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      1 /*
      2  * Copyright 2008 Corbin Simpson <MostAwesomeDude (at) gmail.com>
      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  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
     22 
     23 #include "draw/draw_context.h"
     24 
     25 #include "util/u_memory.h"
     26 #include "util/u_sampler.h"
     27 #include "util/u_simple_list.h"
     28 #include "util/u_upload_mgr.h"
     29 #include "os/os_time.h"
     30 #include "vl/vl_decoder.h"
     31 #include "vl/vl_video_buffer.h"
     32 
     33 #include "r300_cb.h"
     34 #include "r300_context.h"
     35 #include "r300_emit.h"
     36 #include "r300_screen.h"
     37 #include "r300_screen_buffer.h"
     38 
     39 static void r300_release_referenced_objects(struct r300_context *r300)
     40 {
     41     struct pipe_framebuffer_state *fb =
     42             (struct pipe_framebuffer_state*)r300->fb_state.state;
     43     struct r300_textures_state *textures =
     44             (struct r300_textures_state*)r300->textures_state.state;
     45     unsigned i;
     46 
     47     /* Framebuffer state. */
     48     util_unreference_framebuffer_state(fb);
     49 
     50     /* Textures. */
     51     for (i = 0; i < textures->sampler_view_count; i++)
     52         pipe_sampler_view_reference(
     53                 (struct pipe_sampler_view**)&textures->sampler_views[i], NULL);
     54 
     55     /* The special dummy texture for texkill. */
     56     if (r300->texkill_sampler) {
     57         pipe_sampler_view_reference(
     58                 (struct pipe_sampler_view**)&r300->texkill_sampler,
     59                 NULL);
     60     }
     61 
     62     /* Manually-created vertex buffers. */
     63     pipe_resource_reference(&r300->dummy_vb.buffer, NULL);
     64     pipe_resource_reference(&r300->vbo, NULL);
     65 
     66     r300->context.delete_depth_stencil_alpha_state(&r300->context,
     67                                                    r300->dsa_decompress_zmask);
     68 }
     69 
     70 static void r300_destroy_context(struct pipe_context* context)
     71 {
     72     struct r300_context* r300 = r300_context(context);
     73 
     74     if (r300->cs && r300->hyperz_enabled) {
     75         r300->rws->cs_request_feature(r300->cs, RADEON_FID_R300_HYPERZ_ACCESS, FALSE);
     76     }
     77 
     78     if (r300->blitter)
     79         util_blitter_destroy(r300->blitter);
     80     if (r300->draw)
     81         draw_destroy(r300->draw);
     82 
     83     if (r300->uploader)
     84         u_upload_destroy(r300->uploader);
     85 
     86     /* XXX: This function assumes r300->query_list was initialized */
     87     r300_release_referenced_objects(r300);
     88 
     89     if (r300->cs)
     90         r300->rws->cs_destroy(r300->cs);
     91 
     92     /* XXX: No way to tell if this was initialized or not? */
     93     util_slab_destroy(&r300->pool_transfers);
     94 
     95     /* Free the structs allocated in r300_setup_atoms() */
     96     if (r300->aa_state.state) {
     97         FREE(r300->aa_state.state);
     98         FREE(r300->blend_color_state.state);
     99         FREE(r300->clip_state.state);
    100         FREE(r300->fb_state.state);
    101         FREE(r300->gpu_flush.state);
    102         FREE(r300->hyperz_state.state);
    103         FREE(r300->invariant_state.state);
    104         FREE(r300->rs_block_state.state);
    105         FREE(r300->scissor_state.state);
    106         FREE(r300->textures_state.state);
    107         FREE(r300->vap_invariant_state.state);
    108         FREE(r300->viewport_state.state);
    109         FREE(r300->ztop_state.state);
    110         FREE(r300->fs_constants.state);
    111         FREE(r300->vs_constants.state);
    112         if (!r300->screen->caps.has_tcl) {
    113             FREE(r300->vertex_stream_state.state);
    114         }
    115     }
    116     FREE(r300);
    117 }
    118 
    119 static void r300_flush_callback(void *data, unsigned flags)
    120 {
    121     struct r300_context* const cs_context_copy = data;
    122 
    123     r300_flush(&cs_context_copy->context, flags, NULL);
    124 }
    125 
    126 #define R300_INIT_ATOM(atomname, atomsize) \
    127  do { \
    128     r300->atomname.name = #atomname; \
    129     r300->atomname.state = NULL; \
    130     r300->atomname.size = atomsize; \
    131     r300->atomname.emit = r300_emit_##atomname; \
    132     r300->atomname.dirty = FALSE; \
    133  } while (0)
    134 
    135 #define R300_ALLOC_ATOM(atomname, statetype) \
    136 do { \
    137     r300->atomname.state = CALLOC_STRUCT(statetype); \
    138     if (r300->atomname.state == NULL) \
    139         return FALSE; \
    140 } while (0)
    141 
    142 static boolean r300_setup_atoms(struct r300_context* r300)
    143 {
    144     boolean is_rv350 = r300->screen->caps.is_rv350;
    145     boolean is_r500 = r300->screen->caps.is_r500;
    146     boolean has_tcl = r300->screen->caps.has_tcl;
    147     boolean drm_2_6_0 = r300->screen->info.drm_minor >= 6;
    148 
    149     /* Create the actual atom list.
    150      *
    151      * Some atoms never change size, others change every emit - those have
    152      * the size of 0 here.
    153      *
    154      * NOTE: The framebuffer state is split into these atoms:
    155      * - gpu_flush          (unpipelined regs)
    156      * - aa_state           (unpipelined regs)
    157      * - fb_state           (unpipelined regs)
    158      * - hyperz_state       (unpipelined regs followed by pipelined ones)
    159      * - fb_state_pipelined (pipelined regs)
    160      * The motivation behind this is to be able to emit a strict
    161      * subset of the regs, and to have reasonable register ordering. */
    162     /* SC, GB (unpipelined), RB3D (unpipelined), ZB (unpipelined). */
    163     R300_INIT_ATOM(gpu_flush, 9);
    164     R300_INIT_ATOM(aa_state, 4);
    165     R300_INIT_ATOM(fb_state, 0);
    166     R300_INIT_ATOM(hyperz_state, is_r500 || (is_rv350 && drm_2_6_0) ? 10 : 8);
    167     /* ZB (unpipelined), SC. */
    168     R300_INIT_ATOM(ztop_state, 2);
    169     /* ZB, FG. */
    170     R300_INIT_ATOM(dsa_state, is_r500 ? (drm_2_6_0 ? 10 : 8) : 6);
    171     /* RB3D. */
    172     R300_INIT_ATOM(blend_state, 8);
    173     R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
    174     /* SC. */
    175     R300_INIT_ATOM(scissor_state, 3);
    176     /* GB, FG, GA, SU, SC, RB3D. */
    177     R300_INIT_ATOM(invariant_state, 16 + (is_rv350 ? 4 : 0) + (is_r500 ? 4 : 0));
    178     /* VAP. */
    179     R300_INIT_ATOM(viewport_state, 9);
    180     R300_INIT_ATOM(pvs_flush, 2);
    181     R300_INIT_ATOM(vap_invariant_state, is_r500 ? 11 : 9);
    182     R300_INIT_ATOM(vertex_stream_state, 0);
    183     R300_INIT_ATOM(vs_state, 0);
    184     R300_INIT_ATOM(vs_constants, 0);
    185     R300_INIT_ATOM(clip_state, has_tcl ? 3 + (6 * 4) : 0);
    186     /* VAP, RS, GA, GB, SU, SC. */
    187     R300_INIT_ATOM(rs_block_state, 0);
    188     R300_INIT_ATOM(rs_state, 0);
    189     /* SC, US. */
    190     R300_INIT_ATOM(fb_state_pipelined, 8);
    191     /* US. */
    192     R300_INIT_ATOM(fs, 0);
    193     R300_INIT_ATOM(fs_rc_constant_state, 0);
    194     R300_INIT_ATOM(fs_constants, 0);
    195     /* TX. */
    196     R300_INIT_ATOM(texture_cache_inval, 2);
    197     R300_INIT_ATOM(textures_state, 0);
    198     /* HiZ Clear */
    199     R300_INIT_ATOM(hiz_clear, r300->screen->caps.hiz_ram > 0 ? 4 : 0);
    200     /* zmask clear */
    201     R300_INIT_ATOM(zmask_clear, r300->screen->caps.zmask_ram > 0 ? 4 : 0);
    202     /* ZB (unpipelined), SU. */
    203     R300_INIT_ATOM(query_start, 4);
    204 
    205     /* Replace emission functions for r500. */
    206     if (is_r500) {
    207         r300->fs.emit = r500_emit_fs;
    208         r300->fs_rc_constant_state.emit = r500_emit_fs_rc_constant_state;
    209         r300->fs_constants.emit = r500_emit_fs_constants;
    210     }
    211 
    212     /* Some non-CSO atoms need explicit space to store the state locally. */
    213     R300_ALLOC_ATOM(aa_state, r300_aa_state);
    214     R300_ALLOC_ATOM(blend_color_state, r300_blend_color_state);
    215     R300_ALLOC_ATOM(clip_state, r300_clip_state);
    216     R300_ALLOC_ATOM(hyperz_state, r300_hyperz_state);
    217     R300_ALLOC_ATOM(invariant_state, r300_invariant_state);
    218     R300_ALLOC_ATOM(textures_state, r300_textures_state);
    219     R300_ALLOC_ATOM(vap_invariant_state, r300_vap_invariant_state);
    220     R300_ALLOC_ATOM(viewport_state, r300_viewport_state);
    221     R300_ALLOC_ATOM(ztop_state, r300_ztop_state);
    222     R300_ALLOC_ATOM(fb_state, pipe_framebuffer_state);
    223     R300_ALLOC_ATOM(gpu_flush, pipe_framebuffer_state);
    224     R300_ALLOC_ATOM(scissor_state, pipe_scissor_state);
    225     R300_ALLOC_ATOM(rs_block_state, r300_rs_block);
    226     R300_ALLOC_ATOM(fs_constants, r300_constant_buffer);
    227     R300_ALLOC_ATOM(vs_constants, r300_constant_buffer);
    228     if (!r300->screen->caps.has_tcl) {
    229         R300_ALLOC_ATOM(vertex_stream_state, r300_vertex_stream_state);
    230     }
    231 
    232     /* Some non-CSO atoms don't use the state pointer. */
    233     r300->fb_state_pipelined.allow_null_state = TRUE;
    234     r300->fs_rc_constant_state.allow_null_state = TRUE;
    235     r300->pvs_flush.allow_null_state = TRUE;
    236     r300->query_start.allow_null_state = TRUE;
    237     r300->texture_cache_inval.allow_null_state = TRUE;
    238 
    239     /* Some states must be marked as dirty here to properly set up
    240      * hardware in the first command stream. */
    241     r300_mark_atom_dirty(r300, &r300->invariant_state);
    242     r300_mark_atom_dirty(r300, &r300->pvs_flush);
    243     r300_mark_atom_dirty(r300, &r300->vap_invariant_state);
    244     r300_mark_atom_dirty(r300, &r300->texture_cache_inval);
    245     r300_mark_atom_dirty(r300, &r300->textures_state);
    246 
    247     return TRUE;
    248 }
    249 
    250 /* Not every state tracker calls every driver function before the first draw
    251  * call and we must initialize the command buffers somehow. */
    252 static void r300_init_states(struct pipe_context *pipe)
    253 {
    254     struct r300_context *r300 = r300_context(pipe);
    255     struct pipe_blend_color bc = {{0}};
    256     struct pipe_clip_state cs = {{{0}}};
    257     struct pipe_scissor_state ss = {0};
    258     struct r300_gpu_flush *gpuflush =
    259             (struct r300_gpu_flush*)r300->gpu_flush.state;
    260     struct r300_vap_invariant_state *vap_invariant =
    261             (struct r300_vap_invariant_state*)r300->vap_invariant_state.state;
    262     struct r300_invariant_state *invariant =
    263             (struct r300_invariant_state*)r300->invariant_state.state;
    264 
    265     CB_LOCALS;
    266 
    267     pipe->set_blend_color(pipe, &bc);
    268     pipe->set_clip_state(pipe, &cs);
    269     pipe->set_scissor_state(pipe, &ss);
    270 
    271     /* Initialize the GPU flush. */
    272     {
    273         BEGIN_CB(gpuflush->cb_flush_clean, 6);
    274 
    275         /* Flush and free renderbuffer caches. */
    276         OUT_CB_REG(R300_RB3D_DSTCACHE_CTLSTAT,
    277             R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS |
    278             R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
    279         OUT_CB_REG(R300_ZB_ZCACHE_CTLSTAT,
    280             R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
    281             R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
    282 
    283         /* Wait until the GPU is idle.
    284          * This fixes random pixels sometimes appearing probably caused
    285          * by incomplete rendering. */
    286         OUT_CB_REG(RADEON_WAIT_UNTIL, RADEON_WAIT_3D_IDLECLEAN);
    287         END_CB;
    288     }
    289 
    290     /* Initialize the VAP invariant state. */
    291     {
    292         BEGIN_CB(vap_invariant->cb, r300->vap_invariant_state.size);
    293         OUT_CB_REG(VAP_PVS_VTX_TIMEOUT_REG, 0xffff);
    294         OUT_CB_REG_SEQ(R300_VAP_GB_VERT_CLIP_ADJ, 4);
    295         OUT_CB_32F(1.0);
    296         OUT_CB_32F(1.0);
    297         OUT_CB_32F(1.0);
    298         OUT_CB_32F(1.0);
    299         OUT_CB_REG(R300_VAP_PSC_SGN_NORM_CNTL, R300_SGN_NORM_NO_ZERO);
    300 
    301         if (r300->screen->caps.is_r500) {
    302             OUT_CB_REG(R500_VAP_TEX_TO_COLOR_CNTL, 0);
    303         }
    304         END_CB;
    305     }
    306 
    307     /* Initialize the invariant state. */
    308     {
    309         BEGIN_CB(invariant->cb, r300->invariant_state.size);
    310         OUT_CB_REG(R300_GB_SELECT, 0);
    311         OUT_CB_REG(R300_FG_FOG_BLEND, 0);
    312         OUT_CB_REG(R300_GA_OFFSET, 0);
    313         OUT_CB_REG(R300_SU_TEX_WRAP, 0);
    314         OUT_CB_REG(R300_SU_DEPTH_SCALE, 0x4B7FFFFF);
    315         OUT_CB_REG(R300_SU_DEPTH_OFFSET, 0);
    316         OUT_CB_REG(R300_SC_EDGERULE, 0x2DA49525);
    317         OUT_CB_REG(R300_SC_SCREENDOOR, 0xffffff);
    318 
    319         if (r300->screen->caps.is_rv350) {
    320             OUT_CB_REG(R500_RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD, 0x01010101);
    321             OUT_CB_REG(R500_RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD, 0xFEFEFEFE);
    322         }
    323 
    324         if (r300->screen->caps.is_r500) {
    325             OUT_CB_REG(R500_GA_COLOR_CONTROL_PS3, 0);
    326             OUT_CB_REG(R500_SU_TEX_WRAP_PS3, 0);
    327         }
    328         END_CB;
    329     }
    330 
    331     /* Initialize the hyperz state. */
    332     {
    333         struct r300_hyperz_state *hyperz =
    334             (struct r300_hyperz_state*)r300->hyperz_state.state;
    335         BEGIN_CB(&hyperz->cb_flush_begin, r300->hyperz_state.size);
    336         OUT_CB_REG(R300_ZB_ZCACHE_CTLSTAT,
    337                    R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
    338         OUT_CB_REG(R300_ZB_BW_CNTL, 0);
    339         OUT_CB_REG(R300_ZB_DEPTHCLEARVALUE, 0);
    340         OUT_CB_REG(R300_SC_HYPERZ, R300_SC_HYPERZ_ADJ_2);
    341 
    342         if (r300->screen->caps.is_r500 ||
    343             (r300->screen->caps.is_rv350 &&
    344              r300->screen->info.drm_minor >= 6)) {
    345             OUT_CB_REG(R300_GB_Z_PEQ_CONFIG, 0);
    346         }
    347         END_CB;
    348     }
    349 }
    350 
    351 struct pipe_context* r300_create_context(struct pipe_screen* screen,
    352                                          void *priv)
    353 {
    354     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
    355     struct r300_screen* r300screen = r300_screen(screen);
    356     struct radeon_winsys *rws = r300screen->rws;
    357 
    358     if (!r300)
    359         return NULL;
    360 
    361     r300->rws = rws;
    362     r300->screen = r300screen;
    363 
    364     r300->context.screen = screen;
    365     r300->context.priv = priv;
    366 
    367     r300->context.destroy = r300_destroy_context;
    368 
    369     util_slab_create(&r300->pool_transfers,
    370                      sizeof(struct pipe_transfer), 64,
    371                      UTIL_SLAB_SINGLETHREADED);
    372 
    373     r300->cs = rws->cs_create(rws);
    374     if (r300->cs == NULL)
    375         goto fail;
    376 
    377     if (!r300screen->caps.has_tcl) {
    378         /* Create a Draw. This is used for SW TCL. */
    379         r300->draw = draw_create(&r300->context);
    380         if (r300->draw == NULL)
    381             goto fail;
    382         /* Enable our renderer. */
    383         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
    384         /* Disable converting points/lines to triangles. */
    385         draw_wide_line_threshold(r300->draw, 10000000.f);
    386         draw_wide_point_threshold(r300->draw, 10000000.f);
    387         draw_wide_point_sprites(r300->draw, FALSE);
    388         draw_enable_line_stipple(r300->draw, TRUE);
    389         draw_enable_point_sprites(r300->draw, FALSE);
    390     }
    391 
    392     if (!r300_setup_atoms(r300))
    393         goto fail;
    394 
    395     r300_init_blit_functions(r300);
    396     r300_init_flush_functions(r300);
    397     r300_init_query_functions(r300);
    398     r300_init_state_functions(r300);
    399     r300_init_resource_functions(r300);
    400     r300_init_render_functions(r300);
    401     r300_init_states(&r300->context);
    402 
    403     r300->context.create_video_decoder = vl_create_decoder;
    404     r300->context.create_video_buffer = vl_video_buffer_create;
    405 
    406     if (r300screen->caps.has_tcl) {
    407         r300->uploader = u_upload_create(&r300->context, 256 * 1024, 4,
    408                                          PIPE_BIND_INDEX_BUFFER);
    409     }
    410 
    411     r300->blitter = util_blitter_create(&r300->context);
    412     if (r300->blitter == NULL)
    413         goto fail;
    414     r300->blitter->draw_rectangle = r300_blitter_draw_rectangle;
    415 
    416     rws->cs_set_flush_callback(r300->cs, r300_flush_callback, r300);
    417 
    418     /* The KIL opcode needs the first texture unit to be enabled
    419      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
    420      * dummy texture there. */
    421     if (!r300->screen->caps.is_r500) {
    422         struct pipe_resource *tex;
    423         struct pipe_resource rtempl = {{0}};
    424         struct pipe_sampler_view vtempl = {{0}};
    425 
    426         rtempl.target = PIPE_TEXTURE_2D;
    427         rtempl.format = PIPE_FORMAT_I8_UNORM;
    428         rtempl.bind = PIPE_BIND_SAMPLER_VIEW;
    429         rtempl.usage = PIPE_USAGE_IMMUTABLE;
    430         rtempl.width0 = 1;
    431         rtempl.height0 = 1;
    432         rtempl.depth0 = 1;
    433         tex = screen->resource_create(screen, &rtempl);
    434 
    435         u_sampler_view_default_template(&vtempl, tex, tex->format);
    436 
    437         r300->texkill_sampler = (struct r300_sampler_view*)
    438             r300->context.create_sampler_view(&r300->context, tex, &vtempl);
    439 
    440         pipe_resource_reference(&tex, NULL);
    441     }
    442 
    443     if (r300screen->caps.has_tcl) {
    444         struct pipe_resource vb;
    445         memset(&vb, 0, sizeof(vb));
    446         vb.target = PIPE_BUFFER;
    447         vb.format = PIPE_FORMAT_R8_UNORM;
    448         vb.bind = PIPE_BIND_VERTEX_BUFFER;
    449         vb.usage = PIPE_USAGE_IMMUTABLE;
    450         vb.width0 = sizeof(float) * 16;
    451         vb.height0 = 1;
    452         vb.depth0 = 1;
    453 
    454         r300->dummy_vb.buffer = screen->resource_create(screen, &vb);
    455     }
    456 
    457     {
    458         struct pipe_depth_stencil_alpha_state dsa;
    459         memset(&dsa, 0, sizeof(dsa));
    460         dsa.depth.writemask = 1;
    461 
    462         r300->dsa_decompress_zmask =
    463             r300->context.create_depth_stencil_alpha_state(&r300->context,
    464                                                            &dsa);
    465     }
    466 
    467     r300->hyperz_time_of_last_flush = os_time_get();
    468 
    469     /* Print driver info. */
    470 #ifdef DEBUG
    471     {
    472 #else
    473     if (DBG_ON(r300, DBG_INFO)) {
    474 #endif
    475         fprintf(stderr,
    476                 "r300: DRM version: %d.%d.%d, Name: %s, ID: 0x%04x, GB: %d, Z: %d\n"
    477                 "r300: GART size: %d MB, VRAM size: %d MB\n"
    478                 "r300: AA compression RAM: %s, Z compression RAM: %s, HiZ RAM: %s\n",
    479                 r300->screen->info.drm_major,
    480                 r300->screen->info.drm_minor,
    481                 r300->screen->info.drm_patchlevel,
    482                 screen->get_name(screen),
    483                 r300->screen->info.pci_id,
    484                 r300->screen->info.r300_num_gb_pipes,
    485                 r300->screen->info.r300_num_z_pipes,
    486                 r300->screen->info.gart_size >> 20,
    487                 r300->screen->info.vram_size >> 20,
    488                 "YES", /* XXX really? */
    489                 r300->screen->caps.zmask_ram ? "YES" : "NO",
    490                 r300->screen->caps.hiz_ram ? "YES" : "NO");
    491     }
    492 
    493     return &r300->context;
    494 
    495 fail:
    496     r300_destroy_context(&r300->context);
    497     return NULL;
    498 }
    499