diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/qoriq/shmsupp/intercom-mpci.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/shmsupp/intercom-mpci.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/shmsupp/intercom-mpci.c b/c/src/lib/libbsp/powerpc/qoriq/shmsupp/intercom-mpci.c deleted file mode 100644 index 2cc45dd079..0000000000 --- a/c/src/lib/libbsp/powerpc/qoriq/shmsupp/intercom-mpci.c +++ /dev/null @@ -1,124 +0,0 @@ -/** - * @file - * - * @ingroup QorIQInterCom - * - * @brief Inter-Processor Communication implementation. - */ - -/* - * Copyright (c) 2011 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Obere Lagerstr. 30 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <assert.h> - -#include <libcpu/powerpc-utility.h> - -#include <bsp/intercom.h> - -#ifdef RTEMS_MULTIPROCESSING - -typedef struct { - intercom_packet *head; - intercom_packet *tail; -} mpic_fifo; - -static mpic_fifo fifo; - -static void mpci_service(intercom_packet *packet, void *arg) -{ - rtems_interrupt_level level; - - rtems_interrupt_disable(level); - packet->glue.next = NULL; - if (fifo.head != NULL) { - fifo.tail->glue.next = packet; - } else { - fifo.head = packet; - } - fifo.tail = packet; - rtems_interrupt_enable(level); - - rtems_multiprocessing_announce(); -} - -static void mpci_init(void) -{ - qoriq_intercom_service_install(INTERCOM_TYPE_MPCI, mpci_service, NULL); -} - -static intercom_packet *packet_of_prefix(rtems_packet_prefix *prefix) -{ - return (intercom_packet *) ((char *) prefix - sizeof(intercom_packet)); -} - -static rtems_packet_prefix *prefix_of_packet(intercom_packet *packet) -{ - return (rtems_packet_prefix *) packet->data; -} - -static void mpci_get_packet(rtems_packet_prefix **prefix_ptr) -{ - intercom_packet *packet = qoriq_intercom_allocate_packet( - INTERCOM_TYPE_MPCI, - INTERCOM_SIZE_512 - ); - *prefix_ptr = prefix_of_packet(packet); -} - -static void mpci_return_packet(rtems_packet_prefix *prefix) -{ - intercom_packet *packet = packet_of_prefix(prefix); - - qoriq_intercom_free_packet(packet); -} - -static void mpci_send_packet(uint32_t destination_node, rtems_packet_prefix *prefix) -{ - intercom_packet *packet = packet_of_prefix(prefix); - if (destination_node != MPCI_ALL_NODES) { - qoriq_intercom_send_packet((int) destination_node - 1, packet); - } else { - uint32_t self = ppc_processor_id(); - int other = self == 0 ? 1 : 0; - - qoriq_intercom_send_packet(other, packet); - } -} - -static void mpci_receive_packet(rtems_packet_prefix **prefix_ptr) -{ - rtems_interrupt_level level; - - rtems_interrupt_disable(level); - intercom_packet *packet = fifo.head; - if (packet != NULL) { - fifo.head = packet->glue.next; - *prefix_ptr = prefix_of_packet(packet); - } else { - *prefix_ptr = NULL; - } - rtems_interrupt_enable(level); -} - -rtems_mpci_table qoriq_intercom_mpci = { - .default_timeout = UINT32_MAX, - .maximum_packet_size = 512, - .initialization = mpci_init, - .get_packet = mpci_get_packet, - .return_packet = mpci_return_packet, - .send_packet = mpci_send_packet, - .receive_packet = mpci_receive_packet -}; - -#endif /* RTEMS_MULTIPROCESSING */ |