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Diffstat (limited to 'arch/powerpc/platforms/cell/spider-pic.c')
-rw-r--r--arch/powerpc/platforms/cell/spider-pic.c138
1 files changed, 59 insertions, 79 deletions
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 742a03282b4..1f72f4ab635 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -62,16 +62,15 @@ enum {
#define SPIDER_IRQ_INVALID 63
struct spider_pic {
- struct irq_host *host;
- struct device_node *of_node;
+ struct irq_domain *host;
void __iomem *regs;
unsigned int node_id;
};
static struct spider_pic spider_pics[SPIDER_CHIP_COUNT];
-static struct spider_pic *spider_virq_to_pic(unsigned int virq)
+static struct spider_pic *spider_irq_data_to_pic(struct irq_data *d)
{
- return irq_map[virq].host->host_data;
+ return irq_data_get_irq_chip_data(d);
}
static void __iomem *spider_get_irq_config(struct spider_pic *pic,
@@ -80,30 +79,30 @@ static void __iomem *spider_get_irq_config(struct spider_pic *pic,
return pic->regs + TIR_CFGA + 8 * src;
}
-static void spider_unmask_irq(unsigned int virq)
+static void spider_unmask_irq(struct irq_data *d)
{
- struct spider_pic *pic = spider_virq_to_pic(virq);
- void __iomem *cfg = spider_get_irq_config(pic, irq_map[virq].hwirq);
+ struct spider_pic *pic = spider_irq_data_to_pic(d);
+ void __iomem *cfg = spider_get_irq_config(pic, irqd_to_hwirq(d));
out_be32(cfg, in_be32(cfg) | 0x30000000u);
}
-static void spider_mask_irq(unsigned int virq)
+static void spider_mask_irq(struct irq_data *d)
{
- struct spider_pic *pic = spider_virq_to_pic(virq);
- void __iomem *cfg = spider_get_irq_config(pic, irq_map[virq].hwirq);
+ struct spider_pic *pic = spider_irq_data_to_pic(d);
+ void __iomem *cfg = spider_get_irq_config(pic, irqd_to_hwirq(d));
out_be32(cfg, in_be32(cfg) & ~0x30000000u);
}
-static void spider_ack_irq(unsigned int virq)
+static void spider_ack_irq(struct irq_data *d)
{
- struct spider_pic *pic = spider_virq_to_pic(virq);
- unsigned int src = irq_map[virq].hwirq;
+ struct spider_pic *pic = spider_irq_data_to_pic(d);
+ unsigned int src = irqd_to_hwirq(d);
/* Reset edge detection logic if necessary
*/
- if (get_irq_desc(virq)->status & IRQ_LEVEL)
+ if (irqd_is_level_type(d))
return;
/* Only interrupts 47 to 50 can be set to edge */
@@ -114,13 +113,12 @@ static void spider_ack_irq(unsigned int virq)
out_be32(pic->regs + TIR_EDC, 0x100 | (src & 0xf));
}
-static int spider_set_irq_type(unsigned int virq, unsigned int type)
+static int spider_set_irq_type(struct irq_data *d, unsigned int type)
{
unsigned int sense = type & IRQ_TYPE_SENSE_MASK;
- struct spider_pic *pic = spider_virq_to_pic(virq);
- unsigned int hw = irq_map[virq].hwirq;
+ struct spider_pic *pic = spider_irq_data_to_pic(d);
+ unsigned int hw = irqd_to_hwirq(d);
void __iomem *cfg = spider_get_irq_config(pic, hw);
- struct irq_desc *desc = get_irq_desc(virq);
u32 old_mask;
u32 ic;
@@ -148,15 +146,9 @@ static int spider_set_irq_type(unsigned int virq, unsigned int type)
return -EINVAL;
}
- /* Update irq_desc */
- desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
- desc->status |= type & IRQ_TYPE_SENSE_MASK;
- if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
- desc->status |= IRQ_LEVEL;
-
/* Configure the source. One gross hack that was there before and
* that I've kept around is the priority to the BE which I set to
- * be the same as the interrupt source number. I don't know wether
+ * be the same as the interrupt source number. I don't know whether
* that's supposed to make any kind of sense however, we'll have to
* decide that, but for now, I'm not changing the behaviour.
*/
@@ -169,32 +161,27 @@ static int spider_set_irq_type(unsigned int virq, unsigned int type)
}
static struct irq_chip spider_pic = {
- .typename = " SPIDER ",
- .unmask = spider_unmask_irq,
- .mask = spider_mask_irq,
- .ack = spider_ack_irq,
- .set_type = spider_set_irq_type,
+ .name = "SPIDER",
+ .irq_unmask = spider_unmask_irq,
+ .irq_mask = spider_mask_irq,
+ .irq_ack = spider_ack_irq,
+ .irq_set_type = spider_set_irq_type,
};
-static int spider_host_match(struct irq_host *h, struct device_node *node)
-{
- struct spider_pic *pic = h->host_data;
- return node == pic->of_node;
-}
-
-static int spider_host_map(struct irq_host *h, unsigned int virq,
+static int spider_host_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
- set_irq_chip_and_handler(virq, &spider_pic, handle_level_irq);
+ irq_set_chip_data(virq, h->host_data);
+ irq_set_chip_and_handler(virq, &spider_pic, handle_level_irq);
/* Set default irq type */
- set_irq_type(virq, IRQ_TYPE_NONE);
+ irq_set_irq_type(virq, IRQ_TYPE_NONE);
return 0;
}
-static int spider_host_xlate(struct irq_host *h, struct device_node *ct,
- u32 *intspec, unsigned int intsize,
+static int spider_host_xlate(struct irq_domain *h, struct device_node *ct,
+ const u32 *intspec, unsigned int intsize,
irq_hw_number_t *out_hwirq, unsigned int *out_flags)
{
@@ -207,16 +194,15 @@ static int spider_host_xlate(struct irq_host *h, struct device_node *ct,
return 0;
}
-static struct irq_host_ops spider_host_ops = {
- .match = spider_host_match,
+static const struct irq_domain_ops spider_host_ops = {
.map = spider_host_map,
.xlate = spider_host_xlate,
};
-static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc,
- struct pt_regs *regs)
+static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc)
{
- struct spider_pic *pic = desc->handler_data;
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct spider_pic *pic = irq_desc_get_handler_data(desc);
unsigned int cs, virq;
cs = in_be32(pic->regs + TIR_CS) >> 24;
@@ -224,15 +210,17 @@ static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc,
virq = NO_IRQ;
else
virq = irq_linear_revmap(pic->host, cs);
+
if (virq != NO_IRQ)
- generic_handle_irq(virq, regs);
- desc->chip->eoi(irq);
+ generic_handle_irq(virq);
+
+ chip->irq_eoi(&desc->irq_data);
}
/* For hooking up the cascace we have a problem. Our device-tree is
* crap and we don't know on which BE iic interrupt we are hooked on at
* least not the "standard" way. We can reconstitute it based on two
- * informations though: which BE node we are connected to and wether
+ * informations though: which BE node we are connected to and whether
* we are connected to IOIF0 or IOIF1. Right now, we really only care
* about the IBM cell blade and we know that its firmware gives us an
* interrupt-map property which is pretty strange.
@@ -243,40 +231,36 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
const u32 *imap, *tmp;
int imaplen, intsize, unit;
struct device_node *iic;
- struct irq_host *iic_host;
-#if 0 /* Enable that when we have a way to retreive the node as well */
- /* First, we check wether we have a real "interrupts" in the device
+ /* First, we check whether we have a real "interrupts" in the device
* tree in case the device-tree is ever fixed
*/
- struct of_irq oirq;
- if (of_irq_map_one(pic->of_node, 0, &oirq) == 0) {
- virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
- oirq.size);
- goto bail;
- }
-#endif
+ virq = irq_of_parse_and_map(pic->host->of_node, 0);
+ if (virq)
+ return virq;
/* Now do the horrible hacks */
- tmp = get_property(pic->of_node, "#interrupt-cells", NULL);
+ tmp = of_get_property(pic->host->of_node, "#interrupt-cells", NULL);
if (tmp == NULL)
return NO_IRQ;
intsize = *tmp;
- imap = get_property(pic->of_node, "interrupt-map", &imaplen);
+ imap = of_get_property(pic->host->of_node, "interrupt-map", &imaplen);
if (imap == NULL || imaplen < (intsize + 1))
return NO_IRQ;
iic = of_find_node_by_phandle(imap[intsize]);
if (iic == NULL)
return NO_IRQ;
imap += intsize + 1;
- tmp = get_property(iic, "#interrupt-cells", NULL);
- if (tmp == NULL)
+ tmp = of_get_property(iic, "#interrupt-cells", NULL);
+ if (tmp == NULL) {
+ of_node_put(iic);
return NO_IRQ;
+ }
intsize = *tmp;
/* Assume unit is last entry of interrupt specifier */
unit = imap[intsize - 1];
/* Ok, we have a unit, now let's try to get the node */
- tmp = get_property(iic, "ibm,interrupt-server-ranges", NULL);
+ tmp = of_get_property(iic, "ibm,interrupt-server-ranges", NULL);
if (tmp == NULL) {
of_node_put(iic);
return NO_IRQ;
@@ -289,11 +273,11 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
* the iic host from the iic OF node, but that way I'm still compatible
* with really really old old firmwares for which we don't have a node
*/
- iic_host = iic_get_irq_host(pic->node_id);
- if (iic_host == NULL)
- return NO_IRQ;
/* Manufacture an IIC interrupt number of class 2 */
- virq = irq_create_mapping(iic_host, 0x20 | unit);
+ virq = irq_create_mapping(NULL,
+ (pic->node_id << IIC_IRQ_NODE_SHIFT) |
+ (2 << IIC_IRQ_CLASS_SHIFT) |
+ unit);
if (virq == NO_IRQ)
printk(KERN_ERR "spider_pic: failed to map cascade !");
return virq;
@@ -312,14 +296,10 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
panic("spider_pic: can't map registers !");
/* Allocate a host */
- pic->host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, SPIDER_SRC_COUNT,
- &spider_host_ops, SPIDER_IRQ_INVALID);
+ pic->host = irq_domain_add_linear(of_node, SPIDER_SRC_COUNT,
+ &spider_host_ops, pic);
if (pic->host == NULL)
panic("spider_pic: can't allocate irq host !");
- pic->host->host_data = pic;
-
- /* Fill out other bits */
- pic->of_node = of_node_get(of_node);
/* Go through all sources and disable them */
for (i = 0; i < SPIDER_SRC_COUNT; i++) {
@@ -337,8 +317,8 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
virq = spider_find_cascade_and_node(pic);
if (virq == NO_IRQ)
return;
- set_irq_data(virq, pic);
- set_irq_chained_handler(virq, spider_irq_cascade);
+ irq_set_handler_data(virq, pic);
+ irq_set_chained_handler(virq, spider_irq_cascade);
printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %s\n",
pic->node_id, addr, of_node->full_name);
@@ -362,15 +342,15 @@ void __init spider_init_IRQ(void)
*/
for (dn = NULL;
(dn = of_find_node_by_name(dn, "interrupt-controller"));) {
- if (device_is_compatible(dn, "CBEA,platform-spider-pic")) {
+ if (of_device_is_compatible(dn, "CBEA,platform-spider-pic")) {
if (of_address_to_resource(dn, 0, &r)) {
printk(KERN_WARNING "spider-pic: Failed\n");
continue;
}
- } else if (device_is_compatible(dn, "sti,platform-spider-pic")
+ } else if (of_device_is_compatible(dn, "sti,platform-spider-pic")
&& (chip < 2)) {
static long hard_coded_pics[] =
- { 0x24000008000, 0x34000008000 };
+ { 0x24000008000ul, 0x34000008000ul};
r.start = hard_coded_pics[chip];
} else
continue;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-14 23:27:25 +0000