interrupts: new static IRQ API

The interrupt API has been redesigned:

- irq_connect() for dynamic interrupts renamed to irq_connect_dynamic().
  It will be used in situations where the new static irq_connect()
  won't work, i.e. the value of arguments can't be computed at build time
- a new API for static interrupts replaces irq_connect(). it is used
  exactly the same way as its dynamic counterpart. The old static irq
  macros will be removed
- Separate stub assembly files are no longer needed as the stubs are now
  generated inline with irq_connect()

ReST documentation updated for the changed API. Some detail about the
IDT in ROM added, and an oblique reference to the internal-only
_irq_handler_set() API removed; we don't talk about internal APIs in
the official documentation.

Change-Id: I280519993da0e0fe671eb537a876f67de33d3cd4
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

arch/arc/core/irq_manage.c

@@ -155,7 +155,7 @@ void _irq_spurious(void *unused)
  * @return the interrupt line number
  */
 
-int irq_connect(
+int irq_connect_dynamic(
 	unsigned int irq,
 	unsigned int prio,
 	void (*isr)(void *arg),

arch/arc/soc/quark_se_ss/soc_config.c

@@ -22,12 +22,10 @@
 #include <ipm.h>
 #include <ipm/ipm_quark_se.h>
 
-IRQ_CONNECT_STATIC(quark_se_ipm, QUARK_SE_IPM_INTERRUPT,
-		   QUARK_SE_IPM_INTERRUPT_PRI, quark_se_ipm_isr, NULL, 0);
-
 static int arc_quark_se_ipm_init(void)
 {
-	IRQ_CONFIG(quark_se_ipm, QUARK_SE_IPM_INTERRUPT);
+	irq_connect(QUARK_SE_IPM_INTERRUPT, QUARK_SE_IPM_INTERRUPT_PRI,
+		    quark_se_ipm_isr, NULL, 0);
 	irq_enable(QUARK_SE_IPM_INTERRUPT);
 	return DEV_OK;
 }

arch/arm/core/irq_manage.c

@@ -136,7 +136,7 @@ void _irq_spurious(void *unused)
  *
  * @return the interrupt line number
  */
-int irq_connect(unsigned int irq,
+int irq_connect_dynamic(unsigned int irq,
 					    unsigned int prio,
 					    void (*isr)(void *arg),
 					    void *arg,

arch/x86/core/Makefile

@@ -20,8 +20,7 @@ endif
 obj-y += gdt.o fatal.o cpuhalt.o \
 	msr.o dynamic.o intconnect.o \
 	excconnect.o sys_fatal_error_handler.o \
-	crt0.o driver_static_irq_stubs.o \
+	crt0.o atomic.o cache_s.o cache.o excstub.o
-	atomic.o cache_s.o cache.o excstub.o
 
 obj-$(CONFIG_IRQ_OFFLOAD) += irq_offload.o
 obj-$(CONFIG_FP_SHARING) += float.o

arch/x86/core/driver_static_irq_stubs.S

@@ -1,43 +0,0 @@
-/*
- * Copyright (c) 2012-2015, Wind River Systems, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief Interrupt stubs
- *
- * This module contains the static interrupt stubs for the various drivers employed
- * by x86 platforms.
- */
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#include <drivers/loapic.h>
-#include <drivers/system_timer.h>
-
-#if defined(CONFIG_LOAPIC_TIMER)
-	loapic_mkstub loapic _timer_int_handler 0
-#endif
-
-#if defined(CONFIG_HPET_TIMER)
-	ioapic_mkstub hpet _timer_int_handler 0
-#endif
-
-	/* externs (internal APIs) */
-
-	GTEXT(_IntEnt)
-	GTEXT(_IntExit)

arch/x86/core/intconnect.c

@@ -202,7 +202,7 @@ extern void *_DynIntStubsBegin;
  * vectors remaining in the specified <priority> level.
  */
 
-int irq_connect(unsigned int irq, unsigned int priority,
+int irq_connect_dynamic(unsigned int irq, unsigned int priority,
 		void (*routine)(void *parameter), void *parameter,
 		uint32_t flags)
 {

arch/x86/soc/quark_se/soc_config.c

@@ -27,12 +27,10 @@
 #include <ipm.h>
 #include <ipm/ipm_quark_se.h>
 
-IRQ_CONNECT_STATIC(quark_se_ipm, QUARK_SE_IPM_INTERRUPT, QUARK_SE_IPM_INTERRUPT_PRI,
-		   quark_se_ipm_isr, NULL, 0);
-
 static int x86_quark_se_ipm_init(void)
 {
-	IRQ_CONFIG(quark_se_ipm, QUARK_SE_IPM_INTERRUPT);
+	irq_connect(QUARK_SE_IPM_INTERRUPT, QUARK_SE_IPM_INTERRUPT_PRI,
+		    quark_se_ipm_isr, NULL, 0);
 	irq_enable(QUARK_SE_IPM_INTERRUPT);
 	return DEV_OK;
 }

doc/kernel/nanokernel/nanokernel_interrupts.rst

@@ -95,7 +95,8 @@ Example
 
    #define MY_DEV_IRQ  24       /* device uses IRQ 24 */
    #define MY_DEV_PRIO  2       /* device uses interrupt priority 2 */
-   #define MY_ISR_ARG  17       /* argument passed to my_isr() */
+   /* argument passed to my_isr(), in this case a pointer to the device */
+   #define MY_ISR_ARG  SYS_GET_DEVICE(my_device)
    #define MY_IRQ_FLAGS 0       /* IRQ flags. Unused on non-x86 */
 
    void my_isr(void *arg)
@@ -103,23 +104,14 @@ Example
       ... /* ISR code */
    }
 
-   IRQ_CONNECT_STATIC(my_dev, MY_DEV_IRQ, MY_DEV_PRIO, my_isr, MY_ISR_ARG,
-       MY_IRQ_FLAGS);
-
    void my_isr_installer(void)
    {
       ...
-      IRQ_CONFIG(my_dev, MY_DEV_IRQ); /* finish IRQ configuration */
+      irq_connect(MY_DEV_IRQ, MY_DEV_PRIO, my_isr, MY_ISR_ARG, MY_IRQ_FLAGS);
       irq_enable(MY_DEV_IRQ);            /* enable IRQ */
       ...
    }
 
-For x86 platforms only, you must also create an interrupt stub as follows:
-
-.. code-block:: asm
-
-   ioapic_mkstub my_dev my_isr
-
 Installing a Dynamic ISR
 ========================
 
@@ -127,11 +119,6 @@ Use a dynamic ISR to register an interrupt handler when the interrupt
 parameters can be found out only at runtime, or when a device is not always
 present in the system.
 
-.. note::
-
-   There is no API method to uninstall a dynamic ISR; however, it is
-   possible to replace it with a different dynamic ISR.
-
 Prerequisites
 -------------
 
@@ -161,7 +148,8 @@ This is an example of a dynamic interrupt for x86:
    void my_isr_installer(void)
    {
        ...
-       irq_connect(MY_DEV_IRQ, MY_DEV_PRIO, my_isr, MY_ISR_ARG, MY_IRQ_FLAGS);
+       irq_connect_dynamic(MY_DEV_IRQ, MY_DEV_PRIO, my_isr, MY_ISR_ARG,
+                           MY_IRQ_FLAGS);
        ...
        irq_enable(MY_DEV_IRQ);
        ...
@@ -235,20 +223,18 @@ IDT Security
 
 Ideally, the IDT memory area should be protected against accidental
 modification, in the same way that text and read-only data areas
-are protected.
+are protected. If no dynamic interrupts are in use, i.e.
-
+:option:`NUM_DYNAMIC_STUBS` is 0, the IDT will be located in ROM.
-Currently, the IDT is always located read-write memory and is
-therefore *not* protected. This is true even for systems using
-:abbr:`XIP (Execute in Place)`, where the text and read-only data areas
-reside in read-only memory (such as flash memory or ROM).
 
+If a particular project is ROM space-constrained, it's possible to
+force the IDT to be located in RAM via :option:`FORCE_IRQ_VECTOR_TABLE_RAM`.
 
 APIs
 ****
 
 These are the interrupt-related Application Program Interfaces.
 
-:c:func:`irq_connect()`
+:c:func:`irq_connect_dynamic()`
    Registers a dynamic ISR with the IDT and interrupt controller.
 
 :c:func:`irq_enable()`
@@ -268,8 +254,6 @@ Macros
 
 These are the macros used to install a static ISR.
 
-:c:macro:`IRQ_CONNECT_STATIC( )`
+:c:macro:`irq_connect()`
    Registers a static ISR with the IDT.
 
-:c:macro:`IRQ_CONFIG( )`
-   Registers a static ISR with the interrupt controller.

doc/platform/frdm_k64f.rst

@@ -277,7 +277,7 @@ For example, if 3 bits are implemented, use 1, 2, and 3,
 not 0x20h, 0x40h, and 0x60h.
 
 Interrupt priority is set using the *prio* parameter of
-:c:func:`irq_connect()`.
+:c:macro:`irq_connect()` or :c:func:`irq_connect_dynamic()`.
 
 The range of available priorities is different if using Zero Latency Interrupts
 (ZLI) or not.

drivers/adc/adc_dw.c

@@ -53,7 +53,7 @@
 #else
 #define int_unmask(...) { ; }
 #endif
-static void adc_config_0_irq(struct device *dev);
+static void adc_config_0_irq(void);
 
 static void adc_goto_normal_mode_wo_calibration(void)
 {
@@ -259,7 +259,7 @@ int adc_dw_init(struct device *dev)
 	sys_out32(ADC_INT_ENABLE & ~(ADC_CLK_ENABLE),
 		adc_base + ADC_CTRL);
 
-	config->config_func(dev);
+	config->config_func();
 
 	int_unmask(config->reg_irq_mask);
 	int_unmask(config->reg_err_mask);
@@ -340,8 +340,6 @@ struct adc_config adc_config_dev_0 = {
 		.reg_base = PERIPH_ADDR_BASE_ADC,
 		.reg_irq_mask = SCSS_REGISTER_BASE + INT_SS_ADC_IRQ_MASK,
 		.reg_err_mask = SCSS_REGISTER_BASE + INT_SS_ADC_ERR_MASK,
-		.rx_vector = CONFIG_ADC_DW_0_RX_IRQ,
-		.err_vector = CONFIG_ADC_DW_0_ERR_IRQ,
 #ifdef CONFIG_ADC_DW_SINGLE_ENDED
 		.in_mode      = 0,
 #elif CONFIG_ADC_DW_DIFFERENTIAL
@@ -376,25 +374,14 @@ DECLARE_DEVICE_INIT_CONFIG(adc_dw_0,	/* config name*/
 SYS_DEFINE_DEVICE(adc_dw_0, &adc_info_dev_0, SECONDARY,
 					CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
 
-IRQ_CONNECT_STATIC(adc_dw_0_rx,
+static void adc_config_0_irq(void)
-		CONFIG_ADC_DW_0_RX_IRQ,
-		CONFIG_ADC_DW_0_PRI,
-		adc_dw_rx_isr,
-		SYS_GET_DEVICE(adc_dw_0), 0);
-
-IRQ_CONNECT_STATIC(adc_dw_0_err,
-		CONFIG_ADC_DW_0_ERR_IRQ,
-		CONFIG_ADC_DW_0_PRI,
-		adc_dw_err_isr,
-		SYS_GET_DEVICE(adc_dw_0), 0);
-
-static void adc_config_0_irq(struct device *dev)
 {
-	struct adc_config *config = dev->config->config_info;
+	irq_connect(CONFIG_ADC_DW_0_RX_IRQ, CONFIG_ADC_DW_0_PRI, adc_dw_rx_isr,
+		    SYS_GET_DEVICE(adc_dw_0), 0);
+	irq_enable(CONFIG_ADC_DW_0_RX_IRQ);
 
-	IRQ_CONFIG(adc_dw_0_rx, CONFIG_ADC_DW_0_RX_IRQ);
+	irq_connect(CONFIG_ADC_DW_0_ERR_IRQ, CONFIG_ADC_DW_0_PRI,
-	irq_enable(config->rx_vector);
+		    adc_dw_err_isr, SYS_GET_DEVICE(adc_dw_0), 0);
-	IRQ_CONFIG(adc_dw_0_err, CONFIG_ADC_DW_0_ERR_IRQ);
+	irq_enable(CONFIG_ADC_DW_0_ERR_IRQ);
-	irq_enable(config->err_vector);
 }
 #endif

drivers/adc/adc_dw.h

@@ -145,7 +145,7 @@
 #define ss_adc_data_to_mv(_data_, _resolution_) \
 	((_data_ * ADC_VREF) / (1 << _resolution_))
 
-typedef void (*adc_dw_config_t)(struct device *dev);
+typedef void (*adc_dw_config_t)(void);
 /** @brief ADC configuration
  * This structure defines the ADC configuration values
  * that define the ADC hardware instance and configuration.
@@ -157,10 +157,6 @@ struct adc_config {
 	uint32_t reg_irq_mask;
 	/**IIO address for the error mask register.*/
 	uint32_t reg_err_mask;
-	/**Interruption vector for the reception ISR.*/
-	uint8_t  rx_vector;
-	/**Interruption vector for the error ISR.*/
-	uint8_t  err_vector;
 	/**Input mode*/
 	uint8_t  in_mode;
 	/**Output mode*/

drivers/aio/Makefile

@@ -1 +1 @@
-obj-$(CONFIG_AIO_DW_COMPARATOR) += aio_dw_comparator.o aio_static_irq_stubs.o
+obj-$(CONFIG_AIO_DW_COMPARATOR) += aio_dw_comparator.o

drivers/aio/aio_dw_comparator.c

@@ -213,20 +213,11 @@ struct dw_aio_cmp_dev_data_t dw_aio_cmp_dev_data = {
 SYS_DEFINE_DEVICE(dw_aio_cmp, &dw_aio_cmp_dev_data, SECONDARY,
 	CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
 
-struct device *dw_aio_cmp_device = SYS_GET_DEVICE(dw_aio_cmp);
-
-IRQ_CONNECT_STATIC(dw_aio_cmp,
-		   INT_AIO_CMP_IRQ,
-		   0,
-		   dw_aio_cmp_isr,
-		   0,
-		   0);
-
 static int dw_aio_cmp_config(struct device *dev)
 {
 	ARG_UNUSED(dev);
 
-	IRQ_CONFIG(dw_aio_cmp, INT_AIO_CMP_IRQ);
+	irq_connect(INT_AIO_CMP_IRQ, 0, dw_aio_cmp_isr,
-
+		    SYS_GET_DEVICE(dw_aio_cmp), 0);
 	return DEV_OK;
 }

drivers/aio/aio_static_irq_stubs.S

@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief AIO interrupt stubs
- * This module contains the static interrupt stubs for the aio driver
- */
-
-#define _ASMLANGUAGE
-
-#ifdef CONFIG_X86
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#endif
-
-#if defined(CONFIG_AIO_DW_COMPARATOR)
-#if defined(CONFIG_IOAPIC)
-	ioapic_mkstub dw_aio_cmp dw_aio_cmp_isr dw_aio_cmp_device
-#endif
-#endif /* CONFIG_AIO_DW_COMPARATOR */

drivers/bluetooth/Makefile

@@ -1,2 +1,2 @@
-obj-$(CONFIG_BLUETOOTH_H4) += h4.o uart_static_irq_stubs.o
+obj-$(CONFIG_BLUETOOTH_H4) += h4.o
-obj-$(CONFIG_BLUETOOTH_H5) += h5.o uart_static_irq_stubs.o
+obj-$(CONFIG_BLUETOOTH_H5) += h5.o

drivers/bluetooth/h4.c

@@ -218,17 +218,14 @@ static int h4_send(enum bt_buf_type buf_type, struct net_buf *buf)
 	return 0;
 }
 
-IRQ_CONNECT_STATIC(bluetooth, CONFIG_BLUETOOTH_UART_IRQ,
-		   CONFIG_BLUETOOTH_UART_IRQ_PRI, bt_uart_isr, 0,
-		   UART_IRQ_FLAGS);
-
 static int h4_open(void)
 {
 	BT_DBG("");
 
 	uart_irq_rx_disable(h4_dev);
 	uart_irq_tx_disable(h4_dev);
-	IRQ_CONFIG(bluetooth, CONFIG_BLUETOOTH_UART_IRQ);
+	irq_connect(CONFIG_BLUETOOTH_UART_IRQ, CONFIG_BLUETOOTH_UART_IRQ_PRI,
+		    bt_uart_isr, 0, UART_IRQ_FLAGS);
 	irq_enable(CONFIG_BLUETOOTH_UART_IRQ);
 
 	/* Drain the fifo */

drivers/bluetooth/h5.c

@@ -768,17 +768,15 @@ static void h5_init(void)
 	nano_fifo_init(&h5.unack_queue);
 }
 
-IRQ_CONNECT_STATIC(bluetooth, CONFIG_BLUETOOTH_UART_IRQ,
-		   CONFIG_BLUETOOTH_UART_IRQ_PRI, bt_uart_isr, 0,
-		   UART_IRQ_FLAGS);
-
 static int h5_open(void)
 {
 	BT_DBG("");
 
 	uart_irq_rx_disable(h5_dev);
 	uart_irq_tx_disable(h5_dev);
-	IRQ_CONFIG(bluetooth, CONFIG_BLUETOOTH_UART_IRQ);
+
+	irq_connect(CONFIG_BLUETOOTH_UART_IRQ, CONFIG_BLUETOOTH_UART_IRQ_PRI,
+		    bt_uart_isr, 0, UART_IRQ_FLAGS);
 	irq_enable(CONFIG_BLUETOOTH_UART_IRQ);
 
 	/* Drain the fifo */

drivers/bluetooth/uart_static_irq_stubs.S

@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief Bluetooth UART interrupt stubs
- */
-
-#ifdef CONFIG_X86
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#include <drivers/loapic.h>
-
-#if defined(CONFIG_BLUETOOTH_UART)
-#if defined(CONFIG_IOAPIC)
-	ioapic_mkstub bluetooth bt_uart_isr 0
-#endif /* CONFIG_IOAPIC */
-#endif /* CONFIG_BLUETOOTH_UART */
-
-#undef _ASMLANGUAGE
-
-#endif /* CONFIG_X86 */

drivers/console/Makefile

@@ -1,6 +1,6 @@
 obj-$(CONFIG_CONSOLE_HANDLER_SHELL) += console_handler_shell.o
-obj-$(CONFIG_UART_CONSOLE) += uart_console.o uart_console_static_irq_stubs.o
+obj-$(CONFIG_UART_CONSOLE) += uart_console.o
 obj-$(CONFIG_RAM_CONSOLE) += ram_console.o
 obj-$(CONFIG_IPM_CONSOLE_RECEIVER) += ipm_console_receiver.o
 obj-$(CONFIG_IPM_CONSOLE_SENDER) += ipm_console_sender.o
-obj-$(CONFIG_UART_PIPE) += uart_pipe.o uart_console_static_irq_stubs.o
+obj-$(CONFIG_UART_PIPE) += uart_pipe.o

drivers/console/uart_console.c

@@ -366,17 +366,14 @@ void uart_console_isr(void *unused)
 	}
 }
 
-IRQ_CONNECT_STATIC(console, CONFIG_UART_CONSOLE_IRQ,
-		   CONFIG_UART_CONSOLE_IRQ_PRI, uart_console_isr, 0,
-		   UART_IRQ_FLAGS);
-
 static void console_input_init(void)
 {
 	uint8_t c;
 
 	uart_irq_rx_disable(uart_console_dev);
 	uart_irq_tx_disable(uart_console_dev);
-	IRQ_CONFIG(console, CONFIG_UART_CONSOLE_IRQ);
+	irq_connect(CONFIG_UART_CONSOLE_IRQ, CONFIG_UART_CONSOLE_IRQ_PRI,
+		    uart_console_isr, 0, UART_IRQ_FLAGS);
 	irq_enable(CONFIG_UART_CONSOLE_IRQ);
 
 	/* Drain the fifo */

drivers/console/uart_console_static_irq_stubs.S

@@ -1,44 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief UART console interrupt stubs
- */
-
-#ifdef CONFIG_X86
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#include <drivers/loapic.h>
-
-#if defined(CONFIG_CONSOLE_HANDLER)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub console uart_console_isr 0
-#endif /* CONFIG_IOAPIC */
-#endif /* CONFIG_CONSOLE_HANDLER */
-
-#if defined(CONFIG_UART_PIPE)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub uart_pipe uart_pipe_isr 0
-#endif /* CONFIG_IOAPIC */
-#endif /* CONFIG_UART_PIPE */
-
-#undef _ASMLANGUAGE
-
-#endif /* CONFIG_X86 */

drivers/console/uart_pipe.c

@@ -72,15 +72,13 @@ int uart_pipe_send(const uint8_t *data, int len)
 	}
 }
 
-IRQ_CONNECT_STATIC(uart_pipe, CONFIG_UART_PIPE_IRQ,
-		   CONFIG_UART_PIPE_IRQ_PRI, uart_pipe_isr, 0,
-		   UART_IRQ_FLAGS);
-
 static void uart_pipe_setup(struct device *uart)
 {
 	uart_irq_rx_disable(uart);
 	uart_irq_tx_disable(uart);
-	IRQ_CONFIG(uart_pipe, CONFIG_UART_PIPE_IRQ);
+
+	irq_connect(CONFIG_UART_PIPE_IRQ, CONFIG_UART_PIPE_IRQ_PRI,
+		    uart_pipe_isr, 0, UART_IRQ_FLAGS);
 	irq_enable(CONFIG_UART_PIPE_IRQ);
 
 	/* Drain the fifo */

drivers/ethernet/Makefile

@@ -3,4 +3,4 @@ ccflags-y += -I${srctree}/net/ip/contiki/os/lib
 ccflags-y += -I${srctree}/net/ip/contiki/os
 ccflags-y += -I${srctree}
 
-obj-$(CONFIG_ETH_DW) += eth_dw.o eth_static_irq_stubs.o
+obj-$(CONFIG_ETH_DW) += eth_dw.o

drivers/ethernet/eth_dw.c

@@ -313,11 +313,6 @@ static int eth_net_tx(struct net_buf *buf)
 	return eth_tx(&__initconfig_eth_dw_0, buf);
 }
 
-#ifdef CONFIG_ETH_DW_0_IRQ_DIRECT
-IRQ_CONNECT_STATIC(eth_dw_0, CONFIG_ETH_DW_0_IRQ,
-		   CONFIG_ETH_DW_0_PRI, eth_dw_isr, 0);
-#endif
-
 static void eth_config_0_irq(struct device *port)
 {
 	struct eth_config *config = port->config->config_info;
@@ -325,8 +320,9 @@ static void eth_config_0_irq(struct device *port)
 
 #ifdef CONFIG_ETH_DW_0_IRQ_DIRECT
 	ARG_UNUSED(shared_irq_dev);
-	IRQ_CONFIG(eth_dw_0, config->irq_num);
+	irq_connect(CONFIG_ETH_DW_0_IRQ, CONFIG_ETH_DW_0_PRI, eth_dw_isr,
-	irq_enable(config->irq_num);
+		    SYS_GET_DEVICE(eth_dw_0), 0);
+	irq_enable(CONFIG_ETH_DW_0_IRQ);
 #elif defined(CONFIG_ETH_DW_0_IRQ_SHARED)
 	shared_irq_dev = device_get_binding(config->shared_irq_dev_name);
 	__ASSERT(shared_irq_dev != NULL, "Failed to get eth_dw device binding");
@@ -334,9 +330,4 @@ static void eth_config_0_irq(struct device *port)
 	shared_irq_enable(shared_irq_dev, port);
 #endif
 }
-
-#ifdef CONFIG_ETH_DW_0_IRQ_DIRECT
-struct device *eth_dw_isr_0 = SYS_GET_DEVICE(eth_dw_0);
-#endif  /* CONFIG_ETH_DW_0_IRQ_DIRECT */
-
 #endif  /* CONFIG_ETH_DW_0 */

drivers/ethernet/eth_static_irq_stubs.S

@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief Ethernet interrupt stubs
- * This module contains the static interrupt stubs for Ethernet drivers.
- */
-
-#define _ASMLANGUAGE
-
-#ifdef CONFIG_X86
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#endif
-
-#if defined(CONFIG_ETH_DW)
-#if CONFIG_ETH_DW_0
-	ioapic_mkstub eth_dw_0 eth_dw_isr eth_dw_isr_0
-#endif /* CONFIG_ETH_DW_0 */
-#endif /* CONFIG_ETH_DW */

drivers/gpio/Makefile

@@ -1,6 +1,5 @@
 ccflags-y +=-I$(srctree)/drivers
 
-obj-$(CONFIG_GPIO) += gpio_static_irq_stubs.o
 obj-$(CONFIG_GPIO_DW) += gpio_dw.o
 obj-$(CONFIG_GPIO_PCAL9535A) += gpio_pcal9535a.o
 obj-$(CONFIG_GPIO_MMIO) += gpio_mmio.o

drivers/gpio/gpio_dw.c

@@ -454,14 +454,12 @@ struct gpio_dw_config gpio_config_0 = {
 
 struct gpio_dw_runtime gpio_0_runtime;
 
-DECLARE_DEVICE_INIT_CONFIG(gpio_0, CONFIG_GPIO_DW_0_NAME,
+DECLARE_DEVICE_INIT_CONFIG(gpio_dw_0, CONFIG_GPIO_DW_0_NAME,
 			   gpio_dw_initialize, &gpio_config_0);
-SYS_DEFINE_DEVICE(gpio_0, &gpio_0_runtime, SECONDARY,
+SYS_DEFINE_DEVICE(gpio_dw_0, &gpio_0_runtime, SECONDARY,
 		  CONFIG_GPIO_DW_INIT_PRIORITY);
 
 #ifdef CONFIG_GPIO_DW_0_IRQ_DIRECT
-struct device *gpio_dw_isr_0 = SYS_GET_DEVICE(gpio_0);
-
 #ifdef CONFIG_IOAPIC
 #ifdef CONFIG_GPIO_DW_0
 	#if defined(CONFIG_GPIO_DW_0_FALLING_EDGE)
@@ -477,11 +475,6 @@ struct device *gpio_dw_isr_0 = SYS_GET_DEVICE(gpio_0);
 #else
 	#define GPIO_DW_0_IRQ_FLAGS 0
 #endif
-
-IRQ_CONNECT_STATIC(gpio_dw_0, CONFIG_GPIO_DW_0_IRQ,
-		   CONFIG_GPIO_DW_0_PRI, gpio_dw_isr,
-		   SYS_GET_DEVICE(gpio_0),
-		   GPIO_DW_0_IRQ_FLAGS);
 #endif
 
 void gpio_config_0_irq(struct device *port)
@@ -491,7 +484,8 @@ void gpio_config_0_irq(struct device *port)
 
 #ifdef CONFIG_GPIO_DW_0_IRQ_DIRECT
 	ARG_UNUSED(shared_irq_dev);
-	IRQ_CONFIG(gpio_dw_0, config->irq_num);
+	irq_connect(CONFIG_GPIO_DW_0_IRQ, CONFIG_GPIO_DW_0_PRI, gpio_dw_isr,
+		    SYS_GET_DEVICE(gpio_dw_0), GPIO_DW_0_IRQ_FLAGS);
 	irq_enable(config->irq_num);
 #elif defined(CONFIG_GPIO_DW_0_IRQ_SHARED)
 	shared_irq_dev = device_get_binding(config->shared_irq_dev_name);
@@ -534,15 +528,13 @@ struct gpio_dw_config gpio_dw_config_1 = {
 
 struct gpio_dw_runtime gpio_1_runtime;
 
-DECLARE_DEVICE_INIT_CONFIG(gpio_1, CONFIG_GPIO_DW_1_NAME,
+DECLARE_DEVICE_INIT_CONFIG(gpio_dw_1, CONFIG_GPIO_DW_1_NAME,
 			   gpio_dw_initialize, &gpio_dw_config_1);
 
-SYS_DEFINE_DEVICE(gpio_1, &gpio_1_runtime, SECONDARY,
+SYS_DEFINE_DEVICE(gpio_dw_1, &gpio_1_runtime, SECONDARY,
 		  CONFIG_GPIO_DW_INIT_PRIORITY);
 
 #ifdef CONFIG_GPIO_DW_1_IRQ_DIRECT
-struct device *gpio_dw_isr_1 = SYS_GET_DEVICE(gpio_1);
-
 #ifdef CONFIG_IOAPIC
 #ifdef CONFIG_GPIO_DW_1
 	#if defined(CONFIG_GPIO_DW_1_FALLING_EDGE)
@@ -558,11 +550,6 @@ struct device *gpio_dw_isr_1 = SYS_GET_DEVICE(gpio_1);
 #else
 	#define GPIO_DW_1_IRQ_FLAGS 0
 #endif
-
-IRQ_CONNECT_STATIC(gpio_dw_1, CONFIG_GPIO_DW_1_IRQ,
-		   CONFIG_GPIO_DW_1_PRI, gpio_dw_isr,
-		   SYS_GET_DEVICE(gpio_1),
-		   GPIO_DW_1_IRQ_FLAGS);
 #endif
 
 void gpio_config_1_irq(struct device *port)
@@ -572,7 +559,8 @@ void gpio_config_1_irq(struct device *port)
 
 #ifdef CONFIG_GPIO_DW_1_IRQ_DIRECT
 	ARG_UNUSED(shared_irq_dev);
-	IRQ_CONFIG(gpio_dw_1, config->irq_num);
+	irq_connect(CONFIG_GPIO_DW_1_IRQ, CONFIG_GPIO_DW_1_PRI, gpio_dw_isr,
+		    SYS_GET_DEVICE(gpio_dw_1), GPIO_DW_1_IRQ_FLAGS);
 	irq_enable(config->irq_num);
 #elif defined(CONFIG_GPIO_DW_1_IRQ_SHARED)
 	shared_irq_dev = device_get_binding(config->shared_irq_dev_name);

drivers/gpio/gpio_static_irq_stubs.S

@@ -1,41 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief GPIO interrupt stubs
- * This module contains the static interrupt stubs for the gpio drivers
- */
-
-#define _ASMLANGUAGE
-
-#ifdef CONFIG_X86
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#endif
-
-
-#ifdef CONFIG_GPIO_DW_0
-#ifdef CONFIG_IOAPIC
-	ioapic_mkstub gpio_dw_0 gpio_dw_isr gpio_dw_isr_0
-#endif
-#endif /* CONFIG_GPIO_DW_0 */
-
-#ifdef CONFIG_GPIO_DW_1
-#ifdef CONFIG_IOAPIC
-	ioapic_mkstub gpio_dw_1 gpio_dw_isr gpio_dw_isr_1
-#endif
-#endif /* CONFIG_GPIO_DW_1 */

drivers/i2c/Makefile

@@ -1,2 +1,2 @@
-obj-$(CONFIG_I2C_DW) += i2c_dw.o i2c_static_irq_stubs.o
+obj-$(CONFIG_I2C_DW) += i2c_dw.o
 obj-$(CONFIG_I2C_QUARK_SE_SS) += i2c_quark_se_ss.o

drivers/i2c/i2c_dw.c

@@ -779,16 +779,6 @@ DECLARE_DEVICE_INIT_CONFIG(i2c_0,
 			   &i2c_config_dw_0);
 
 SYS_DEFINE_DEVICE(i2c_0, &i2c_0_runtime, SECONDARY, CONFIG_I2C_INIT_PRIORITY);
-struct device *i2c_dw_isr_0_device = SYS_GET_DEVICE(i2c_0);
-
-#ifdef CONFIG_I2C_DW_0_IRQ_DIRECT
-IRQ_CONNECT_STATIC(i2c_dw_0,
-		   CONFIG_I2C_DW_0_IRQ,
-		   CONFIG_I2C_DW_0_INT_PRIORITY,
-		   i2c_dw_isr,
-		   SYS_GET_DEVICE(i2c_0),
-		   I2C_DW_IRQ_FLAGS);
-#endif
 
 void i2c_config_0(struct device *port)
 {
@@ -797,7 +787,8 @@ void i2c_config_0(struct device *port)
 
 #if defined(CONFIG_I2C_DW_0_IRQ_DIRECT)
 	ARG_UNUSED(shared_irq_dev);
-	IRQ_CONFIG(i2c_dw_0, config->irq_num);
+	irq_connect(CONFIG_I2C_DW_0_IRQ, CONFIG_I2C_DW_0_INT_PRIORITY,
+		    i2c_dw_isr, SYS_GET_DEVICE(i2c_0), I2C_DW_IRQ_FLAGS);
 	irq_enable(config->irq_num);
 #elif defined(CONFIG_I2C_DW_0_IRQ_SHARED)
 	ARG_UNUSED(config);
@@ -842,14 +833,6 @@ DECLARE_DEVICE_INIT_CONFIG(i2c_1,
 
 SYS_DEFINE_DEVICE(i2c_1, &i2c_1_runtime, SECONDARY,
 					CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
-struct device *i2c_dw_isr_1_device = SYS_GET_DEVICE(i2c_1);
-
-IRQ_CONNECT_STATIC(i2c_dw_1,
-		   CONFIG_I2C_DW_1_IRQ,
-		   CONFIG_I2C_DW_1_INT_PRIORITY,
-		   i2c_dw_isr,
-		   SYS_GET_DEVICE(i2c_1),
-		   I2C_DW_IRQ_FLAGS);
 
 void i2c_config_1(struct device *port)
 {
@@ -857,7 +840,8 @@ void i2c_config_1(struct device *port)
 	struct device *shared_irq_dev;
 
 	ARG_UNUSED(shared_irq_dev);
-	IRQ_CONFIG(i2c_dw_1, config->irq_num);
+	irq_connect(CONFIG_I2C_DW_1_IRQ, CONFIG_I2C_DW_1_INT_PRIORITY,
+		    i2c_dw_isr, SYS_GET_DEVICE(i2c_1), I2C_DW_IRQ_FLAGS);
 	irq_enable(config->irq_num);
 }
 

drivers/i2c/i2c_quark_se_ss.c

@@ -668,10 +668,10 @@ void _i2c_qse_ss_config_irq(struct device *port)
 	_i2c_qse_ss_memory_write(SCSS_REGISTER_BASE, rom->isr_stop_mask, mask);
 
 	/* Connect the IRQs to ISR */
-	irq_connect(rom->isr_err_vector, 1, i2c_qse_ss_isr, port, 0);
+	irq_connect_dynamic(rom->isr_err_vector, 1, i2c_qse_ss_isr, port, 0);
-	irq_connect(rom->isr_rx_vector, 1, i2c_qse_ss_isr, port, 0);
+	irq_connect_dynamic(rom->isr_rx_vector, 1, i2c_qse_ss_isr, port, 0);
-	irq_connect(rom->isr_tx_vector, 1, i2c_qse_ss_isr, port, 0);
+	irq_connect_dynamic(rom->isr_tx_vector, 1, i2c_qse_ss_isr, port, 0);
-	irq_connect(rom->isr_stop_vector, 1, i2c_qse_ss_isr, port, 0);
+	irq_connect_dynamic(rom->isr_stop_vector, 1, i2c_qse_ss_isr, port, 0);
 
 	irq_enable(rom->isr_err_vector);
 	irq_enable(rom->isr_rx_vector);

drivers/i2c/i2c_static_irq_stubs.S

@@ -1,42 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file
- * @brief I2C interrupt stubs
- * This module contains the static interrupt stubs for the i2c drivers
- */
-
-#define _ASMLANGUAGE
-
-#ifdef CONFIG_X86
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#endif
-
-#if defined(CONFIG_I2C_DW_0)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-    ioapic_mkstub i2c_dw_0 i2c_dw_isr i2c_dw_isr_0_device
-#endif
-#endif /* CONFIG_I2C_DW_0 */
-
-#if defined(CONFIG_I2C_DW_1)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-    ioapic_mkstub i2c_dw_1 i2c_dw_isr i2c_dw_isr_1_device
-#endif
-#endif /* CONFIG_I2C_DW_1 */
-
-

drivers/interrupt_controller/ioapic_intr.c

@@ -113,7 +113,7 @@ int _ioapic_init(struct device *unused)
 
 	/*
 	 * Initialize the redirection table entries with default settings;
-	 * actual interrupt vectors are specified during irq_connect().
+	 * actual interrupt vectors are specified during irq_connect_dynamic().
 	 *
 	 * A future enhancement should make this initialization "table driven":
 	 * use data provided by the platform to specify the initial state

drivers/interrupt_controller/loapic_intr.c

@@ -302,7 +302,7 @@ void _loapic_disable(void)
  * @brief Set the vector field in the specified RTE
  *
  * This routine is utilized by the interrupt controller's _SysIntVecAlloc()
- * routine (which exists to support the irq_connect() API).  Once
+ * routine (which exists to support the irq_connect_dynamic() API).  Once
  * a vector has been allocated, this routine is invoked to update the LVT
  * entry associated with <irq> with the vector.
  *

drivers/interrupt_controller/system_apic.c

@@ -61,8 +61,8 @@ static int __LocalIntVecAlloc(unsigned int irq, unsigned int priority);
  *
  * @brief Allocate interrupt vector
  *
- * This routine is used by the x86's irq_connect().  It performs the following
+ * This routine is used by the x86's irq_connect_dynamic().  It performs the
- * functions:
+ * following functions:
  *
  *  a) Allocates a vector satisfying the requested priority.  The utility
  *     routine _IntVecAlloc() provided by the nanokernel will be used to

drivers/ipm/Makefile

@@ -1,4 +1,4 @@
 ccflags-y += -I$(srctree/drivers)
 
-obj-$(CONFIG_IPM_QUARK_SE) += ipm_quark_se.o ipm_static_irq_stubs.o
+obj-$(CONFIG_IPM_QUARK_SE) += ipm_quark_se.o
 

drivers/ipm/ipm_static_irq_stubs.S

@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corporation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define _ASMLANGUAGE
-
-#ifdef CONFIG_X86
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#endif
-
-#if defined(CONFIG_IPM_QUARK_SE)
-#if defined(CONFIG_IOAPIC)
-        ioapic_mkstub quark_se_ipm quark_se_ipm_isr 0
-#endif
-#endif

drivers/rtc/Makefile

@@ -1,5 +1,4 @@
 ccflags-$(CONFIG_RTC_QMSI) += -I$(CONFIG_QMSI_INSTALL_PATH)/include
 
-obj-$(CONFIG_RTC) += rtc_static_irq_stubs.o
 obj-$(CONFIG_RTC_DW) += rtc_dw.o
 obj-$(CONFIG_RTC_QMSI) += rtc_qmsi.o

drivers/rtc/rtc_dw.c

@@ -189,23 +189,7 @@ static struct rtc_driver_api funcs = {
 	.set_alarm = rtc_dw_set_alarm,
 };
 
-/* IRQ_CONFIG needs the flags variable declared by IRQ_CONNECT_STATIC */
+int rtc_dw_init(struct device *dev);
-IRQ_CONNECT_STATIC(rtc, CONFIG_RTC_IRQ,
-		   CONFIG_RTC_IRQ_PRI, rtc_dw_isr, 0, 0);
-
-int rtc_dw_init(struct device *dev)
-{
-	IRQ_CONFIG(rtc, CONFIG_RTC_IRQ);
-	irq_enable(CONFIG_RTC_IRQ);
-
-	_rtc_dw_int_unmask();
-
-	_rtc_dw_clock_config(dev);
-
-	dev->driver_api = &funcs;
-
-	return DEV_OK;
-}
 
 struct rtc_dw_runtime rtc_runtime;
 
@@ -222,4 +206,18 @@ DECLARE_DEVICE_INIT_CONFIG(rtc, CONFIG_RTC_DRV_NAME,
 SYS_DEFINE_DEVICE(rtc, &rtc_runtime, SECONDARY,
 		  CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
 
-struct device *rtc_dw_isr_dev = SYS_GET_DEVICE(rtc);
+int rtc_dw_init(struct device *dev)
+{
+	irq_connect(CONFIG_RTC_IRQ, CONFIG_RTC_IRQ_PRI, rtc_dw_isr,
+		    SYS_GET_DEVICE(rtc), 0);
+	irq_enable(CONFIG_RTC_IRQ);
+
+	_rtc_dw_int_unmask();
+
+	_rtc_dw_clock_config(dev);
+
+	dev->driver_api = &funcs;
+
+	return DEV_OK;
+}
+

drivers/rtc/rtc_qmsi.c

@@ -22,9 +22,6 @@
 
 #include "qm_rtc.h"
 
-IRQ_CONNECT_STATIC(rtc, CONFIG_RTC_IRQ, CONFIG_RTC_IRQ_PRI, qm_rtc_isr_0,
-		   0, IOAPIC_EDGE | IOAPIC_HIGH);
-
 static struct device *rtc_qmsi_dev;
 
 static void (*user_callback)(struct device *dev);
@@ -82,7 +79,8 @@ static struct rtc_driver_api api = {
 
 static int rtc_qmsi_init(struct device *dev)
 {
-	IRQ_CONFIG(rtc, CONFIG_RTC_IRQ);
+	irq_connect(CONFIG_RTC_IRQ, CONFIG_RTC_IRQ_PRI, qm_rtc_isr_0, 0,
+		    IOAPIC_EDGE | IOAPIC_HIGH);
 
 	/* Unmask RTC interrupt */
 	irq_enable(CONFIG_RTC_IRQ);

drivers/rtc/rtc_static_irq_stubs.S

@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corportation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-
-#if defined(CONFIG_RTC_DW)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub rtc rtc_dw_isr rtc_dw_isr_dev
-#endif
-#endif
-
-#if defined(CONFIG_RTC_QMSI)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub rtc qm_rtc_isr_0 0
-#endif
-#endif /* CONFIG_RTC_QMSI */
-
-/* externs (internal APIs) */
-
-GTEXT(_IntEnt)
-GTEXT(_IntExit)

drivers/shared_irq/Makefile

@@ -1,4 +1,3 @@
 ccflags-y +=-I$(srctree)/drivers
 
-obj-$(CONFIG_SHARED_IRQ) = shared_irq_static_irq_stubs.o
 obj-$(CONFIG_SHARED_IRQ) += shared_irq.o

drivers/shared_irq/shared_irq.c

@@ -128,13 +128,13 @@ int shared_irq_initialize(struct device *dev)
 	struct shared_irq_config *config = dev->config->config_info;
 
 	dev->driver_api = &api_funcs;
-	config->config(dev);
+	config->config();
 
 	return 0;
 }
 
 #if CONFIG_SHARED_IRQ_0
-void shared_irq_config_0_irq(struct device *port);
+void shared_irq_config_0_irq(void);
 
 struct shared_irq_config shared_irq_config_0 = {
 	.irq_num = CONFIG_SHARED_IRQ_0_IRQ,
@@ -165,26 +165,17 @@ SYS_DEFINE_DEVICE(shared_irq_0, &shared_irq_0_runtime, SECONDARY,
 	#define SHARED_IRQ_0_FLAGS 0
 #endif /* CONFIG_IOAPIC */
 
-IRQ_CONNECT_STATIC(shared_irq_0, CONFIG_SHARED_IRQ_0_IRQ,
+void shared_irq_config_0_irq(void)
-		   CONFIG_SHARED_IRQ_0_PRI, shared_irq_isr_0, 0,
-		   SHARED_IRQ_0_FLAGS);
-
-void shared_irq_config_0_irq(struct device *port)
 {
-	struct shared_irq_config *config = port->config->config_info;
+	irq_connect(CONFIG_SHARED_IRQ_0_IRQ, CONFIG_SHARED_IRQ_0_PRI,
-
+		    shared_irq_isr, SYS_GET_DEVICE(shared_irq_0),
-	IRQ_CONFIG(shared_irq_0, config->irq_num);
+		    SHARED_IRQ_0_FLAGS);
-}
-
-void shared_irq_isr_0(void *unused)
-{
-	shared_irq_isr(&__initconfig_shared_irq_0);
 }
 
 #endif /* CONFIG_SHARED_IRQ_0 */
 
 #if CONFIG_SHARED_IRQ_1
-void shared_irq_config_1_irq(struct device *port);
+void shared_irq_config_1_irq(void);
 
 struct shared_irq_config shared_irq_config_1 = {
 	.irq_num = CONFIG_SHARED_IRQ_1_IRQ,
@@ -215,20 +206,11 @@ SYS_DEFINE_DEVICE(shared_irq_1, &shared_irq_1_runtime, SECONDARY,
 	#define SHARED_IRQ_1_FLAGS 0
 #endif /* CONFIG_IOAPIC */
 
-IRQ_CONNECT_STATIC(shared_irq_1, CONFIG_SHARED_IRQ_1_IRQ,
+void shared_irq_config_1_irq(void)
-		   CONFIG_SHARED_IRQ_1_PRI, shared_irq_isr_1, 0,
-		   SHARED_IRQ_1_FLAGS);
-
-void shared_irq_config_1_irq(struct device *port)
 {
-	struct shared_irq_config *config = port->config->config_info;
+	irq_connect(CONFIG_SHARED_IRQ_1_IRQ, CONFIG_SHARED_IRQ_1_PRI,
-
+		    shared_irq_isr, SYS_GET_DEVICE(shared_irq_1),
-	IRQ_CONFIG(shared_irq_1, config->irq_num);
+		    SHARED_IRQ_1_FLAGS);
-}
-
-void shared_irq_isr_1(void *unused)
-{
-	shared_irq_isr(&__initconfig_shared_irq_1);
 }
 
 #endif /* CONFIG_SHARED_IRQ_1 */

drivers/shared_irq/shared_irq_static_irq_stubs.S

@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2012-2015, Wind River Systems, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-
-
-#if CONFIG_SHARED_IRQ_0
-	ioapic_mkstub shared_irq_0 shared_irq_isr_0 0
-#endif /* CONFIG_SHARED_IRQ_0 */
-
-#if CONFIG_SHARED_IRQ_1
-	ioapic_mkstub shared_irq_1 shared_irq_isr_1 0
-#endif /* CONFIG_SHARED_IRQ_1 */

drivers/spi/Makefile

@@ -1,4 +1,2 @@
-
-obj-$(CONFIG_SPI) = spi_static_irq_stubs.o
 obj-$(CONFIG_SPI_INTEL) += intel_spi.o
 obj-$(CONFIG_SPI_DW) += dw_spi.o

drivers/spi/dw_spi.c

@@ -459,8 +459,13 @@ int spi_dw_init(struct device *dev)
 #endif /* CONFIG_IOAPIC */
 
 #ifdef CONFIG_SPI_DW_PORT_0
-
+void spi_config_0_irq(void)
-void spi_config_0_irq(struct device *dev);
+{
+	irq_connect(CONFIG_SPI_DW_PORT_0_IRQ, CONFIG_SPI_DW_PORT_0_PRI,
+		    spi_dw_isr, SYS_GET_DEVICE(spi_dw_port_0),
+		    SPI_DW_IRQ_FLAGS);
+	irq_enable(CONFIG_SPI_DW_PORT_0_IRQ);
+}
 
 struct spi_dw_data spi_dw_data_port_0;
 
@@ -479,24 +484,16 @@ DECLARE_DEVICE_INIT_CONFIG(spi_dw_port_0, CONFIG_SPI_DW_PORT_0_DRV_NAME,
 
 SYS_DEFINE_DEVICE(spi_dw_port_0, &spi_dw_data_port_0, SECONDARY,
 					CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
-struct device *spi_dw_isr_port_0 = SYS_GET_DEVICE(spi_dw_port_0);
-
-IRQ_CONNECT_STATIC(spi_dw_irq_port_0, CONFIG_SPI_DW_PORT_0_IRQ,
-		   CONFIG_SPI_DW_PORT_0_PRI, spi_dw_isr, 0,
-		   SPI_DW_IRQ_FLAGS);
-
-void spi_config_0_irq(struct device *dev)
-{
-	struct spi_dw_config *config = dev->config->config_info;
-
-	IRQ_CONFIG(spi_dw_irq_port_0, config->irq);
-	irq_enable(config->irq);
-}
-
 #endif /* CONFIG_SPI_DW_PORT_0 */
 #ifdef CONFIG_SPI_DW_PORT_1
 
-void spi_config_1_irq(struct device *dev);
+void spi_config_1_irq(void)
+{
+	irq_connect(CONFIG_SPI_DW_PORT_1_IRQ, CONFIG_SPI_DW_PORT_1_PRI,
+		    spi_dw_isr, SYS_GET_DEVICE(spi_dw_port_1),
+		    SPI_DW_IRQ_FLAGS);
+	irq_enable(CONFIG_SPI_DW_PORT_1_IRQ);
+}
 
 struct spi_dw_data spi_dw_data_port_1;
 
@@ -515,18 +512,4 @@ DECLARE_DEVICE_INIT_CONFIG(spi_dw_port_1, CONFIG_SPI_DW_PORT_1_DRV_NAME,
 
 SYS_DEFINE_DEVICE(spi_dw_port_1, &spi_dw_data_port_1, SECONDARY,
 					CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
-struct device *spi_dw_isr_port_1 = SYS_GET_DEVICE(spi_dw_port_1);
-
-IRQ_CONNECT_STATIC(spi_dw_irq_port_1, CONFIG_SPI_DW_PORT_1_IRQ,
-		   CONFIG_SPI_DW_PORT_1_PRI, spi_dw_isr, 0,
-		   SPI_DW_IRQ_FLAGS);
-
-void spi_config_1_irq(struct device *dev)
-{
-	struct spi_dw_config *config = dev->config->config_info;
-
-	IRQ_CONFIG(spi_dw_irq_port_1, config->irq);
-	irq_enable(config->irq);
-}
-
 #endif /* CONFIG_SPI_DW_PORT_1 */

drivers/spi/dw_spi_priv.h

@@ -21,7 +21,7 @@
 
 #include <spi.h>
 
-typedef void (*spi_dw_config_t)(struct device *dev);
+typedef void (*spi_dw_config_t)(void);
 
 /* Private structures */
 struct spi_dw_config {

drivers/spi/intel_spi.c

@@ -420,7 +420,7 @@ int spi_intel_init(struct device *dev)
 		return DEV_NOT_CONFIG;
 	}
 
-	info->config_func(dev);
+	info->config_func();
 
 	_spi_config_cs(dev);
 
@@ -448,7 +448,7 @@ int spi_intel_init(struct device *dev)
 /* system bindings */
 #ifdef CONFIG_SPI_INTEL_PORT_0
 
-void spi_config_0_irq(struct device *dev);
+void spi_config_0_irq(void);
 
 struct spi_intel_data spi_intel_data_port_0;
 
@@ -476,23 +476,18 @@ DECLARE_DEVICE_INIT_CONFIG(spi_intel_port_0, CONFIG_SPI_INTEL_PORT_0_DRV_NAME,
 /* SPI may use GPIO pin for CS, thus it needs to be initialized after GPIO */
 SYS_DEFINE_DEVICE(spi_intel_port_0, &spi_intel_data_port_0, SECONDARY,
 		  CONFIG_SPI_INTEL_INIT_PRIORITY);
-struct device *spi_intel_isr_port_0 = SYS_GET_DEVICE(spi_intel_port_0);
 
-IRQ_CONNECT_STATIC(spi_intel_irq_port_0, CONFIG_SPI_INTEL_PORT_0_IRQ,
+void spi_config_0_irq(void)
-		   CONFIG_SPI_INTEL_PORT_0_PRI, spi_intel_isr, 0,
-		   SPI_INTEL_IRQ_FLAGS);
-
-void spi_config_0_irq(struct device *dev)
 {
-	struct spi_intel_config *config = dev->config->config_info;
+	irq_connect(CONFIG_SPI_INTEL_PORT_0_IRQ, CONFIG_SPI_INTEL_PORT_0_PRI,
-
+		    spi_intel_isr, SYS_GET_DEVICE(spi_intel_port_0),
-	IRQ_CONFIG(spi_intel_irq_port_0, config->irq);
+		    SPI_INTEL_IRQ_FLAGS);
 }
 
 #endif /* CONFIG_SPI_INTEL_PORT_0 */
 #ifdef CONFIG_SPI_INTEL_PORT_1
 
-void spi_config_1_irq(struct device *dev);
+void spi_config_1_irq(void);
 
 struct spi_intel_data spi_intel_data_port_1;
 
@@ -520,17 +515,12 @@ DECLARE_DEVICE_INIT_CONFIG(spi_intel_port_1, CONFIG_SPI_INTEL_PORT_1_DRV_NAME,
 /* SPI may use GPIO pin for CS, thus it needs to be initialized after GPIO */
 SYS_DEFINE_DEVICE(spi_intel_port_1, &spi_intel_data_port_1, SECONDARY,
 		  CONFIG_SPI_INTEL_INIT_PRIORITY);
-struct device *spi_intel_isr_port_1 = SYS_GET_DEVICE(spi_intel_port_1);
 
-IRQ_CONNECT_STATIC(spi_intel_irq_port_1, CONFIG_SPI_INTEL_PORT_1_IRQ,
+void spi_config_1_irq(void);
-		   CONFIG_SPI_INTEL_PORT_1_PRI, spi_intel_isr, 0,
-		   SPI_INTEL_IRQ_FLAGS);
-
-void spi_config_1_irq(struct device *dev)
 {
-	struct spi_intel_config *config = dev->config->config_info;
+	irq_connect(CONFIG_SPI_INTEL_PORT_1_IRQ, CONFIG_SPI_INTEL_PORT_1_PRI,
-
+		    spi_intel_isr, SYS_GET_DEVICE(spi_intel_port_1),
-	IRQ_CONFIG(spi_intel_irq_port_1, config->irq);
+		    SPI_INTEL_IRQ_FLAGS);
 }
 
 #endif /* CONFIG_SPI_INTEL_PORT_1 */

drivers/spi/intel_spi_priv.h

@@ -24,7 +24,7 @@
 #include <pci/pci_mgr.h>
 #endif /* CONFIG_PCI */
 
-typedef void (*spi_intel_config_t)(struct device *dev);
+typedef void (*spi_intel_config_t)(void);
 
 struct spi_intel_config {
 	uint32_t regs;

drivers/spi/spi_static_irq_stubs.S

@@ -1,40 +0,0 @@
-/*
- * Copyright (c) 2012-2015, Wind River Systems, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#define _ASMLANGUAGE
-
-#ifdef CONFIG_X86
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-#endif
-
-#if defined(CONFIG_SPI_INTEL_PORT_0)
-	ioapic_mkstub spi_intel_irq_port_0 spi_intel_isr spi_intel_isr_port_0
-#endif /* CONFIG_SPI_INTEL_PORT_0 */
-#if defined(CONFIG_SPI_INTEL_PORT_1)
-	ioapic_mkstub spi_intel_irq_port_1 spi_intel_isr spi_intel_isr_port_1
-#endif /* CONFIG_SPI_INTEL_PORT_1 */
-
-#if defined(CONFIG_SPI_DW_PORT_0)
-#ifdef CONFIG_IOAPIC
-	ioapic_mkstub spi_dw_irq_port_0 spi_dw_isr spi_dw_isr_port_0
-#endif
-#endif
-#if defined(CONFIG_SPI_DW_PORT_1)
-#ifdef CONFIG_IOAPIC
-	ioapic_mkstub spi_dw_irq_port_1 spi_dw_isr spi_dw_isr_port_1
-#endif
-#endif
-

drivers/timer/arcv2_timer0.c

@@ -311,9 +311,6 @@ static void tickless_idle_init(void) {}
  */
 int _sys_clock_driver_init(struct device *device)
 {
-	int irq = CONFIG_ARCV2_TIMER0_INT_LVL;
-	int prio = CONFIG_ARCV2_TIMER0_INT_PRI;
-
 	ARG_UNUSED(device);
 
 	/* ensure that the timer will not generate interrupts */
@@ -322,7 +319,8 @@ int _sys_clock_driver_init(struct device *device)
 
 	cycles_per_tick = sys_clock_hw_cycles_per_tick;
 
-	(void)irq_connect(irq, prio, _timer_int_handler, 0, 0);
+	irq_connect(CONFIG_ARCV2_TIMER0_INT_LVL, CONFIG_ARCV2_TIMER0_INT_PRI,
+		    _timer_int_handler, 0, 0);
 
 	/*
 	 * Set the reload value to achieve the configured tick rate, enable the

drivers/timer/hpet.c

@@ -183,8 +183,6 @@ extern struct nano_stack _k_command_stack;
 #define HPET_IOAPIC_FLAGS  (IOAPIC_LEVEL | IOAPIC_LOW)
 #endif
 
-IRQ_CONNECT_STATIC(hpet, CONFIG_HPET_TIMER_IRQ, CONFIG_HPET_TIMER_IRQ_PRIORITY,
-		   _timer_int_handler, 0, HPET_IOAPIC_FLAGS);
 
 #ifdef CONFIG_INT_LATENCY_BENCHMARK
 static uint32_t main_count_first_irq_value;
@@ -614,8 +612,8 @@ int _sys_clock_driver_init(struct device *device)
 	 * Although the stub has already been "connected", the vector number
 	 * still has to be programmed into the interrupt controller.
 	 */
-
+	irq_connect(CONFIG_HPET_TIMER_IRQ, CONFIG_HPET_TIMER_IRQ_PRIORITY,
-	IRQ_CONFIG(hpet, CONFIG_HPET_TIMER_IRQ);
+		   _timer_int_handler, 0, HPET_IOAPIC_FLAGS);
 
 	/* enable the IRQ in the interrupt controller */
 

drivers/timer/loapic_timer.c

@@ -128,10 +128,6 @@
 extern int32_t _sys_idle_elapsed_ticks;
 #endif /* TIMER_SUPPORTS_TICKLESS */
 
-IRQ_CONNECT_STATIC(loapic, CONFIG_LOAPIC_TIMER_IRQ,
-			CONFIG_LOAPIC_TIMER_IRQ_PRIORITY,
-			_timer_int_handler, 0, 0);
-
 /* computed counter 0 initial count value */
 static uint32_t __noinit cycles_per_tick;
 static uint32_t accumulated_cycle_count;
@@ -571,11 +567,8 @@ int _sys_clock_driver_init(struct device *device)
 	initial_count_register_set(cycles_per_tick - 1);
 	periodic_mode_set();
 
-	/*
+	irq_connect(CONFIG_LOAPIC_TIMER_IRQ, CONFIG_LOAPIC_TIMER_IRQ_PRIORITY,
-	 * Although the stub has already been "connected", the vector number
+		    _timer_int_handler, 0, 0);
-	 * still has to be programmed into the interrupt controller.
-	 */
-	IRQ_CONFIG(loapic, CONFIG_LOAPIC_TIMER_IRQ);
 
 	/* Everything has been configured. It is now safe to enable the
 	 * interrupt

drivers/watchdog/Makefile

@@ -1,5 +1,3 @@
 ccflags-$(CONFIG_WDT_QMSI) +=-I$(CONFIG_QMSI_INSTALL_PATH)/include
-
-obj-$(CONFIG_WATCHDOG) += wdt_static_irq_stubs.o
 obj-$(CONFIG_WDT_DW) += wdt_dw.o
 obj-$(CONFIG_WDT_QMSI) += wdt_qmsi.o

drivers/watchdog/wdt_dw.c

@@ -149,23 +149,7 @@ static struct wdt_driver_api wdt_dw_funcs = {
 	.reload = wdt_dw_reload,
 };
 
-/* IRQ_CONFIG needs the flags variable declared by IRQ_CONNECT_STATIC */
+int wdt_dw_init(struct device *dev);
-IRQ_CONNECT_STATIC(wdt_dw, CONFIG_WDT_DW_IRQ,
-		   CONFIG_WDT_DW_IRQ_PRI, wdt_dw_isr, 0, 0);
-
-int wdt_dw_init(struct device *dev)
-{
-	dev->driver_api = &wdt_dw_funcs;
-
-	IRQ_CONFIG(wdt_dw, CONFIG_WDT_DW_IRQ);
-	irq_enable(CONFIG_WDT_DW_IRQ);
-
-	_wdt_dw_int_unmask();
-
-	_wdt_dw_clock_config(dev);
-
-	return 0;
-}
 
 struct wdt_dw_runtime wdt_runtime;
 
@@ -182,4 +166,18 @@ DECLARE_DEVICE_INIT_CONFIG(wdt, CONFIG_WDT_DW_DRV_NAME,
 SYS_DEFINE_DEVICE(wdt, &wdt_runtime, SECONDARY,
 		  CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
 
-struct device *wdt_dw_isr_dev = SYS_GET_DEVICE(wdt);
+int wdt_dw_init(struct device *dev)
+{
+	dev->driver_api = &wdt_dw_funcs;
+
+	irq_connect(CONFIG_WDT_DW_IRQ, CONFIG_WDT_DW_IRQ_PRI, wdt_dw_isr,
+		    SYS_GET_DEVICE(wdt), 0);
+	irq_enable(CONFIG_WDT_DW_IRQ);
+
+	_wdt_dw_int_unmask();
+
+	_wdt_dw_clock_config(dev);
+
+	return 0;
+}
+

drivers/watchdog/wdt_qmsi.c

@@ -83,12 +83,10 @@ void wdt_qmsi_isr(void *arg)
 	qm_wdt_isr_0();
 }
 
-IRQ_CONNECT_STATIC(wdt, CONFIG_WDT_QMSI_IRQ, CONFIG_WDT_QMSI_IRQ_PRI,
-		   wdt_qmsi_isr, 0, IOAPIC_EDGE | IOAPIC_HIGH);
-
 static int init(struct device *dev)
 {
-	IRQ_CONFIG(wdt, CONFIG_WDT_QMSI_IRQ);
+	irq_connect(CONFIG_WDT_QMSI_IRQ, CONFIG_WDT_QMSI_IRQ_PRI,
+		    wdt_qmsi_isr, 0, IOAPIC_EDGE | IOAPIC_HIGH);
 
 	/* Unmask watchdog interrupt */
 	irq_enable(CONFIG_WDT_QMSI_IRQ);

drivers/watchdog/wdt_static_irq_stubs.S

@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corportation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-
-#if defined(CONFIG_WDT_DW)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub wdt_dw wdt_dw_isr wdt_dw_isr_dev
-#endif /* CONFIG_IOAPIC */
-#endif
-
-#if defined(CONFIG_WDT_QMSI)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub wdt wdt_qmsi_isr wdt_qmsi_isr_dev
-#endif /* CONFIG_IOAPIC || CONFIG_MVIC */
-#endif /* CONFIG_WDT_QMSI */
-
-/* externs (internal APIs) */
-
-GTEXT(_IntEnt)
-GTEXT(_IntExit)

include/arch/arc/arch.h

@@ -56,50 +56,48 @@ extern "C" {
 
 #ifndef _ASMLANGUAGE
 
-/**
+/* internal routine documented in C file, needed by irq_connect() macro */
- * @brief Connect a routine to interrupt number
- *
- * For the device @a device associates IRQ number @a irq with priority
- * @a priority with the interrupt routine @a isr, that receives parameter
- * @a parameter.
- * IRQ connect static is currently not supported in ARC architecture.
- * The macro is defined as empty for code compatibility with other
- * architectures.
- *
- * @param device Device
- * @param i IRQ number
- * @param p IRQ Priority
- * @param h Interrupt Service Routine
- * @param pm ISR parameter
- * @param f IRQ triggering options
- *
- * @return N/A
- *
- */
-#define IRQ_CONNECT_STATIC(device, i, p, h, pm, f) \
-	const unsigned int _##device##_int_priority = (p);       \
-	struct _IsrTableEntry _CONCAT(_isr_irq, i)                     \
-	__attribute__ ((section(STRINGIFY(_CONCAT(.gnu.linkonce.isr_irq, i))))) = \
-	{pm, h}
-
-/* internal routine documented in C file, needed by IRQ_CONFIG macro */
 extern void _irq_priority_set(unsigned int irq, unsigned int prio);
 
 /**
+ * Configure a static interrupt.
  *
- * @brief Configure interrupt for the device
+ * All arguments must be computable by the compiler at build time; if this
+ * can't be done use irq_connect_dynamic() instead.
  *
- * For the selected device, do the neccessary configuration
+ * Internally this function does a few things:
- * steps to connect and enable the IRQ line with an ISR
- * at the priority requested.
- * @param device - Device name
- * @param i IRQ number
  *
- * @return N/A
+ * 1. The enum statement has no effect but forces the compiler to only
+ * accept constant values for the irq_p parameter, very important as the
+ * numerical IRQ line is used to create a named section.
  *
+ * 2. An instance of _IsrTableEntry is created containing the ISR and its
+ * parameter. If you look at how _sw_isr_table is created, each entry in the
+ * array is in its own section named by the IRQ line number. What we are doing
+ * here is to override one of the default entries (which points to the
+ * spurious IRQ handler) with what was supplied here.
+ *
+ * 3. The priority level for the interrupt is configured by a call to
+ * _irq_priority_set()
+ *
+ * @param irq_p IRQ line number
+ * @param priority_p Interrupt priority
+ * @param isr_p Interrupt service routine
+ * @param isr_param_p ISR parameter
+ * @param flags_p IRQ triggering options (currently unused)
+ *
+ * @return The vector assigned to this interrupt
  */
-#define IRQ_CONFIG(device, i) \
+#define irq_connect(irq_p, priority_p, isr_p, isr_param_p, flags_p) \
-	_irq_priority_set(i, _##device##_int_priority)
+({ \
+	enum { IRQ = irq_p }; \
+	static struct _IsrTableEntry _CONCAT(_isr_irq, irq_p) \
+		__attribute__ ((used))  \
+		__attribute__ ((section(STRINGIFY(_CONCAT(.gnu.linkonce.isr_irq, irq_p))))) = \
+			{isr_param_p, isr_p}; \
+	_irq_priority_set(irq_p, priority_p); \
+	irq_p; \
+})
 
 #endif
 

include/arch/arc/v2/irq.h

@@ -33,7 +33,7 @@ GTEXT(irq_connect)
 GTEXT(irq_enable)
 GTEXT(irq_disable)
 #else
-extern int irq_connect(unsigned int irq,
+extern int irq_connect_dynamic(unsigned int irq,
 			     unsigned int prio,
 			     void (*isr)(void *arg),
 			     void *arg,

include/arch/arm/cortex_m/irq.h

@@ -29,11 +29,11 @@
 
 #ifdef _ASMLANGUAGE
 GTEXT(_IntExit);
-GTEXT(irq_connect)
+GTEXT(irq_connect_dynamic)
 GTEXT(irq_enable)
 GTEXT(irq_disable)
 #else
-extern int irq_connect(unsigned int irq,
+extern int irq_connect_dynamic(unsigned int irq,
 			     unsigned int prio,
 			     void (*isr)(void *arg),
 			     void *arg,
@@ -52,40 +52,49 @@ extern void _IntExit(void);
 #define DO_CONCAT(x, y) x ## y
 #define CONCAT(x, y) DO_CONCAT(x, y)
 
-/**
+/* internal routine documented in C file, needed by irq_connect() macro */
- *
- * @brief Connect a routine to interrupt number
- *
- * For the device @a device associates IRQ number @a irq with priority
- * @a priority with the interrupt routine @a isr, that receives parameter
- * @a parameter
- *
- * @return N/A
- *
- */
-#define IRQ_CONNECT_STATIC(device, irq, priority, isr, parameter, flags) \
-	const unsigned int _##device##_int_priority = (priority);	\
-	struct _IsrTableEntry CONCAT(_isr_irq, irq)			\
-	__attribute__ ((section(TOSTR(CONCAT(.gnu.linkonce.isr_irq, irq))))) = \
-	{parameter, isr}
-
-/* internal routine documented in C file, needed by IRQ_CONFIG macro */
 extern void _irq_priority_set(unsigned int irq, unsigned int prio);
 
+
 /**
+ * Configure a static interrupt.
  *
- * @brief Configure interrupt for the device
+ * All arguments must be computable by the compiler at build time; if this
+ * can't be done use irq_connect_dynamic() instead.
  *
- * For the given device do the necessary configuration steps.
+ * Internally this function does a few things:
- * For ARM platform, set the interrupt priority
  *
- * @param device Device to configure
+ * 1. The enum statement has no effect but forces the compiler to only
- * @param irq IRQ number
+ * accept constant values for the irq_p parameter, very important as the
- * @return N/A
+ * numerical IRQ line is used to create a named section.
  *
+ * 2. An instance of _IsrTableEntry is created containing the ISR and its
+ * parameter. If you look at how _sw_isr_table is created, each entry in the
+ * array is in its own section named by the IRQ line number. What we are doing
+ * here is to override one of the default entries (which points to the
+ * spurious IRQ handler) with what was supplied here.
+ *
+ * 3. The priority level for the interrupt is configured by a call to
+ * _irq_priority_set()
+ *
+ * @param irq_p IRQ line number
+ * @param priority_p Interrupt priority
+ * @param isr_p Interrupt service routine
+ * @param isr_param_p ISR parameter
+ * @param flags_p IRQ triggering options (currently unused)
+ *
+ * @return The vector assigned to this interrupt
  */
-#define IRQ_CONFIG(device, irq) \
+#define irq_connect(irq_p, priority_p, isr_p, isr_param_p, flags_p) \
-	_irq_priority_set(irq, _##device##_int_priority)
+({ \
+	enum { IRQ = irq_p }; \
+	static struct _IsrTableEntry _CONCAT(_isr_irq, irq_p) \
+		__attribute__ ((used)) \
+		__attribute__ ((section(STRINGIFY(_CONCAT(.gnu.linkonce.isr_irq, irq_p))))) = \
+			{isr_param_p, isr_p}; \
+	_irq_priority_set(irq_p, priority_p); \
+	irq_p; \
+})
 
 #endif /* _ASMLANGUAGE */
 

include/arch/x86/arch.h

@@ -151,35 +151,124 @@ typedef struct s_isrList {
 	 ISR_LIST __attribute__((section(".intList"))) MK_ISR_NAME(r) = \
 			{&r, n, p, v, d}
 
+
 /**
- * @brief Connect a routine to interrupt number
+ * Inline assembly code for the interrupt stub
  *
- * For the device @a device associates IRQ number @a irq with priority
+ * This is the actual assembly code which gets run when the interrupt
- * @a priority with the interrupt routine @a isr, that receives parameter
+ * is triggered. Due to different calling convention semantics we have
- * @a parameter.
+ * different versions for IAMCU and SYSV.
  *
- * @param device Device
+ * For IAMCU case, we call _execute_handler() with the isr and its argument
- * @param irq IRQ number
+ * as parameters.
- * @param priority IRQ Priority
- * @param isr Interrupt Service Routine
- * @param parameter ISR parameter
- * @param flags IRQ triggering options
  *
- * @return N/A
+ * For SysV case, we first call _IntEnt to properly enter Zephyr's interrupt
+ * handling context, and then directly call the isr. A jump is done to
+ * _IntExitWithEoi which does EOI to the interrupt controller, restores
+ * context, and finally does 'iret'.
  *
+ * This is only intended to be used by the irq_connect() macro.
  */
-#ifdef CONFIG_MVIC
+#if CONFIG_X86_IAMCU
-#define IRQ_CONNECT_STATIC(device, irq, priority, isr, parameter, flags)   \
+#define _IRQ_STUB_ASM \
-	extern void *_##device##_##isr##_stub;				   \
+	"pushl %%eax\n\t" \
-	const uint32_t _##device##_irq_flags = (flags);	\
+	"pushl %%edx\n\t" \
-	NANO_CPU_INT_REGISTER(_##device##_##isr##_stub, (irq),		   \
+	"pushl %%ecx\n\t" \
-			      ((irq) + 0x20) / 16, (irq) + 0x20, 0)
+	"movl %[isr], %%eax\n\t" \
+	"movl %[isr_param], %%edx\n\t" \
+	"call _execute_handler\n\t" \
+	"popl %%ecx\n\t" \
+	"popl %%edx\n\t" \
+	"popl %%eax\n\t" \
+	"iret\n\t"
 #else
-#define IRQ_CONNECT_STATIC(device, irq, priority, isr, parameter, flags)   \
+#define _IRQ_STUB_ASM \
-	extern void *_##device##_##isr##_stub;				               \
+	"call _IntEnt\n\t" \
-	const uint32_t _##device##_irq_flags = (flags);	\
+	"pushl %[isr_param]\n\t" \
-	NANO_CPU_INT_REGISTER(_##device##_##isr##_stub, (irq), (priority), -1, 0)
+	"call %P[isr]\n\t" \
-#endif
+	"jmp _IntExitWithEoi\n\t"
+#endif /* CONFIG_X86_IAMCU */
+
+/**
+ * Code snippets for populating the vector ID and priority into the intList
+ *
+ * The 'magic' of static interrupts is accomplished by building up an array
+ * 'intList' at compile time, and the gen_idt tool uses this to create the
+ * actual IDT data structure.
+ *
+ * For controllers like APIC, the vectors in the IDT are not normally assigned
+ * at build time; instead the sentinel value -1 is saved, and gen_idt figures
+ * out the right vector to use based on our priority scheme. Groups of 16
+ * vectors starting at 32 correspond to each priority level.
+ *
+ * On MVIC, the mapping is fixed; the vector to use is just the irq line
+ * number plus 0x20. The priority argument supplied by the user is discarded.
+ *
+ * These macros are only intended to be used by irq_connect() macro.
+ */
+#if CONFIG_MVIC
+#define _PRIORITY_ARG(irq_p, priority_p)	((irq_p + 0x20) / 16)
+#define _VECTOR_ARG(irq_p)			(irq_p + 0x20)
+#else
+#define _PRIORITY_ARG(irq_p, priority_p)	(priority_p)
+#define _VECTOR_ARG(irq_p)			(-1)
+#endif /* CONFIG_MVIC */
+
+/**
+ * Configure a static interrupt.
+ *
+ * All arguments must be computable by the compiler at build time; if this
+ * can't be done use irq_connect_dynamic() instead.
+ *
+ * Internally this function does a few things:
+ *
+ * 1. There is a block of inline assembly which is completely skipped over
+ * at runtime with an initial 'jmp' instruction.
+ *
+ * 2. There is a declaration of the interrupt parameters in the .intList
+ * section, used by gen_idt to create the IDT. This does the same thing
+ * as the NANO_CPU_INT_REGISTER() macro, but is done in assembly as we
+ * need to populate the .fnc member with the address of the assembly
+ * IRQ stub that we generate immediately afterwards.
+ *
+ * 3. The IRQ stub itself is declared. It doesn't get run in the context
+ * of the calling function due to the initial 'jmp' instruction at the
+ * beginning of the assembly block, but a pointer to it gets saved in the IDT.
+ *
+ * 4. _SysIntVecProgram() is called at runtime to set the mapping between
+ * the vector and the IRQ line.
+ *
+ * @param irq_p IRQ line number
+ * @param priority_p Interrupt priority
+ * @param isr_p Interrupt service routine
+ * @param isr_param_p ISR parameter
+ * @param flags_p IRQ triggering options
+ *
+ * @return The vector assigned to this interrupt
+ */
+#define irq_connect(irq_p, priority_p, isr_p, isr_param_p, flags_p) \
+({ \
+	__asm__ __volatile__(							\
+		"jmp 2f\n\t" \
+		".pushsection .intList\n\t" \
+		".long 1f\n\t"			/* ISR_LIST.fnc */ \
+		".long %P[irq]\n\t"		/* ISR_LIST.irq */ \
+		".long %P[priority]\n\t"	/* ISR_LIST.priority */ \
+		".long %P[vector]\n\t"		/* ISR_LIST.vec */ \
+		".long 0\n\t"			/* ISR_LIST.dpl */ \
+		".popsection\n\t" \
+		"1:\n\t" \
+		_IRQ_STUB_ASM \
+		"2:\n\t" \
+		: \
+		: [isr] "i" (isr_p), \
+		  [isr_param] "i" (isr_param_p), \
+		  [priority] "i" _PRIORITY_ARG(irq_p, priority_p), \
+		  [vector] "i" _VECTOR_ARG(irq_p), \
+		  [irq] "i" (irq_p)); \
+	_SysIntVecProgram(_IRQ_TO_INTERRUPT_VECTOR(irq_p), (irq_p), (flags_p)); \
+	_IRQ_TO_INTERRUPT_VECTOR(irq_p); \
+})
 
 extern unsigned char _irq_to_interrupt_vector[];
 /**
@@ -190,24 +279,6 @@ extern unsigned char _irq_to_interrupt_vector[];
 #define _IRQ_TO_INTERRUPT_VECTOR(irq)                       \
 			((unsigned int) _irq_to_interrupt_vector[irq])
 
-/**
- *
- * @brief Configure interrupt for the device
- *
- * For the given device do the necessary configuration steps.
- * For x86 platform configure APIC and mark interrupt vector allocated
- * @param device Device - not used by macro
- * @param irq IRQ
- *
- * @return N/A
- *
- */
-#define IRQ_CONFIG(device, irq)						\
-	do {								\
-		_SysIntVecProgram(_IRQ_TO_INTERRUPT_VECTOR((irq)), (irq), \
-				  _##device##_irq_flags);		\
-	} while (0)
-
 
 /**
  * @brief Nanokernel Exception Stack Frame
@@ -378,7 +449,7 @@ typedef void (*NANO_EOI_GET_FUNC) (void *);
 #endif /* CONFIG_SSE */
 #endif /* CONFIG_FP_SHARING */
 
-extern int	irq_connect(unsigned int irq,
+extern int	irq_connect_dynamic(unsigned int irq,
 					 unsigned int priority,
 					 void (*routine)(void *parameter),
 					 void *parameter,

include/drivers/ioapic.h

@@ -46,9 +46,7 @@ extern "C" {
 #define IOAPIC_INIT 0x00000500
 #define IOAPIC_EXTINT 0x00000700
 
-#ifdef _ASMLANGUAGE
+#ifndef _ASMLANGUAGE
-#define ioapic_mkstub loapic_mkstub
-#else /* _ASMLANGUAGE */
 #include <device.h>
 void _ioapic_irq_enable(unsigned int irq);
 void _ioapic_irq_disable(unsigned int irq);

include/drivers/loapic.h

@@ -54,40 +54,7 @@ extern "C" {
 /* Local APIC Vector Table Bits */
 #define LOAPIC_LVT_MASKED 0x00010000   /* mask */
 
-#ifdef _ASMLANGUAGE
+#ifndef _ASMLANGUAGE
-loapic_eoi = (CONFIG_LOAPIC_BASE_ADDRESS + LOAPIC_EOI)
-
-#if !defined(CONFIG_X86_IAMCU)
-.macro loapic_mkstub device isr context
-GTEXT(_\()\device\()_\()\isr\()_stub)
-
-SECTION_FUNC(TEXT, _\()\device\()_\()\isr\()_stub)
-	call    _IntEnt          /* Inform kernel interrupt has begun */
-	pushl   \context         /* Push context parameter */
-	call    \isr             /* Call actual interrupt handler */
-	jmp     _IntExitWithEoi  /* Inform kernel interrupt is done */
-.endm
-#else
-
-.macro loapic_mkstub device isr context
-
-GTEXT(_\()\device\()_\()\isr\()_stub)
-
-SECTION_FUNC(TEXT, _\()\device\()_\()\isr\()_stub)
-	pushl %eax
-	pushl %edx
-	pushl %ecx
-	movl $\isr, %eax
-	movl \context, %edx
-	call _execute_handler
-	pop %ecx
-	pop %edx
-	pop %eax
-	iret
-.endm
-#endif /* CONFIG_X86_IAMCU */
-
-#else /* _ASMLANGUAGE */
 #include <device.h>
 
 extern void _loapic_int_vec_set(unsigned int irq, unsigned int vector);

include/shared_irq.h

@@ -38,7 +38,7 @@ struct shared_irq_driver_api {
 
 extern int shared_irq_initialize(struct device *port);
 
-typedef void (*shared_irq_config_irq_t)(struct device *port);
+typedef void (*shared_irq_config_irq_t)(void);
 
 struct shared_irq_config {
 	uint32_t irq_num;

kernel/microkernel/k_irq.c

@@ -214,11 +214,7 @@ uint32_t task_irq_alloc(kirq_t irq_obj,	uint32_t irq, uint32_t priority,
 		return INVALID_VECTOR;
 	}
 
-	/*
+	irq_obj_ptr->vector = irq_connect_dynamic(
-	 * NOTE: the comma that seems to be missing is part of the IRQ_STUB
-	 *       definition to abstract the different irq_connect signatures
-	 */
-	irq_obj_ptr->vector = irq_connect(
 		irq, priority, task_irq_int_handler, (void *)irq_obj_ptr,
 		flags);
 	irq_enable(irq);

samples/microkernel/benchmark/footprint/src/microkernel_footprint.c

@@ -158,7 +158,7 @@ void fgTaskEntry(void)
 {
 #ifdef TEST_max
 	/* dynamically link in dummy ISR */
-	irq_connect(NANO_SOFT_IRQ, IRQ_PRIORITY, dummyIsr, (void *) 0, 0);
+	irq_connect_dynamic(NANO_SOFT_IRQ, IRQ_PRIORITY, dummyIsr, (void *) 0, 0);
 #endif /* TEST_max */
 
 	/* note: referencing "func_array" ensures it isn't optimized out */

samples/nanokernel/benchmark/footprint/src/nanokernel_footprint.c

@@ -159,7 +159,7 @@ void main(void)
 {
 #ifdef TEST_max
 	/* dynamically link in dummy ISR */
-	irq_connect(NANO_SOFT_IRQ, IRQ_PRIORITY, dummyIsr,
+	irq_connect_dynamic(NANO_SOFT_IRQ, IRQ_PRIORITY, dummyIsr,
 		    (void *) 0, 0);
 #endif /* TEST_max */
 #ifndef TEST_min

samples/nanokernel/benchmark/object_footprint/src/nanokernel_objects.c

@@ -147,7 +147,7 @@ void main(void)
 
 #ifdef CONFIG_DYNAMIC_ISR
 	/* dynamically link in dummy ISR */
-	irq_connect(NANO_SOFT_IRQ, IRQ_PRIORITY, dummyIsr,
+	irq_connect_dynamic(NANO_SOFT_IRQ, IRQ_PRIORITY, dummyIsr,
 		    (void *) 0, 0);
 #endif
 

samples/nanokernel/test/test_context/src/README

@@ -37,9 +37,8 @@ irq_unlock
   - Continuation irq_lock: unlock interrupts, loop and verify the tick
     count changes.
 
-irq_connect
+irq_offload
-  - Used during nanokernel object initialization.  Verified when triggering
+  - Used when triggering an ISR to perform ISR context work.
-    an ISR to perform ISR context work.
 
 nanoCpuExcConnect
   - Used during nanokernel object initialization.  Verified by triggering a

samples/nanokernel/test/test_context/src/context.c

@@ -22,7 +22,7 @@ This module tests the following CPU and thread related routines:
   fiber_fiber_start(), task_fiber_start(), fiber_yield(),
   sys_thread_self_get(), sys_execution_context_type_get(), nano_cpu_idle(),
   irq_lock(), irq_unlock(),
-  irq_connect(), nanoCpuExcConnect(),
+  irq_offload(), nanoCpuExcConnect(),
   irq_enable(), irq_disable(),
  */