src/soc/intel/common/block/include/intelblocks/itss.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef SOC_INTEL_COMMON_BLOCK_ITSS_H
   4 #define SOC_INTEL_COMMON_BLOCK_ITSS_H
   5
   6 #define ITSS_MAX_IRQ    119
   7 #define IRQS_PER_IPC    32
   8 #define NUM_IPC_REGS    ((ITSS_MAX_IRQ + IRQS_PER_IPC - 1)/IRQS_PER_IPC)
   9
  10 /* PIRQA Routing Control Register */
  11 #define PCR_ITSS_PIRQA_ROUT     0x3100
  12 /* PIRQB Routing Control Register */
  13 #define PCR_ITSS_PIRQB_ROUT     0x3101
  14 /* PIRQC Routing Control Register */
  15 #define PCR_ITSS_PIRQC_ROUT     0x3102
  16 /* PIRQD Routing Control Register */
  17 #define PCR_ITSS_PIRQD_ROUT     0x3103
  18 /* PIRQE Routing Control Register */
  19 #define PCR_ITSS_PIRQE_ROUT     0x3104
  20 /* PIRQF Routing Control Register */
  21 #define PCR_ITSS_PIRQF_ROUT     0x3105
  22 /* PIRQG Routing Control Register */
  23 #define PCR_ITSS_PIRQG_ROUT     0x3106
  24 /* PIRQH Routing Control Register */
  25 #define PCR_ITSS_PIRQH_ROUT     0x3107
  26 /* ITSS Interrupt Route */
  27 #define PCR_ITSS_PIR    0x3140
  28 #define PCI_ITSS_PIR(i) (PCR_ITSS_PIR + (i) * 2)
  29 /* ITSS Interrupt polarity control */
  30 #define PCR_ITSS_IPC0_CONF      0x3200
  31 /* ITSS Power reduction control */
  32 #define PCR_ITSS_ITSSPRC        0x3300
  33
  34 #if !defined(__ACPI__)
  35
  36 #include <device/device.h>
  37 #include <southbridge/intel/common/acpi_pirq_gen.h>
  38 #include <stdint.h>
  39
  40 /* Set the interrupt polarity for provided IRQ to the APIC. */
  41 void itss_set_irq_polarity(int irq, int active_low);
  42
  43 /* Snapshot and restore IRQ polarity settings for the inclusive range. */
  44 void itss_snapshot_irq_polarities(int start, int end);
  45 void itss_restore_irq_polarities(int start, int end);
  46
  47 void itss_irq_init(const uint8_t pch_interrupt_routing[PIRQ_COUNT]);
  48 void itss_clock_gate_8254(void);
  49
  50 /* SoC implementation to return corresponding PIR register offset. */
  51 uint32_t itss_soc_get_on_chip_dev_pir(const struct device *dev);
  52
  53 /* Return which PIRQx the device's INTx is connected to. */
  54 enum pirq itss_get_on_chip_dev_pirq(const struct device *dev, enum pci_pin pin);
  55
  56 #endif /* !defined(__ACPI__) */
  57
  58 #endif /* SOC_INTEL_COMMON_BLOCK_ITSS_H */