value);
rdmsrl(ATOM_VIDS, value);
cpudata->vid.min = int_tofp((value >> 8) & 0x7f);
cpudata->vid.max = int_tofp((value >> 16) & 0x7f);
cpudata->vid.ratio = div_fp(
cpudata->vid.max - cpudata->vid.min,
int_tofp(cpudata->pstate.max_pstate -
cpudata->pstate.min_pstate));

rdmsrl(BYT_TURBO_VIDS, value);
rdmsrl(ATOM_TURBO_VIDS, value);
cpudata->vid.turbo = value & 0x7f;
}

Expand Down Expand Up @@ -726,7 +726,7 @@ static struct cpu_defaults core_params = {
},
};

static struct cpu_defaults byt_params = {
static struct cpu_defaults atom_params = {
.pid_policy = {
.sample_rate_ms = 10,
.deadband = 0,
Expand All @@ -736,13 +736,13 @@ static struct cpu_defaults byt_params = {
.i_gain_pct = 4,
},
.funcs = {
.get_max = byt_get_max_pstate,
.get_max_physical = byt_get_max_pstate,
.get_min = byt_get_min_pstate,
.get_turbo = byt_get_turbo_pstate,
.set = byt_set_pstate,
.get_scaling = byt_get_scaling,
.get_vid = byt_get_vid,
.get_max = atom_get_max_pstate,
.get_max_physical = atom_get_max_pstate,
.get_min = atom_get_min_pstate,
.get_turbo = atom_get_turbo_pstate,
.set = atom_set_pstate,
.get_scaling = atom_get_scaling,
.get_vid = atom_get_vid,
},
};

Expand Down Expand Up @@ -983,7 +983,7 @@ static void intel_pstate_timer_func(unsigned long __data)
static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
ICPU(0x2a, core_params),
ICPU(0x2d, core_params),
ICPU(0x37, byt_params),
ICPU(0x37, atom_params),
ICPU(0x3a, core_params),
ICPU(0x3c, core_params),
ICPU(0x3d, core_params),
Expand All @@ -992,7 +992,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
ICPU(0x45, core_params),
ICPU(0x46, core_params),
ICPU(0x47, core_params),
ICPU(0x4c, byt_params),
ICPU(0x4c, atom_params),
ICPU(0x4e, core_params),
ICPU(0x4f, core_params),
ICPU(0x5e, core_params),
Expand Down

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