drivers/gpu/drm/nouveau/dispnv50/headc57d.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 "head.h"
  23 #include "atom.h"
  24 #include "core.h"
  25
  26 static void
  27 headc57d_or(struct nv50_head *head, struct nv50_head_atom *asyh)
  28 {
  29         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
  30         u32 *push;
  31         if ((push = evo_wait(core, 2))) {
  32                 /*XXX: This is a dirty hack until OR depth handling is
  33                  *     improved later for deep colour etc.
  34                  */
  35                 switch (asyh->or.depth) {
  36                 case 6: asyh->or.depth = 5; break;
  37                 case 5: asyh->or.depth = 4; break;
  38                 case 2: asyh->or.depth = 1; break;
  39                 case 0: asyh->or.depth = 4; break;
  40                 default:
  41                         WARN_ON(1);
  42                         break;
  43                 }
  44
  45                 evo_mthd(push, 0x2004 + (head->base.index * 0x400), 1);
  46                 evo_data(push, 0xfc000001 |
  47                                asyh->or.depth << 4 |
  48                                asyh->or.nvsync << 3 |
  49                                asyh->or.nhsync << 2);
  50                 evo_kick(push, core);
  51         }
  52 }
  53
  54 static void
  55 headc57d_procamp(struct nv50_head *head, struct nv50_head_atom *asyh)
  56 {
  57         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
  58         u32 *push;
  59         if ((push = evo_wait(core, 2))) {
  60                 evo_mthd(push, 0x2000 + (head->base.index * 0x400), 1);
  61 #if 0
  62                 evo_data(push, 0x80000000 |
  63                                asyh->procamp.sat.sin << 16 |
  64                                asyh->procamp.sat.cos << 4);
  65 #else
  66                 evo_data(push, 0);
  67 #endif
  68                 evo_kick(push, core);
  69         }
  70 }
  71
  72 void
  73 headc57d_olut_clr(struct nv50_head *head)
  74 {
  75         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
  76         u32 *push;
  77         if ((push = evo_wait(core, 2))) {
  78                 evo_mthd(push, 0x2288 + (head->base.index * 0x400), 1);
  79                 evo_data(push, 0x00000000);
  80                 evo_kick(push, core);
  81         }
  82 }
  83
  84 void
  85 headc57d_olut_set(struct nv50_head *head, struct nv50_head_atom *asyh)
  86 {
  87         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
  88         u32 *push;
  89         if ((push = evo_wait(core, 4))) {
  90                 evo_mthd(push, 0x2280 + (head->base.index * 0x400), 4);
  91                 evo_data(push, asyh->olut.size << 8 |
  92                                asyh->olut.mode << 2 |
  93                                asyh->olut.output_mode);
  94                 evo_data(push, 0xffffffff); /* FP_NORM_SCALE. */
  95                 evo_data(push, asyh->olut.handle);
  96                 evo_data(push, asyh->olut.offset >> 8);
  97                 evo_kick(push, core);
  98         }
  99 }
 100
 101 static void
 102 headc57d_olut_load_8(struct drm_color_lut *in, int size, void __iomem *mem)
 103 {
 104         memset_io(mem, 0x00, 0x20); /* VSS header. */
 105         mem += 0x20;
 106
 107         while (size--) {
 108                 u16 r = drm_color_lut_extract(in->  red + 0, 16);
 109                 u16 g = drm_color_lut_extract(in->green + 0, 16);
 110                 u16 b = drm_color_lut_extract(in-> blue + 0, 16);
 111                 u16 ri = 0, gi = 0, bi = 0, i;
 112
 113                 if (in++, size) {
 114                         ri = (drm_color_lut_extract(in->  red, 16) - r) / 4;
 115                         gi = (drm_color_lut_extract(in->green, 16) - g) / 4;
 116                         bi = (drm_color_lut_extract(in-> blue, 16) - b) / 4;
 117                 }
 118
 119                 for (i = 0; i < 4; i++, mem += 8) {
 120                         writew(r + ri * i, mem + 0);
 121                         writew(g + gi * i, mem + 2);
 122                         writew(b + bi * i, mem + 4);
 123                 }
 124         }
 125
 126         /* INTERPOLATE modes require a "next" entry to interpolate with,
 127          * so we replicate the last entry to deal with this for now.
 128          */
 129         writew(readw(mem - 8), mem + 0);
 130         writew(readw(mem - 6), mem + 2);
 131         writew(readw(mem - 4), mem + 4);
 132 }
 133
 134 static void
 135 headc57d_olut_load(struct drm_color_lut *in, int size, void __iomem *mem)
 136 {
 137         memset_io(mem, 0x00, 0x20); /* VSS header. */
 138         mem += 0x20;
 139
 140         for (; size--; in++, mem += 0x08) {
 141                 writew(drm_color_lut_extract(in->  red, 16), mem + 0);
 142                 writew(drm_color_lut_extract(in->green, 16), mem + 2);
 143                 writew(drm_color_lut_extract(in-> blue, 16), mem + 4);
 144         }
 145
 146         /* INTERPOLATE modes require a "next" entry to interpolate with,
 147          * so we replicate the last entry to deal with this for now.
 148          */
 149         writew(readw(mem - 8), mem + 0);
 150         writew(readw(mem - 6), mem + 2);
 151         writew(readw(mem - 4), mem + 4);
 152 }
 153
 154 void
 155 headc57d_olut(struct nv50_head *head, struct nv50_head_atom *asyh)
 156 {
 157         asyh->olut.mode = 2; /* DIRECT10 */
 158         asyh->olut.size = 4 /* VSS header. */ + 1024 + 1 /* Entries. */;
 159         asyh->olut.output_mode = 1; /* INTERPOLATE_ENABLE. */
 160         if (asyh->state.gamma_lut &&
 161             asyh->state.gamma_lut->length / sizeof(struct drm_color_lut) == 256)
 162                 asyh->olut.load = headc57d_olut_load_8;
 163         else
 164                 asyh->olut.load = headc57d_olut_load;
 165 }
 166
 167 static void
 168 headc57d_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
 169 {
 170         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
 171         struct nv50_head_mode *m = &asyh->mode;
 172         u32 *push;
 173         if ((push = evo_wait(core, 12))) {
 174                 evo_mthd(push, 0x2064 + (head->base.index * 0x400), 5);
 175                 evo_data(push, (m->v.active  << 16) | m->h.active );
 176                 evo_data(push, (m->v.synce   << 16) | m->h.synce  );
 177                 evo_data(push, (m->v.blanke  << 16) | m->h.blanke );
 178                 evo_data(push, (m->v.blanks  << 16) | m->h.blanks );
 179                 evo_data(push, (m->v.blank2e << 16) | m->v.blank2s);
 180                 evo_mthd(push, 0x200c + (head->base.index * 0x400), 1);
 181                 evo_data(push, m->clock * 1000);
 182                 evo_mthd(push, 0x2028 + (head->base.index * 0x400), 1);
 183                 evo_data(push, m->clock * 1000);
 184                 /*XXX: HEAD_USAGE_BOUNDS, doesn't belong here. */
 185                 evo_mthd(push, 0x2030 + (head->base.index * 0x400), 1);
 186                 evo_data(push, 0x00001014);
 187                 evo_kick(push, core);
 188         }
 189 }
 190
 191 const struct nv50_head_func
 192 headc57d = {
 193         .view = headc37d_view,
 194         .mode = headc57d_mode,
 195         .olut = headc57d_olut,
 196         .olut_identity = true,
 197         .olut_set = headc57d_olut_set,
 198         .olut_clr = headc57d_olut_clr,
 199         .curs_layout = head917d_curs_layout,
 200         .curs_format = headc37d_curs_format,
 201         .curs_set = headc37d_curs_set,
 202         .curs_clr = headc37d_curs_clr,
 203         .dither = headc37d_dither,
 204         .procamp = headc57d_procamp,
 205         .or = headc57d_or,
 206 };