Re: [PATCH v5 2/8] cpufreq: Use cpufreq_for_each_* macros for frequency table iteration
Hi Prabhakar, On 26/04/2014 12:57 μμ, Prabhakar Lad wrote: > Hi Stratos, > > Thanks for the patch, > > On Sat, Apr 26, 2014 at 1:45 AM, Stratos Karafotis > wrote: >> The cpufreq core now supports the cpufreq_for_each_entry and >> cpufreq_for_each_valid_entry macros helpers for iteration over the >> cpufreq_frequency_table, so use them. >> >> It should have no functional changes. >> >> Signed-off-by: Stratos Karafotis > > For patches 1 & 2: Acked-by: Lad, Prabhakar > > and for patch 3: Acked-and-tested-by: Lad, Prabhakar > > > Thanks, > --Prabhakar lad > Thank you very much! Stratos Karafotis ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
[PATCH v5 2/8] cpufreq: Use cpufreq_for_each_* macros for frequency table iteration
The cpufreq core now supports the cpufreq_for_each_entry and
cpufreq_for_each_valid_entry macros helpers for iteration over the
cpufreq_frequency_table, so use them.
It should have no functional changes.
Signed-off-by: Stratos Karafotis
---
drivers/cpufreq/acpi-cpufreq.c | 9 +++---
drivers/cpufreq/arm_big_little.c | 16 +--
drivers/cpufreq/cpufreq_stats.c | 24 ++--
drivers/cpufreq/dbx500-cpufreq.c | 8 ++
drivers/cpufreq/elanfreq.c | 9 +++---
drivers/cpufreq/exynos-cpufreq.c | 11 ---
drivers/cpufreq/exynos5440-cpufreq.c | 30 +--
drivers/cpufreq/freq_table.c | 56
drivers/cpufreq/longhaul.c | 11 ---
drivers/cpufreq/pasemi-cpufreq.c | 10 +++
drivers/cpufreq/powernow-k6.c| 14 -
drivers/cpufreq/ppc_cbe_cpufreq.c| 9 +++---
drivers/cpufreq/s3c2416-cpufreq.c| 40 +++---
drivers/cpufreq/s3c64xx-cpufreq.c| 15 --
14 files changed, 116 insertions(+), 146 deletions(-)
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 000e4e0..b0c18ed 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -213,7 +213,7 @@ static unsigned extract_io(u32 value, struct
acpi_cpufreq_data *data)
static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
{
- int i;
+ struct cpufreq_frequency_table *pos;
struct acpi_processor_performance *perf;
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
@@ -223,10 +223,9 @@ static unsigned extract_msr(u32 msr, struct
acpi_cpufreq_data *data)
perf = data->acpi_data;
- for (i = 0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
- if (msr == perf->states[data->freq_table[i].driver_data].status)
- return data->freq_table[i].frequency;
- }
+ cpufreq_for_each_entry(pos, data->freq_table)
+ if (msr == perf->states[pos->driver_data].status)
+ return pos->frequency;
return data->freq_table[0].frequency;
}
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index bad2ed3..1f4d4e3 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -226,22 +226,22 @@ static inline u32 get_table_count(struct
cpufreq_frequency_table *table)
/* get the minimum frequency in the cpufreq_frequency_table */
static inline u32 get_table_min(struct cpufreq_frequency_table *table)
{
- int i;
+ struct cpufreq_frequency_table *pos;
uint32_t min_freq = ~0;
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
- if (table[i].frequency < min_freq)
- min_freq = table[i].frequency;
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency < min_freq)
+ min_freq = pos->frequency;
return min_freq;
}
/* get the maximum frequency in the cpufreq_frequency_table */
static inline u32 get_table_max(struct cpufreq_frequency_table *table)
{
- int i;
+ struct cpufreq_frequency_table *pos;
uint32_t max_freq = 0;
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
- if (table[i].frequency > max_freq)
- max_freq = table[i].frequency;
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency > max_freq)
+ max_freq = pos->frequency;
return max_freq;
}
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index ecaaebf..0cd9b4d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -182,11 +182,11 @@ static void cpufreq_stats_free_table(unsigned int cpu)
static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
{
- unsigned int i, j, count = 0, ret = 0;
+ unsigned int i, count = 0, ret = 0;
struct cpufreq_stats *stat;
unsigned int alloc_size;
unsigned int cpu = policy->cpu;
- struct cpufreq_frequency_table *table;
+ struct cpufreq_frequency_table *pos, *table;
table = cpufreq_frequency_get_table(cpu);
if (unlikely(!table))
@@ -205,12 +205,8 @@ static int __cpufreq_stats_create_table(struct
cpufreq_policy *policy)
stat->cpu = cpu;
per_cpu(cpufreq_stats_table, cpu) = stat;
- for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
- unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
+ cpufreq_for_each_valid_entry(pos, table)
count++;
- }
alloc_size = count * sizeof(int) + count * sizeof(u64);
@@ -228,15 +224,11 @@ static int __cpufreq_stats_create_table(struct
Re: [PATCH v4 2/8] cpufreq: Use cpufreq_for_each_* macros for frequency table iteration
Hi Prabhakar,
On 25/04/2014 03:31 μμ, Prabhakar Lad wrote:
> Hi Stratos,
>
> Thanks for the patch.
>
> On Tue, Apr 22, 2014 at 4:30 AM, Stratos Karafotis
> wrote:
>> The cpufreq core now supports the cpufreq_for_each_entry and
>> cpufreq_for_each_valid_entry macros helpers for iteration over the
>> cpufreq_frequency_table, so use them.
>>
>> It should have no functional changes.
>>
> This patch produces following build warning,
>
> drivers/cpufreq/freq_table.c: In function 'cpufreq_frequency_table_cpuinfo':
> drivers/cpufreq/freq_table.c:36:3: warning: format '%lu' expects
> argument of type 'long unsigned int', but argument 2 has type 'int'
> [-Wformat=]
>pr_debug("table entry %lu: %u kHz\n", pos - table, freq);
Thanks for this finding.
I will fix it and resend the patch.
Stratos Karafotis
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[PATCH v4 2/8] cpufreq: Use cpufreq_for_each_* macros for frequency table iteration
The cpufreq core now supports the cpufreq_for_each_entry and
cpufreq_for_each_valid_entry macros helpers for iteration over the
cpufreq_frequency_table, so use them.
It should have no functional changes.
Signed-off-by: Stratos Karafotis
---
drivers/cpufreq/acpi-cpufreq.c | 9 +++---
drivers/cpufreq/arm_big_little.c | 16 +--
drivers/cpufreq/cpufreq_stats.c | 24 ++--
drivers/cpufreq/dbx500-cpufreq.c | 8 ++
drivers/cpufreq/elanfreq.c | 9 +++---
drivers/cpufreq/exynos-cpufreq.c | 11 ---
drivers/cpufreq/exynos5440-cpufreq.c | 30 +--
drivers/cpufreq/freq_table.c | 56
drivers/cpufreq/longhaul.c | 13 -
drivers/cpufreq/pasemi-cpufreq.c | 10 +++
drivers/cpufreq/powernow-k6.c| 14 -
drivers/cpufreq/ppc_cbe_cpufreq.c| 9 +++---
drivers/cpufreq/s3c2416-cpufreq.c| 40 +++---
drivers/cpufreq/s3c64xx-cpufreq.c| 15 --
14 files changed, 117 insertions(+), 147 deletions(-)
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 000e4e0..b0c18ed 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -213,7 +213,7 @@ static unsigned extract_io(u32 value, struct
acpi_cpufreq_data *data)
static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
{
- int i;
+ struct cpufreq_frequency_table *pos;
struct acpi_processor_performance *perf;
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
@@ -223,10 +223,9 @@ static unsigned extract_msr(u32 msr, struct
acpi_cpufreq_data *data)
perf = data->acpi_data;
- for (i = 0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
- if (msr == perf->states[data->freq_table[i].driver_data].status)
- return data->freq_table[i].frequency;
- }
+ cpufreq_for_each_entry(pos, data->freq_table)
+ if (msr == perf->states[pos->driver_data].status)
+ return pos->frequency;
return data->freq_table[0].frequency;
}
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index bad2ed3..1f4d4e3 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -226,22 +226,22 @@ static inline u32 get_table_count(struct
cpufreq_frequency_table *table)
/* get the minimum frequency in the cpufreq_frequency_table */
static inline u32 get_table_min(struct cpufreq_frequency_table *table)
{
- int i;
+ struct cpufreq_frequency_table *pos;
uint32_t min_freq = ~0;
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
- if (table[i].frequency < min_freq)
- min_freq = table[i].frequency;
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency < min_freq)
+ min_freq = pos->frequency;
return min_freq;
}
/* get the maximum frequency in the cpufreq_frequency_table */
static inline u32 get_table_max(struct cpufreq_frequency_table *table)
{
- int i;
+ struct cpufreq_frequency_table *pos;
uint32_t max_freq = 0;
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
- if (table[i].frequency > max_freq)
- max_freq = table[i].frequency;
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency > max_freq)
+ max_freq = pos->frequency;
return max_freq;
}
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index ecaaebf..0cd9b4d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -182,11 +182,11 @@ static void cpufreq_stats_free_table(unsigned int cpu)
static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
{
- unsigned int i, j, count = 0, ret = 0;
+ unsigned int i, count = 0, ret = 0;
struct cpufreq_stats *stat;
unsigned int alloc_size;
unsigned int cpu = policy->cpu;
- struct cpufreq_frequency_table *table;
+ struct cpufreq_frequency_table *pos, *table;
table = cpufreq_frequency_get_table(cpu);
if (unlikely(!table))
@@ -205,12 +205,8 @@ static int __cpufreq_stats_create_table(struct
cpufreq_policy *policy)
stat->cpu = cpu;
per_cpu(cpufreq_stats_table, cpu) = stat;
- for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
- unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
+ cpufreq_for_each_valid_entry(pos, table)
count++;
- }
alloc_size = count * sizeof(int) + count * sizeof(u64);
@@ -228,15 +224,11 @@ static int __cpufre
[PATCH v2 2/8] cpufreq: Use cpufreq_for_each_* macros for frequency table iteration
The cpufreq core now supports the cpufreq_for_each_entry and
cpufreq_for_each_valid_entry macros helpers for iteration over the
cpufreq_frequency_table, so use them.
It should have no functional changes.
Signed-off-by: Stratos Karafotis
---
drivers/cpufreq/acpi-cpufreq.c | 9 +++---
drivers/cpufreq/arm_big_little.c | 16 +--
drivers/cpufreq/cpufreq_stats.c | 24 ++--
drivers/cpufreq/dbx500-cpufreq.c | 8 ++
drivers/cpufreq/elanfreq.c | 9 +++---
drivers/cpufreq/exynos-cpufreq.c | 11 ---
drivers/cpufreq/exynos5440-cpufreq.c | 30 +--
drivers/cpufreq/freq_table.c | 56
drivers/cpufreq/longhaul.c | 13 -
drivers/cpufreq/pasemi-cpufreq.c | 10 +++
drivers/cpufreq/powernow-k6.c| 14 -
drivers/cpufreq/ppc_cbe_cpufreq.c| 9 +++---
drivers/cpufreq/s3c2416-cpufreq.c| 40 +++---
drivers/cpufreq/s3c64xx-cpufreq.c| 15 --
14 files changed, 117 insertions(+), 147 deletions(-)
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 000e4e0..b0c18ed 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -213,7 +213,7 @@ static unsigned extract_io(u32 value, struct
acpi_cpufreq_data *data)
static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
{
- int i;
+ struct cpufreq_frequency_table *pos;
struct acpi_processor_performance *perf;
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
@@ -223,10 +223,9 @@ static unsigned extract_msr(u32 msr, struct
acpi_cpufreq_data *data)
perf = data->acpi_data;
- for (i = 0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
- if (msr == perf->states[data->freq_table[i].driver_data].status)
- return data->freq_table[i].frequency;
- }
+ cpufreq_for_each_entry(pos, data->freq_table)
+ if (msr == perf->states[pos->driver_data].status)
+ return pos->frequency;
return data->freq_table[0].frequency;
}
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index bad2ed3..1f4d4e3 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -226,22 +226,22 @@ static inline u32 get_table_count(struct
cpufreq_frequency_table *table)
/* get the minimum frequency in the cpufreq_frequency_table */
static inline u32 get_table_min(struct cpufreq_frequency_table *table)
{
- int i;
+ struct cpufreq_frequency_table *pos;
uint32_t min_freq = ~0;
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
- if (table[i].frequency < min_freq)
- min_freq = table[i].frequency;
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency < min_freq)
+ min_freq = pos->frequency;
return min_freq;
}
/* get the maximum frequency in the cpufreq_frequency_table */
static inline u32 get_table_max(struct cpufreq_frequency_table *table)
{
- int i;
+ struct cpufreq_frequency_table *pos;
uint32_t max_freq = 0;
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
- if (table[i].frequency > max_freq)
- max_freq = table[i].frequency;
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency > max_freq)
+ max_freq = pos->frequency;
return max_freq;
}
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index ecaaebf..0cd9b4d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -182,11 +182,11 @@ static void cpufreq_stats_free_table(unsigned int cpu)
static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
{
- unsigned int i, j, count = 0, ret = 0;
+ unsigned int i, count = 0, ret = 0;
struct cpufreq_stats *stat;
unsigned int alloc_size;
unsigned int cpu = policy->cpu;
- struct cpufreq_frequency_table *table;
+ struct cpufreq_frequency_table *pos, *table;
table = cpufreq_frequency_get_table(cpu);
if (unlikely(!table))
@@ -205,12 +205,8 @@ static int __cpufreq_stats_create_table(struct
cpufreq_policy *policy)
stat->cpu = cpu;
per_cpu(cpufreq_stats_table, cpu) = stat;
- for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
- unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
+ cpufreq_for_each_valid_entry(pos, table)
count++;
- }
alloc_size = count * sizeof(int) + count * sizeof(u64);
@@ -228,15 +224,11 @@ static int __cpufre
[PATCH 18/20] cpufreq: pasemi: Use cpufreq_for_each_entry macro for iteration
The cpufreq core supports the cpufreq_for_each_entry macro helper
for iteration over the cpufreq_frequency_table, so use it.
It should have no functional changes.
Signed-off-by: Stratos Karafotis
---
Please note that I was no able to compile test this patch due to
lack of cross compiler.
drivers/cpufreq/pasemi-cpufreq.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 84c84b5..9a64492 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -136,9 +136,10 @@ void restore_astate(int cpu)
static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
+ struct cpufreq_frequency_table *pos;
const u32 *max_freqp;
u32 max_freq;
- int i, cur_astate;
+ int cur_astate;
struct resource res;
struct device_node *cpu, *dn;
int err = -ENODEV;
@@ -197,10 +198,9 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy
*policy)
pr_debug("initializing frequency table\n");
/* initialize frequency table */
- for (i=0; pas_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) {
- pas_freqs[i].frequency =
- get_astate_freq(pas_freqs[i].driver_data) * 10;
- pr_debug("%d: %d\n", i, pas_freqs[i].frequency);
+ cpufreq_for_each_entry(pos, pas_freqs) {
+ pos->frequency = get_astate_freq(pos->driver_data) * 10;
+ pr_debug("%lu: %d\n", pos - pas_freqs, pos->frequency);
}
cur_astate = get_cur_astate(policy->cpu);
--
1.9.0
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