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Merge branch 'mpic' into next

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This commit is contained in:
Benjamin Herrenschmidt 2011-12-07 18:22:47 +11:00
parent 4666ca2aa3 09dc34a95b
commit 48b1bf86c3
33 changed files with 224 additions and 620 deletions
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14
arch/powerpc/include/asm/mpic.h
View file

@ -251,6 +251,9 @@ struct mpic_irq_save {
/* The instance data of a given MPIC */
struct mpic
{
/* The OpenFirmware dt node for this MPIC */
struct device_node *node;
/* The remapper for this MPIC */
struct irq_host *irqhost;
@ -293,6 +296,9 @@ struct mpic
/* Register access method */
enum mpic_reg_type reg_type;
/* The physical base address of the MPIC */
phys_addr_t paddr;
/* The various ioremap'ed bases */
struct mpic_reg_bank gregs;
struct mpic_reg_bank tmregs;
@ -331,11 +337,11 @@ struct mpic
* Note setting any ID (leaving those bits to 0) means standard MPIC
*/
/* This is the primary controller, only that one has IPIs and
* has afinity control. A non-primary MPIC always uses CPU0
* registers only
/*
* This is a secondary ("chained") controller; it only uses the CPU0
* registers. Primary controllers have IPIs and affinity control.
*/
#define MPIC_PRIMARY 0x00000001
#define MPIC_SECONDARY 0x00000001
/* Set this for a big-endian MPIC */
#define MPIC_BIG_ENDIAN 0x00000002

2
arch/powerpc/platforms/44x/iss4xx.c
View file

@ -71,7 +71,7 @@ static void __init iss4xx_init_irq(void)
/* The MPIC driver will get everything it needs from the
* device-tree, just pass 0 to all arguments
*/
struct mpic *mpic = mpic_alloc(np, 0, MPIC_PRIMARY, 0, 0,
struct mpic *mpic = mpic_alloc(np, 0, 0, 0, 0,
" MPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);

26
arch/powerpc/platforms/85xx/corenet_ds.c
View file

@ -31,32 +31,18 @@
#include <linux/of_platform.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
void __init corenet_ds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
unsigned int flags = MPIC_PRIMARY | MPIC_BIG_ENDIAN |
unsigned int flags = MPIC_BIG_ENDIAN |
MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU;
np = of_find_node_by_type(np, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
if (ppc_md.get_irq == mpic_get_coreint_irq)
flags |= MPIC_ENABLE_COREINT;
mpic = mpic_alloc(np, r.start, flags, 0, 256, " OpenPIC ");
mpic = mpic_alloc(NULL, 0, flags, 0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
@ -65,10 +51,6 @@ void __init corenet_ds_pic_init(void)
/*
* Setup the architecture
*/
#ifdef CONFIG_SMP
void __init mpc85xx_smp_init(void);
#endif
void __init corenet_ds_setup_arch(void)
{
#ifdef CONFIG_PCI
@ -77,9 +59,7 @@ void __init corenet_ds_setup_arch(void)
#endif
dma_addr_t max = 0xffffffff;
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
#ifdef CONFIG_PCI
for_each_node_by_type(np, "pci") {

23
arch/powerpc/platforms/85xx/ksi8560.c
View file

@ -57,29 +57,10 @@ static void machine_restart(char *cmd)
static void __init ksi8560_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
mpc85xx_cpm2_pic_init();

22
arch/powerpc/platforms/85xx/mpc8536_ds.c
View file

@ -36,29 +36,11 @@
void __init mpc8536_ds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
}

22
arch/powerpc/platforms/85xx/mpc85xx_ads.c
View file

@ -50,28 +50,10 @@ static int mpc85xx_exclude_device(struct pci_controller *hose,
static void __init mpc85xx_ads_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(np, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
mpc85xx_cpm2_pic_init();

24
arch/powerpc/platforms/85xx/mpc85xx_cds.c
View file

@ -188,30 +188,10 @@ static struct irqaction mpc85xxcds_8259_irqaction = {
static void __init mpc85xx_cds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(np, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
/* Return the mpic node */
of_node_put(np);
mpic_init(mpic);
}

30
arch/powerpc/platforms/85xx/mpc85xx_ds.c
View file

@ -35,6 +35,7 @@
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
#include "mpc85xx.h"
@ -62,43 +63,27 @@ static void mpc85xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
void __init mpc85xx_ds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
#ifdef CONFIG_PPC_I8259
struct device_node *np;
struct device_node *cascade_node = NULL;
int cascade_irq;
#endif
unsigned long root = of_get_flat_dt_root();
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) {
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY |
mpic = mpic_alloc(NULL, 0,
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
} else {
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
}
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
#ifdef CONFIG_PPC_I8259
@ -154,9 +139,6 @@ static int mpc85xx_exclude_device(struct pci_controller *hose,
/*
* Setup the architecture
*/
#ifdef CONFIG_SMP
extern void __init mpc85xx_smp_init(void);
#endif
static void __init mpc85xx_ds_setup_arch(void)
{
#ifdef CONFIG_PCI
@ -189,9 +171,7 @@ static void __init mpc85xx_ds_setup_arch(void)
ppc_md.pci_exclude_device = mpc85xx_exclude_device;
#endif
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
#ifdef CONFIG_SWIOTLB
if (memblock_end_of_DRAM() > max) {

26
arch/powerpc/platforms/85xx/mpc85xx_mds.c
View file

@ -51,6 +51,7 @@
#include <asm/qe_ic.h>
#include <asm/mpic.h>
#include <asm/swiotlb.h>
#include "smp.h"
#include "mpc85xx.h"
@ -155,10 +156,6 @@ static int mpc8568_mds_phy_fixups(struct phy_device *phydev)
* Setup the architecture
*
*/
#ifdef CONFIG_SMP
extern void __init mpc85xx_smp_init(void);
#endif
#ifdef CONFIG_QUICC_ENGINE
static void __init mpc85xx_mds_reset_ucc_phys(void)
{
@ -363,9 +360,7 @@ static void __init mpc85xx_mds_setup_arch(void)
}
#endif
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
mpc85xx_mds_qe_init();
@ -439,26 +434,11 @@ machine_arch_initcall(p1021_mds, swiotlb_setup_bus_notifier);
static void __init mpc85xx_mds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(NULL, "open-pic");
if (!np)
return;
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
mpc85xx_mds_qeic_init();

31
arch/powerpc/platforms/85xx/mpc85xx_rdb.c
View file

@ -29,6 +29,7 @@
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
#include "mpc85xx.h"
@ -44,49 +45,28 @@
void __init mpc85xx_rdb_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
unsigned long root = of_get_flat_dt_root();
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
if (of_flat_dt_is_compatible(root, "fsl,MPC85XXRDB-CAMP")) {
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY |
mpic = mpic_alloc(NULL, 0,
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
} else {
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
}
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
}
/*
* Setup the architecture
*/
#ifdef CONFIG_SMP
extern void __init mpc85xx_smp_init(void);
#endif
static void __init mpc85xx_rdb_setup_arch(void)
{
#ifdef CONFIG_PCI
@ -104,10 +84,7 @@ static void __init mpc85xx_rdb_setup_arch(void)
#endif
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n");
}

21
arch/powerpc/platforms/85xx/p1010rdb.c
View file

@ -32,24 +32,9 @@
void __init p1010_rdb_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start, MPIC_PRIMARY | MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);

30
arch/powerpc/platforms/85xx/p1022_ds.c
View file

@ -26,6 +26,7 @@
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include <asm/fsl_guts.h>
#include "smp.h"
#include "mpc85xx.h"
@ -240,38 +241,15 @@ p1022ds_valid_monitor_port(enum fsl_diu_monitor_port port)
void __init p1022_ds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (!np) {
pr_err("Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
pr_err("Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
}
#ifdef CONFIG_SMP
void __init mpc85xx_smp_init(void);
#endif
/*
* Setup the architecture
*/
@ -311,9 +289,7 @@ static void __init p1022_ds_setup_arch(void)
diu_ops.valid_monitor_port = p1022ds_valid_monitor_port;
#endif
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
#ifdef CONFIG_SWIOTLB
if (memblock_end_of_DRAM() > max) {

27
arch/powerpc/platforms/85xx/p1023_rds.c
View file

@ -30,6 +30,7 @@
#include <asm/prom.h>
#include <asm/udbg.h>
#include <asm/mpic.h>
#include "smp.h"
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
@ -41,10 +42,6 @@
* Setup the architecture
*
*/
#ifdef CONFIG_SMP
void __init mpc85xx_smp_init(void);
#endif
static void __init mpc85xx_rds_setup_arch(void)
{
struct device_node *np;
@ -89,33 +86,15 @@ static void __init mpc85xx_rds_setup_arch(void)
fsl_add_bridge(np, 0);
#endif
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
}
machine_device_initcall(p1023_rds, mpc85xx_common_publish_devices);
static void __init mpc85xx_rds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(NULL, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");

25
arch/powerpc/platforms/85xx/sbc8548.c
View file

@ -54,31 +54,10 @@ static int sbc_rev;
static void __init sbc8548_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(np, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
/* Return the mpic node */
of_node_put(np);
mpic_init(mpic);
}

22
arch/powerpc/platforms/85xx/sbc8560.c
View file

@ -41,28 +41,10 @@
static void __init sbc8560_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(np, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
mpc85xx_cpm2_pic_init();

1
arch/powerpc/platforms/85xx/smp.c
View file

@ -27,6 +27,7 @@
#include <sysdev/fsl_soc.h>
#include <sysdev/mpic.h>
#include "smp.h"
extern void __early_start(void);

15
arch/powerpc/platforms/85xx/smp.h Normal file
View file

@ -0,0 +1,15 @@
#ifndef POWERPC_85XX_SMP_H_
#define POWERPC_85XX_SMP_H_ 1
#include <linux/init.h>
#ifdef CONFIG_SMP
void __init mpc85xx_smp_init(void);
#else
static inline void mpc85xx_smp_init(void)
{
/* Nothing to do */
}
#endif
#endif /* not POWERPC_85XX_SMP_H_ */

20
arch/powerpc/platforms/85xx/socrates.c
View file

@ -46,28 +46,12 @@
static void __init socrates_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");

22
arch/powerpc/platforms/85xx/stx_gp3.c
View file

@ -48,28 +48,10 @@
static void __init stx_gp3_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
mpc85xx_cpm2_pic_init();

22
arch/powerpc/platforms/85xx/tqm85xx.c
View file

@ -46,28 +46,10 @@
static void __init tqm85xx_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
mpc85xx_cpm2_pic_init();

28
arch/powerpc/platforms/85xx/xes_mpc85xx.c
View file

@ -32,6 +32,7 @@
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
#include "mpc85xx.h"
@ -42,29 +43,11 @@
void __init xes_mpc85xx_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
}
@ -138,9 +121,6 @@ static int primary_phb_addr;
/*
* Setup the architecture
*/
#ifdef CONFIG_SMP
extern void __init mpc85xx_smp_init(void);
#endif
static void __init xes_mpc85xx_setup_arch(void)
{
#ifdef CONFIG_PCI
@ -174,9 +154,7 @@ static void __init xes_mpc85xx_setup_arch(void)
}
#endif
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
}
machine_device_initcall(xes_mpc8572, mpc85xx_common_publish_devices);

18
arch/powerpc/platforms/86xx/pic.c
View file

@ -31,26 +31,16 @@ static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
void __init mpc86xx_init_irq(void)
{
struct mpic *mpic;
struct device_node *np;
struct resource res;
#ifdef CONFIG_PPC_I8259
struct device_node *np;
struct device_node *cascade_node = NULL;
int cascade_irq;
#endif
/* Determine PIC address. */
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL)
return;
of_address_to_resource(np, 0, &res);
mpic = mpic_alloc(np, res.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
struct mpic *mpic = mpic_alloc(NULL, 0,
MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
0, 256, " MPIC ");
of_node_put(np);
BUG_ON(mpic == NULL);
mpic_init(mpic);

25
arch/powerpc/platforms/cell/setup.c
View file

@ -184,24 +184,10 @@ static int __init cell_publish_devices(void)
}
machine_subsys_initcall(cell, cell_publish_devices);
static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct mpic *mpic = irq_desc_get_handler_data(desc);
unsigned int virq;
virq = mpic_get_one_irq(mpic);
if (virq != NO_IRQ)
generic_handle_irq(virq);
chip->irq_eoi(&desc->irq_data);
}
static void __init mpic_init_IRQ(void)
{
struct device_node *dn;
struct mpic *mpic;
unsigned int virq;
for (dn = NULL;
(dn = of_find_node_by_name(dn, "interrupt-controller"));) {
@ -211,19 +197,10 @@ static void __init mpic_init_IRQ(void)
/* The MPIC driver will get everything it needs from the
* device-tree, just pass 0 to all arguments
*/
mpic = mpic_alloc(dn, 0, 0, 0, 0, " MPIC ");
mpic = mpic_alloc(dn, 0, MPIC_SECONDARY, 0, 0, " MPIC ");
if (mpic == NULL)
continue;
mpic_init(mpic);
virq = irq_of_parse_and_map(dn, 0);
if (virq == NO_IRQ)
continue;
printk(KERN_INFO "%s : hooking up to IRQ %d\n",
dn->full_name, virq);
irq_set_handler_data(virq, mpic);
irq_set_chained_handler(virq, cell_mpic_cascade);
}
}

3
arch/powerpc/platforms/chrp/setup.c
View file

@ -435,8 +435,7 @@ static void __init chrp_find_openpic(void)
if (len > 1)
isu_size = iranges[3];
chrp_mpic = mpic_alloc(np, opaddr, MPIC_PRIMARY,
isu_size, 0, " MPIC ");
chrp_mpic = mpic_alloc(np, opaddr, 0, isu_size, 0, " MPIC ");
if (chrp_mpic == NULL) {
printk(KERN_ERR "Failed to allocate MPIC structure\n");
goto bail;

23
arch/powerpc/platforms/embedded6xx/holly.c
View file

@ -148,30 +148,14 @@ static void __init holly_setup_arch(void)
static void __init holly_init_IRQ(void)
{
struct mpic *mpic;
phys_addr_t mpic_paddr = 0;
struct device_node *tsi_pic;
#ifdef CONFIG_PCI
unsigned int cascade_pci_irq;
struct device_node *tsi_pci;
struct device_node *cascade_node = NULL;
#endif
tsi_pic = of_find_node_by_type(NULL, "open-pic");
if (tsi_pic) {
unsigned int size;
const void *prop = of_get_property(tsi_pic, "reg", &size);
mpic_paddr = of_translate_address(tsi_pic, prop);
}
if (mpic_paddr == 0) {
printk(KERN_ERR "%s: No tsi108 PIC found !\n", __func__);
return;
}
pr_debug("%s: tsi108 pic phys_addr = 0x%x\n", __func__, (u32) mpic_paddr);
mpic = mpic_alloc(tsi_pic, mpic_paddr,
MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
mpic = mpic_alloc(NULL, 0,
MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108,
24,
NR_IRQS-4, /* num_sources used */
@ -179,7 +163,7 @@ static void __init holly_init_IRQ(void)
BUG_ON(mpic == NULL);
mpic_assign_isu(mpic, 0, mpic_paddr + 0x100);
mpic_assign_isu(mpic, 0, mpic->paddr + 0x100);
mpic_init(mpic);
@ -204,7 +188,6 @@ static void __init holly_init_IRQ(void)
#endif
/* Configure MPIC outputs to CPU0 */
tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
of_node_put(tsi_pic);
}
void holly_show_cpuinfo(struct seq_file *m)

20
arch/powerpc/platforms/embedded6xx/linkstation.c
View file

@ -81,29 +81,19 @@ static void __init linkstation_setup_arch(void)
static void __init linkstation_init_IRQ(void)
{
struct mpic *mpic;
struct device_node *dnp;
const u32 *prop;
int size;
phys_addr_t paddr;
dnp = of_find_node_by_type(NULL, "open-pic");
if (dnp == NULL)
return;
prop = of_get_property(dnp, "reg", &size);
paddr = (phys_addr_t)of_translate_address(dnp, prop);
mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, 4, 32, " EPIC ");
mpic = mpic_alloc(NULL, 0, MPIC_WANTS_RESET,
4, 32, " EPIC ");
BUG_ON(mpic == NULL);
/* PCI IRQs */
mpic_assign_isu(mpic, 0, paddr + 0x10200);
mpic_assign_isu(mpic, 0, mpic->paddr + 0x10200);
/* I2C */
mpic_assign_isu(mpic, 1, paddr + 0x11000);
mpic_assign_isu(mpic, 1, mpic->paddr + 0x11000);
/* ttyS0, ttyS1 */
mpic_assign_isu(mpic, 2, paddr + 0x11100);
mpic_assign_isu(mpic, 2, mpic->paddr + 0x11100);
mpic_init(mpic);
}

24
arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
View file

@ -102,31 +102,14 @@ static void __init mpc7448_hpc2_setup_arch(void)
static void __init mpc7448_hpc2_init_IRQ(void)
{
struct mpic *mpic;
phys_addr_t mpic_paddr = 0;
struct device_node *tsi_pic;
#ifdef CONFIG_PCI
unsigned int cascade_pci_irq;
struct device_node *tsi_pci;
struct device_node *cascade_node = NULL;
#endif
tsi_pic = of_find_node_by_type(NULL, "open-pic");
if (tsi_pic) {
unsigned int size;
const void *prop = of_get_property(tsi_pic, "reg", &size);
mpic_paddr = of_translate_address(tsi_pic, prop);
}
if (mpic_paddr == 0) {
printk("%s: No tsi108 PIC found !\n", __func__);
return;
}
DBG("%s: tsi108 pic phys_addr = 0x%x\n", __func__,
(u32) mpic_paddr);
mpic = mpic_alloc(tsi_pic, mpic_paddr,
MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
mpic = mpic_alloc(NULL, 0,
MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108,
24,
NR_IRQS-4, /* num_sources used */
@ -134,7 +117,7 @@ static void __init mpc7448_hpc2_init_IRQ(void)
BUG_ON(mpic == NULL);
mpic_assign_isu(mpic, 0, mpic_paddr + 0x100);
mpic_assign_isu(mpic, 0, mpic->paddr + 0x100);
mpic_init(mpic);
@ -159,7 +142,6 @@ static void __init mpc7448_hpc2_init_IRQ(void)
#endif
/* Configure MPIC outputs to CPU0 */
tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
of_node_put(tsi_pic);
}
void mpc7448_hpc2_show_cpuinfo(struct seq_file *m)

24
arch/powerpc/platforms/embedded6xx/storcenter.c
View file

@ -83,35 +83,17 @@ static void __init storcenter_setup_arch(void)
static void __init storcenter_init_IRQ(void)
{
struct mpic *mpic;
struct device_node *dnp;
const void *prop;
int size;
phys_addr_t paddr;
dnp = of_find_node_by_type(NULL, "open-pic");
if (dnp == NULL)
return;
prop = of_get_property(dnp, "reg", &size);
if (prop == NULL) {
of_node_put(dnp);
return;
}
paddr = (phys_addr_t)of_translate_address(dnp, prop);
mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET,
mpic = mpic_alloc(NULL, 0, MPIC_WANTS_RESET,
16, 32, " OpenPIC ");
of_node_put(dnp);
BUG_ON(mpic == NULL);
/*
* 16 Serial Interrupts followed by 16 Internal Interrupts.
* I2C is the second internal, so it is at 17, 0x11020.
*/
mpic_assign_isu(mpic, 0, paddr + 0x10200);
mpic_assign_isu(mpic, 1, paddr + 0x11000);
mpic_assign_isu(mpic, 0, mpic->paddr + 0x10200);
mpic_assign_isu(mpic, 1, mpic->paddr + 0x11000);
mpic_init(mpic);
}

2
arch/powerpc/platforms/maple/setup.c
View file

@ -221,7 +221,7 @@ static void __init maple_init_IRQ(void)
unsigned long openpic_addr = 0;
int naddr, n, i, opplen, has_isus = 0;
struct mpic *mpic;
unsigned int flags = MPIC_PRIMARY;
unsigned int flags = 0;
/* Locate MPIC in the device-tree. Note that there is a bug
* in Maple device-tree where the type of the controller is

4
arch/powerpc/platforms/pasemi/setup.c
View file

@ -224,7 +224,7 @@ static __init void pas_init_IRQ(void)
openpic_addr = of_read_number(opprop, naddr);
printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
mpic_flags = MPIC_PRIMARY | MPIC_LARGE_VECTORS | MPIC_NO_BIAS;
mpic_flags = MPIC_LARGE_VECTORS | MPIC_NO_BIAS;
nmiprop = of_get_property(mpic_node, "nmi-source", NULL);
if (nmiprop)
@ -234,7 +234,7 @@ static __init void pas_init_IRQ(void)
mpic_flags, 0, 0, "PASEMI-OPIC");
BUG_ON(!mpic);
mpic_assign_isu(mpic, 0, openpic_addr + 0x10000);
mpic_assign_isu(mpic, 0, mpic->paddr + 0x10000);
mpic_init(mpic);
/* The NMI/MCK source needs to be prio 15 */
if (nmiprop) {

46
arch/powerpc/platforms/powermac/pic.c
View file

@ -464,18 +464,6 @@ int of_irq_map_oldworld(struct device_node *device, int index,
}
#endif /* CONFIG_PPC32 */
static void pmac_u3_cascade(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct mpic *mpic = irq_desc_get_handler_data(desc);
unsigned int cascade_irq = mpic_get_one_irq(mpic);
if (cascade_irq != NO_IRQ)
generic_handle_irq(cascade_irq);
chip->irq_eoi(&desc->irq_data);
}
static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic)
{
#if defined(CONFIG_XMON) && defined(CONFIG_PPC32)
@ -498,14 +486,8 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np,
int master)
{
const char *name = master ? " MPIC 1 " : " MPIC 2 ";
struct resource r;
struct mpic *mpic;
unsigned int flags = master ? MPIC_PRIMARY : 0;
int rc;
rc = of_address_to_resource(np, 0, &r);
if (rc)
return NULL;
unsigned int flags = master ? 0 : MPIC_SECONDARY;
pmac_call_feature(PMAC_FTR_ENABLE_MPIC, np, 0, 0);
@ -519,7 +501,7 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np,
if (master && (flags & MPIC_BIG_ENDIAN))
flags |= MPIC_U3_HT_IRQS;
mpic = mpic_alloc(np, r.start, flags, 0, 0, name);
mpic = mpic_alloc(np, 0, flags, 0, 0, name);
if (mpic == NULL)
return NULL;
@ -532,7 +514,6 @@ static int __init pmac_pic_probe_mpic(void)
{
struct mpic *mpic1, *mpic2;
struct device_node *np, *master = NULL, *slave = NULL;
unsigned int cascade;
/* We can have up to 2 MPICs cascaded */
for (np = NULL; (np = of_find_node_by_type(np, "open-pic"))
@ -568,27 +549,14 @@ static int __init pmac_pic_probe_mpic(void)
of_node_put(master);
/* No slave, let's go out */
if (slave == NULL)
return 0;
/* Get/Map slave interrupt */
cascade = irq_of_parse_and_map(slave, 0);
if (cascade == NO_IRQ) {
printk(KERN_ERR "Failed to map cascade IRQ\n");
return 0;
}
mpic2 = pmac_setup_one_mpic(slave, 0);
if (mpic2 == NULL) {
printk(KERN_ERR "Failed to setup slave MPIC\n");
/* Set up a cascaded controller, if present */
if (slave) {
mpic2 = pmac_setup_one_mpic(slave, 0);
if (mpic2 == NULL)
printk(KERN_ERR "Failed to setup slave MPIC\n");
of_node_put(slave);
return 0;
}
irq_set_handler_data(cascade, mpic2);
irq_set_chained_handler(cascade, pmac_u3_cascade);
of_node_put(slave);
return 0;
}

3
arch/powerpc/platforms/pseries/setup.c
View file

@ -192,8 +192,7 @@ static void __init pseries_mpic_init_IRQ(void)
BUG_ON(openpic_addr == 0);
/* Setup the openpic driver */
mpic = mpic_alloc(pSeries_mpic_node, openpic_addr,
MPIC_PRIMARY,
mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, 0,
16, 250, /* isu size, irq count */
" MPIC ");
BUG_ON(mpic == NULL);

199
arch/powerpc/sysdev/mpic.c
View file

@ -154,7 +154,7 @@ static inline unsigned int mpic_processor_id(struct mpic *mpic)
{
unsigned int cpu = 0;
if (mpic->flags & MPIC_PRIMARY)
if (!(mpic->flags & MPIC_SECONDARY))
cpu = hard_smp_processor_id();
return cpu;
@ -315,29 +315,25 @@ static void _mpic_map_mmio(struct mpic *mpic, phys_addr_t phys_addr,
}
#ifdef CONFIG_PPC_DCR
static void _mpic_map_dcr(struct mpic *mpic, struct device_node *node,
struct mpic_reg_bank *rb,
static void _mpic_map_dcr(struct mpic *mpic, struct mpic_reg_bank *rb,
unsigned int offset, unsigned int size)
{
const u32 *dbasep;
dbasep = of_get_property(node, "dcr-reg", NULL);
rb->dhost = dcr_map(node, *dbasep + offset, size);
phys_addr_t phys_addr = dcr_resource_start(mpic->node, 0);
rb->dhost = dcr_map(mpic->node, phys_addr + offset, size);
BUG_ON(!DCR_MAP_OK(rb->dhost));
}
static inline void mpic_map(struct mpic *mpic, struct device_node *node,
static inline void mpic_map(struct mpic *mpic,
phys_addr_t phys_addr, struct mpic_reg_bank *rb,
unsigned int offset, unsigned int size)
{
if (mpic->flags & MPIC_USES_DCR)
_mpic_map_dcr(mpic, node, rb, offset, size);
_mpic_map_dcr(mpic, rb, offset, size);
else
_mpic_map_mmio(mpic, phys_addr, rb, offset, size);
}
#else /* CONFIG_PPC_DCR */
#define mpic_map(m,n,p,b,o,s) _mpic_map_mmio(m,p,b,o,s)
#define mpic_map(m,p,b,o,s) _mpic_map_mmio(m,p,b,o,s)
#endif /* !CONFIG_PPC_DCR */
@ -990,7 +986,7 @@ static int mpic_host_map(struct irq_host *h, unsigned int virq,
#ifdef CONFIG_SMP
else if (hw >= mpic->ipi_vecs[0]) {
WARN_ON(!(mpic->flags & MPIC_PRIMARY));
WARN_ON(mpic->flags & MPIC_SECONDARY);
DBG("mpic: mapping as IPI\n");
irq_set_chip_data(virq, mpic);
@ -1001,7 +997,7 @@ static int mpic_host_map(struct irq_host *h, unsigned int virq,
#endif /* CONFIG_SMP */
if (hw >= mpic->timer_vecs[0] && hw <= mpic->timer_vecs[7]) {
WARN_ON(!(mpic->flags & MPIC_PRIMARY));
WARN_ON(mpic->flags & MPIC_SECONDARY);
DBG("mpic: mapping as timer\n");
irq_set_chip_data(virq, mpic);
@ -1115,17 +1111,28 @@ static int mpic_host_xlate(struct irq_host *h, struct device_node *ct,
return 0;
}
/* IRQ handler for a secondary MPIC cascaded from another IRQ controller */
static void mpic_cascade(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct mpic *mpic = irq_desc_get_handler_data(desc);
unsigned int virq;
BUG_ON(!(mpic->flags & MPIC_SECONDARY));
virq = mpic_get_one_irq(mpic);
if (virq != NO_IRQ)
generic_handle_irq(virq);
chip->irq_eoi(&desc->irq_data);
}
static struct irq_host_ops mpic_host_ops = {
.match = mpic_host_match,
.map = mpic_host_map,
.xlate = mpic_host_xlate,
};
static int mpic_reset_prohibited(struct device_node *node)
{
return node && of_get_property(node, "pic-no-reset", NULL);
}
/*
* Exported functions
*/
@ -1137,27 +1144,60 @@ struct mpic * __init mpic_alloc(struct device_node *node,
unsigned int irq_count,
const char *name)
{
struct mpic *mpic;
u32 greg_feature;
const char *vers;
int i;
int intvec_top;
u64 paddr = phys_addr;
int i, psize, intvec_top;
struct mpic *mpic;
u32 greg_feature;
const char *vers;
const u32 *psrc;
/* Default MPIC search parameters */
static const struct of_device_id __initconst mpic_device_id[] = {
{ .type = "open-pic", },
{ .compatible = "open-pic", },
{},
};
/*
* If we were not passed a device-tree node, then perform the default
* search for standardized a standardized OpenPIC.
*/
if (node) {
node = of_node_get(node);
} else {
node = of_find_matching_node(NULL, mpic_device_id);
if (!node)
return NULL;
}
/* Pick the physical address from the device tree if unspecified */
if (!phys_addr) {
/* Check if it is DCR-based */
if (of_get_property(node, "dcr-reg", NULL)) {
flags |= MPIC_USES_DCR;
} else {
struct resource r;
if (of_address_to_resource(node, 0, &r))
goto err_of_node_put;
phys_addr = r.start;
}
}
mpic = kzalloc(sizeof(struct mpic), GFP_KERNEL);
if (mpic == NULL)
return NULL;
goto err_of_node_put;
mpic->name = name;
mpic->node = node;
mpic->paddr = phys_addr;
mpic->hc_irq = mpic_irq_chip;
mpic->hc_irq.name = name;
if (flags & MPIC_PRIMARY)
if (!(flags & MPIC_SECONDARY))
mpic->hc_irq.irq_set_affinity = mpic_set_affinity;
#ifdef CONFIG_MPIC_U3_HT_IRQS
mpic->hc_ht_irq = mpic_irq_ht_chip;
mpic->hc_ht_irq.name = name;
if (flags & MPIC_PRIMARY)
if (!(flags & MPIC_SECONDARY))
mpic->hc_ht_irq.irq_set_affinity = mpic_set_affinity;
#endif /* CONFIG_MPIC_U3_HT_IRQS */
@ -1194,28 +1234,22 @@ struct mpic * __init mpic_alloc(struct device_node *node,
mpic->spurious_vec = intvec_top;
/* Check for "big-endian" in device-tree */
if (node && of_get_property(node, "big-endian", NULL) != NULL)
if (of_get_property(mpic->node, "big-endian", NULL) != NULL)
mpic->flags |= MPIC_BIG_ENDIAN;
if (node && of_device_is_compatible(node, "fsl,mpic"))
if (of_device_is_compatible(mpic->node, "fsl,mpic"))
mpic->flags |= MPIC_FSL;
/* Look for protected sources */
if (node) {
int psize;
unsigned int bits, mapsize;
const u32 *psrc =
of_get_property(node, "protected-sources", &psize);
if (psrc) {
psize /= 4;
bits = intvec_top + 1;
mapsize = BITS_TO_LONGS(bits) * sizeof(unsigned long);
mpic->protected = kzalloc(mapsize, GFP_KERNEL);
BUG_ON(mpic->protected == NULL);
for (i = 0; i < psize; i++) {
if (psrc[i] > intvec_top)
continue;
__set_bit(psrc[i], mpic->protected);
}
psrc = of_get_property(mpic->node, "protected-sources", &psize);
if (psrc) {
/* Allocate a bitmap with one bit per interrupt */
unsigned int mapsize = BITS_TO_LONGS(intvec_top + 1);
mpic->protected = kzalloc(mapsize*sizeof(long), GFP_KERNEL);
BUG_ON(mpic->protected == NULL);
for (i = 0; i < psize/sizeof(u32); i++) {
if (psrc[i] > intvec_top)
continue;
__set_bit(psrc[i], mpic->protected);
}
}
@ -1224,42 +1258,32 @@ struct mpic * __init mpic_alloc(struct device_node *node,
#endif
/* default register type */
mpic->reg_type = (flags & MPIC_BIG_ENDIAN) ?
mpic_access_mmio_be : mpic_access_mmio_le;
if (flags & MPIC_BIG_ENDIAN)
mpic->reg_type = mpic_access_mmio_be;
else
mpic->reg_type = mpic_access_mmio_le;
/* If no physical address is passed in, a device-node is mandatory */
BUG_ON(paddr == 0 && node == NULL);
/* If no physical address passed in, check if it's dcr based */
if (paddr == 0 && of_get_property(node, "dcr-reg", NULL) != NULL) {
/*
* An MPIC with a "dcr-reg" property must be accessed that way, but
* only if the kernel includes DCR support.
*/
#ifdef CONFIG_PPC_DCR
mpic->flags |= MPIC_USES_DCR;
if (flags & MPIC_USES_DCR)
mpic->reg_type = mpic_access_dcr;
#else
BUG();
#endif /* CONFIG_PPC_DCR */
}
/* If the MPIC is not DCR based, and no physical address was passed
* in, try to obtain one
*/
if (paddr == 0 && !(mpic->flags & MPIC_USES_DCR)) {
const u32 *reg = of_get_property(node, "reg", NULL);
BUG_ON(reg == NULL);
paddr = of_translate_address(node, reg);
BUG_ON(paddr == OF_BAD_ADDR);
}
BUG_ON(flags & MPIC_USES_DCR);
#endif
/* Map the global registers */
mpic_map(mpic, node, paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000);
mpic_map(mpic, node, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000);
mpic_map(mpic, mpic->paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000);
mpic_map(mpic, mpic->paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000);
/* Reset */
/* When using a device-node, reset requests are only honored if the MPIC
* is allowed to reset.
*/
if (mpic_reset_prohibited(node))
if (of_get_property(mpic->node, "pic-no-reset", NULL))
mpic->flags |= MPIC_NO_RESET;
if ((flags & MPIC_WANTS_RESET) && !(mpic->flags & MPIC_NO_RESET)) {
@ -1307,7 +1331,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
for_each_possible_cpu(i) {
unsigned int cpu = get_hard_smp_processor_id(i);
mpic_map(mpic, node, paddr, &mpic->cpuregs[cpu],
mpic_map(mpic, mpic->paddr, &mpic->cpuregs[cpu],
MPIC_INFO(CPU_BASE) + cpu * MPIC_INFO(CPU_STRIDE),
0x1000);
}
@ -1315,16 +1339,21 @@ struct mpic * __init mpic_alloc(struct device_node *node,
/* Initialize main ISU if none provided */
if (mpic->isu_size == 0) {
mpic->isu_size = mpic->num_sources;
mpic_map(mpic, node, paddr, &mpic->isus[0],
mpic_map(mpic, mpic->paddr, &mpic->isus[0],
MPIC_INFO(IRQ_BASE), MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
}
mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1);
mpic->isu_mask = (1 << mpic->isu_shift) - 1;
mpic->irqhost = irq_alloc_host(node, IRQ_HOST_MAP_LINEAR,
mpic->irqhost = irq_alloc_host(mpic->node, IRQ_HOST_MAP_LINEAR,
isu_size ? isu_size : mpic->num_sources,
&mpic_host_ops,
flags & MPIC_LARGE_VECTORS ? 2048 : 256);
/*
* FIXME: The code leaks the MPIC object and mappings here; this
* is very unlikely to fail but it ought to be fixed anyways.
*/
if (mpic->irqhost == NULL)
return NULL;
@ -1347,19 +1376,23 @@ struct mpic * __init mpic_alloc(struct device_node *node,
}
printk(KERN_INFO "mpic: Setting up MPIC \"%s\" version %s at %llx,"
" max %d CPUs\n",
name, vers, (unsigned long long)paddr, num_possible_cpus());
name, vers, (unsigned long long)mpic->paddr, num_possible_cpus());
printk(KERN_INFO "mpic: ISU size: %d, shift: %d, mask: %x\n",
mpic->isu_size, mpic->isu_shift, mpic->isu_mask);
mpic->next = mpics;
mpics = mpic;
if (flags & MPIC_PRIMARY) {
if (!(flags & MPIC_SECONDARY)) {
mpic_primary = mpic;
irq_set_default_host(mpic->irqhost);
}
return mpic;
err_of_node_put:
of_node_put(node);
return NULL;
}
void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
@ -1369,7 +1402,7 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
BUG_ON(isu_num >= MPIC_MAX_ISU);
mpic_map(mpic, mpic->irqhost->of_node,
mpic_map(mpic,
paddr, &mpic->isus[isu_num], 0,
MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
@ -1385,8 +1418,7 @@ void __init mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count)
void __init mpic_init(struct mpic *mpic)
{
int i;
int cpu;
int i, cpu;
BUG_ON(mpic->num_sources == 0);
@ -1424,7 +1456,7 @@ void __init mpic_init(struct mpic *mpic)
/* Do the HT PIC fixups on U3 broken mpic */
DBG("MPIC flags: %x\n", mpic->flags);
if ((mpic->flags & MPIC_U3_HT_IRQS) && (mpic->flags & MPIC_PRIMARY)) {
if ((mpic->flags & MPIC_U3_HT_IRQS) && !(mpic->flags & MPIC_SECONDARY)) {
mpic_scan_ht_pics(mpic);
mpic_u3msi_init(mpic);
}
@ -1471,6 +1503,17 @@ void __init mpic_init(struct mpic *mpic)
GFP_KERNEL);
BUG_ON(mpic->save_data == NULL);
#endif
/* Check if this MPIC is chained from a parent interrupt controller */
if (mpic->flags & MPIC_SECONDARY) {
int virq = irq_of_parse_and_map(mpic->node, 0);
if (virq != NO_IRQ) {
printk(KERN_INFO "%s: hooking up to IRQ %d\n",
mpic->node->full_name, virq);
irq_set_handler_data(virq, mpic);
irq_set_chained_handler(virq, &mpic_cascade);
}
}
}
void __init mpic_set_clk_ratio(struct mpic *mpic, u32 clock_ratio)