diff options
Diffstat (limited to 'drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h')
-rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h new file mode 100644 index 000000000000..c2f23394f9b8 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2022, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_FW_INTERFACE_CMN_H__ +#define __INTEL_PXP_FW_INTERFACE_CMN_H__ + +#include <linux/types.h> + +#define PXP_APIVER(x, y) (((x) & 0xFFFF) << 16 | ((y) & 0xFFFF)) + +/* + * there are a lot of status codes for PXP, but we only define the cross-API + * common ones that we actually can handle in the kernel driver. Other failure + * codes should be printed to error msg for debug. + */ +enum pxp_status { + PXP_STATUS_SUCCESS = 0x0, + PXP_STATUS_OP_NOT_PERMITTED = 0x4013 +}; + +/* Common PXP FW message header */ +struct pxp_cmd_header { + u32 api_version; + u32 command_id; + union { + u32 status; /* out */ + u32 stream_id; /* in */ + }; + /* Length of the message (excluding the header) */ + u32 buffer_len; +} __packed; + +#endif /* __INTEL_PXP_FW_INTERFACE_CMN_H__ */ |