On Thu, 29 Jun 2023, Jani Nikula <[email protected]> wrote:
> On Thu, 29 Jun 2023, Tvrtko Ursulin <[email protected]> wrote:
>> On 27/06/2023 16:14, Jani Nikula wrote:
>>> Finally we can get rid of the pseudo-const write-once device info, and
>>> convert it into a const pointer to device info in rodata.
>>>
>>> Cc: Matt Roper <[email protected]>
>>> Cc: Lucas De Marchi <[email protected]>
>>> Signed-off-by: Jani Nikula <[email protected]>
>>> ---
>>> drivers/gpu/drm/i915/i915_drv.h | 4 ++--
>>> drivers/gpu/drm/i915/intel_device_info.c | 17 ++++-------------
>>> 2 files changed, 6 insertions(+), 15 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/i915_drv.h
>>> b/drivers/gpu/drm/i915/i915_drv.h
>>> index 8947d1201298..682ef2b5c7d5 100644
>>> --- a/drivers/gpu/drm/i915/i915_drv.h
>>> +++ b/drivers/gpu/drm/i915/i915_drv.h
>>> @@ -203,7 +203,7 @@ struct drm_i915_private {
>>> /* i915 device parameters */
>>> struct i915_params params;
>>>
>>> - const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
>>> + const struct intel_device_info *__info; /* Use INTEL_INFO() to access.
>>> */
>>> struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
>>> struct intel_driver_caps caps;
>>>
>>> @@ -415,7 +415,7 @@ static inline struct intel_gt *to_gt(struct
>>> drm_i915_private *i915)
>>> (engine__) && (engine__)->uabi_class == (class__); \
>>> (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
>>>
>>> -#define INTEL_INFO(i915) (&(i915)->__info)
>>> +#define INTEL_INFO(i915) ((i915)->__info)
>>> #define RUNTIME_INFO(i915) (&(i915)->__runtime)
>>> #define DISPLAY_INFO(i915) ((i915)->display.info.__device_info)
>>> #define DISPLAY_RUNTIME_INFO(i915)
>>> (&(i915)->display.info.__runtime_info)
>>> diff --git a/drivers/gpu/drm/i915/intel_device_info.c
>>> b/drivers/gpu/drm/i915/intel_device_info.c
>>> index 0740922cd71f..ea0ec6174ce5 100644
>>> --- a/drivers/gpu/drm/i915/intel_device_info.c
>>> +++ b/drivers/gpu/drm/i915/intel_device_info.c
>>> @@ -364,13 +364,6 @@ void intel_device_info_runtime_init_early(struct
>>> drm_i915_private *i915)
>>> intel_device_info_subplatform_init(i915);
>>> }
>>>
>>> -/* FIXME: Remove this, and make device info a const pointer to rodata. */
>>> -static struct intel_device_info *
>>> -mkwrite_device_info(struct drm_i915_private *i915)
>>> -{
>>> - return (struct intel_device_info *)INTEL_INFO(i915);
>>> -}
>>> -
>>> static const struct intel_display_device_info no_display = {};
>>>
>>> /**
>>> @@ -430,26 +423,24 @@ void intel_device_info_driver_create(struct
>>> drm_i915_private *i915,
>>> u16 device_id,
>>> const struct intel_device_info *match_info)
>>> {
>>> - struct intel_device_info *info;
>>> struct intel_runtime_info *runtime;
>>> u16 ver, rel, step;
>>>
>>> - /* Setup the write-once "constant" device info */
>>> - info = mkwrite_device_info(i915);
>>> - memcpy(info, match_info, sizeof(*info));
>>> + /* Setup INTEL_INFO() */
>>> + i915->__info = match_info;
>>>
>>> /* Initialize initial runtime info from static const data and pdev. */
>>> runtime = RUNTIME_INFO(i915);
>>> memcpy(runtime, &INTEL_INFO(i915)->__runtime, sizeof(*runtime));
>>>
>>> /* Probe display support */
>>> - i915->display.info.__device_info = intel_display_device_probe(i915,
>>> info->has_gmd_id,
>>> + i915->display.info.__device_info = intel_display_device_probe(i915,
>>> HAS_GMD_ID(i915),
>>
>> Why does intel_display_device_probe need an explicit has_gmdid when it
>> could use HAS_GMD_ID itself?
>
> I think all of the display related initialization from this function
> should be moved within intel_display_device_probe() in follow-up.
>
>> But anyway, LGTM. If it saves you some time before the other time zone
>> comes online:
>>
>> Reviewed-by: Tvrtko Ursulin <[email protected]>
And pushed the series to drm-intel-next, thanks for the reviews
everyone!
BR,
Jani.
>
> Thanks,
> Jani.
>
>>
>> Regards,
>>
>> Tvrtko
>>
>>> &ver,
>>> &rel, &step);
>>> memcpy(DISPLAY_RUNTIME_INFO(i915),
>>> &DISPLAY_INFO(i915)->__runtime_defaults,
>>> sizeof(*DISPLAY_RUNTIME_INFO(i915)));
>>>
>>> - if (info->has_gmd_id) {
>>> + if (HAS_GMD_ID(i915)) {
>>> DISPLAY_RUNTIME_INFO(i915)->ip.ver = ver;
>>> DISPLAY_RUNTIME_INFO(i915)->ip.rel = rel;
>>> DISPLAY_RUNTIME_INFO(i915)->ip.step = step;
--
Jani Nikula, Intel Open Source Graphics Center
