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/*
* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Kevin Tian <kevin.tian@intel.com>
* Zhi Wang <zhi.a.wang@intel.com>
*
* Contributors:
* Min he <min.he@intel.com>
*
*/
#ifndef _GVT_INTERRUPT_H_
#define _GVT_INTERRUPT_H_
#include <linux/hrtimer.h>
#include <linux/kernel.h>
#include "i915_reg.h"
enum intel_gvt_event_type {
RCS_MI_USER_INTERRUPT = 0,
RCS_DEBUG,
RCS_MMIO_SYNC_FLUSH,
RCS_CMD_STREAMER_ERR,
RCS_PIPE_CONTROL,
RCS_L3_PARITY_ERR,
RCS_WATCHDOG_EXCEEDED,
RCS_PAGE_DIRECTORY_FAULT,
RCS_AS_CONTEXT_SWITCH,
RCS_MONITOR_BUFF_HALF_FULL,
VCS_MI_USER_INTERRUPT,
VCS_MMIO_SYNC_FLUSH,
VCS_CMD_STREAMER_ERR,
VCS_MI_FLUSH_DW,
VCS_WATCHDOG_EXCEEDED,
VCS_PAGE_DIRECTORY_FAULT,
VCS_AS_CONTEXT_SWITCH,
VCS2_MI_USER_INTERRUPT,
VCS2_MI_FLUSH_DW,
VCS2_AS_CONTEXT_SWITCH,
BCS_MI_USER_INTERRUPT,
BCS_MMIO_SYNC_FLUSH,
BCS_CMD_STREAMER_ERR,
BCS_MI_FLUSH_DW,
BCS_PAGE_DIRECTORY_FAULT,
BCS_AS_CONTEXT_SWITCH,
VECS_MI_USER_INTERRUPT,
VECS_MI_FLUSH_DW,
VECS_AS_CONTEXT_SWITCH,
PIPE_A_FIFO_UNDERRUN,
PIPE_B_FIFO_UNDERRUN,
PIPE_A_CRC_ERR,
PIPE_B_CRC_ERR,
PIPE_A_CRC_DONE,
PIPE_B_CRC_DONE,
PIPE_A_ODD_FIELD,
PIPE_B_ODD_FIELD,
PIPE_A_EVEN_FIELD,
PIPE_B_EVEN_FIELD,
PIPE_A_LINE_COMPARE,
PIPE_B_LINE_COMPARE,
PIPE_C_LINE_COMPARE,
PIPE_A_VBLANK,
PIPE_B_VBLANK,
PIPE_C_VBLANK,
PIPE_A_VSYNC,
PIPE_B_VSYNC,
PIPE_C_VSYNC,
PRIMARY_A_FLIP_DONE,
PRIMARY_B_FLIP_DONE,
PRIMARY_C_FLIP_DONE,
SPRITE_A_FLIP_DONE,
SPRITE_B_FLIP_DONE,
SPRITE_C_FLIP_DONE,
PCU_THERMAL,
PCU_PCODE2DRIVER_MAILBOX,
DPST_PHASE_IN,
DPST_HISTOGRAM,
GSE,
DP_A_HOTPLUG,
AUX_CHANNEL_A,
PERF_COUNTER,
POISON,
GTT_FAULT,
ERROR_INTERRUPT_COMBINED,
FDI_RX_INTERRUPTS_TRANSCODER_A,
AUDIO_CP_CHANGE_TRANSCODER_A,
AUDIO_CP_REQUEST_TRANSCODER_A,
FDI_RX_INTERRUPTS_TRANSCODER_B,
AUDIO_CP_CHANGE_TRANSCODER_B,
AUDIO_CP_REQUEST_TRANSCODER_B,
FDI_RX_INTERRUPTS_TRANSCODER_C,
AUDIO_CP_CHANGE_TRANSCODER_C,
AUDIO_CP_REQUEST_TRANSCODER_C,
ERR_AND_DBG,
GMBUS,
SDVO_B_HOTPLUG,
CRT_HOTPLUG,
DP_B_HOTPLUG,
DP_C_HOTPLUG,
DP_D_HOTPLUG,
AUX_CHANNEL_B,
AUX_CHANNEL_C,
AUX_CHANNEL_D,
AUDIO_POWER_STATE_CHANGE_B,
AUDIO_POWER_STATE_CHANGE_C,
AUDIO_POWER_STATE_CHANGE_D,
INTEL_GVT_EVENT_RESERVED,
INTEL_GVT_EVENT_MAX,
};
struct intel_gvt_irq;
struct intel_gvt;
struct intel_vgpu;
typedef void (*gvt_event_virt_handler_t)(struct intel_gvt_irq *irq,
enum intel_gvt_event_type event, struct intel_vgpu *vgpu);
struct intel_gvt_irq_ops {
void (*init_irq)(struct intel_gvt_irq *irq);
void (*check_pending_irq)(struct intel_vgpu *vgpu);
};
/* the list of physical interrupt control register groups */
enum intel_gvt_irq_type {
INTEL_GVT_IRQ_INFO_GT,
INTEL_GVT_IRQ_INFO_DPY,
INTEL_GVT_IRQ_INFO_PCH,
INTEL_GVT_IRQ_INFO_PM,
INTEL_GVT_IRQ_INFO_MASTER,
INTEL_GVT_IRQ_INFO_GT0,
INTEL_GVT_IRQ_INFO_GT1,
INTEL_GVT_IRQ_INFO_GT2,
INTEL_GVT_IRQ_INFO_GT3,
INTEL_GVT_IRQ_INFO_DE_PIPE_A,
INTEL_GVT_IRQ_INFO_DE_PIPE_B,
INTEL_GVT_IRQ_INFO_DE_PIPE_C,
INTEL_GVT_IRQ_INFO_DE_PORT,
INTEL_GVT_IRQ_INFO_DE_MISC,
INTEL_GVT_IRQ_INFO_AUD,
INTEL_GVT_IRQ_INFO_PCU,
INTEL_GVT_IRQ_INFO_MAX,
};
#define INTEL_GVT_IRQ_BITWIDTH 32
/* device specific interrupt bit definitions */
struct intel_gvt_irq_info {
char *name;
i915_reg_t reg_base;
enum intel_gvt_event_type bit_to_event[INTEL_GVT_IRQ_BITWIDTH];
unsigned long warned;
int group;
DECLARE_BITMAP(downstream_irq_bitmap, INTEL_GVT_IRQ_BITWIDTH);
bool has_upstream_irq;
};
/* per-event information */
struct intel_gvt_event_info {
int bit; /* map to register bit */
int policy; /* forwarding policy */
struct intel_gvt_irq_info *info; /* register info */
gvt_event_virt_handler_t v_handler; /* for v_event */
};
struct intel_gvt_irq_map {
int up_irq_group;
int up_irq_bit;
int down_irq_group;
u32 down_irq_bitmask;
};
/* structure containing device specific IRQ state */
struct intel_gvt_irq {
const struct intel_gvt_irq_ops *ops;
struct intel_gvt_irq_info *info[INTEL_GVT_IRQ_INFO_MAX];
DECLARE_BITMAP(irq_info_bitmap, INTEL_GVT_IRQ_INFO_MAX);
struct intel_gvt_event_info events[INTEL_GVT_EVENT_MAX];
DECLARE_BITMAP(pending_events, INTEL_GVT_EVENT_MAX);
struct intel_gvt_irq_map *irq_map;
};
int intel_gvt_init_irq(struct intel_gvt *gvt);
void intel_vgpu_trigger_virtual_event(struct intel_vgpu *vgpu,
enum intel_gvt_event_type event);
int intel_vgpu_reg_iir_handler(struct intel_vgpu *vgpu, unsigned int reg,
void *p_data, unsigned int bytes);
int intel_vgpu_reg_ier_handler(struct intel_vgpu *vgpu,
unsigned int reg, void *p_data, unsigned int bytes);
int intel_vgpu_reg_master_irq_handler(struct intel_vgpu *vgpu,
unsigned int reg, void *p_data, unsigned int bytes);
int intel_vgpu_reg_imr_handler(struct intel_vgpu *vgpu,
unsigned int reg, void *p_data, unsigned int bytes);
int gvt_ring_id_to_pipe_control_notify_event(int ring_id);
int gvt_ring_id_to_mi_flush_dw_event(int ring_id);
int gvt_ring_id_to_mi_user_interrupt_event(int ring_id);
#endif /* _GVT_INTERRUPT_H_ */
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