[Intel-gfx] [PATCH v7 10/15] mei: mkhi: add memory ready command

[Ceraolo Spurio, Daniele]

On 8/6/2022 5:26 AM, Tomas Winkler wrote:
> Add GSC memory ready command.
> The command indicates to the firmware that extend operation
> memory was setup and the firmware may enter PXP mode.
>
> CC: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> Signed-off-by: Tomas Winkler <tomas.winkler at intel.com>
> Signed-off-by: Alexander Usyskin <alexander.usyskin at intel.com>

Copyright date aside, this is:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>

Daniele

> ---
>   drivers/misc/mei/mkhi.h | 14 +++++++++++++-
>   1 file changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/misc/mei/mkhi.h b/drivers/misc/mei/mkhi.h
> index 27a9b476904e..056b76e73d40 100644
> --- a/drivers/misc/mei/mkhi.h
> +++ b/drivers/misc/mei/mkhi.h
> @@ -1,6 +1,6 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
>   /*
> - * Copyright (c) 2003-2020, Intel Corporation. All rights reserved.
> + * Copyright (c) 2003-2021, Intel Corporation. All rights reserved.
>    * Intel Management Engine Interface (Intel MEI) Linux driver
>    */
>   
> @@ -18,6 +18,13 @@
>   
>   #define MCHI_GROUP_ID  0xA
>   
> +#define MKHI_GROUP_ID_GFX              0x30
> +#define MKHI_GFX_RESET_WARN_CMD_REQ    0x0
> +#define MKHI_GFX_MEMORY_READY_CMD_REQ  0x1
> +
> +/* Allow transition to PXP mode without approval */
> +#define MKHI_GFX_MEM_READY_PXP_ALLOWED  0x1
> +
>   struct mkhi_rule_id {
>   	__le16 rule_type;
>   	u8 feature_id;
> @@ -42,4 +49,9 @@ struct mkhi_msg {
>   	u8 data[];
>   } __packed;
>   
> +struct mkhi_gfx_mem_ready {
> +	struct mkhi_msg_hdr hdr;
> +	u32    flags;
> +} __packed;
> +
>   #endif /* _MEI_MKHI_H_ */