1#include "drm-uapi/drm_fourcc.h"
2
3#include "pipe/p_context.h"
4#include "nvc0/nvc0_resource.h"
5#include "nouveau_screen.h"
6
7
8static struct pipe_resource *
9nvc0_resource_create(struct pipe_screen *screen,
10                     const struct pipe_resource *templ)
11{
12   switch (templ->target) {
13   case PIPE_BUFFER:
14      return nouveau_buffer_create(screen, templ);
15   default:
16      return nvc0_miptree_create(screen, templ, NULL, 0);
17   }
18}
19
20static struct pipe_resource *
21nvc0_resource_create_with_modifiers(struct pipe_screen *screen,
22                                    const struct pipe_resource *templ,
23                                    const uint64_t *modifiers, int count)
24{
25   switch (templ->target) {
26   case PIPE_BUFFER:
27      return nouveau_buffer_create(screen, templ);
28   default:
29      return nvc0_miptree_create(screen, templ, modifiers, count);
30   }
31}
32
33static void
34nvc0_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *res)
35{
36   if (res->target == PIPE_BUFFER)
37      nouveau_buffer_destroy(pscreen, res);
38   else
39      nv50_miptree_destroy(pscreen, res);
40}
41
42static void
43nvc0_query_dmabuf_modifiers(struct pipe_screen *screen,
44                            enum pipe_format format, int max,
45                            uint64_t *modifiers, unsigned int *external_only,
46                            int *count)
47{
48   const int s = nouveau_screen(screen)->tegra_sector_layout ? 0 : 1;
49   const uint32_t uc_kind =
50      nvc0_choose_tiled_storage_type(screen, format, 0, false);
51   const uint32_t num_uc = uc_kind ? 6 : 0; /* max block height = 32 GOBs */
52   const int num_supported = num_uc + 1; /* LINEAR is always supported */
53   const uint32_t kind_gen = nvc0_get_kind_generation(screen);
54   int i, num = 0;
55
56   if (max > num_supported)
57      max = num_supported;
58
59   if (!max) {
60      max = num_supported;
61      external_only = NULL;
62      modifiers = NULL;
63   }
64
65#define NVC0_ADD_MOD(m) do { \
66   if (modifiers) modifiers[num] = m; \
67   if (external_only) external_only[num] = 0; \
68   num++; \
69} while (0)
70
71   for (i = 0; i < max && i < num_uc; i++)
72      NVC0_ADD_MOD(DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(0, s, kind_gen,
73                                                         uc_kind, 5 - i));
74
75   if (i < max)
76      NVC0_ADD_MOD(DRM_FORMAT_MOD_LINEAR);
77
78#undef NVC0_ADD_MOD
79
80   *count = num;
81}
82
83static bool
84nvc0_is_dmabuf_modifier_supported(struct pipe_screen *screen,
85                                  uint64_t modifier, enum pipe_format format,
86                                  bool *external_only)
87{
88   const int s = nouveau_screen(screen)->tegra_sector_layout ? 0 : 1;
89   const uint32_t uc_kind =
90      nvc0_choose_tiled_storage_type(screen, format, 0, false);
91   const uint32_t num_uc = uc_kind ? 6 : 0; /* max block height = 32 GOBs */
92   const uint32_t kind_gen = nvc0_get_kind_generation(screen);
93   int i;
94
95   if (modifier == DRM_FORMAT_MOD_LINEAR) {
96      if (external_only)
97         *external_only = false;
98
99      return true;
100   }
101
102   for (i = 0; i < num_uc; i++) {
103      if (DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(0, s, kind_gen, uc_kind, i) == modifier) {
104         if (external_only)
105            *external_only = false;
106
107         return true;
108      }
109   }
110
111   return false;
112}
113
114static struct pipe_resource *
115nvc0_resource_from_handle(struct pipe_screen * screen,
116                          const struct pipe_resource *templ,
117                          struct winsys_handle *whandle,
118                          unsigned usage)
119{
120   if (templ->target == PIPE_BUFFER) {
121      return NULL;
122   } else {
123      struct pipe_resource *res = nv50_miptree_from_handle(screen,
124                                                           templ, whandle);
125      return res;
126   }
127}
128
129static struct pipe_surface *
130nvc0_surface_create(struct pipe_context *pipe,
131                    struct pipe_resource *pres,
132                    const struct pipe_surface *templ)
133{
134   if (unlikely(pres->target == PIPE_BUFFER))
135      return nv50_surface_from_buffer(pipe, pres, templ);
136   return nvc0_miptree_surface_new(pipe, pres, templ);
137}
138
139static struct pipe_resource *
140nvc0_resource_from_user_memory(struct pipe_screen *pipe,
141                               const struct pipe_resource *templ,
142                               void *user_memory)
143{
144   ASSERTED struct nouveau_screen *screen = nouveau_screen(pipe);
145
146   assert(screen->has_svm);
147   assert(templ->target == PIPE_BUFFER);
148
149   return nouveau_buffer_create_from_user(pipe, templ, user_memory);
150}
151
152void
153nvc0_init_resource_functions(struct pipe_context *pcontext)
154{
155   pcontext->buffer_map = nouveau_buffer_transfer_map;
156   pcontext->texture_map = nvc0_miptree_transfer_map;
157   pcontext->transfer_flush_region = nouveau_buffer_transfer_flush_region;
158   pcontext->buffer_unmap = nouveau_buffer_transfer_unmap;
159   pcontext->texture_unmap = nvc0_miptree_transfer_unmap;
160   pcontext->buffer_subdata = u_default_buffer_subdata;
161   pcontext->texture_subdata = u_default_texture_subdata;
162   pcontext->create_surface = nvc0_surface_create;
163   pcontext->surface_destroy = nv50_surface_destroy;
164   pcontext->invalidate_resource = nv50_invalidate_resource;
165}
166
167void
168nvc0_screen_init_resource_functions(struct pipe_screen *pscreen)
169{
170   pscreen->resource_create = nvc0_resource_create;
171   pscreen->resource_create_with_modifiers = nvc0_resource_create_with_modifiers;
172   pscreen->query_dmabuf_modifiers = nvc0_query_dmabuf_modifiers;
173   pscreen->is_dmabuf_modifier_supported = nvc0_is_dmabuf_modifier_supported;
174   pscreen->resource_from_handle = nvc0_resource_from_handle;
175   pscreen->resource_get_handle = nvc0_miptree_get_handle;
176   pscreen->resource_destroy = nvc0_resource_destroy;
177   pscreen->resource_from_user_memory = nvc0_resource_from_user_memory;
178}
179