diff options
Diffstat (limited to 'plat/arm/css/sgi/sgi_ras.c')
-rw-r--r-- | plat/arm/css/sgi/sgi_ras.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/plat/arm/css/sgi/sgi_ras.c b/plat/arm/css/sgi/sgi_ras.c deleted file mode 100644 index a04972d706..0000000000 --- a/plat/arm/css/sgi/sgi_ras.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <assert.h> -#include <string.h> - -#include <bl31/interrupt_mgmt.h> -#include <lib/el3_runtime/context_mgmt.h> -#include <lib/extensions/ras.h> -#include <plat/arm/common/arm_spm_def.h> -#include <plat/common/platform.h> -#include <services/sdei.h> -#include <services/spm_mm_svc.h> - -#include <sgi_ras.h> - -static int sgi_ras_intr_handler(const struct err_record_info *err_rec, - int probe_data, - const struct err_handler_data *const data); -struct efi_guid { - uint32_t data1; - uint16_t data2; - uint16_t data3; - uint8_t data4[8]; -}; - -typedef struct mm_communicate_header { - struct efi_guid header_guid; - size_t message_len; - uint8_t data[8]; -} mm_communicate_header_t; - -struct sgi_ras_ev_map sgi575_ras_map[] = { - - /* DMC620 error overflow interrupt*/ - {SP_DMC_ERROR_OVERFLOW_EVENT_AARCH64, SGI_SDEI_DS_EVENT_1, 33}, - - /* DMC620 error ECC error interrupt*/ - {SP_DMC_ERROR_ECC_EVENT_AARCH64, SGI_SDEI_DS_EVENT_0, 35}, -}; - -#define SGI575_RAS_MAP_SIZE ARRAY_SIZE(sgi575_ras_map) - -struct err_record_info sgi_err_records[] = { - { - .handler = &sgi_ras_intr_handler, - }, -}; - -struct ras_interrupt sgi_ras_interrupts[] = { - { - .intr_number = 33, - .err_record = &sgi_err_records[0], - }, - { - .intr_number = 35, - .err_record = &sgi_err_records[0], - } -}; - -REGISTER_ERR_RECORD_INFO(sgi_err_records); -REGISTER_RAS_INTERRUPTS(sgi_ras_interrupts); - -static struct sgi_ras_ev_map *plat_sgi_get_ras_ev_map(void) -{ - return sgi575_ras_map; -} - -static int plat_sgi_get_ras_ev_map_size(void) -{ - return SGI575_RAS_MAP_SIZE; -} - -/* - * Find event mapping for a given interrupt number: On success, returns pointer - * to the event mapping. On error, returns NULL. - */ -static struct sgi_ras_ev_map *find_ras_event_map_by_intr(uint32_t intr_num) -{ - struct sgi_ras_ev_map *map = plat_sgi_get_ras_ev_map(); - int i; - int size = plat_sgi_get_ras_ev_map_size(); - - for (i = 0; i < size; i++) { - if (map->intr == intr_num) - return map; - - map++; - } - - return NULL; -} - -static void sgi_ras_intr_configure(int intr) -{ - plat_ic_set_interrupt_type(intr, INTR_TYPE_EL3); - plat_ic_set_interrupt_priority(intr, PLAT_RAS_PRI); - plat_ic_clear_interrupt_pending(intr); - plat_ic_set_spi_routing(intr, INTR_ROUTING_MODE_ANY, - (u_register_t)read_mpidr_el1()); - plat_ic_enable_interrupt(intr); -} - -static int sgi_ras_intr_handler(const struct err_record_info *err_rec, - int probe_data, - const struct err_handler_data *const data) -{ - struct sgi_ras_ev_map *ras_map; - mm_communicate_header_t *header; - uint32_t intr; - int ret; - - cm_el1_sysregs_context_save(NON_SECURE); - intr = data->interrupt; - - /* - * Find if this is a RAS interrupt. There must be an event against - * this interrupt - */ - ras_map = find_ras_event_map_by_intr(intr); - assert(ras_map != NULL); - - /* - * Populate the MM_COMMUNICATE payload to share the - * event info with StandaloneMM code. This allows us to use - * MM_COMMUNICATE as a common entry mechanism into S-EL0. The - * header data will be parsed in StandaloneMM to process the - * corresponding event. - * - * TBD - Currently, the buffer allocated by SPM for communication - * between EL3 and S-EL0 is being used(PLAT_SPM_BUF_BASE). But this - * should happen via a dynamic mem allocation, which should be - * managed by SPM -- the individual platforms then call the mem - * alloc api to get memory for the payload. - */ - header = (void *) PLAT_SPM_BUF_BASE; - memset(header, 0, sizeof(*header)); - memcpy(&header->data, &ras_map->ras_ev_num, - sizeof(ras_map->ras_ev_num)); - header->message_len = 4; - - spm_mm_sp_call(MM_COMMUNICATE_AARCH64, (uint64_t)header, 0, - plat_my_core_pos()); - - /* - * Do an EOI of the RAS interrupt. This allows the - * sdei event to be dispatched at the SDEI event's - * priority. - */ - plat_ic_end_of_interrupt(intr); - - /* Dispatch the event to the SDEI client */ - ret = sdei_dispatch_event(ras_map->sdei_ev_num); - if (ret != 0) { - /* - * sdei_dispatch_event() may return failing result in some cases, - * for example kernel may not have registered a handler or RAS event - * may happen early during boot. We restore the NS context when - * sdei_dispatch_event() returns failing result. - */ - ERROR("SDEI dispatch failed: %d", ret); - cm_el1_sysregs_context_restore(NON_SECURE); - cm_set_next_eret_context(NON_SECURE); - } - - return ret; -} - -int sgi_ras_intr_handler_setup(void) -{ - int i; - struct sgi_ras_ev_map *map = plat_sgi_get_ras_ev_map(); - int size = plat_sgi_get_ras_ev_map_size(); - - for (i = 0; i < size; i++) { - sgi_ras_intr_configure(map->intr); - map++; - } - - INFO("SGI: RAS Interrupt Handler successfully registered\n"); - - return 0; -} |