src/gallium/drivers/freedreno/a6xx/fd6_context.h

   1 /*
   2  * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
   3  * Copyright © 2018 Google, Inc.
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  * Authors:
  25  *    Rob Clark <robclark@freedesktop.org>
  26  */
  27
  28 #ifndef FD6_CONTEXT_H_
  29 #define FD6_CONTEXT_H_
  30
  31 #include "util/u_upload_mgr.h"
  32
  33 #include "freedreno_drmif.h"
  34
  35 #include "freedreno_context.h"
  36
  37 #include "ir3_shader.h"
  38
  39 #include "a6xx.xml.h"
  40
  41 struct fd6_context {
  42         struct fd_context base;
  43
  44         struct fd_bo *vs_pvt_mem, *fs_pvt_mem;
  45
  46         /* This only needs to be 4 * num_of_pipes bytes (ie. 32 bytes).  We
  47          * could combine it with another allocation.
  48          */
  49         struct fd_bo *vsc_size_mem;
  50
  51         /* TODO not sure what this is for.. probably similar to
  52          * CACHE_FLUSH_TS on kernel side, where value gets written
  53          * to this address synchronized w/ 3d (ie. a way to
  54          * synchronize when the CP is running far ahead)
  55          */
  56         struct fd_bo *blit_mem;
  57
  58         struct u_upload_mgr *border_color_uploader;
  59         struct pipe_resource *border_color_buf;
  60
  61         /* if *any* of bits are set in {v,f}saturate_{s,t,r} */
  62         bool vsaturate, fsaturate;
  63
  64         /* bitmask of sampler which needs coords clamped for vertex
  65          * shader:
  66          */
  67         uint16_t vsaturate_s, vsaturate_t, vsaturate_r;
  68
  69         /* bitmask of sampler which needs coords clamped for frag
  70          * shader:
  71          */
  72         uint16_t fsaturate_s, fsaturate_t, fsaturate_r;
  73
  74         /* bitmask of samplers which need astc srgb workaround: */
  75         uint16_t vastc_srgb, fastc_srgb;
  76
  77         /* some state changes require a different shader variant.  Keep
  78          * track of this so we know when we need to re-emit shader state
  79          * due to variant change.  See fixup_shader_state()
  80          */
  81         struct ir3_shader_key last_key;
  82
  83         /* number of active samples-passed queries: */
  84         int samples_passed_queries;
  85
  86         /* cached state about current emitted shader program (3d): */
  87         unsigned max_loc;
  88 };
  89
  90 static inline struct fd6_context *
  91 fd6_context(struct fd_context *ctx)
  92 {
  93         return (struct fd6_context *)ctx;
  94 }
  95
  96 struct pipe_context *
  97 fd6_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags);
  98
  99 /* helper for places where we need to stall CP to wait for previous draws: */
 100 static inline void
 101 fd6_emit_flush(struct fd_context *ctx, struct fd_ringbuffer *ring)
 102 {
 103         OUT_PKT7(ring, CP_EVENT_WRITE, 4);
 104         OUT_RING(ring, CACHE_FLUSH_TS);
 105         OUT_RELOCW(ring, fd6_context(ctx)->blit_mem, 0, 0, 0);  /* ADDR_LO/HI */
 106         OUT_RING(ring, 0x00000000);
 107
 108         OUT_WFI5(ring);
 109 }
 110
 111 static inline void
 112 emit_marker6(struct fd_ringbuffer *ring, int scratch_idx)
 113 {
 114         extern unsigned marker_cnt;
 115         unsigned reg = REG_A6XX_CP_SCRATCH_REG(scratch_idx);
 116         OUT_PKT4(ring, reg, 1);
 117         OUT_RING(ring, ++marker_cnt);
 118 }
 119
 120 #endif /* FD6_CONTEXT_H_ */