Home | History | Annotate | Download | only in r300 
      1 /*
      2  * Copyright 2008 Corbin Simpson <MostAwesomeDude (at) gmail.com>
      3  * Copyright 2010 Marek Olk <maraeo (at) gmail.com>
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a
      6  * copy of this software and associated documentation files (the "Software"),
      7  * to deal in the Software without restriction, including without limitation
      8  * on the rights to use, copy, modify, merge, publish, distribute, sub
      9  * license, and/or sell copies of the Software, and to permit persons to whom
     10  * the Software is furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the next
     13  * paragraph) shall be included in all copies or substantial portions of the
     14  * Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
     23 
     24 #include "draw/draw_context.h"
     25 #include "draw/draw_private.h"
     26 
     27 #include "util/u_simple_list.h"
     28 #include "util/u_upload_mgr.h"
     29 
     30 #include "os/os_time.h"
     31 
     32 #include "r300_context.h"
     33 #include "r300_cs.h"
     34 #include "r300_emit.h"
     35 
     36 
     37 static void r300_flush_and_cleanup(struct r300_context *r300, unsigned flags)
     38 {
     39     struct r300_atom *atom;
     40 
     41     r300_emit_hyperz_end(r300);
     42     r300_emit_query_end(r300);
     43     if (r300->screen->caps.is_r500)
     44         r500_emit_index_bias(r300, 0);
     45 
     46     r300->flush_counter++;
     47     r300->rws->cs_flush(r300->cs, flags);
     48     r300->dirty_hw = 0;
     49 
     50     /* New kitchen sink, baby. */
     51     foreach_atom(r300, atom) {
     52         if (atom->state || atom->allow_null_state) {
     53             r300_mark_atom_dirty(r300, atom);
     54         }
     55     }
     56     r300->vertex_arrays_dirty = TRUE;
     57 
     58     /* Unmark HWTCL state for SWTCL. */
     59     if (!r300->screen->caps.has_tcl) {
     60         r300->vs_state.dirty = FALSE;
     61         r300->vs_constants.dirty = FALSE;
     62         r300->clip_state.dirty = FALSE;
     63     }
     64 }
     65 
     66 void r300_flush(struct pipe_context *pipe,
     67                 unsigned flags,
     68                 struct pipe_fence_handle **fence)
     69 {
     70     struct r300_context *r300 = r300_context(pipe);
     71     struct pb_buffer **rfence = (struct pb_buffer**)fence;
     72 
     73     if (r300->draw && !r300->draw_vbo_locked)
     74 	r300_draw_flush_vbuf(r300);
     75 
     76     if (r300->screen->info.drm_minor >= 12) {
     77         flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
     78     }
     79 
     80     if (rfence) {
     81         /* Create a fence, which is a dummy BO. */
     82         *rfence = r300->rws->buffer_create(r300->rws, 1, 1,
     83                                            PIPE_BIND_CUSTOM,
     84                                            RADEON_DOMAIN_GTT);
     85         /* Add the fence as a dummy relocation. */
     86         r300->rws->cs_add_reloc(r300->cs,
     87                                 r300->rws->buffer_get_cs_handle(*rfence),
     88                                 RADEON_USAGE_READWRITE, RADEON_DOMAIN_GTT);
     89     }
     90 
     91     if (r300->dirty_hw) {
     92         r300_flush_and_cleanup(r300, flags);
     93     } else {
     94         if (rfence) {
     95             /* We have to create a fence object, but the command stream is empty
     96              * and we cannot emit an empty CS. Let's write to some reg. */
     97             CS_LOCALS(r300);
     98             OUT_CS_REG(RB3D_COLOR_CHANNEL_MASK, 0);
     99             r300->rws->cs_flush(r300->cs, flags);
    100         } else {
    101             /* Even if hw is not dirty, we should at least reset the CS in case
    102              * the space checking failed for the first draw operation. */
    103             r300->rws->cs_flush(r300->cs, flags);
    104         }
    105     }
    106 
    107     /* Update Hyper-Z status. */
    108     if (r300->num_z_clears) {
    109         r300->hyperz_time_of_last_flush = os_time_get();
    110     } else if (!r300->hyperz_time_of_last_flush > 2000000) {
    111         /* 2 seconds without a Z clear pretty much means a dead context
    112          * for HyperZ. */
    113 
    114         r300->hiz_in_use = FALSE;
    115 
    116         /* Decompress Z buffer. */
    117         if (r300->zmask_in_use) {
    118             if (r300->locked_zbuffer) {
    119                 r300_decompress_zmask_locked(r300);
    120             } else {
    121                 r300_decompress_zmask(r300);
    122             }
    123 
    124             r300_flush_and_cleanup(r300, flags);
    125         }
    126 
    127         /* Release HyperZ. */
    128         r300->rws->cs_request_feature(r300->cs, RADEON_FID_R300_HYPERZ_ACCESS,
    129                                       FALSE);
    130     }
    131     r300->num_z_clears = 0;
    132 }
    133 
    134 static void r300_flush_wrapped(struct pipe_context *pipe,
    135                                struct pipe_fence_handle **fence)
    136 {
    137     r300_flush(pipe, 0, fence);
    138 }
    139 
    140 void r300_init_flush_functions(struct r300_context* r300)
    141 {
    142     r300->context.flush = r300_flush_wrapped;
    143 }
    144