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      1 /*	$NetBSD: nouveau_drv.h,v 1.5 2024/04/16 14:34:02 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NOUVEAU_DRV_H__
      5 #define __NOUVEAU_DRV_H__
      6 
      7 #define DRIVER_AUTHOR		"Nouveau Project"
      8 #define DRIVER_EMAIL		"nouveau (at) lists.freedesktop.org"
      9 
     10 #define DRIVER_NAME		"nouveau"
     11 #define DRIVER_DESC		"nVidia Riva/TNT/GeForce/Quadro/Tesla/Tegra K1+"
     12 #define DRIVER_DATE		"20120801"
     13 
     14 #define DRIVER_MAJOR		1
     15 #define DRIVER_MINOR		3
     16 #define DRIVER_PATCHLEVEL	1
     17 
     18 /*
     19  * 1.1.1:
     20  * 	- added support for tiled system memory buffer objects
     21  *      - added support for NOUVEAU_GETPARAM_GRAPH_UNITS on [nvc0,nve0].
     22  *      - added support for compressed memory storage types on [nvc0,nve0].
     23  *      - added support for software methods 0x600,0x644,0x6ac on nvc0
     24  *        to control registers on the MPs to enable performance counters,
     25  *        and to control the warp error enable mask (OpenGL requires out of
     26  *        bounds access to local memory to be silently ignored / return 0).
     27  * 1.1.2:
     28  *      - fixes multiple bugs in flip completion events and timestamping
     29  * 1.2.0:
     30  * 	- object api exposed to userspace
     31  * 	- fermi,kepler,maxwell zbc
     32  * 1.2.1:
     33  *      - allow concurrent access to bo's mapped read/write.
     34  * 1.2.2:
     35  *      - add NOUVEAU_GEM_DOMAIN_COHERENT flag
     36  * 1.3.0:
     37  *      - NVIF ABI modified, safe because only (current) users are test
     38  *        programs that get directly linked with NVKM.
     39  * 1.3.1:
     40  *      - implemented limited ABI16/NVIF interop
     41  */
     42 
     43 #include <linux/acpi.h>
     44 #include <linux/notifier.h>
     45 
     46 #include <nvif/client.h>
     47 #include <nvif/device.h>
     48 #include <nvif/ioctl.h>
     49 #include <nvif/mmu.h>
     50 #include <nvif/vmm.h>
     51 
     52 #include <drm/drm_connector.h>
     53 #include <drm/drm_device.h>
     54 #include <drm/drm_drv.h>
     55 #include <drm/drm_file.h>
     56 
     57 #include <drm/ttm/ttm_bo_api.h>
     58 #include <drm/ttm/ttm_bo_driver.h>
     59 #include <drm/ttm/ttm_placement.h>
     60 #include <drm/ttm/ttm_memory.h>
     61 #include <drm/ttm/ttm_module.h>
     62 #include <drm/ttm/ttm_page_alloc.h>
     63 
     64 #include <drm/drm_audio_component.h>
     65 
     66 #include "uapi/drm/nouveau_drm.h"
     67 
     68 struct nouveau_channel;
     69 struct platform_device;
     70 
     71 #include "nouveau_fence.h"
     72 #include "nouveau_bios.h"
     73 #include "nouveau_vmm.h"
     74 
     75 struct nouveau_drm_tile {
     76 	struct nouveau_fence *fence;
     77 	bool used;
     78 };
     79 
     80 enum nouveau_drm_object_route {
     81 	NVDRM_OBJECT_NVIF = NVIF_IOCTL_V0_OWNER_NVIF,
     82 	NVDRM_OBJECT_USIF,
     83 	NVDRM_OBJECT_ABI16,
     84 	NVDRM_OBJECT_ANY = NVIF_IOCTL_V0_OWNER_ANY,
     85 };
     86 
     87 enum nouveau_drm_notify_route {
     88 	NVDRM_NOTIFY_NVIF = 0,
     89 	NVDRM_NOTIFY_USIF
     90 };
     91 
     92 enum nouveau_drm_handle {
     93 	NVDRM_CHAN    = 0xcccc0000, /* |= client chid */
     94 	NVDRM_NVSW    = 0x55550000,
     95 };
     96 
     97 struct nouveau_cli {
     98 	struct nvif_client base;
     99 	struct nouveau_drm *drm;
    100 	struct mutex mutex;
    101 
    102 	struct nvif_device device;
    103 	struct nvif_mmu mmu;
    104 	struct nouveau_vmm vmm;
    105 	struct nouveau_vmm svm;
    106 	const struct nvif_mclass *mem;
    107 
    108 	struct list_head head;
    109 	void *abi16;
    110 	struct list_head objects;
    111 	struct list_head notifys;
    112 	char name[32];
    113 
    114 	struct work_struct work;
    115 	struct list_head worker;
    116 	struct mutex lock;
    117 };
    118 
    119 struct nouveau_cli_work {
    120 	void (*func)(struct nouveau_cli_work *);
    121 	struct nouveau_cli *cli;
    122 	struct list_head head;
    123 
    124 	struct dma_fence *fence;
    125 	struct dma_fence_cb cb;
    126 };
    127 
    128 void nouveau_cli_work_queue(struct nouveau_cli *, struct dma_fence *,
    129 			    struct nouveau_cli_work *);
    130 
    131 static inline struct nouveau_cli *
    132 nouveau_cli(struct drm_file *fpriv)
    133 {
    134 	return fpriv ? fpriv->driver_priv : NULL;
    135 }
    136 
    137 #include <nvif/object.h>
    138 
    139 struct nouveau_drm {
    140 	struct nouveau_cli master;
    141 	struct nouveau_cli client;
    142 	struct drm_device *dev;
    143 
    144 	struct list_head clients;
    145 
    146 	struct {
    147 		struct agp_bridge_data *bridge;
    148 		u32 base;
    149 		u32 size;
    150 		bool cma;
    151 	} agp;
    152 
    153 	/* TTM interface support */
    154 	struct {
    155 		struct ttm_bo_device bdev;
    156 		atomic_t validate_sequence;
    157 		int (*move)(struct nouveau_channel *,
    158 			    struct ttm_buffer_object *,
    159 			    struct ttm_mem_reg *, struct ttm_mem_reg *);
    160 		struct nouveau_channel *chan;
    161 		struct nvif_object copy;
    162 		int mtrr;
    163 		int type_vram;
    164 		int type_host[2];
    165 		int type_ncoh[2];
    166 	} ttm;
    167 
    168 	/* GEM interface support */
    169 	struct {
    170 		u64 vram_available;
    171 		u64 gart_available;
    172 	} gem;
    173 
    174 	/* synchronisation */
    175 	void *fence;
    176 
    177 	/* Global channel management. */
    178 	struct {
    179 		int nr;
    180 		u64 context_base;
    181 	} chan;
    182 
    183 	/* context for accelerated drm-internal operations */
    184 	struct nouveau_channel *cechan;
    185 	struct nouveau_channel *channel;
    186 	struct nvkm_gpuobj *notify;
    187 	struct nouveau_fbdev *fbcon;
    188 	struct nvif_object nvsw;
    189 	struct nvif_object ntfy;
    190 
    191 	/* nv10-nv40 tiling regions */
    192 	struct {
    193 		struct nouveau_drm_tile reg[15];
    194 		spinlock_t lock;
    195 	} tile;
    196 
    197 	/* modesetting */
    198 	struct nvbios vbios;
    199 	struct nouveau_display *display;
    200 	struct work_struct hpd_work;
    201 	struct work_struct fbcon_work;
    202 	int fbcon_new_state;
    203 #ifdef CONFIG_ACPI
    204 	struct notifier_block acpi_nb;
    205 #endif
    206 
    207 	/* power management */
    208 	struct nouveau_hwmon *hwmon;
    209 	struct nouveau_debugfs *debugfs;
    210 
    211 	/* led management */
    212 	struct nouveau_led *led;
    213 
    214 	struct dev_pm_domain vga_pm_domain;
    215 
    216 	struct nouveau_svm *svm;
    217 
    218 	struct nouveau_dmem *dmem;
    219 
    220 	struct {
    221 		struct drm_audio_component *component;
    222 		bool component_registered;
    223 	} audio;
    224 };
    225 
    226 static inline struct nouveau_drm *
    227 nouveau_drm(struct drm_device *dev)
    228 {
    229 	return dev->dev_private;
    230 }
    231 
    232 static inline bool
    233 nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm *drm)
    234 {
    235 	struct nvif_mmu *mmu = &drm->client.mmu;
    236 	return !(mmu->type[drm->ttm.type_host[0]].type & NVIF_MEM_UNCACHED);
    237 }
    238 
    239 #ifdef __NetBSD__
    240 int nouveau_drm_device_init(struct drm_device *);
    241 void nouveau_drm_device_fini(struct drm_device *);
    242 int nouveau_pmops_suspend(struct drm_device *);
    243 int nouveau_pmops_resume(struct drm_device *);
    244 #else
    245 int nouveau_pmops_suspend(struct device *);
    246 int nouveau_pmops_resume(struct device *);
    247 #endif
    248 bool nouveau_pmops_runtime(void);
    249 
    250 #include <nvkm/core/tegra.h>
    251 
    252 struct drm_device *
    253 nouveau_platform_device_create(const struct nvkm_device_tegra_func *,
    254 			       struct platform_device *, struct nvkm_device **);
    255 void nouveau_drm_device_remove(struct drm_device *dev);
    256 
    257 #define NV_PRINTK(l,c,f,a...) do {                                             \
    258 	struct nouveau_cli *_cli = (c);                                        \
    259 	dev_##l(_cli->drm->dev->dev, "%s: "f, _cli->name, ##a);                \
    260 } while(0)
    261 
    262 #define NV_FATAL(drm,f,a...) NV_PRINTK(crit, &(drm)->client, f, ##a)
    263 #define NV_ERROR(drm,f,a...) NV_PRINTK(err, &(drm)->client, f, ##a)
    264 #define NV_WARN(drm,f,a...) NV_PRINTK(warn, &(drm)->client, f, ##a)
    265 #define NV_INFO(drm,f,a...) NV_PRINTK(info, &(drm)->client, f, ##a)
    266 
    267 #define NV_DEBUG(drm,f,a...) do {                                              \
    268 	if (drm_debug_enabled(DRM_UT_DRIVER))                                  \
    269 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
    270 } while(0)
    271 #define NV_ATOMIC(drm,f,a...) do {                                             \
    272 	if (drm_debug_enabled(DRM_UT_ATOMIC))                                  \
    273 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
    274 } while(0)
    275 
    276 #define NV_PRINTK_ONCE(l,c,f,a...) NV_PRINTK(l##_once,c,f, ##a)
    277 
    278 #define NV_ERROR_ONCE(drm,f,a...) NV_PRINTK_ONCE(err, &(drm)->client, f, ##a)
    279 #define NV_WARN_ONCE(drm,f,a...) NV_PRINTK_ONCE(warn, &(drm)->client, f, ##a)
    280 #define NV_INFO_ONCE(drm,f,a...) NV_PRINTK_ONCE(info, &(drm)->client, f, ##a)
    281 
    282 extern int nouveau_modeset;
    283 
    284 #endif
    285