linux-kernel - Re: [Intel-xe] [PATCH v2 2/4] drm/xe/gsc: add has_heci

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Message-ID: <ZQh2K506qQ+hGSld@intel.com>
Date:   Mon, 18 Sep 2023 12:09:15 -0400
From:   Rodrigo Vivi <rodrigo.vivi@...el.com>
To:     Alexander Usyskin <alexander.usyskin@...el.com>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Lucas De Marchi <lucas.demarchi@...el.com>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>,
        <linux-kernel@...r.kernel.org>,
        "Tomas Winkler" <tomas.winkler@...el.com>,
        <intel-xe@...ts.freedesktop.org>
Subject: Re: [Intel-xe] [PATCH v2 2/4] drm/xe/gsc: add has_heci_gscfi
 indication to device

On Thu, Sep 14, 2023 at 11:01:36AM +0300, Alexander Usyskin wrote:
> From: Vitaly Lubart <vitaly.lubart@...el.com>
> 
> Mark support of MEI-GSC interaction per device.
> Add has_heci_gscfi indication to xe_device and xe_pci structures.
> Mark DG1 and DG2 devices as supported.
> 
> Signed-off-by: Vitaly Lubart <vitaly.lubart@...el.com>
> Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@...el.com>

> ---
>  drivers/gpu/drm/xe/xe_device_types.h | 3 +++
>  drivers/gpu/drm/xe/xe_pci.c          | 9 +++++++--
>  2 files changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h
> index 750e1f0d3339..1d1fe53fc30d 100644
> --- a/drivers/gpu/drm/xe/xe_device_types.h
> +++ b/drivers/gpu/drm/xe/xe_device_types.h
> @@ -32,6 +32,7 @@ struct xe_ggtt;
>  #define GRAPHICS_VERx100(xe) ((xe)->info.graphics_verx100)
>  #define MEDIA_VERx100(xe) ((xe)->info.media_verx100)
>  #define IS_DGFX(xe) ((xe)->info.is_dgfx)
> +#define HAS_HECI_GSCFI(xe) ((xe)->info.has_heci_gscfi)
>  
>  #define XE_VRAM_FLAGS_NEED64K		BIT(0)
>  
> @@ -237,6 +238,8 @@ struct xe_device {
>  		u8 has_link_copy_engine:1;
>  		/** @enable_display: display enabled */
>  		u8 enable_display:1;
> +		/** @has_heci_gscfi: device has heci gscfi */
> +		u8 has_heci_gscfi:1;
>  
>  #if IS_ENABLED(CONFIG_DRM_XE_DISPLAY)
>  		const struct intel_display_device_info *display;
> diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
> index dc233a1226bd..145eaa430d74 100644
> --- a/drivers/gpu/drm/xe/xe_pci.c
> +++ b/drivers/gpu/drm/xe/xe_pci.c
> @@ -57,6 +57,7 @@ struct xe_device_desc {
>  	u8 require_force_probe:1;
>  	u8 is_dgfx:1;
>  	u8 has_display:1;
> +	u8 has_heci_gscfi:1;
>  
>  	u8 has_llc:1;
>  };
> @@ -265,6 +266,7 @@ static const struct xe_device_desc dg1_desc = {
>  	PLATFORM(XE_DG1),
>  	.has_display = true,
>  	.require_force_probe = true,
> +	.has_heci_gscfi = 1,
>  };
>  
>  static const u16 dg2_g10_ids[] = { XE_DG2_G10_IDS(NOP), XE_ATS_M150_IDS(NOP), 0 };
> @@ -274,6 +276,7 @@ static const u16 dg2_g12_ids[] = { XE_DG2_G12_IDS(NOP), 0 };
>  #define DG2_FEATURES \
>  	DGFX_FEATURES, \
>  	PLATFORM(XE_DG2), \
> +	.has_heci_gscfi = 1, \
>  	.subplatforms = (const struct xe_subplatform_desc[]) { \
>  		{ XE_SUBPLATFORM_DG2_G10, "G10", dg2_g10_ids }, \
>  		{ XE_SUBPLATFORM_DG2_G11, "G11", dg2_g11_ids }, \
> @@ -562,6 +565,7 @@ static int xe_info_init(struct xe_device *xe,
>  		return -ENODEV;
>  
>  	xe->info.is_dgfx = desc->is_dgfx;
> +	xe->info.has_heci_gscfi = desc->has_heci_gscfi;
>  	xe->info.graphics_name = graphics_desc->name;
>  	xe->info.media_name = media_desc ? media_desc->name : "none";
>  	xe->info.has_llc = desc->has_llc;
> @@ -703,7 +707,7 @@ static int xe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  
>  	xe_display_info_init(xe);
>  
> -	drm_dbg(&xe->drm, "%s %s %04x:%04x dgfx:%d gfx:%s (%d.%02d) media:%s (%d.%02d) display:%s dma_m_s:%d tc:%d",
> +	drm_dbg(&xe->drm, "%s %s %04x:%04x dgfx:%d gfx:%s (%d.%02d) media:%s (%d.%02d) display:%s dma_m_s:%d tc:%d gscfi:%d",
>  		desc->platform_name,
>  		subplatform_desc ? subplatform_desc->name : "",
>  		xe->info.devid, xe->info.revid,
> @@ -715,7 +719,8 @@ static int xe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  		xe->info.media_verx100 / 100,
>  		xe->info.media_verx100 % 100,
>  		str_yes_no(xe->info.enable_display),
> -		xe->info.dma_mask_size, xe->info.tile_count);
> +		xe->info.dma_mask_size, xe->info.tile_count,
> +		xe->info.has_heci_gscfi);
>  
>  	drm_dbg(&xe->drm, "Stepping = (G:%s, M:%s, D:%s, B:%s)\n",
>  		xe_step_name(xe->info.step.graphics),
> -- 
> 2.34.1
>