drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NVKM_FALCON_H__
   3 #define __NVKM_FALCON_H__
   4 #define nvkm_falcon(p) container_of((p), struct nvkm_falcon, engine)
   5 #include <core/engine.h>
   6 struct nvkm_fifo_chan;
   7 struct nvkm_gpuobj;
   8
   9 enum nvkm_falcon_dmaidx {
  10         FALCON_DMAIDX_UCODE             = 0,
  11         FALCON_DMAIDX_VIRT              = 1,
  12         FALCON_DMAIDX_PHYS_VID          = 2,
  13         FALCON_DMAIDX_PHYS_SYS_COH      = 3,
  14         FALCON_DMAIDX_PHYS_SYS_NCOH     = 4,
  15         FALCON_SEC2_DMAIDX_UCODE        = 6,
  16 };
  17
  18 struct nvkm_falcon {
  19         const struct nvkm_falcon_func *func;
  20         const struct nvkm_subdev *owner;
  21         const char *name;
  22         u32 addr;
  23
  24         struct mutex mutex;
  25         struct mutex dmem_mutex;
  26         const struct nvkm_subdev *user;
  27
  28         u8 version;
  29         u8 secret;
  30         bool debug;
  31         bool has_emem;
  32
  33         struct nvkm_memory *core;
  34         bool external;
  35
  36         struct {
  37                 u32 limit;
  38                 u32 *data;
  39                 u32  size;
  40                 u8 ports;
  41         } code;
  42
  43         struct {
  44                 u32 limit;
  45                 u32 *data;
  46                 u32  size;
  47                 u8 ports;
  48         } data;
  49
  50         struct nvkm_engine engine;
  51 };
  52
  53 /* This constructor must be called from the owner's oneinit() hook and
  54  * *not* its constructor.  This is to ensure that DEVINIT has been
  55  * completed, and that the device is correctly enabled before we touch
  56  * falcon registers.
  57  */
  58 int nvkm_falcon_v1_new(struct nvkm_subdev *owner, const char *name, u32 addr,
  59                        struct nvkm_falcon **);
  60
  61 void nvkm_falcon_del(struct nvkm_falcon **);
  62 int nvkm_falcon_get(struct nvkm_falcon *, const struct nvkm_subdev *);
  63 void nvkm_falcon_put(struct nvkm_falcon *, const struct nvkm_subdev *);
  64
  65 int nvkm_falcon_new_(const struct nvkm_falcon_func *, struct nvkm_device *,
  66                      int index, bool enable, u32 addr, struct nvkm_engine **);
  67
  68 struct nvkm_falcon_func {
  69         struct {
  70                 u32 *data;
  71                 u32  size;
  72         } code;
  73         struct {
  74                 u32 *data;
  75                 u32  size;
  76         } data;
  77         void (*init)(struct nvkm_falcon *);
  78         void (*intr)(struct nvkm_falcon *, struct nvkm_fifo_chan *);
  79         void (*load_imem)(struct nvkm_falcon *, void *, u32, u32, u16, u8, bool);
  80         void (*load_dmem)(struct nvkm_falcon *, void *, u32, u32, u8);
  81         void (*read_dmem)(struct nvkm_falcon *, u32, u32, u8, void *);
  82         void (*bind_context)(struct nvkm_falcon *, struct nvkm_memory *);
  83         int (*wait_for_halt)(struct nvkm_falcon *, u32);
  84         int (*clear_interrupt)(struct nvkm_falcon *, u32);
  85         void (*set_start_addr)(struct nvkm_falcon *, u32 start_addr);
  86         void (*start)(struct nvkm_falcon *);
  87         int (*enable)(struct nvkm_falcon *falcon);
  88         void (*disable)(struct nvkm_falcon *falcon);
  89
  90         struct nvkm_sclass sclass[];
  91 };
  92
  93 static inline u32
  94 nvkm_falcon_rd32(struct nvkm_falcon *falcon, u32 addr)
  95 {
  96         return nvkm_rd32(falcon->owner->device, falcon->addr + addr);
  97 }
  98
  99 static inline void
 100 nvkm_falcon_wr32(struct nvkm_falcon *falcon, u32 addr, u32 data)
 101 {
 102         nvkm_wr32(falcon->owner->device, falcon->addr + addr, data);
 103 }
 104
 105 static inline u32
 106 nvkm_falcon_mask(struct nvkm_falcon *falcon, u32 addr, u32 mask, u32 val)
 107 {
 108         struct nvkm_device *device = falcon->owner->device;
 109
 110         return nvkm_mask(device, falcon->addr + addr, mask, val);
 111 }
 112
 113 void nvkm_falcon_load_imem(struct nvkm_falcon *, void *, u32, u32, u16, u8,
 114                            bool);
 115 void nvkm_falcon_load_dmem(struct nvkm_falcon *, void *, u32, u32, u8);
 116 void nvkm_falcon_read_dmem(struct nvkm_falcon *, u32, u32, u8, void *);
 117 void nvkm_falcon_bind_context(struct nvkm_falcon *, struct nvkm_memory *);
 118 void nvkm_falcon_set_start_addr(struct nvkm_falcon *, u32);
 119 void nvkm_falcon_start(struct nvkm_falcon *);
 120 int nvkm_falcon_wait_for_halt(struct nvkm_falcon *, u32);
 121 int nvkm_falcon_clear_interrupt(struct nvkm_falcon *, u32);
 122 int nvkm_falcon_enable(struct nvkm_falcon *);
 123 void nvkm_falcon_disable(struct nvkm_falcon *);
 124 int nvkm_falcon_reset(struct nvkm_falcon *);
 125
 126 #endif