drivers/gpu/drm/nouveau/dispnv50/core507d.c

   1 /*
   2  * Copyright 2018 Red Hat Inc.
   3  *
   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:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22 #include "core.h"
  23 #include "head.h"
  24
  25 #include <nvif/cl507d.h>
  26 #include <nvif/push507c.h>
  27 #include <nvif/timer.h>
  28
  29 #include <nvhw/class/cl507d.h>
  30
  31 #include "nouveau_bo.h"
  32
  33 int
  34 core507d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
  35 {
  36         struct nvif_push *push = core->chan.push;
  37         int ret;
  38
  39         if ((ret = PUSH_WAIT(push, 5)))
  40                 return ret;
  41
  42         if (ntfy) {
  43                 PUSH_MTHD(push, NV507D, SET_NOTIFIER_CONTROL,
  44                           NVDEF(NV507D, SET_NOTIFIER_CONTROL, MODE, WRITE) |
  45                           NVVAL(NV507D, SET_NOTIFIER_CONTROL, OFFSET, NV50_DISP_CORE_NTFY >> 2) |
  46                           NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, ENABLE));
  47         }
  48
  49         PUSH_MTHD(push, NV507D, UPDATE, interlock[NV50_DISP_INTERLOCK_BASE] |
  50                                         interlock[NV50_DISP_INTERLOCK_OVLY] |
  51                   NVDEF(NV507D, UPDATE, NOT_DRIVER_FRIENDLY, FALSE) |
  52                   NVDEF(NV507D, UPDATE, NOT_DRIVER_UNFRIENDLY, FALSE) |
  53                   NVDEF(NV507D, UPDATE, INHIBIT_INTERRUPTS, FALSE),
  54
  55                                 SET_NOTIFIER_CONTROL,
  56                   NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, DISABLE));
  57
  58         return PUSH_KICK(push);
  59 }
  60
  61 int
  62 core507d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset,
  63                         struct nvif_device *device)
  64 {
  65         s64 time = nvif_msec(device, 2000ULL,
  66                 if (NVBO_TD32(bo, offset, NV_DISP_CORE_NOTIFIER_1, COMPLETION_0, DONE, ==, TRUE))
  67                         break;
  68                 usleep_range(1, 2);
  69         );
  70         return time < 0 ? time : 0;
  71 }
  72
  73 void
  74 core507d_ntfy_init(struct nouveau_bo *bo, u32 offset)
  75 {
  76         NVBO_WR32(bo, offset, NV_DISP_CORE_NOTIFIER_1, COMPLETION_0,
  77                         NVDEF(NV_DISP_CORE_NOTIFIER_1, COMPLETION_0, DONE, FALSE));
  78 }
  79
  80 int
  81 core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp)
  82 {
  83         struct nvif_push *push = disp->core->chan.push;
  84         int ret;
  85
  86         if ((ret = PUSH_WAIT(push, 2)))
  87                 return ret;
  88
  89         PUSH_MTHD(push, NV507D, GET_CAPABILITIES, 0x00000000);
  90         return PUSH_KICK(push);
  91 }
  92
  93 int
  94 core507d_init(struct nv50_core *core)
  95 {
  96         struct nvif_push *push = core->chan.push;
  97         int ret;
  98
  99         if ((ret = PUSH_WAIT(push, 2)))
 100                 return ret;
 101
 102         PUSH_MTHD(push, NV507D, SET_CONTEXT_DMA_NOTIFIER, core->chan.sync.handle);
 103         return PUSH_KICK(push);
 104 }
 105
 106 static const struct nv50_core_func
 107 core507d = {
 108         .init = core507d_init,
 109         .ntfy_init = core507d_ntfy_init,
 110         .caps_init = core507d_caps_init,
 111         .ntfy_wait_done = core507d_ntfy_wait_done,
 112         .update = core507d_update,
 113         .head = &head507d,
 114         .dac = &dac507d,
 115         .sor = &sor507d,
 116         .pior = &pior507d,
 117 };
 118
 119 int
 120 core507d_new_(const struct nv50_core_func *func, struct nouveau_drm *drm,
 121               s32 oclass, struct nv50_core **pcore)
 122 {
 123         struct nv50_disp_core_channel_dma_v0 args = {};
 124         struct nv50_disp *disp = nv50_disp(drm->dev);
 125         struct nv50_core *core;
 126         int ret;
 127
 128         if (!(core = *pcore = kzalloc(sizeof(*core), GFP_KERNEL)))
 129                 return -ENOMEM;
 130         core->func = func;
 131
 132         ret = nv50_dmac_create(&drm->client.device, &disp->disp->object,
 133                                &oclass, 0, &args, sizeof(args),
 134                                disp->sync->offset, &core->chan);
 135         if (ret) {
 136                 NV_ERROR(drm, "core%04x allocation failed: %d\n", oclass, ret);
 137                 return ret;
 138         }
 139
 140         return 0;
 141 }
 142
 143 int
 144 core507d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
 145 {
 146         return core507d_new_(&core507d, drm, oclass, pcore);
 147 }