LXR linux/drivers/misc/mei/hw-txe.h

   1/*
   2 *
   3 * Intel Management Engine Interface (Intel MEI) Linux driver
   4 * Copyright (c) 2013-2014, Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 */
  16
  17#ifndef _MEI_HW_TXE_H_
  18#define _MEI_HW_TXE_H_
  19
  20#include <linux/irqreturn.h>
  21
  22#include "hw.h"
  23#include "hw-txe-regs.h"
  24
  25#define MEI_TXI_RPM_TIMEOUT    500 /* ms */
  26
  27/* Flatten Hierarchy interrupt cause */
  28#define TXE_INTR_READINESS_BIT  0 /* HISR_INT_0_STS */
  29#define TXE_INTR_READINESS      HISR_INT_0_STS
  30#define TXE_INTR_ALIVENESS_BIT  1 /* HISR_INT_1_STS */
  31#define TXE_INTR_ALIVENESS      HISR_INT_1_STS
  32#define TXE_INTR_OUT_DB_BIT     2 /* HISR_INT_2_STS */
  33#define TXE_INTR_OUT_DB         HISR_INT_2_STS
  34#define TXE_INTR_IN_READY_BIT   8 /* beyond HISR */
  35#define TXE_INTR_IN_READY       BIT(8)
  36
  37/**
  38 * struct mei_txe_hw - txe hardware specifics
  39 *
  40 * @mem_addr:            SeC and BRIDGE bars
  41 * @aliveness:           aliveness (power gating) state of the hardware
  42 * @readiness:           readiness state of the hardware
  43 * @slots:               number of empty slots
  44 * @wait_aliveness_resp: aliveness wait queue
  45 * @intr_cause:          translated interrupt cause
  46 */
  47struct mei_txe_hw {
  48        void __iomem * const *mem_addr;
  49        u32 aliveness;
  50        u32 readiness;
  51        u32 slots;
  52
  53        wait_queue_head_t wait_aliveness_resp;
  54
  55        unsigned long intr_cause;
  56};
  57
  58#define to_txe_hw(dev) (struct mei_txe_hw *)((dev)->hw)
  59
  60static inline struct mei_device *hw_txe_to_mei(struct mei_txe_hw *hw)
  61{
  62        return container_of((void *)hw, struct mei_device, hw);
  63}
  64
  65struct mei_device *mei_txe_dev_init(struct pci_dev *pdev);
  66
  67irqreturn_t mei_txe_irq_quick_handler(int irq, void *dev_id);
  68irqreturn_t mei_txe_irq_thread_handler(int irq, void *dev_id);
  69
  70int mei_txe_aliveness_set_sync(struct mei_device *dev, u32 req);
  71
  72int mei_txe_setup_satt2(struct mei_device *dev, phys_addr_t addr, u32 range);
  73
  74
  75#endif /* _MEI_HW_TXE_H_ */
  76