[Intel-gfx] [PATCH] drm/i915: Add feature flag for platforms with DRAM

[Ville Syrjälä]

On Wed, Sep 25, 2019 at 02:07:27PM -0700, Stuart Summers wrote:

No commit message.

> Signed-off-by: Stuart Summers <stuart.summers at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.c          | 2 +-
>  drivers/gpu/drm/i915/i915_drv.h          | 2 ++
>  drivers/gpu/drm/i915/i915_pci.c          | 3 ++-
>  drivers/gpu/drm/i915/intel_device_info.h | 1 +
>  4 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index a9ee73b61f4d..552ba7607e9a 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -1128,7 +1128,7 @@ intel_get_dram_info(struct drm_i915_private *dev_priv)
>  	 */
>  	dram_info->is_16gb_dimm = !IS_GEN9_LP(dev_priv);
>  
> -	if (INTEL_GEN(dev_priv) < 9)
> +	if (!HAS_DRAM(dev_priv))
>  		return;

As opposed to what? SRAM?

>  
>  	if (IS_GEN9_LP(dev_priv))
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index fcf7423075ef..e82ca38be59e 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -2151,6 +2151,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
>  
>  #define HAS_DP_MST(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dp_mst)
>  
> +#define HAS_DRAM(dev_priv)	(INTEL_INFO(dev_priv)->has_dram)
> +
>  #define HAS_DDI(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_ddi)
>  #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->has_fpga_dbg)
>  #define HAS_PSR(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_psr)
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index ea53dfe2fba0..98d7e07dba6a 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -602,7 +602,8 @@ static const struct intel_device_info intel_cherryview_info = {
>  	.display.has_csr = 1, \
>  	.has_gt_uc = 1, \
>  	.display.has_ipc = 1, \
> -	.ddb_size = 896
> +	.ddb_size = 896, \
> +	.has_dram = 1
>  
>  #define SKL_PLATFORM \
>  	GEN9_FEATURES, \
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index 0cdc2465534b..c9c858100ea3 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -109,6 +109,7 @@ enum intel_ppgtt_type {
>  	func(require_force_probe); \
>  	/* Keep has_* in alphabetical order */ \
>  	func(has_64bit_reloc); \
> +	func(has_dram); \
>  	func(gpu_reset_clobbers_display); \
>  	func(has_reset_engine); \
>  	func(has_fpga_dbg); \
> -- 
> 2.22.0
> 
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> Intel-gfx at lists.freedesktop.org
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-- 
Ville Syrjälä
Intel