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3f20ea3675
Add Logical Machine Management(LMM) protocol which is intended for boot, shutdown, and reset of other logical machines (LM). It is usually used to allow one LM to manager another used as an offload or accelerator engine. Following Linux Kernel, created a separate folder for holding vendor protocol drivers. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Alice Guo <alice.guo@nxp.com>
99 lines
2.6 KiB
C
99 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/*
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* Copyright 2025 NXP
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*/
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#ifndef _SCMI_NXP_PROTOCOLS_H
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#define _SCMI_NXP_PROTOCOLS_H
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#include <asm/types.h>
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#include <linux/bitops.h>
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#define SCMI_PROTOCOL_ID_IMX_LMM 0x80
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#define SCMI_PROTOCOL_ID_IMX_MISC 0x84
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#define SCMI_PAYLOAD_LEN 100
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#define SCMI_ARRAY(X, Y) ((SCMI_PAYLOAD_LEN - (X)) / sizeof(Y))
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#define SCMI_IMX_MISC_RESET_REASON 0xA
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struct scmi_imx_misc_reset_reason_in {
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#define MISC_REASON_FLAG_SYSTEM BIT(0)
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u32 flags;
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};
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struct scmi_imx_misc_reset_reason_out {
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s32 status;
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/* Boot reason flags */
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#define MISC_BOOT_FLAG_VLD BIT(31)
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#define MISC_BOOT_FLAG_ORG_VLD BIT(28)
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#define MISC_BOOT_FLAG_ORIGIN GENMASK(27, 24)
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#define MISC_BOOT_FLAG_O_SHIFT 24
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#define MISC_BOOT_FLAG_ERR_VLD BIT(23)
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#define MISC_BOOT_FLAG_ERR_ID GENMASK(22, 8)
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#define MISC_BOOT_FLAG_E_SHIFT 8
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#define MISC_BOOT_FLAG_REASON GENMASK(7, 0)
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u32 bootflags;
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/* Shutdown reason flags */
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#define MISC_SHUTDOWN_FLAG_VLD BIT(31)
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#define MISC_SHUTDOWN_FLAG_EXT_LEN GENMASK(30, 29)
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#define MISC_SHUTDOWN_FLAG_ORG_VLD BIT(28)
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#define MISC_SHUTDOWN_FLAG_ORIGIN GENMASK(27, 24)
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#define MISC_SHUTDOWN_FLAG_O_SHIFT 24
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#define MISC_SHUTDOWN_FLAG_ERR_VLD BIT(23)
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#define MISC_SHUTDOWN_FLAG_ERR_ID GENMASK(22, 8)
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#define MISC_SHUTDOWN_FLAG_E_SHIFT 8
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#define MISC_SHUTDOWN_FLAG_REASON GENMASK(7, 0)
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u32 shutdownflags;
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/* Array of extended info words */
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#define MISC_MAX_EXTINFO SCMI_ARRAY(16, u32)
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u32 extInfo[MISC_MAX_EXTINFO];
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};
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#define LMM_ID_DISCOVER 0xFFFFFFFFU
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#define LMM_MAX_NAME 16
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enum scmi_imx_lmm_state {
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LMM_STATE_LM_OFF,
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LMM_STATE_LM_ON,
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LMM_STATE_LM_SUSPEND,
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LMM_STATE_LM_POWERED,
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};
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struct scmi_imx_lmm_info {
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u32 lmid;
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enum scmi_imx_lmm_state state;
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u32 errstatus;
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u8 name[LMM_MAX_NAME];
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};
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#if IS_ENABLED(CONFIG_IMX_SM_LMM)
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int scmi_imx_lmm_info(struct udevice *dev, u32 lmid, struct scmi_imx_lmm_info *info);
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int scmi_imx_lmm_power_boot(struct udevice *dev, u32 lmid, bool boot);
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int scmi_imx_lmm_reset_vector_set(struct udevice *dev, u32 lmid, u32 cpuid, u32 flags, u64 vector);
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int scmi_imx_lmm_shutdown(struct udevice *dev, u32 lmid, bool flags);
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#else
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static inline int scmi_imx_lmm_info(struct udevice *dev, u32 lmid, struct scmi_imx_lmm_info *info)
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{
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return -EOPNOTSUPP;
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}
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static inline int scmi_imx_lmm_power_boot(struct udevice *dev, u32 lmid, bool boot)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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scmi_imx_lmm_reset_vector_set(struct udevice *dev, u32 lmid, u32 cpuid, u32 flags, u64 vector)
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{
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return -EOPNOTSUPP;
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}
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static inline int scmi_imx_lmm_shutdown(struct udevice *dev, u32 lmid, bool flags)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#endif
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