From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- drivers/crypto/ccp/tee-dev.h | 116 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 drivers/crypto/ccp/tee-dev.h (limited to 'drivers/crypto/ccp/tee-dev.h') diff --git a/drivers/crypto/ccp/tee-dev.h b/drivers/crypto/ccp/tee-dev.h new file mode 100644 index 000000000..c23416cb7 --- /dev/null +++ b/drivers/crypto/ccp/tee-dev.h @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright (C) 2019,2021 Advanced Micro Devices, Inc. + * + * Author: Rijo Thomas + * Author: Devaraj Rangasamy + * + */ + +/* This file describes the TEE communication interface between host and AMD + * Secure Processor + */ + +#ifndef __TEE_DEV_H__ +#define __TEE_DEV_H__ + +#include +#include + +#define TEE_DEFAULT_CMD_TIMEOUT (10 * MSEC_PER_SEC) +#define TEE_DEFAULT_RING_TIMEOUT 10 +#define MAX_BUFFER_SIZE 988 + +/** + * struct tee_init_ring_cmd - Command to init TEE ring buffer + * @low_addr: bits [31:0] of the physical address of ring buffer + * @hi_addr: bits [63:32] of the physical address of ring buffer + * @size: size of ring buffer in bytes + */ +struct tee_init_ring_cmd { + u32 low_addr; + u32 hi_addr; + u32 size; +}; + +#define MAX_RING_BUFFER_ENTRIES 32 + +/** + * struct ring_buf_manager - Helper structure to manage ring buffer. + * @ring_start: starting address of ring buffer + * @ring_size: size of ring buffer in bytes + * @ring_pa: physical address of ring buffer + * @wptr: index to the last written entry in ring buffer + */ +struct ring_buf_manager { + struct mutex mutex; /* synchronizes access to ring buffer */ + void *ring_start; + u32 ring_size; + phys_addr_t ring_pa; + u32 wptr; +}; + +struct psp_tee_device { + struct device *dev; + struct psp_device *psp; + void __iomem *io_regs; + struct tee_vdata *vdata; + struct ring_buf_manager rb_mgr; +}; + +/** + * enum tee_cmd_state - TEE command states for the ring buffer interface + * @TEE_CMD_STATE_INIT: initial state of command when sent from host + * @TEE_CMD_STATE_PROCESS: command being processed by TEE environment + * @TEE_CMD_STATE_COMPLETED: command processing completed + */ +enum tee_cmd_state { + TEE_CMD_STATE_INIT, + TEE_CMD_STATE_PROCESS, + TEE_CMD_STATE_COMPLETED, +}; + +/** + * enum cmd_resp_state - TEE command's response status maintained by driver + * @CMD_RESPONSE_INVALID: initial state when no command is written to ring + * @CMD_WAITING_FOR_RESPONSE: driver waiting for response from TEE + * @CMD_RESPONSE_TIMEDOUT: failed to get response from TEE + * @CMD_RESPONSE_COPIED: driver has copied response from TEE + */ +enum cmd_resp_state { + CMD_RESPONSE_INVALID, + CMD_WAITING_FOR_RESPONSE, + CMD_RESPONSE_TIMEDOUT, + CMD_RESPONSE_COPIED, +}; + +/** + * struct tee_ring_cmd - Structure of the command buffer in TEE ring + * @cmd_id: refers to &enum tee_cmd_id. Command id for the ring buffer + * interface + * @cmd_state: refers to &enum tee_cmd_state + * @status: status of TEE command execution + * @res0: reserved region + * @pdata: private data (currently unused) + * @res1: reserved region + * @buf: TEE command specific buffer + * @flag: refers to &enum cmd_resp_state + */ +struct tee_ring_cmd { + u32 cmd_id; + u32 cmd_state; + u32 status; + u32 res0[1]; + u64 pdata; + u32 res1[2]; + u8 buf[MAX_BUFFER_SIZE]; + u32 flag; + + /* Total size: 1024 bytes */ +} __packed; + +int tee_dev_init(struct psp_device *psp); +void tee_dev_destroy(struct psp_device *psp); +int tee_restore(struct psp_device *psp); + +#endif /* __TEE_DEV_H__ */ -- cgit v1.3.1