2 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Kevin Tian <kevin.tian@intel.com>
25 * Zhi Wang <zhi.a.wang@intel.com>
28 * Min he <min.he@intel.com>
32 #ifndef _GVT_INTERRUPT_H_
33 #define _GVT_INTERRUPT_H_
35 #include <linux/hrtimer.h>
36 #include <linux/kernel.h>
40 enum intel_gvt_event_type {
41 RCS_MI_USER_INTERRUPT = 0,
47 RCS_WATCHDOG_EXCEEDED,
48 RCS_PAGE_DIRECTORY_FAULT,
49 RCS_AS_CONTEXT_SWITCH,
50 RCS_MONITOR_BUFF_HALF_FULL,
52 VCS_MI_USER_INTERRUPT,
56 VCS_WATCHDOG_EXCEEDED,
57 VCS_PAGE_DIRECTORY_FAULT,
58 VCS_AS_CONTEXT_SWITCH,
60 VCS2_MI_USER_INTERRUPT,
62 VCS2_AS_CONTEXT_SWITCH,
64 BCS_MI_USER_INTERRUPT,
68 BCS_PAGE_DIRECTORY_FAULT,
69 BCS_AS_CONTEXT_SWITCH,
71 VECS_MI_USER_INTERRUPT,
73 VECS_AS_CONTEXT_SWITCH,
102 PCU_PCODE2DRIVER_MAILBOX,
112 ERROR_INTERRUPT_COMBINED,
114 FDI_RX_INTERRUPTS_TRANSCODER_A,
115 AUDIO_CP_CHANGE_TRANSCODER_A,
116 AUDIO_CP_REQUEST_TRANSCODER_A,
117 FDI_RX_INTERRUPTS_TRANSCODER_B,
118 AUDIO_CP_CHANGE_TRANSCODER_B,
119 AUDIO_CP_REQUEST_TRANSCODER_B,
120 FDI_RX_INTERRUPTS_TRANSCODER_C,
121 AUDIO_CP_CHANGE_TRANSCODER_C,
122 AUDIO_CP_REQUEST_TRANSCODER_C,
133 AUDIO_POWER_STATE_CHANGE_B,
134 AUDIO_POWER_STATE_CHANGE_C,
135 AUDIO_POWER_STATE_CHANGE_D,
137 INTEL_GVT_EVENT_RESERVED,
141 struct intel_gvt_irq;
145 typedef void (*gvt_event_virt_handler_t)(struct intel_gvt_irq *irq,
146 enum intel_gvt_event_type event, struct intel_vgpu *vgpu);
148 struct intel_gvt_irq_ops {
149 void (*init_irq)(struct intel_gvt_irq *irq);
150 void (*check_pending_irq)(struct intel_vgpu *vgpu);
153 /* the list of physical interrupt control register groups */
154 enum intel_gvt_irq_type {
155 INTEL_GVT_IRQ_INFO_GT,
156 INTEL_GVT_IRQ_INFO_DPY,
157 INTEL_GVT_IRQ_INFO_PCH,
158 INTEL_GVT_IRQ_INFO_PM,
160 INTEL_GVT_IRQ_INFO_MASTER,
161 INTEL_GVT_IRQ_INFO_GT0,
162 INTEL_GVT_IRQ_INFO_GT1,
163 INTEL_GVT_IRQ_INFO_GT2,
164 INTEL_GVT_IRQ_INFO_GT3,
165 INTEL_GVT_IRQ_INFO_DE_PIPE_A,
166 INTEL_GVT_IRQ_INFO_DE_PIPE_B,
167 INTEL_GVT_IRQ_INFO_DE_PIPE_C,
168 INTEL_GVT_IRQ_INFO_DE_PORT,
169 INTEL_GVT_IRQ_INFO_DE_MISC,
170 INTEL_GVT_IRQ_INFO_AUD,
171 INTEL_GVT_IRQ_INFO_PCU,
173 INTEL_GVT_IRQ_INFO_MAX,
176 #define INTEL_GVT_IRQ_BITWIDTH 32
178 /* device specific interrupt bit definitions */
179 struct intel_gvt_irq_info {
182 enum intel_gvt_event_type bit_to_event[INTEL_GVT_IRQ_BITWIDTH];
183 unsigned long warned;
185 DECLARE_BITMAP(downstream_irq_bitmap, INTEL_GVT_IRQ_BITWIDTH);
186 bool has_upstream_irq;
189 /* per-event information */
190 struct intel_gvt_event_info {
191 int bit; /* map to register bit */
192 int policy; /* forwarding policy */
193 struct intel_gvt_irq_info *info; /* register info */
194 gvt_event_virt_handler_t v_handler; /* for v_event */
197 struct intel_gvt_irq_map {
201 u32 down_irq_bitmask;
204 /* structure containing device specific IRQ state */
205 struct intel_gvt_irq {
206 struct intel_gvt_irq_ops *ops;
207 struct intel_gvt_irq_info *info[INTEL_GVT_IRQ_INFO_MAX];
208 DECLARE_BITMAP(irq_info_bitmap, INTEL_GVT_IRQ_INFO_MAX);
209 struct intel_gvt_event_info events[INTEL_GVT_EVENT_MAX];
210 DECLARE_BITMAP(pending_events, INTEL_GVT_EVENT_MAX);
211 struct intel_gvt_irq_map *irq_map;
214 int intel_gvt_init_irq(struct intel_gvt *gvt);
216 void intel_vgpu_trigger_virtual_event(struct intel_vgpu *vgpu,
217 enum intel_gvt_event_type event);
219 int intel_vgpu_reg_iir_handler(struct intel_vgpu *vgpu, unsigned int reg,
220 void *p_data, unsigned int bytes);
221 int intel_vgpu_reg_ier_handler(struct intel_vgpu *vgpu,
222 unsigned int reg, void *p_data, unsigned int bytes);
223 int intel_vgpu_reg_master_irq_handler(struct intel_vgpu *vgpu,
224 unsigned int reg, void *p_data, unsigned int bytes);
225 int intel_vgpu_reg_imr_handler(struct intel_vgpu *vgpu,
226 unsigned int reg, void *p_data, unsigned int bytes);
228 int gvt_ring_id_to_pipe_control_notify_event(int ring_id);
229 int gvt_ring_id_to_mi_flush_dw_event(int ring_id);
230 int gvt_ring_id_to_mi_user_interrupt_event(int ring_id);
232 #endif /* _GVT_INTERRUPT_H_ */