[FIXUP/FEATURE/PIC] PIC API and MSI/MSI-X example

components/drivers/include/drivers/pic.h

@@ -148,6 +148,7 @@ void rt_pic_default_name(struct rt_pic *pic);
 struct rt_pic *rt_pic_dynamic_cast(void *ptr);
 
 rt_err_t rt_pic_linear_irq(struct rt_pic *pic, rt_size_t irq_nr);
+rt_err_t rt_pic_cancel_irq(struct rt_pic *pic);
 
 int rt_pic_config_ipi(struct rt_pic *pic, int ipi_index, int hwirq);
 int rt_pic_config_irq(struct rt_pic *pic, int irq_index, int hwirq);

components/drivers/pic/Kconfig

@@ -1,6 +1,7 @@
 menuconfig RT_USING_PIC
     bool "Using Programmable Interrupt Controller (PIC)"
-    select RT_USING_BITMAP
+    select RT_USING_ADT
+    select RT_USING_ADT_BITMAP
     depends on RT_USING_DM
     default n
 
@@ -22,12 +23,31 @@ config RT_PIC_ARM_GIC
     select RT_USING_OFW
     default n
 
+config RT_PIC_ARM_GIC_V2M
+    bool "ARM GIC V2M" if RT_PIC_ARM_GIC && RT_PCI_MSI
+    depends on RT_USING_OFW
+    default n
+
 config RT_PIC_ARM_GIC_V3
     bool "ARM GICv3"
     depends on RT_USING_PIC
     select RT_USING_OFW
     default n
 
+config RT_PIC_ARM_GIC_V3_ITS
+    bool "ARM GICv3 ITS (Interrupt Translation Service)" if RT_PIC_ARM_GIC_V3 && RT_PCI_MSI
+    depends on RT_USING_OFW
+    select RT_USING_ADT_REF
+    default n
+
+config RT_PIC_ARM_GIC_V3_ITS_IRQ_MAX
+    int "IRQ maximum used"
+    depends on RT_PIC_ARM_GIC_V3_ITS
+    default 127 if ARCH_CPU_64BIT
+    default 63
+    help
+      Recommended to be based on the bit length (full bits) of maximum usage.
+
 config RT_PIC_ARM_GIC_MAX_NR
     int
     depends on RT_USING_PIC

components/drivers/pic/SConscript

@@ -16,9 +16,15 @@ if GetDepend(['RT_PIC_ARM_GIC']) or GetDepend(['RT_PIC_ARM_GIC_V3']):
 if GetDepend(['RT_PIC_ARM_GIC']):
     src += ['pic-gicv2.c']
 
+if GetDepend(['RT_PIC_ARM_GIC_V2M']):
+    src += ['pic-gicv2m.c']
+
 if GetDepend(['RT_PIC_ARM_GIC_V3']):
     src += ['pic-gicv3.c']
 
+if GetDepend(['RT_PIC_ARM_GIC_V3_ITS']):
+    src += ['pic-gicv3-its.c']
+
 group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
 
 Return('group')

components/drivers/pic/pic-gic-common.h

@@ -8,10 +8,14 @@
  * 2023-01-30     GuEe-GUI     first version
  */
 
-#ifndef __IRQ_GIC_COMMON_H__
-#define __IRQ_GIC_COMMON_H__
+#ifndef __PIC_GIC_COMMON_H__
+#define __PIC_GIC_COMMON_H__
 
 #include <rtdef.h>
+
+#ifdef RT_PCI_MSI
+#include <drivers/pci_msi.h>
+#endif
 #include <drivers/ofw.h>
 
 #define GIC_SGI_NR  16
@@ -52,4 +56,4 @@ rt_err_t gicv2m_ofw_probe(struct rt_ofw_node *ic_np, const struct rt_ofw_node_id
 rt_err_t gicv3_its_ofw_probe(struct rt_ofw_node *ic_np, const struct rt_ofw_node_id *id);
 #endif
 
-#endif /* __IRQ_GIC_COMMON_H__ */
+#endif /* __PIC_GIC_COMMON_H__ */

components/drivers/pic/pic-gicv2.c

@@ -128,6 +128,8 @@ static void gicv2_cpu_init(struct gicv2 *gic)
 
 #ifdef ARCH_SUPPORT_HYP
     _gicv2_eoi_mode_ns = RT_TRUE;
+#else
+    _gicv2_eoi_mode_ns = !!rt_ofw_bootargs_select("pic.gicv2_eoimode", 0);
 #endif
 
     if (_gicv2_eoi_mode_ns)