1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2020-2023 Intel Corporation
4  */
5 
6 #ifndef __IVPU_DRV_H__
7 #define __IVPU_DRV_H__
8 
9 #include <drm/drm_device.h>
10 #include <drm/drm_drv.h>
11 #include <drm/drm_managed.h>
12 #include <drm/drm_mm.h>
13 #include <drm/drm_print.h>
14 
15 #include <linux/pci.h>
16 #include <linux/xarray.h>
17 #include <uapi/drm/ivpu_accel.h>
18 
19 #include "ivpu_mmu_context.h"
20 
21 #define DRIVER_NAME "intel_vpu"
22 #define DRIVER_DESC "Driver for Intel Versatile Processing Unit (VPU)"
23 #define DRIVER_DATE "20230117"
24 
25 #define PCI_DEVICE_ID_MTL   0x7d1d
26 #define PCI_DEVICE_ID_ARL   0xad1d
27 #define PCI_DEVICE_ID_LNL   0x643e
28 
29 #define IVPU_HW_37XX	37
30 #define IVPU_HW_40XX	40
31 
32 #define IVPU_GLOBAL_CONTEXT_MMU_SSID 0
33 /* SSID 1 is used by the VPU to represent invalid context */
34 #define IVPU_USER_CONTEXT_MIN_SSID   2
35 #define IVPU_USER_CONTEXT_MAX_SSID   (IVPU_USER_CONTEXT_MIN_SSID + 63)
36 
37 #define IVPU_NUM_ENGINES	     2
38 
39 #define IVPU_PLATFORM_SILICON 0
40 #define IVPU_PLATFORM_SIMICS  2
41 #define IVPU_PLATFORM_FPGA    3
42 #define IVPU_PLATFORM_INVALID 8
43 
44 #define IVPU_DBG_REG	 BIT(0)
45 #define IVPU_DBG_IRQ	 BIT(1)
46 #define IVPU_DBG_MMU	 BIT(2)
47 #define IVPU_DBG_FILE	 BIT(3)
48 #define IVPU_DBG_MISC	 BIT(4)
49 #define IVPU_DBG_FW_BOOT BIT(5)
50 #define IVPU_DBG_PM	 BIT(6)
51 #define IVPU_DBG_IPC	 BIT(7)
52 #define IVPU_DBG_BO	 BIT(8)
53 #define IVPU_DBG_JOB	 BIT(9)
54 #define IVPU_DBG_JSM	 BIT(10)
55 #define IVPU_DBG_KREF	 BIT(11)
56 #define IVPU_DBG_RPM	 BIT(12)
57 
58 #define ivpu_err(vdev, fmt, ...) \
59 	drm_err(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
60 
61 #define ivpu_err_ratelimited(vdev, fmt, ...) \
62 	drm_err_ratelimited(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
63 
64 #define ivpu_warn(vdev, fmt, ...) \
65 	drm_warn(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
66 
67 #define ivpu_warn_ratelimited(vdev, fmt, ...) \
68 	drm_err_ratelimited(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
69 
70 #define ivpu_info(vdev, fmt, ...) drm_info(&(vdev)->drm, fmt, ##__VA_ARGS__)
71 
72 #define ivpu_dbg(vdev, type, fmt, args...) do {                                \
73 	if (unlikely(IVPU_DBG_##type & ivpu_dbg_mask))                         \
74 		dev_dbg((vdev)->drm.dev, "[%s] " fmt, #type, ##args);          \
75 } while (0)
76 
77 #define IVPU_WA(wa_name) (vdev->wa.wa_name)
78 
79 #define IVPU_PRINT_WA(wa_name) do {					\
80 	if (IVPU_WA(wa_name))						\
81 		ivpu_dbg(vdev, MISC, "Using WA: " #wa_name "\n");	\
82 } while (0)
83 
84 struct ivpu_wa_table {
85 	bool punit_disabled;
86 	bool clear_runtime_mem;
87 	bool d3hot_after_power_off;
88 	bool interrupt_clear_with_0;
89 	bool disable_clock_relinquish;
90 };
91 
92 struct ivpu_hw_info;
93 struct ivpu_mmu_info;
94 struct ivpu_fw_info;
95 struct ivpu_ipc_info;
96 struct ivpu_pm_info;
97 
98 struct ivpu_device {
99 	struct drm_device drm;
100 	void __iomem *regb;
101 	void __iomem *regv;
102 	u32 platform;
103 	u32 irq;
104 
105 	struct ivpu_wa_table wa;
106 	struct ivpu_hw_info *hw;
107 	struct ivpu_mmu_info *mmu;
108 	struct ivpu_fw_info *fw;
109 	struct ivpu_ipc_info *ipc;
110 	struct ivpu_pm_info *pm;
111 
112 	struct ivpu_mmu_context gctx;
113 	struct xarray context_xa;
114 	struct xa_limit context_xa_limit;
115 
116 	struct xarray submitted_jobs_xa;
117 	struct task_struct *job_done_thread;
118 
119 	atomic64_t unique_id_counter;
120 
121 	struct {
122 		int boot;
123 		int jsm;
124 		int tdr;
125 		int reschedule_suspend;
126 	} timeout;
127 };
128 
129 /*
130  * file_priv has its own refcount (ref) that allows user space to close the fd
131  * without blocking even if VPU is still processing some jobs.
132  */
133 struct ivpu_file_priv {
134 	struct kref ref;
135 	struct ivpu_device *vdev;
136 	struct mutex lock; /* Protects cmdq */
137 	struct ivpu_cmdq *cmdq[IVPU_NUM_ENGINES];
138 	struct ivpu_mmu_context ctx;
139 	u32 priority;
140 	bool has_mmu_faults;
141 };
142 
143 extern int ivpu_dbg_mask;
144 extern u8 ivpu_pll_min_ratio;
145 extern u8 ivpu_pll_max_ratio;
146 extern bool ivpu_disable_mmu_cont_pages;
147 
148 #define IVPU_TEST_MODE_DISABLED  0
149 #define IVPU_TEST_MODE_FW_TEST   1
150 #define IVPU_TEST_MODE_NULL_HW   2
151 extern int ivpu_test_mode;
152 
153 struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv);
154 struct ivpu_file_priv *ivpu_file_priv_get_by_ctx_id(struct ivpu_device *vdev, unsigned long id);
155 void ivpu_file_priv_put(struct ivpu_file_priv **link);
156 
157 int ivpu_boot(struct ivpu_device *vdev);
158 int ivpu_shutdown(struct ivpu_device *vdev);
159 void ivpu_prepare_for_reset(struct ivpu_device *vdev);
160 
ivpu_revision(struct ivpu_device * vdev)161 static inline u8 ivpu_revision(struct ivpu_device *vdev)
162 {
163 	return to_pci_dev(vdev->drm.dev)->revision;
164 }
165 
ivpu_device_id(struct ivpu_device * vdev)166 static inline u16 ivpu_device_id(struct ivpu_device *vdev)
167 {
168 	return to_pci_dev(vdev->drm.dev)->device;
169 }
170 
ivpu_hw_gen(struct ivpu_device * vdev)171 static inline int ivpu_hw_gen(struct ivpu_device *vdev)
172 {
173 	switch (ivpu_device_id(vdev)) {
174 	case PCI_DEVICE_ID_MTL:
175 	case PCI_DEVICE_ID_ARL:
176 		return IVPU_HW_37XX;
177 	case PCI_DEVICE_ID_LNL:
178 		return IVPU_HW_40XX;
179 	default:
180 		ivpu_err(vdev, "Unknown VPU device\n");
181 		return 0;
182 	}
183 }
184 
to_ivpu_device(struct drm_device * dev)185 static inline struct ivpu_device *to_ivpu_device(struct drm_device *dev)
186 {
187 	return container_of(dev, struct ivpu_device, drm);
188 }
189 
ivpu_get_context_count(struct ivpu_device * vdev)190 static inline u32 ivpu_get_context_count(struct ivpu_device *vdev)
191 {
192 	struct xa_limit ctx_limit = vdev->context_xa_limit;
193 
194 	return (ctx_limit.max - ctx_limit.min + 1);
195 }
196 
ivpu_get_platform(struct ivpu_device * vdev)197 static inline u32 ivpu_get_platform(struct ivpu_device *vdev)
198 {
199 	WARN_ON_ONCE(vdev->platform == IVPU_PLATFORM_INVALID);
200 	return vdev->platform;
201 }
202 
ivpu_is_silicon(struct ivpu_device * vdev)203 static inline bool ivpu_is_silicon(struct ivpu_device *vdev)
204 {
205 	return ivpu_get_platform(vdev) == IVPU_PLATFORM_SILICON;
206 }
207 
ivpu_is_simics(struct ivpu_device * vdev)208 static inline bool ivpu_is_simics(struct ivpu_device *vdev)
209 {
210 	return ivpu_get_platform(vdev) == IVPU_PLATFORM_SIMICS;
211 }
212 
ivpu_is_fpga(struct ivpu_device * vdev)213 static inline bool ivpu_is_fpga(struct ivpu_device *vdev)
214 {
215 	return ivpu_get_platform(vdev) == IVPU_PLATFORM_FPGA;
216 }
217 
218 #endif /* __IVPU_DRV_H__ */
219