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

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifndef SOC_INTEL_COMMON_BLOCK_ITSS_H
  16 #define SOC_INTEL_COMMON_BLOCK_ITSS_H
  17
  18 /* Max PXRC registers in ITSS*/
  19 #define MAX_PXRC_CONFIG (PCR_ITSS_PIRQH_ROUT - PCR_ITSS_PIRQA_ROUT + 1)
  20
  21 /* PIRQA Routing Control Register*/
  22 #define PCR_ITSS_PIRQA_ROUT     0x3100
  23 /* PIRQB Routing Control Register*/
  24 #define PCR_ITSS_PIRQB_ROUT     0x3101
  25 /* PIRQC Routing Control Register*/
  26 #define PCR_ITSS_PIRQC_ROUT     0x3102
  27 /* PIRQD Routing Control Register*/
  28 #define PCR_ITSS_PIRQD_ROUT     0x3103
  29 /* PIRQE Routing Control Register*/
  30 #define PCR_ITSS_PIRQE_ROUT     0x3104
  31 /* PIRQF Routing Control Register*/
  32 #define PCR_ITSS_PIRQF_ROUT     0x3105
  33 /* PIRQG Routing Control Register*/
  34 #define PCR_ITSS_PIRQG_ROUT     0x3106
  35 /* PIRQH Routing Control Register*/
  36 #define PCR_ITSS_PIRQH_ROUT     0x3107
  37 /* ITSS Interrupt polarity control*/
  38 #define PCR_ITSS_IPC0_CONF      0x3200
  39 /* ITSS Power reduction control */
  40 #define PCR_ITSS_ITSSPRC        0x3300
  41
  42 #if !defined(__ACPI__)
  43
  44 #include <stdint.h>
  45
  46 /* Set the interrupt polarity for provided IRQ to the APIC. */
  47 void itss_set_irq_polarity(int irq, int active_low);
  48
  49 /* Snapshot and restore IRQ polarity settings for the inclusive range. */
  50 void itss_snapshot_irq_polarities(int start, int end);
  51 void itss_restore_irq_polarities(int start, int end);
  52
  53 void itss_irq_init(uint8_t pch_interrupt_routing[MAX_PXRC_CONFIG]);
  54 void itss_clock_gate_8254(void);
  55
  56 #endif /* !defined(__ACPI__) */
  57
  58 #endif /* SOC_INTEL_COMMON_BLOCK_ITSS_H */