[Intel-gfx] [PATCH 01/22] drm/i915: Shrink cxsr_latency_table

Tvrtko Ursulin tvrtko.ursulin at linux.intel.com
Thu Oct 6 07:35:51 UTC 2016


On 05/10/2016 18:01, Ville Syrjälä wrote:
> On Wed, Oct 05, 2016 at 01:33:28PM +0100, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>>
>> unsigned long is too wide - use smaller types in
>> struct cxsr_latency to save 800-something bytes of .rodata.
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>> ---
>>   drivers/gpu/drm/i915/intel_drv.h | 16 ++++++++--------
>>   drivers/gpu/drm/i915/intel_pm.c  |  4 ++--
>>   2 files changed, 10 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
>> index f48e79ae2ac6..c52b1d3a7ba0 100644
>> --- a/drivers/gpu/drm/i915/intel_drv.h
>> +++ b/drivers/gpu/drm/i915/intel_drv.h
>> @@ -807,14 +807,14 @@ struct intel_watermark_params {
>>   };
>>   
>>   struct cxsr_latency {
>> -	int is_desktop;
>> -	int is_ddr3;
>> -	unsigned long fsb_freq;
>> -	unsigned long mem_freq;
>> -	unsigned long display_sr;
>> -	unsigned long display_hpll_disable;
>> -	unsigned long cursor_sr;
>> -	unsigned long cursor_hpll_disable;
>> +	bool is_desktop : 1;
>> +	bool is_ddr3 : 1;
>> +	unsigned int fsb_freq;
>> +	unsigned int mem_freq;
>> +	unsigned int display_sr;
>> +	unsigned int display_hpll_disable;
>> +	unsigned int cursor_sr;
>> +	unsigned int cursor_hpll_disable;
> Am I blind or would all of the values fit even in u16?

No you are right, I'll improve it accordingly. :)

Regards,

Tvrtko



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