linux-kernel - Re: [PATCH v9 1/3] i915/gvt: Separate the MMIO tracking table from GVT-g

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Message-ID: <874k35541h.fsf@intel.com>
Date:   Thu, 07 Apr 2022 18:03:38 +0300
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Zhi Wang <zhi.wang.linux@...il.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        intel-gfx@...ts.freedesktop.org,
        intel-gvt-dev@...ts.freedesktop.org
Cc:     Zhi Wang <zhi.a.wang@...il.com>, Christoph Hellwig <hch@....de>,
        Jason Gunthorpe <jgg@...dia.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Vivi Rodrigo <rodrigo.vivi@...el.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Zhi Wang <zhi.a.wang@...el.com>
Subject: Re: [PATCH v9 1/3] i915/gvt: Separate the MMIO tracking table from
 GVT-g

On Thu, 07 Apr 2022, Zhi Wang <zhi.wang.linux@...il.com> wrote:
> diff --git a/drivers/gpu/drm/i915/intel_gvt.h b/drivers/gpu/drm/i915/intel_gvt.h
> index d7d3fb6186fd..7665d7cf0bdd 100644
> --- a/drivers/gpu/drm/i915/intel_gvt.h
> +++ b/drivers/gpu/drm/i915/intel_gvt.h
> @@ -26,7 +26,17 @@
>  
>  struct drm_i915_private;
>  
> +#include <linux/kernel.h>

You only need <linux/types.h>. Please add it before the forward
declaration above.

> +
>  #ifdef CONFIG_DRM_I915_GVT
> +
> +struct intel_gvt_mmio_table_iter {
> +	struct drm_i915_private *i915;
> +	void *data;
> +	int (*handle_mmio_cb)(struct intel_gvt_mmio_table_iter *iter,
> +			      u32 offset, u32 size);
> +};
> +
>  int intel_gvt_init(struct drm_i915_private *dev_priv);
>  void intel_gvt_driver_remove(struct drm_i915_private *dev_priv);
>  int intel_gvt_init_device(struct drm_i915_private *dev_priv);
> @@ -34,6 +44,7 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv);
>  int intel_gvt_init_host(void);
>  void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv);
>  void intel_gvt_resume(struct drm_i915_private *dev_priv);
> +int intel_gvt_iterate_mmio_table(struct intel_gvt_mmio_table_iter *iter);
>  #else
>  static inline int intel_gvt_init(struct drm_i915_private *dev_priv)
>  {
> @@ -51,6 +62,16 @@ static inline void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv)
>  static inline void intel_gvt_resume(struct drm_i915_private *dev_priv)
>  {
>  }
> +
> +unsigned long intel_gvt_get_device_type(struct drm_i915_private *i915)
> +{
> +	return 0;
> +}

The CONFIG_DRM_I915_GVT=y counterpart for this is in mmio.h. Should be
both in the same header.

> +
> +int intel_gvt_iterate_mmio_table(struct intel_gvt_mmio_table_iter *iter)
> +{
> +	return 0;
> +}
>  #endif
>  
>  #endif /* _INTEL_GVT_H_ */
> diff --git a/drivers/gpu/drm/i915/intel_gvt_mmio_table.c b/drivers/gpu/drm/i915/intel_gvt_mmio_table.c
> new file mode 100644
> index 000000000000..d29491a6d209
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/intel_gvt_mmio_table.c
> @@ -0,0 +1,1290 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include "i915_drv.h"
> +#include "i915_reg.h"
> +#include "display/vlv_dsi_pll_regs.h"
> +#include "gt/intel_gt_regs.h"
> +#include "intel_mchbar_regs.h"
> +#include "i915_pvinfo.h"
> +#include "intel_gvt.h"
> +#include "gvt/gvt.h"

Generally we have the include lists sorted.

Other than the nitpicks above, the series is

Acked-by: Jani Nikula <jani.nikula@...el.com>


BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center