diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/qoriq/irq/irq.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/irq/irq.c | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c b/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c deleted file mode 100644 index 625b9fce1b..0000000000 --- a/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c +++ /dev/null @@ -1,387 +0,0 @@ -/** - * @file - * - * @ingroup QorIQ - * - * @brief Interrupt implementation. - */ - -/* - * Copyright (c) 2010, 2017 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Dornierstr. 4 - * 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 <sys/param.h> - -#include <rtems.h> - -#include <libcpu/powerpc-utility.h> - -#include <asm/epapr_hcalls.h> - -#include <bsp.h> -#include <bsp/irq.h> -#include <bsp/irq-generic.h> -#include <bsp/vectors.h> -#include <bsp/utility.h> -#include <bsp/qoriq.h> - -#ifdef RTEMS_SMP -#include <rtems/score/smpimpl.h> -#endif - -RTEMS_INTERRUPT_LOCK_DEFINE(static, lock, "QorIQ IRQ") - -#define SPURIOUS 0xffff - -#ifdef QORIQ_IS_HYPERVISOR_GUEST - -void bsp_interrupt_set_affinity( - rtems_vector_number vector, - const Processor_mask *affinity -) -{ - uint32_t config; - unsigned int priority; - uint32_t destination; - uint32_t new_destination; - rtems_interrupt_lock_context lock_context; - - new_destination = _Processor_mask_Find_last_set(affinity) - 1; - - rtems_interrupt_lock_acquire(&lock, &lock_context); - ev_int_get_config(vector, &config, &priority, &destination); - ev_int_set_config(vector, config, priority, new_destination); - rtems_interrupt_lock_release(&lock, &lock_context); -} - -void bsp_interrupt_get_affinity( - rtems_vector_number vector, - Processor_mask *affinity -) -{ - uint32_t config; - unsigned int priority; - uint32_t destination; - - ev_int_get_config(vector, &config, &priority, &destination); - _Processor_mask_From_uint32_t(affinity, destination, 0); -} - -void bsp_interrupt_vector_enable(rtems_vector_number vector) -{ - bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); - ev_int_set_mask(vector, 0); -} - -void bsp_interrupt_vector_disable(rtems_vector_number vector) -{ - bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); - ev_int_set_mask(vector, 1); -} - -void bsp_interrupt_dispatch(uintptr_t exception_number) -{ - unsigned int vector; - - if (exception_number == 10) { - qoriq_decrementer_dispatch(); - return; - } - -#ifdef RTEMS_SMP - if (exception_number == 36) { - _SMP_Inter_processor_interrupt_handler(); - return; - } -#endif - - /* - * This works only if the "has-external-proxy" property is present in the - * "epapr,hv-pic" device tree node. - */ - vector = PPC_SPECIAL_PURPOSE_REGISTER(FSL_EIS_EPR); - - if (vector != SPURIOUS) { - uint32_t msr; - - msr = ppc_external_exceptions_enable(); - bsp_interrupt_handler_dispatch(vector); - ppc_external_exceptions_disable(msr); - - ev_int_eoi(vector); - } else { - bsp_interrupt_handler_default(vector); - } -} - -rtems_status_code bsp_interrupt_facility_initialize(void) -{ - unsigned int i; - - for (i = BSP_INTERRUPT_VECTOR_MIN; i <= BSP_INTERRUPT_VECTOR_MAX; ++i) { - uint32_t config; - unsigned int priority; - uint32_t destination; - unsigned int err; - - err = ev_int_get_config(i, &config, &priority, &destination); - if (err != EV_SUCCESS) - continue; - - priority = QORIQ_PIC_PRIORITY_DEFAULT; - - ev_int_set_config(i, config, priority, destination); - } - - return RTEMS_SUCCESSFUL; -} - -#else /* !QORIQ_IS_HYPERVISOR_GUEST */ - -#define VPR_MSK BSP_BBIT32(0) -#define VPR_A BSP_BBIT32(1) -#define VPR_P BSP_BBIT32(8) -#define VPR_S BSP_BBIT32(9) -#define VPR_PRIORITY(val) BSP_BFLD32(val, 12, 15) -#define VPR_PRIORITY_GET(reg) BSP_BFLD32GET(reg, 12, 15) -#define VPR_PRIORITY_SET(reg, val) BSP_BFLD32SET(reg, val, 12, 15) -#define VPR_VECTOR(val) BSP_BFLD32(val, 16, 31) -#define VPR_VECTOR_GET(reg) BSP_BFLD32GET(reg, 16, 31) -#define VPR_VECTOR_SET(reg, val) BSP_BFLD32SET(reg, val, 16, 31) - -#define GCR_RST BSP_BBIT32(0) -#define GCR_M BSP_BBIT32(2) - -#define SRC_CFG_IDX(i) ((i) - QORIQ_IRQ_EXT_BASE) - -static const uint16_t src_cfg_offsets [] = { - [SRC_CFG_IDX(QORIQ_IRQ_EXT_0)] = 0x10000 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_1)] = 0x10020 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_2)] = 0x10040 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_3)] = 0x10060 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_4)] = 0x10080 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_5)] = 0x100a0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_6)] = 0x100c0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_7)] = 0x100e0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_8)] = 0x10100 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_9)] = 0x10120 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_10)] = 0x10140 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_EXT_11)] = 0x10160 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_IPI_0)] = 0x010a0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_IPI_1)] = 0x010b0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_IPI_2)] = 0x010c0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_IPI_3)] = 0x010d0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_0)] = 0x11600 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_1)] = 0x11620 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_2)] = 0x11640 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_3)] = 0x11660 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_4)] = 0x11680 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_5)] = 0x116a0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_6)] = 0x116c0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MI_7)] = 0x116e0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_0)] = 0x11c00 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_1)] = 0x11c20 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_2)] = 0x11c40 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_3)] = 0x11c60 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_4)] = 0x11c80 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_5)] = 0x11ca0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_6)] = 0x11cc0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_MSI_7)] = 0x11ce0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_A_0)] = 0x01120 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_A_1)] = 0x01160 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_A_2)] = 0x011a0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_A_3)] = 0x011e0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_B_0)] = 0x02120 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_B_1)] = 0x02160 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_B_2)] = 0x021a0 >> 4, - [SRC_CFG_IDX(QORIQ_IRQ_GT_B_3)] = 0x021e0 >> 4 -}; - -static volatile qoriq_pic_src_cfg *get_src_cfg(rtems_vector_number vector) -{ - uint32_t n = MIN(RTEMS_ARRAY_SIZE(qoriq.pic.ii_0), QORIQ_IRQ_EXT_BASE); - - if (vector < n) { - return &qoriq.pic.ii_0 [vector]; - } else if (vector < QORIQ_IRQ_EXT_BASE) { - return &qoriq.pic.ii_1 [vector - n]; - } else { - uintptr_t offs = ((uintptr_t) - src_cfg_offsets [vector - QORIQ_IRQ_EXT_BASE]) << 4; - - return (volatile qoriq_pic_src_cfg *) ((uintptr_t) &qoriq.pic + offs); - } -} - -rtems_status_code qoriq_pic_set_priority( - rtems_vector_number vector, - int new_priority, - int *old_priority -) -{ - rtems_status_code sc = RTEMS_SUCCESSFUL; - uint32_t old_vpr = 0; - - if (bsp_interrupt_is_valid_vector(vector)) { - volatile qoriq_pic_src_cfg *src_cfg = get_src_cfg(vector); - - if (QORIQ_PIC_PRIORITY_IS_VALID(new_priority)) { - rtems_interrupt_lock_context lock_context; - - rtems_interrupt_lock_acquire(&lock, &lock_context); - old_vpr = src_cfg->vpr; - src_cfg->vpr = VPR_PRIORITY_SET(old_vpr, (uint32_t) new_priority); - rtems_interrupt_lock_release(&lock, &lock_context); - } else if (new_priority < 0) { - old_vpr = src_cfg->vpr; - } else { - sc = RTEMS_INVALID_PRIORITY; - } - } else { - sc = RTEMS_INVALID_ID; - } - - if (old_priority != NULL) { - *old_priority = (int) VPR_PRIORITY_GET(old_vpr); - } - - return sc; -} - -void bsp_interrupt_set_affinity( - rtems_vector_number vector, - const Processor_mask *affinity -) -{ - volatile qoriq_pic_src_cfg *src_cfg = get_src_cfg(vector); - - src_cfg->dr = _Processor_mask_To_uint32_t(affinity, 0); -} - -void bsp_interrupt_get_affinity( - rtems_vector_number vector, - Processor_mask *affinity -) -{ - volatile qoriq_pic_src_cfg *src_cfg = get_src_cfg(vector); - - _Processor_mask_From_uint32_t(affinity, src_cfg->dr, 0); -} - -static void pic_vector_enable(rtems_vector_number vector, uint32_t msk) -{ - volatile qoriq_pic_src_cfg *src_cfg = get_src_cfg(vector); - rtems_interrupt_lock_context lock_context; - - bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); - - rtems_interrupt_lock_acquire(&lock, &lock_context); - src_cfg->vpr = (src_cfg->vpr & ~VPR_MSK) | msk; - rtems_interrupt_lock_release(&lock, &lock_context); -} - -void bsp_interrupt_vector_enable(rtems_vector_number vector) -{ - pic_vector_enable(vector, 0); -} - -void bsp_interrupt_vector_disable(rtems_vector_number vector) -{ - pic_vector_enable(vector, VPR_MSK); -} - -void bsp_interrupt_dispatch(uintptr_t exception_number) -{ - rtems_vector_number vector = qoriq.pic.iack; - - if (vector != SPURIOUS) { - uint32_t msr = ppc_external_exceptions_enable(); - - bsp_interrupt_handler_dispatch(vector); - - ppc_external_exceptions_disable(msr); - - qoriq.pic.eoi = 0; - qoriq.pic.whoami; - } else { - bsp_interrupt_handler_default(vector); - } -} - -static bool pic_is_ipi(rtems_vector_number vector) -{ - return QORIQ_IRQ_IPI_0 <= vector && vector <= QORIQ_IRQ_IPI_3; -} - -static void pic_reset(void) -{ - qoriq.pic.gcr = GCR_RST; - while ((qoriq.pic.gcr & GCR_RST) != 0) { - /* Wait */ - } -} - -static void pic_global_timer_init(void) -{ - int i = 0; - - qoriq.pic.tcra = 0; - qoriq.pic.tcrb = 0; - - for (i = 0; i < 4; ++i) { - qoriq.pic.gta [0].bcr = GTBCR_CI; - qoriq.pic.gtb [0].bcr = GTBCR_CI; - } -} - -rtems_status_code bsp_interrupt_facility_initialize(void) -{ - rtems_vector_number i = 0; - uint32_t processor_id = ppc_processor_id(); - - if (processor_id == 0) { - /* Core 0 must do the basic initialization */ - - pic_reset(); - - for (i = BSP_INTERRUPT_VECTOR_MIN; i <= BSP_INTERRUPT_VECTOR_MAX; ++i) { - volatile qoriq_pic_src_cfg *src_cfg = get_src_cfg(i); - - src_cfg->vpr = VPR_MSK | VPR_P - | VPR_PRIORITY(QORIQ_PIC_PRIORITY_DEFAULT) | VPR_VECTOR(i); - - if (!pic_is_ipi(i)) { - src_cfg->dr = 0x1; - } - } - - qoriq.pic.mer03 = 0xf; - qoriq.pic.mer47 = 0xf; - qoriq.pic.svr = SPURIOUS; - qoriq.pic.gcr = GCR_M; - - pic_global_timer_init(); - } - - qoriq.pic.ctpr = 0; - - for (i = BSP_INTERRUPT_VECTOR_MIN; i <= BSP_INTERRUPT_VECTOR_MAX; ++i) { - qoriq.pic.iack; - qoriq.pic.eoi = 0; - qoriq.pic.whoami; - } - - return RTEMS_SUCCESSFUL; -} - -#endif /* QORIQ_IS_HYPERVISOR_GUEST */ |