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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b8eb35fd59
- Adds a module to provide calls into secure monitor mode - Uses this module to make secure monitor calls to enable L2 cache. Updates from V1: - Split DT portion into separate patch - replace #ifdef-ed L2 code with "if". - move init call to board init Signed-off-by: Christian Daudt <csd@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
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* Copyright (C) 2013 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef BCM_KONA_SMC_H
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#define BCM_KONA_SMC_H
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#include <linux/types.h>
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#define FLAGS (SEC_ROM_ICACHE_ENABLE_MASK | SEC_ROM_DCACHE_ENABLE_MASK | \
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SEC_ROM_IRQ_ENABLE_MASK | SEC_ROM_FIQ_ENABLE_MASK)
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/*!
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* Definitions for IRQ & FIQ Mask for ARM
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*/
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#define FIQ_IRQ_MASK 0xC0
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#define FIQ_MASK 0x40
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#define IRQ_MASK 0x80
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/*!
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* Secure Mode FLAGs
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*/
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/* When set, enables ICache within the secure mode */
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#define SEC_ROM_ICACHE_ENABLE_MASK 0x00000001
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/* When set, enables DCache within the secure mode */
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#define SEC_ROM_DCACHE_ENABLE_MASK 0x00000002
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/* When set, enables IRQ within the secure mode */
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#define SEC_ROM_IRQ_ENABLE_MASK 0x00000004
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/* When set, enables FIQ within the secure mode */
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#define SEC_ROM_FIQ_ENABLE_MASK 0x00000008
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/* When set, enables Unified L2 cache within the secure mode */
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#define SEC_ROM_UL2_CACHE_ENABLE_MASK 0x00000010
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/* Broadcom Secure Service API Service IDs */
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#define SSAPI_DORMANT_ENTRY_SERV 0x01000000
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#define SSAPI_PUBLIC_OTP_SERV 0x01000001
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#define SSAPI_ENABLE_L2_CACHE 0x01000002
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#define SSAPI_DISABLE_L2_CACHE 0x01000003
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#define SSAPI_WRITE_SCU_STATUS 0x01000004
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#define SSAPI_WRITE_PWR_GATE 0x01000005
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/* Broadcom Secure Service API Return Codes */
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#define SEC_ROM_RET_OK 0x00000001
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#define SEC_ROM_RET_FAIL 0x00000009
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#define SSAPI_RET_FROM_INT_SERV 0x4
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#define SEC_EXIT_NORMAL 0x1
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#define SSAPI_ROW_AES 0x0E000006
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#define SSAPI_BRCM_START_VC_CORE 0x0E000008
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#ifndef __ASSEMBLY__
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extern void bcm_kona_smc_init(void);
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extern unsigned bcm_kona_smc(unsigned service_id,
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unsigned arg0,
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unsigned arg1,
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unsigned arg2,
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unsigned arg3);
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extern int bcm_kona_smc_asm(u32 service_id,
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u32 buffer_addr);
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#endif /* __ASSEMBLY__ */
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#endif /* BCM_KONA_SMC_H */
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