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[PATCH v8 04/29] hw/isa/piix3: Resolve redundant PIIX_NUM_PIC_IRQS
From: |
Bernhard Beschow |
Subject: |
[PATCH v8 04/29] hw/isa/piix3: Resolve redundant PIIX_NUM_PIC_IRQS |
Date: |
Sat, 7 Oct 2023 14:38:12 +0200 |
PIIX_NUM_PIC_IRQS is assumed to be the same as ISA_NUM_IRQS, otherwise
inconsistencies can occur.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
---
include/hw/southbridge/piix.h | 5 ++---
hw/isa/piix3.c | 8 ++++----
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/include/hw/southbridge/piix.h b/include/hw/southbridge/piix.h
index 278171752f..2317bb7974 100644
--- a/include/hw/southbridge/piix.h
+++ b/include/hw/southbridge/piix.h
@@ -27,7 +27,6 @@
*/
#define PIIX_RCR_IOPORT 0xcf9
-#define PIIX_NUM_PIC_IRQS 16 /* i8259 * 2 */
#define PIIX_NUM_PIRQS 4ULL /* PIRQ[A-D] */
struct PIIXState {
@@ -39,10 +38,10 @@ struct PIIXState {
* So one PIC level is tracked by PIIX_NUM_PIRQS bits.
*
* PIRQ is mapped to PIC pins, we track it by
- * PIIX_NUM_PIRQS * PIIX_NUM_PIC_IRQS = 64 bits with
+ * PIIX_NUM_PIRQS * ISA_NUM_IRQS = 64 bits with
* pic_irq * PIIX_NUM_PIRQS + pirq
*/
-#if PIIX_NUM_PIC_IRQS * PIIX_NUM_PIRQS > 64
+#if ISA_NUM_IRQS * PIIX_NUM_PIRQS > 64
#error "unable to encode pic state in 64bit in pic_levels."
#endif
uint64_t pic_levels;
diff --git a/hw/isa/piix3.c b/hw/isa/piix3.c
index 117024e450..7240c91440 100644
--- a/hw/isa/piix3.c
+++ b/hw/isa/piix3.c
@@ -48,7 +48,7 @@ static void piix3_set_irq_level_internal(PIIX3State *piix3,
int pirq, int level)
uint64_t mask;
pic_irq = piix3->dev.config[PIIX_PIRQCA + pirq];
- if (pic_irq >= PIIX_NUM_PIC_IRQS) {
+ if (pic_irq >= ISA_NUM_IRQS) {
return;
}
@@ -62,7 +62,7 @@ static void piix3_set_irq_level(PIIX3State *piix3, int pirq,
int level)
int pic_irq;
pic_irq = piix3->dev.config[PIIX_PIRQCA + pirq];
- if (pic_irq >= PIIX_NUM_PIC_IRQS) {
+ if (pic_irq >= ISA_NUM_IRQS) {
return;
}
@@ -83,7 +83,7 @@ static PCIINTxRoute piix3_route_intx_pin_to_irq(void *opaque,
int pin)
int irq = piix3->dev.config[PIIX_PIRQCA + pin];
PCIINTxRoute route;
- if (irq < PIIX_NUM_PIC_IRQS) {
+ if (irq < ISA_NUM_IRQS) {
route.mode = PCI_INTX_ENABLED;
route.irq = irq;
} else {
@@ -115,7 +115,7 @@ static void piix3_write_config(PCIDevice *dev,
pci_bus_fire_intx_routing_notifier(pci_get_bus(&piix3->dev));
piix3_update_irq_levels(piix3);
- for (pic_irq = 0; pic_irq < PIIX_NUM_PIC_IRQS; pic_irq++) {
+ for (pic_irq = 0; pic_irq < ISA_NUM_IRQS; pic_irq++) {
piix3_set_irq_pic(piix3, pic_irq);
}
}
--
2.42.0
- [PATCH v8 01/29] hw/i386/pc: Merge two if statements into one, (continued)
- [PATCH v8 01/29] hw/i386/pc: Merge two if statements into one, Bernhard Beschow, 2023/10/07
- [PATCH v8 02/29] hw/i386/pc_piix: Allow for setting properties before realizing PIIX3 south bridge, Bernhard Beschow, 2023/10/07
- [PATCH v8 03/29] hw/i386/pc_piix: Assign PIIX3's ISA interrupts before its realize(), Bernhard Beschow, 2023/10/07
- [PATCH v8 05/29] hw/i386/pc_piix: Wire PIIX3's ISA interrupts by new "isa-irqs" property, Bernhard Beschow, 2023/10/07
- [PATCH v8 06/29] hw/i386/pc_piix: Remove redundant "piix3" variable, Bernhard Beschow, 2023/10/07
- [PATCH v8 07/29] hw/isa/piix3: Rename "pic" attribute to "isa_irqs_in", Bernhard Beschow, 2023/10/07
- [PATCH v8 08/29] hw/i386/pc_q35: Wire ICH9 LPC function's interrupts before its realize(), Bernhard Beschow, 2023/10/07
- [PATCH v8 09/29] hw/isa/piix3: Wire PIC IRQs to ISA bus in host device, Bernhard Beschow, 2023/10/07
- [PATCH v8 11/29] hw/isa/piix3: Create IDE controller in host device, Bernhard Beschow, 2023/10/07
- [PATCH v8 10/29] hw/i386/pc: Wire RTC ISA IRQs in south bridges, Bernhard Beschow, 2023/10/07
- [PATCH v8 04/29] hw/isa/piix3: Resolve redundant PIIX_NUM_PIC_IRQS,
Bernhard Beschow <=
- [PATCH v8 18/29] hw/isa/piix4: Reuse struct PIIXState from PIIX3, Bernhard Beschow, 2023/10/07
- [PATCH v8 14/29] hw/isa/piix3: Drop the "3" from PIIX base class name, Bernhard Beschow, 2023/10/07
- [PATCH v8 13/29] hw/isa/piix3: Create power management controller in host device, Bernhard Beschow, 2023/10/07
- [PATCH v8 21/29] hw/isa/piix: Allow for optional PIT creation in PIIX3, Bernhard Beschow, 2023/10/07
- [PATCH v8 16/29] hw/isa/piix4: Rename "isa" attribute to "isa_irqs_in", Bernhard Beschow, 2023/10/07
- [PATCH v8 23/29] hw/isa/piix: Share PIIX3's base class with PIIX4, Bernhard Beschow, 2023/10/07
- [PATCH v8 24/29] hw/isa/piix: Reuse PIIX3 base class' realize method in PIIX4, Bernhard Beschow, 2023/10/07
- [PATCH v8 25/29] hw/isa/piix: Rename functions to be shared for PCI interrupt triggering, Bernhard Beschow, 2023/10/07
- [PATCH v8 12/29] hw/isa/piix3: Create USB controller in host device, Bernhard Beschow, 2023/10/07
- [PATCH v8 26/29] hw/isa/piix: Reuse PIIX3's PCI interrupt triggering in PIIX4, Bernhard Beschow, 2023/10/07