diff options
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_43.h | 26 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h | 35 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_huc.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h | 57 |
6 files changed, 100 insertions, 68 deletions
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h new file mode 100644 index 000000000000..739f9072fa5f --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_FW_INTERFACE_42_H__ +#define __INTEL_PXP_FW_INTERFACE_42_H__ + +#include <linux/types.h> +#include "intel_pxp_cmd_interface_cmn.h" + +/* PXP-Opcode for Init Session */ +#define PXP42_CMDID_INIT_SESSION 0x1e + +/* PXP-Input-Packet: Init Session (Arb-Session) */ +struct pxp42_create_arb_in { + struct pxp_cmd_header header; + u32 protection_mode; +#define PXP42_ARB_SESSION_MODE_HEAVY 0x2 + u32 session_id; +} __packed; + +/* PXP-Output-Packet: Init Session */ +struct pxp42_create_arb_out { + struct pxp_cmd_header header; +} __packed; + +#endif /* __INTEL_PXP_FW_INTERFACE_42_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_43.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_43.h new file mode 100644 index 000000000000..ad67e3f49c20 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_43.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2022, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_FW_INTERFACE_43_H__ +#define __INTEL_PXP_FW_INTERFACE_43_H__ + +#include <linux/types.h> +#include "intel_pxp_cmd_interface_cmn.h" + +/* PXP-Cmd-Op definitions */ +#define PXP43_CMDID_START_HUC_AUTH 0x0000003A + +/* PXP-Input-Packet: HUC-Authentication */ +struct pxp43_start_huc_auth_in { + struct pxp_cmd_header header; + __le64 huc_base_address; +} __packed; + +/* PXP-Output-Packet: HUC-Authentication */ +struct pxp43_start_huc_auth_out { + struct pxp_cmd_header header; +} __packed; + +#endif /* __INTEL_PXP_FW_INTERFACE_43_H__ */ 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__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c b/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c index f6a3f53a1d22..2e1165522950 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c @@ -14,14 +14,14 @@ #include "intel_pxp_huc.h" #include "intel_pxp_tee.h" #include "intel_pxp_types.h" -#include "intel_pxp_tee_interface.h" +#include "intel_pxp_cmd_interface_43.h" int intel_pxp_huc_load_and_auth(struct intel_pxp *pxp) { struct intel_gt *gt = pxp_to_gt(pxp); struct intel_huc *huc = >->uc.huc; - struct pxp_tee_start_huc_auth_in huc_in = {0}; - struct pxp_tee_start_huc_auth_out huc_out = {0}; + struct pxp43_start_huc_auth_in huc_in = {0}; + struct pxp43_start_huc_auth_out huc_out = {0}; dma_addr_t huc_phys_addr; u8 client_id = 0; u8 fence_id = 0; @@ -33,8 +33,8 @@ int intel_pxp_huc_load_and_auth(struct intel_pxp *pxp) huc_phys_addr = i915_gem_object_get_dma_address(huc->fw.obj, 0); /* write the PXP message into the lmem (the sg list) */ - huc_in.header.api_version = PXP_TEE_43_APIVER; - huc_in.header.command_id = PXP_TEE_43_START_HUC_AUTH; + huc_in.header.api_version = PXP_APIVER(4, 3); + huc_in.header.command_id = PXP43_CMDID_START_HUC_AUTH; huc_in.header.status = 0; huc_in.header.buffer_len = sizeof(huc_in.huc_base_address); huc_in.huc_base_address = huc_phys_addr; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index 052fd2f9a583..b0c9170b1395 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -14,7 +14,7 @@ #include "intel_pxp.h" #include "intel_pxp_session.h" #include "intel_pxp_tee.h" -#include "intel_pxp_tee_interface.h" +#include "intel_pxp_cmd_interface_42.h" #include "intel_pxp_huc.h" static inline struct intel_pxp *i915_dev_to_pxp(struct device *i915_kdev) @@ -286,14 +286,14 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp, int arb_session_id) { struct drm_i915_private *i915 = pxp_to_gt(pxp)->i915; - struct pxp_tee_create_arb_in msg_in = {0}; - struct pxp_tee_create_arb_out msg_out = {0}; + struct pxp42_create_arb_in msg_in = {0}; + struct pxp42_create_arb_out msg_out = {0}; int ret; - msg_in.header.api_version = PXP_TEE_APIVER; - msg_in.header.command_id = PXP_TEE_ARB_CMDID; + msg_in.header.api_version = PXP_APIVER(4, 2); + msg_in.header.command_id = PXP42_CMDID_INIT_SESSION; msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header); - msg_in.protection_mode = PXP_TEE_ARB_PROTECTION_MODE; + msg_in.protection_mode = PXP42_ARB_SESSION_MODE_HEAVY; msg_in.session_id = arb_session_id; ret = intel_pxp_tee_io_message(pxp, diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h deleted file mode 100644 index 7edc1760f142..000000000000 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h +++ /dev/null @@ -1,57 +0,0 @@ -/* SPDX-License-Identifier: MIT */ -/* - * Copyright(c) 2020-2022, Intel Corporation. All rights reserved. - */ - -#ifndef __INTEL_PXP_TEE_INTERFACE_H__ -#define __INTEL_PXP_TEE_INTERFACE_H__ - -#include <linux/types.h> - -#define PXP_TEE_APIVER 0x40002 -#define PXP_TEE_43_APIVER 0x00040003 -#define PXP_TEE_ARB_CMDID 0x1e -#define PXP_TEE_ARB_PROTECTION_MODE 0x2 -#define PXP_TEE_43_START_HUC_AUTH 0x0000003A - -/* - * there are a lot of status codes for PXP, but we only define the ones we - * actually can handle in the driver. other failure codes will be printed to - * error msg for debug. - */ -enum pxp_status { - PXP_STATUS_SUCCESS = 0x0, - PXP_STATUS_OP_NOT_PERMITTED = 0x4013 -}; - -/* PXP TEE message header */ -struct pxp_tee_cmd_header { - u32 api_version; - u32 command_id; - u32 status; - /* Length of the message (excluding the header) */ - u32 buffer_len; -} __packed; - -/* PXP TEE message input to create a arbitrary session */ -struct pxp_tee_create_arb_in { - struct pxp_tee_cmd_header header; - u32 protection_mode; - u32 session_id; -} __packed; - -/* PXP TEE message output to create a arbitrary session */ -struct pxp_tee_create_arb_out { - struct pxp_tee_cmd_header header; -} __packed; - -struct pxp_tee_start_huc_auth_in { - struct pxp_tee_cmd_header header; - __le64 huc_base_address; -}; - -struct pxp_tee_start_huc_auth_out { - struct pxp_tee_cmd_header header; -}; - -#endif /* __INTEL_PXP_TEE_INTERFACE_H__ */ |