diff options
Diffstat (limited to 'core/arch/arm/plat-sunxi/main.c')
| -rw-r--r-- | core/arch/arm/plat-sunxi/main.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/core/arch/arm/plat-sunxi/main.c b/core/arch/arm/plat-sunxi/main.c new file mode 100644 index 0000000..3954d9d --- /dev/null +++ b/core/arch/arm/plat-sunxi/main.c @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2014, Allwinner Technology Co., Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <platform_config.h> + +#include <stdint.h> +#include <string.h> +#include <assert.h> + +#include <sm/sm.h> +#include <sm/tee_mon.h> +#include <sm/optee_smc.h> +#include <optee_msg.h> + +#include <arm.h> +#include <kernel/thread.h> +#include <kernel/time_source.h> +#include <kernel/panic.h> +#include <kernel/pm_stubs.h> +#include <kernel/misc.h> +#include <mm/tee_mmu.h> +#include <mm/core_mmu.h> +#include <tee/entry_std.h> +#include <tee/entry_fast.h> +#include <platform.h> +#include <util.h> +#include <trace.h> +#include <malloc.h> + +/* teecore heap address/size is defined in scatter file */ +extern unsigned char teecore_heap_start; +extern unsigned char teecore_heap_end; + +static void main_fiq(void); +static void main_tee_entry_std(struct thread_smc_args *args); +static void main_tee_entry_fast(struct thread_smc_args *args); + +static const struct thread_handlers handlers = { + .std_smc = main_tee_entry_std, + .fast_smc = main_tee_entry_fast, + .fiq = main_fiq, + .cpu_on = pm_panic, + .cpu_off = pm_panic, + .cpu_suspend = pm_panic, + .cpu_resume = pm_panic, + .system_off = pm_panic, + .system_reset = pm_panic, +}; + +void main_init(uint32_t nsec_entry); /* called from assembly only */ +void main_init(uint32_t nsec_entry) +{ + struct sm_nsec_ctx *nsec_ctx; + size_t pos = get_core_pos(); + + /* + * Mask IRQ and FIQ before switch to the thread vector as the + * thread handler requires IRQ and FIQ to be masked while executing + * with the temporary stack. The thread subsystem also asserts that + * IRQ is blocked when using most if its functions. + */ + thread_mask_exceptions(THREAD_EXCP_FIQ | THREAD_EXCP_IRQ); + + if (pos == 0) { + thread_init_primary(&handlers); + + /* initialize platform */ + platform_init(); + } + + thread_init_per_cpu(); + + /* Initialize secure monitor */ + nsec_ctx = sm_get_nsec_ctx(); + nsec_ctx->mon_lr = nsec_entry; + nsec_ctx->mon_spsr = CPSR_MODE_SVC | CPSR_I; + + if (pos == 0) { + unsigned long a, s; + /* core malloc pool init */ +#ifdef CFG_TEE_MALLOC_START + a = CFG_TEE_MALLOC_START; + s = CFG_TEE_MALLOC_SIZE; +#else + a = (unsigned long)&teecore_heap_start; + s = (unsigned long)&teecore_heap_end; + a = ((a + 1) & ~0x0FFFF) + 0x10000; /* 64kB aligned */ + s = s & ~0x0FFFF; /* 64kB aligned */ + s = s - a; +#endif + malloc_add_pool((void *)a, s); + + teecore_init_ta_ram(); + + if (init_teecore() != TEE_SUCCESS) { + panic(); + } + } + + IMSG("optee initialize finished\n"); +} + +static void main_fiq(void) +{ + panic(); +} + +static void main_tee_entry_fast(struct thread_smc_args *args) +{ + /* TODO move to main_init() */ + if (init_teecore() != TEE_SUCCESS) + panic(); + + /* SiP Service Call Count */ + if (args->a0 == OPTEE_SMC_SIP_SUNXI_CALLS_COUNT) { + args->a0 = 1; + return; + } + + /* SiP Service Call UID */ + if (args->a0 == OPTEE_SMC_SIP_SUNXI_CALLS_UID) { + args->a0 = OPTEE_SMC_SIP_SUNXI_UID_R0; + args->a1 = OPTEE_SMC_SIP_SUNXI_UID_R1; + args->a2 = OPTEE_SMC_SIP_SUNXI_UID_R2; + args->a3 = OPTEE_SMC_SIP_SUNXI_UID_R3; + return; + } + + /* SiP Service Calls */ + if (args->a0 == OPTEE_SMC_OPTEE_FAST_CALL_SIP_SUNXI) { + platform_smc_handle(args); + return; + } + + tee_entry_fast(args); +} + + + +static void main_tee_entry_std(struct thread_smc_args *args) +{ + /* TODO move to main_init() */ + if (init_teecore() != TEE_SUCCESS) + panic(); + + tee_entry_std(args); +} + +/* main_tee_entry_fast() supports 3 platform-specific functions */ +void tee_entry_get_api_call_count(struct thread_smc_args *args) +{ + args->a0 = tee_entry_generic_get_api_call_count() + 3; +} |