linux-stable/arch/arm/mach-omap2/omap-secure.h
Arnd Bergmann deb4471167 ARM: omap: fix address space warnings from sparse
Moving sram code from plat-omap got the attention of the kernel test robot.

I found a few more places with related warnings because the sram
references are a mix of kernel pointers and __iomem pointers:

mach-omap1/sram-init.c:56:17: warning: cast removes address space '__iomem' of expression
mach-omap1/board-ams-delta.c:667:9: warning: incorrect type in argument 1 (different base types)
mach-omap2/sram.c:78:17: warning: cast removes address space '__iomem' of expression
mach-omap2/omap4-common.c:142:27: warning: incorrect type in assignment (different address spaces)
mach-omap2/omap4-common.c:142:27:    expected void [noderef] __iomem *static [toplevel] sram_sync
mach-omap2/omap4-common.c:142:27:    got void *
mach-omap2/pm34xx.c:113:45: warning: incorrect type in argument 1 (different address spaces)
mach-omap2/pm34xx.c:113:45:    expected void [noderef] __iomem *save_regs
mach-omap2/pm34xx.c:113:45:    got void *extern [addressable] [toplevel] omap3_secure_ram_storage

There is no good solution here, as sram is a bit special in this
regard. Change the annotations to at least shut up the warnings.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-04-29 09:53:28 +02:00

95 lines
2.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* omap-secure.h: OMAP Secure infrastructure header.
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Santosh Shilimkar <santosh.shilimkar@ti.com>
* Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
* Copyright (C) 2013 Pali Rohár <pali@kernel.org>
*/
#ifndef OMAP_ARCH_OMAP_SECURE_H
#define OMAP_ARCH_OMAP_SECURE_H
#include <linux/types.h>
/* Monitor error code */
#define API_HAL_RET_VALUE_NS2S_CONVERSION_ERROR 0xFFFFFFFE
#define API_HAL_RET_VALUE_SERVICE_UNKNWON 0xFFFFFFFF
/* HAL API error codes */
#define API_HAL_RET_VALUE_OK 0x00
#define API_HAL_RET_VALUE_FAIL 0x01
/* Secure HAL API flags */
#define FLAG_START_CRITICAL 0x4
#define FLAG_IRQFIQ_MASK 0x3
#define FLAG_IRQ_ENABLE 0x2
#define FLAG_FIQ_ENABLE 0x1
#define NO_FLAG 0x0
/* Maximum Secure memory storage size */
#define OMAP_SECURE_RAM_STORAGE (88 * SZ_1K)
#define OMAP3_SAVE_SECURE_RAM_SZ 0x803F
/* Secure low power HAL API index */
#define OMAP4_HAL_SAVESECURERAM_INDEX 0x1a
#define OMAP4_HAL_SAVEHW_INDEX 0x1b
#define OMAP4_HAL_SAVEALL_INDEX 0x1c
#define OMAP4_HAL_SAVEGIC_INDEX 0x1d
/* Secure Monitor mode APIs */
#define OMAP4_MON_SCU_PWR_INDEX 0x108
#define OMAP4_MON_L2X0_DBG_CTRL_INDEX 0x100
#define OMAP4_MON_L2X0_CTRL_INDEX 0x102
#define OMAP4_MON_L2X0_AUXCTRL_INDEX 0x109
#define OMAP4_MON_L2X0_PREFETCH_INDEX 0x113
#define OMAP5_DRA7_MON_SET_CNTFRQ_INDEX 0x109
#define OMAP5_MON_AMBA_IF_INDEX 0x108
#define OMAP5_DRA7_MON_SET_ACR_INDEX 0x107
/* Secure PPA(Primary Protected Application) APIs */
#define OMAP4_PPA_SERVICE_0 0x21
#define OMAP4_PPA_L2_POR_INDEX 0x23
#define OMAP4_PPA_CPU_ACTRL_SMP_INDEX 0x25
#define AM43xx_PPA_SVC_PM_SUSPEND 0x71
#define AM43xx_PPA_SVC_PM_RESUME 0x72
/* Secure RX-51 PPA (Primary Protected Application) APIs */
#define RX51_PPA_HWRNG 29
#define RX51_PPA_L2_INVAL 40
#define RX51_PPA_WRITE_ACR 42
#ifndef __ASSEMBLER__
extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
u32 arg1, u32 arg2, u32 arg3, u32 arg4);
extern void omap_smccc_smc(u32 fn, u32 arg);
extern void omap_smc1(u32 fn, u32 arg);
extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
extern phys_addr_t omap_secure_ram_mempool_base(void);
extern int omap_secure_ram_reserve_memblock(void);
extern u32 save_secure_ram_context(u32 args_pa);
extern u32 omap3_save_secure_ram(void *save_regs, int size);
extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
u32 arg1, u32 arg2, u32 arg3, u32 arg4);
extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
extern bool optee_available;
void omap_secure_init(void);
#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
void set_cntfreq(void);
#else
static inline void set_cntfreq(void)
{
}
#endif
#endif /* __ASSEMBLER__ */
#endif /* OMAP_ARCH_OMAP_SECURE_H */