[Intel-gfx] [PATCH v2 3/9] drm/i915/dg2: Add DG2_NB_MBD subplatform

Tvrtko Ursulin tvrtko.ursulin at linux.intel.com
Thu Jun 16 12:13:12 UTC 2022


On 16/06/2022 13:01, Anshuman Gupta wrote:
> DG2 NB SKU need to distinguish between MBD and AIC to probe
> the VRAM Self Refresh feature support. Adding those sub platform
> accordingly.
> 
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
> ---
>   drivers/gpu/drm/i915/i915_drv.h          |  3 +++
>   drivers/gpu/drm/i915/intel_device_info.c | 21 +++++++++++++++++++++
>   drivers/gpu/drm/i915/intel_device_info.h | 11 +++++++----
>   include/drm/i915_pciids.h                | 23 ++++++++++++++++-------
>   4 files changed, 47 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index a5bc6a774c5a..f1f8699eedfd 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1007,10 +1007,13 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
>   #define IS_PONTEVECCHIO(dev_priv) IS_PLATFORM(dev_priv, INTEL_PONTEVECCHIO)
>   
>   #define IS_DG2_G10(dev_priv) \
> +	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10_NB_MBD) || \
>   	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10)
>   #define IS_DG2_G11(dev_priv) \
> +	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11_NB_MBD) || \
>   	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11)
>   #define IS_DG2_G12(dev_priv) \
> +	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G12_NB_MBD) || \
>   	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G12)
>   #define IS_ADLS_RPLS(dev_priv) \
>   	IS_SUBPLATFORM(dev_priv, INTEL_ALDERLAKE_S, INTEL_SUBPLATFORM_RPL)
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
> index f0bf23726ed8..93da555adc4e 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -187,6 +187,18 @@ static const u16 subplatform_rpl_ids[] = {
>   	INTEL_RPLP_IDS(0),
>   };
>   
> +static const u16 subplatform_g10_mb_mbd_ids[] = {
> +	INTEL_DG2_G10_NB_MBD_IDS(0),
> +};
> +
> +static const u16 subplatform_g11_mb_mbd_ids[] = {
> +	INTEL_DG2_G11_NB_MBD_IDS(0),
> +};
> +
> +static const u16 subplatform_g12_mb_mbd_ids[] = {
> +	INTEL_DG2_G12_NB_MBD_IDS(0),
> +};
> +
>   static const u16 subplatform_g10_ids[] = {
>   	INTEL_DG2_G10_IDS(0),
>   	INTEL_ATS_M150_IDS(0),
> @@ -246,6 +258,15 @@ void intel_device_info_subplatform_init(struct drm_i915_private *i915)
>   	} else if (find_devid(devid, subplatform_rpl_ids,
>   			      ARRAY_SIZE(subplatform_rpl_ids))) {
>   		mask = BIT(INTEL_SUBPLATFORM_RPL);
> +	} else if (find_devid(devid, subplatform_g10_mb_mbd_ids,
> +			      ARRAY_SIZE(subplatform_g10_mb_mbd_ids))) {
> +		mask = BIT(INTEL_SUBPLATFORM_G10_NB_MBD);
> +	} else if (find_devid(devid, subplatform_g11_mb_mbd_ids,
> +			      ARRAY_SIZE(subplatform_g11_mb_mbd_ids))) {
> +		mask = BIT(INTEL_SUBPLATFORM_G11_NB_MBD);
> +	} else if (find_devid(devid, subplatform_g12_mb_mbd_ids,
> +			      ARRAY_SIZE(subplatform_g12_mb_mbd_ids))) {
> +		mask = BIT(INTEL_SUBPLATFORM_G12_NB_MBD);
>   	} else if (find_devid(devid, subplatform_g10_ids,
>   			      ARRAY_SIZE(subplatform_g10_ids))) {
>   		mask = BIT(INTEL_SUBPLATFORM_G10);
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index 08341174ee0a..c929e2d7e59c 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -97,7 +97,7 @@ enum intel_platform {
>    * it is fine for the same bit to be used on multiple parent platforms.
>    */
>   
> -#define INTEL_SUBPLATFORM_BITS (3)
> +#define INTEL_SUBPLATFORM_BITS (6)
>   #define INTEL_SUBPLATFORM_MASK (BIT(INTEL_SUBPLATFORM_BITS) - 1)
>   
>   /* HSW/BDW/SKL/KBL/CFL */
> @@ -111,9 +111,12 @@ enum intel_platform {
>   #define INTEL_SUBPLATFORM_UY	(0)
>   
>   /* DG2 */
> -#define INTEL_SUBPLATFORM_G10	0
> -#define INTEL_SUBPLATFORM_G11	1
> -#define INTEL_SUBPLATFORM_G12	2
> +#define INTEL_SUBPLATFORM_G10_NB_MBD	0
> +#define INTEL_SUBPLATFORM_G11_NB_MBD	1
> +#define INTEL_SUBPLATFORM_G12_NB_MBD	2
> +#define INTEL_SUBPLATFORM_G10	3
> +#define INTEL_SUBPLATFORM_G11	4
> +#define INTEL_SUBPLATFORM_G12	5

Ugh I feel this "breaks" the subplatform idea.. feels like it is just 
too many bits when two separate sets of information get tracked (Gxx 
plus MBD).

How about a separate "is_mbd" flag in runtime_info? You can split the 
PCI IDs split as you have done, but do a search against the MBD ones and 
set the flag.

Regards,

Tvrtko

>   
>   /* ADL */
>   #define INTEL_SUBPLATFORM_RPL	0
> diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
> index 4585fed4e41e..198be417bb2d 100644
> --- a/include/drm/i915_pciids.h
> +++ b/include/drm/i915_pciids.h
> @@ -693,32 +693,41 @@
>   	INTEL_VGA_DEVICE(0xA7A9, info)
>   
>   /* DG2 */
> -#define INTEL_DG2_G10_IDS(info) \
> +#define INTEL_DG2_G10_NB_MBD_IDS(info) \
>   	INTEL_VGA_DEVICE(0x5690, info), \
>   	INTEL_VGA_DEVICE(0x5691, info), \
> -	INTEL_VGA_DEVICE(0x5692, info), \
> +	INTEL_VGA_DEVICE(0x5692, info)
> +
> +#define INTEL_DG2_G11_NB_MBD_IDS(info) \
> +	INTEL_VGA_DEVICE(0x5693, info), \
> +	INTEL_VGA_DEVICE(0x5694, info), \
> +	INTEL_VGA_DEVICE(0x5695, info)
> +
> +#define INTEL_DG2_G12_NB_MBD_IDS(info) \
> +	INTEL_VGA_DEVICE(0x5696, info), \
> +	INTEL_VGA_DEVICE(0x5697, info)
> +
> +#define INTEL_DG2_G10_IDS(info) \
>   	INTEL_VGA_DEVICE(0x56A0, info), \
>   	INTEL_VGA_DEVICE(0x56A1, info), \
>   	INTEL_VGA_DEVICE(0x56A2, info)
>   
>   #define INTEL_DG2_G11_IDS(info) \
> -	INTEL_VGA_DEVICE(0x5693, info), \
> -	INTEL_VGA_DEVICE(0x5694, info), \
> -	INTEL_VGA_DEVICE(0x5695, info), \
>   	INTEL_VGA_DEVICE(0x56A5, info), \
>   	INTEL_VGA_DEVICE(0x56A6, info), \
>   	INTEL_VGA_DEVICE(0x56B0, info), \
>   	INTEL_VGA_DEVICE(0x56B1, info)
>   
>   #define INTEL_DG2_G12_IDS(info) \
> -	INTEL_VGA_DEVICE(0x5696, info), \
> -	INTEL_VGA_DEVICE(0x5697, info), \
>   	INTEL_VGA_DEVICE(0x56A3, info), \
>   	INTEL_VGA_DEVICE(0x56A4, info), \
>   	INTEL_VGA_DEVICE(0x56B2, info), \
>   	INTEL_VGA_DEVICE(0x56B3, info)
>   
>   #define INTEL_DG2_IDS(info) \
> +	INTEL_DG2_G10_NB_MBD_IDS(info), \
> +	INTEL_DG2_G11_NB_MBD_IDS(info), \
> +	INTEL_DG2_G12_NB_MBD_IDS(info), \
>   	INTEL_DG2_G10_IDS(info), \
>   	INTEL_DG2_G11_IDS(info), \
>   	INTEL_DG2_G12_IDS(info)


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