SceKernelIntrMgr

SceKernelIntrMgr is a kernel module that is primary responsible for setting up external and internal interrupts. Notably, it facilitates communication with the F00D Processor.

Module

This module exists in both non-secure and secure world. The non-secure world SELF can be found in os0:kd/intrmgr.skprx. It also can be found in the Boot Image.

Known NIDs

Version	Name	World	Privilege	NID
1.69	SceKernelIntrMgr	Non-secure	Kernel	0xB3A12CDC
1.69	SceKernelIntrMgr	Secure	Kernel	0x8A9875BC

Libraries

This module only exports kernel libraries.

Known NIDs

Version	Name	World	Visibility	NID
1.69	SceIntrmgrForDriver	Non-secure	Kernel	0x9DF04041
1.69	SceIntrmgrForKernel	Non-secure	Kernel	0x7AC5E3A
1.69	SceIntrmgrForTZS	Secure	Kernel	0xEC3056FE

SceIntrmgrForDriver

sceKernelIsSubInterruptOccurredForDriver

Version	World	NID
0.990-3.60	non-secure	0x950B864B

Setting up interrupt

Version	World	NID
1.69	secure	0x6B84DA8F
1.69	non-secure	0x5C1FEB29

typedef struct SceKernelRegisterInterruptOptionsExtended
{
	unsigned int size;
	unsigned int unk_4;
	unsigned int unk_8;
	SceKernelIntrOptParam2Callback1 *release_subintr_cb;
	SceKernelIntrOptParam2Callback1 *fptr0;
	SceKernelIntrOptParam2Callback1 *enable_subintr_cb;
	SceKernelIntrOptParam2Callback1 *disable_subintr_cb;
	SceKernelIntrOptParam2Callback2 *fptr3;
	unsigned int unk_20;
	unsigned int unk_24;
} SceKernelRegisterInterruptOptionsExtended; /* size = 0x28 */

typedef struct SceKernelRegisterInterruptOptions
{
	unsigned int size;
	unsigned int num;
	SceKernelRegisterInterruptOptionsExtended *opt2;
	unsigned int flags; /* 0b1 = use sensitivity param */
	unsigned int sensitivity;
} SceKernelRegisterInterruptOptions; /* size = 0x14 */

typedef int (SceKernelIntrHandler)(int intr_code, void* userCtx);

int register_interrupt(int code, const char *name, int interrupt_type, SceKernelIntrHandler *handler, void* userCtx, int priority, int targetcpu, SceKernelRegisterInterruptOptions *opt);

sceKernelReleaseIntrHandlerForDriver

Version	NID
0.990-3.60	0xD6009B98

This function first performs a disable and then removes the current interrupt handler associated with the interrupt intr_code.

int sceKernelReleaseIntrHandlerForDriver(int intr_code);

sceKernelDisableIntrForDriver

Version	NID
0.990-3.60	0x180435EC

int sceKernelDisableIntrForDriver(int intr_code);

This function writes 1 << (intr_code % 32) to the Interrupt Disable Registers (offset 0x180 from the Interrupt Distributor registers) at 0x180 + (intr_code / 32) * 4.

sceKernelEnableIntrForDriver

Version	NID
0.990-3.60	0x7117E827

int sceKernelEnableIntrForDriver(int intr_code);

This function writes 1 << (intr_code % 32) to the Interrupt Enable Registers (offset 0x100 from the Interrupt Distributor registers) at 0x100 + (intr_code / 32) * 4.

sceKernelResumeIntrForDriver

Version	NID
0.990-3.60	0xA4C772AF

int sceKernelResumeIntrForDriver(int intr_code, int enabled);

Enables or disables an interrupt. If a 0 is passed to enabled, it acts as sceKernelDisableIntrForDriver, and if a 1 is passed, it acts as sceKernelEnableIntrForDriver.

sceKernelSuspendIntrForDriver

Version	NID
0.990-3.60	0x6EC07C56

int sceKernelSuspendIntrForDriver(int intr_code, int *enabled);

This function returns whether the interrupt intr_code is enabled or not. If it's enabled, a 1 will be written to enabled and a 0 otherwise. To check the enable status, the function checks the bit number intr_code % 32 of the Interrupt Enable register (offset 0x100 from the Interrupt Distributor registers) at 0x100 + (intr_code / 32) * 4.

sceKernelGetIntrPendingStatusForDebuggerForDriver

Version	NID
0.990-3.60	0xA269003D

int sceKernelGetIntrPendingStatusForDebuggerForDriver(int intr_code);

This function returns whether the interrupt intr_code is pending or not. If it's pending, a 1 will be returned, and a 0 will be returned otherwise. To check the pending status, the function checks the bit number intr_code % 32 of the Interrupt Set-Pending Registers (offset 0x200 from the Interrupt Distributor registers) at 0x200 + (intr_code / 32) * 4.

sceKernelClearIntrPendingStatusForDebuggerForDriver

Version	NID
0.990-3.60	0x4DC48A01

int sceKernelClearIntrPendingStatusForDebuggerForDriver(int intr_code);

This function writes 1 << (intr_code % 32) to the Interrupt Clear-Pending Registers (offset 0x280 from the Interrupt Distributor registers) at 0x280 + (intr_code / 32) * 4.

sceKernelSetIntrPriorityForDriver

Version	NID
0.990-3.60	0x71020E29

int sceKernelSetIntrPriorityForDriver(int intr_code, unsigned char priority);

This function writes priority to the Interrupt Priority Registers (offset 0x400 from the Interrupt Distributor registers) at 0x400 + intr_code.

sceKernelGetIntrPriorityForDriver

Version	NID
0.990-3.60	0xE427D050

int sceKernelGetIntrPriorityForDriver(int intr_code, int *priority);

sceKernelSetIntrTargetCpuForDriver

Version	NID
0.990-3.60	0x973BACCC

int sceKernelSetIntrTargetCpuForDriver(int intr_code, int cpu_mask);

This function writes the bits 0-8 or 16-24 of cpu_mask, depending on whether the mask is in former or the latter bits, to the Interrupt Processor Targets Registers (offset 0x800 from the Interrupt Distributor registers) at 0x800 + intr_code

sceKernelGetIntrTargetCpuForDriver

Version	NID
0.990-3.60	0x353CFAAE

int sceKernelGetIntrTargetCpuForDriver(int intr_code, int *cpu_mask);

sceKernelGenerateSoftIntrForDriver

Version	NID
0.990-3.60	0x29F62500

int sceKernelGenerateSoftIntrForDriver(int intr_code, unsigned int target_list_filter, unsigned int cpu_target_list);

This function triggers a SGI (software generated interrupt) by writing (target_list_filter << 24) | (cpu_target_list << 16) | intr_code to the Software Generated Interrupt Register (offset 0xF00 from the Interrupt Distributor registers, physical address 0x1A001F00). Note: intr_code must be between 0x0 and 0xF.

Context allowed

Version	NID
0.990-3.60	0x182EE3E3

int SceIntrmgrForDriver_182EE3E3(int intr_code);

If the current "PL1 only Thread ID Register" is != 0 it returns 0, else checks if the current "Multiprocessor Affinity Register" is a target of the interrupt intr_code and returns 1 if it is, and 0 otherwise.

sceKernelRegisterSubIntrHandlerForDriver

Version	NID
0.990-3.60	0x96576C18

int sceKernelRegisterSubIntrHandlerForDriver(int intr_code, int subintr_code, const char *name, void *handler, void *register_arg);

sceKernelReleaseSubIntrHandlerForDriver

Version	World	NID
0.990-3.60	non-secure	0x7B9657B3

int sceKernelReleaseSubIntrHandlerForDriver(int intr_code, int subintr_code);

sceKernelCallSubIntrHandlerForDriver

Version	World	NID
0.990-3.60	non-secure	0xCC94B294

Triggers a subinterrupt by directly calling it.

int sceKernelCallSubIntrHandlerForDriver(int intr_code, int subintr_code, void *subintr_arg);

sceKernelEnableSubIntrForDriver

Version	World	NID
0.990-3.60	non-secure	0x901E41D8

It also calls fptr1 of the registered reg_intr_opt2 as: reg_intr_opt2.fptr1(intrcode, subintr_code).

int sceKernelEnableSubIntrForDriver(unsigned int intrcode, unsigned int subintr_code);

sceKernelDisableSubIntrForDriver

Version	World	NID
0.990-3.60	non-secure	0x259C6D9E

Calls fptr2 of the registered reg_intr_opt2 as: reg_intr_opt2.fptr2(intr_code, subintr_code).

int sceKernelDisableSubIntrForDriver(int intr_code, int subintr_code);

Calls reg_intr_opt2::fptr3

Version	World	NID
3.60	non-secure?	0x3A9EA7D1

int SceIntrmgrForDriver_3A9EA7D1(int intr_code, int subintr_code, void *arg);

Calls fptr3 of the registered reg_intr_opt2 as: reg_intr_opt2.fptr3(intr_code, subintr_code, arg).

Registering SMC call (secure only)

Version	World	NID
1.69	secure	0xC188114F

int register_smc(int service_id, void **func);

SceIntrmgrForKernel

sceKernelGetIntrPendingStatusForDebuggerForKernel

Version	NID
0.990-3.60	0xA269003D

sceKernelClearIntrPendingStatusForDebuggerForKernel

Version	NID
0.990-3.60	0x4DC48A01

allocate_syscall_table

Version	NID
0.990-3.60	0xB60ACF4B

Calls sceKernelAllocSystemCallTableForKernel.

sceKernelQueryIntrHandlerInfoForKernel

Version	NID
0.990-3.60	0xB5AFAE49

int sceKernelQueryIntrHandlerInfoForKernel(unsigned int intr_code, unsigned int a2, int a3);

get_intr_logs

Version	NID
0.990	0xB04086C6
3.60	not present

Read Physical_Memory#Interrupt_registers and writes logs to str_buf.

int get_intr_logs(char *str_buf, unsigned int max_len);

Controller

The interrupt controller is defined in the MPCore TRM [1]. The PERIPHBASE address (physical) is 0x1A000000.

Registered Interrupts

As specified in GIC Architecture, interrupt 0-15 are software generated interrupts. There are also no private peripheral interrupts (16-31) implemented. Core Handler indicates which core handles the exception. "All" means it can be handled by any core.

Code	World	Registered names	Core Handler	Priority
0	Non-secure	SceSDfMgrBreakSgiHandler	0	16
1	Non-secure	SceSDfMgrThreadSgiHandler	0	32
2	Non-secure	SceThreadmgrSGI	0	48
4	Non-secure	SceSblSmSchedProxySGI	0	128
6	Non-secure	SceKernelProcessmgr	0	80
8	Non-secure	SceDisplayVbStartSGI, SceCtrlVblank	0	160
10	Non-secure	ScePowerMain	0	80
11	Secure	ScePervasive	0	80
32	Non-secure	SceBusError	All	16
33	Secure	SceBusErrorSecure	All	16
34	Secure	SceEmcTop	All	80
36	Non-secure	SceIntrmgrVfpException0	All	16
37	Non-secure	SceIntrmgrVfpException1	All	16
38	Non-secure	SceIntrmgrVfpException2	All	16
39	Non-secure	SceIntrmgrVfpException3	All	16
49	Non-secure	SceGpio1Gate2	All	160
50	Non-secure	SceGpio1Gate3	All	192
51	Non-secure	SceGpio1Gate4	All	208
52	Non-secure	SceGpuLisr	All	80
56	Non-secure	SceVipMailbox0	All	208
60	Non-secure	SceMsifIns	All	128
61	Non-secure	SceMsifSmshc	All	128
68	Non-secure	SceCompat4	0	160
69	Non-secure	SceCompat5	1	160
70	Non-secure	SceCompat6	2	160
71	Non-secure	SceCompat7	0	160
72	Non-secure	SceCompat8	1	160
73	Non-secure	SceCompat9	2	160
74	Non-secure	SceCompat10	0	160
80	Non-secure	SceVeneziaMailbox00	All	208
81	Non-secure	SceVeneziaMailbox01	All	208
82	Non-secure	SceVeneziaMailbox02	All	208
83	Non-secure	SceVeneziaMailbox03	All	208
84	Non-secure	SceVeneziaMailbox04	All	208
85	Non-secure	SceVeneziaMailbox05	All	208
86	Non-secure	SceVeneziaMailbox06	All	208
87	Non-secure	SceVeneziaMailbox07	All	208
88	Non-secure	SceVeneziaMailbox08	All	208
89	Non-secure	SceVeneziaMailbox09	All	208
90	Non-secure	SceVeneziaMailbox10	All	208
91	Non-secure	SceVeneziaMailbox11	All	208
92	Non-secure	SceVeneziaMailbox12	All	208
93	Non-secure	SceVeneziaMailbox13	All	208
94	Non-secure	SceVeneziaMailbox14	All	208
95	Non-secure	SceVeneziaMailbox15	All	208
112	Non-secure	SceDmacmgrDmac0Ch0	All	128
113	Non-secure	SceDmacmgrDmac0Ch1	All	128
114	Non-secure	SceDmacmgrDmac1Ch0	All	128
115	Non-secure	SceDmacmgrDmac1Ch1	All	128
116	Non-secure	SceDmacmgrDmac2Ch0	All	128
117	Non-secure	SceDmacmgrDmac2Ch1	All	128
118	Non-secure	SceDmacmgrDmac3Ch0	All	128
119	Non-secure	SceDmacmgrDmac3Ch1	All	128
120	Non-secure	SceDmacmgrDmac4Gate0	3	128
121	Non-secure	SceDmacmgrDmac4Gate1	3	128
122	Non-secure	SceDmacmgrDmac4Gate2	3	128
123	Non-secure	SceDmacmgrDmac4Gate3	3	128
124	Non-secure	SceDmacmgrDmac5Ch0	All	128
125	Non-secure	SceDmacmgrDmac5Ch1	All	128
126	Non-secure	SceDmacmgrDmac6Ch0	All	128
127	Non-secure	SceDmacmgrDmac6Ch1	All	128
128	Non-secure	SceSystimerWordTimer0	All	128
129	Non-secure	SceSystimerWordTimer1	All	128
130	Non-secure	SceSystimerWordTimer2	All	128
131	Non-secure	SceSystimerWordTimer3	All	128
132	Non-secure	SceSystimerWordTimer4	All	128
133	Non-secure	SceSystimerWordTimer5	All	128
134	Non-secure	SceSystimerWordTimer6	All	128
135	Secure	usleep	2	128
136	Non-secure	SceSystimerLongrangeTimer0	All	128
137	Non-secure	SceSystimerLongrangeTimer1	All	128
138	Non-secure	SceSystimerLongrangeTimer2	All	128
139	Non-secure	SceSystimerLongrangeTimer3	All	128
140	Non-secure	SceSystimerLongrangeTimer4	All	128
141	Non-secure	SceThreadmgrTimer	All	48
142	Non-secure	SceI2c0	All	160
143	Non-secure	SceI2c1	All	160
145	Non-secure	?	All	160
146	Non-secure	SceUsbEhci0	All	160
147	Non-secure	?	All	160
148	Non-secure	SceUsbEhci1	All	160
149	Non-secure	?	All	160
150	Non-secure	SceUsbEhci2	All	160
151	Non-secure	SceUdcd1_EP0	All	128
152	Non-secure	SceUdcd1_EP1-7	All	128
155	Non-secure	SceUdcd2_EP0	All	128
156	Non-secure	SceUdcd2_EP1-7	All	128
160	Non-secure	SceCsi0	All	160
162	Non-secure	SceCsi1	All	160
164	Non-secure	SceUdcd1_phy-ready	All	128
165	Non-secure	SceUdcd1_vbus	All	128
166	Non-secure	SceCif0	All	160
168	Non-secure	SceCif1	All	160
170	Non-secure	SceUdcd2_phy-ready	All	128
171	Non-secure	SceUdcd2_vbus	All	128
176	Non-secure	SceSDbgSdio0Mbox	All	16
176	Non-secure	SceSDbgSdio0Mbox	0	16
177	Non-secure	SceSDbgSdio0Mbox	1	16
178	Non-secure	SceSDbgSdio0Mbox	2	16
179	Non-secure	SceSDbgSdio0Mbox	3	16
181	Non-secure	SceUdcd0_EP0	All	128
182	Non-secure	SceUdcd0_EP1-7	All	128
184	Non-secure	?	All	128
190	Non-secure	SceUdcd0_phy-ready	All	128
191	Non-secure	SceUdcd0_vbus	All	128
193	Non-secure	?	3	160
194	Non-secure	SceI2s1	3	160
193	Non-secure	SceI2s0	3	160
196	Non-secure	SceI2s2	3	160
200	Secure	SceSblSmSchedCry2Arm0	3	128
201	Secure	SceSblSmSchedCry2Arm123	3	128
202	Secure	SceSblSmSchedCry2Arm123	3	128
203	Secure	SceSblSmSchedCry2Arm123	3	128
204	Non-secure	SceIftu0a	All	80
205	Non-secure	SceIftu0b	All	80
206	Non-secure	SceIftu1a	All	80
207	Non-secure	SceIftu1b	All	80
210	Non-secure	SceDisplayVbStartHDMI / SceDsi1	All	160
213	Non-secure	SceDisplayVbStartMainLCD / SceDsi0	All	160
220	Non-secure	SceSdif0	All	128
221	Non-secure	SceSdif1	All	128
222	Non-secure	SceSdif2	All	128
223	?	SceSdif3 (not present on 1.69)	?	?
225	Non-secure	SceUart1	All	80
248	Non-secure	SceGpio0Gate0	All	80
249	Non-secure	SceGpio0Gate1	All	112
250	Non-secure	SceGpio0Gate2	All	160
251	Non-secure	SceGpio0Gate3	All	192
252	Non-secure	SceGpio0Gate4	All	208
253	Non-secure	SceGpio1Gate0	All	80
254	Non-secure	SceGpio1Gate1	All	112
255	Non-secure	SceIftu2	All	80

Registered Subinterrupts

Interrupt code	Subinterrupt code	World	Registered names
8	3	Non-secure	SceCtrlVblank
8	5	Non-secure	SceTouchVblank
8	25	Non-secure	SceLedVblank
8	26	Non-secure	ScePowerVblank
248	4	Non-secure	SceSysconCmdclr
249	13	Non-secure	SceHdmiIntr