linux-kernel - Re: [Intel-gfx] [PATCH v11 1/5] drm/i915/gsc: add gsc as a mei auxiliary device

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Message-ID: <34a38062-cf2f-f76a-cf49-1e59f8a81e2c@intel.com>
Date:   Wed, 16 Mar 2022 18:11:53 -0700
From:   "Ceraolo Spurio, Daniele" <daniele.ceraolospurio@...el.com>
To:     Alexander Usyskin <alexander.usyskin@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>
CC:     <intel-gfx@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        "Tomas Winkler" <tomas.winkler@...el.com>,
        Vitaly Lubart <vitaly.lubart@...el.com>
Subject: Re: [Intel-gfx] [PATCH v11 1/5] drm/i915/gsc: add gsc as a mei
 auxiliary device

<snip>

> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index ddbc7a685a50..63c56d668963 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -976,6 +976,8 @@
>   #define GEN12_COMPUTE2_RING_BASE	0x1e000
>   #define GEN12_COMPUTE3_RING_BASE	0x26000
>   #define BLT_RING_BASE		0x22000
> +#define DG1_GSC_HECI1_BASE	0x00258000
> +#define DG1_GSC_HECI2_BASE	0x00259000

You ended up keeping the HECI1 define. Not a blocker, so:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>

Daniele

>   
>   
>   
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index f9b955810593..576d15a04c9e 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -141,6 +141,8 @@ enum intel_ppgtt_type {
>   	func(has_flat_ccs); \
>   	func(has_global_mocs); \
>   	func(has_gt_uc); \
> +	func(has_heci_pxp); \
> +	func(has_heci_gscfi); \
>   	func(has_guc_deprivilege); \
>   	func(has_l3_dpf); \
>   	func(has_llc); \
> diff --git a/include/linux/mei_aux.h b/include/linux/mei_aux.h
> new file mode 100644
> index 000000000000..587f25128848
> --- /dev/null
> +++ b/include/linux/mei_aux.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2022, Intel Corporation. All rights reserved.
> + */
> +#ifndef _LINUX_MEI_AUX_H
> +#define _LINUX_MEI_AUX_H
> +
> +#include <linux/auxiliary_bus.h>
> +
> +struct mei_aux_device {
> +	struct auxiliary_device aux_dev;
> +	int irq;
> +	struct resource bar;
> +};
> +
> +#define auxiliary_dev_to_mei_aux_dev(auxiliary_dev) \
> +	container_of(auxiliary_dev, struct mei_aux_device, aux_dev)
> +
> +#endif /* _LINUX_MEI_AUX_H */