linux-kernel - [PATCH v7 10/15] mei: mkhi: add memory ready command

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Message-Id: <20220806122636.43068-11-tomas.winkler@intel.com>
Date:   Sat,  6 Aug 2022 15:26:31 +0300
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>,
        Alexander Usyskin <alexander.usyskin@...el.com>,
        Vitaly Lubart <vitaly.lubart@...el.com>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>
Subject: [PATCH v7 10/15] mei: mkhi: add memory ready command

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@...el.com>
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>
---
 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_ */
-- 
2.37.1