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      1 /**********************************************************
      2  * Copyright 2009-2015 VMware, Inc.  All rights reserved.
      3  *
      4  * Permission is hereby granted, free of charge, to any person
      5  * obtaining a copy of this software and associated documentation
      6  * files (the "Software"), to deal in the Software without
      7  * restriction, including without limitation the rights to use, copy,
      8  * modify, merge, publish, distribute, sublicense, and/or sell copies
      9  * of the Software, and to permit persons to whom the Software is
     10  * furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice shall be
     13  * included in all copies or substantial portions of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     22  * SOFTWARE.
     23  *
     24  **********************************************************/
     25 
     26 
     27 #include "vmw_screen.h"
     28 
     29 #include "vmw_buffer.h"
     30 #include "vmw_fence.h"
     31 
     32 #include "pipebuffer/pb_buffer.h"
     33 #include "pipebuffer/pb_bufmgr.h"
     34 
     35 /**
     36  * vmw_pools_cleanup - Destroy the buffer pools.
     37  *
     38  * @vws: pointer to a struct vmw_winsys_screen.
     39  */
     40 void
     41 vmw_pools_cleanup(struct vmw_winsys_screen *vws)
     42 {
     43    if (vws->pools.mob_shader_slab_fenced)
     44       vws->pools.mob_shader_slab_fenced->destroy
     45          (vws->pools.mob_shader_slab_fenced);
     46    if (vws->pools.mob_shader_slab)
     47       vws->pools.mob_shader_slab->destroy(vws->pools.mob_shader_slab);
     48    if (vws->pools.mob_fenced)
     49       vws->pools.mob_fenced->destroy(vws->pools.mob_fenced);
     50    if (vws->pools.mob_cache)
     51       vws->pools.mob_cache->destroy(vws->pools.mob_cache);
     52 
     53    if (vws->pools.query_fenced)
     54       vws->pools.query_fenced->destroy(vws->pools.query_fenced);
     55    if (vws->pools.query_mm)
     56       vws->pools.query_mm->destroy(vws->pools.query_mm);
     57 
     58    if(vws->pools.gmr_fenced)
     59       vws->pools.gmr_fenced->destroy(vws->pools.gmr_fenced);
     60    if (vws->pools.gmr_mm)
     61       vws->pools.gmr_mm->destroy(vws->pools.gmr_mm);
     62    if (vws->pools.gmr_slab_fenced)
     63       vws->pools.gmr_slab_fenced->destroy(vws->pools.gmr_slab_fenced);
     64    if (vws->pools.gmr_slab)
     65       vws->pools.gmr_slab->destroy(vws->pools.gmr_slab);
     66 
     67    if(vws->pools.gmr)
     68       vws->pools.gmr->destroy(vws->pools.gmr);
     69 }
     70 
     71 
     72 /**
     73  * vmw_query_pools_init - Create a pool of query buffers.
     74  *
     75  * @vws: Pointer to a struct vmw_winsys_screen.
     76  *
     77  * Typically this pool should be created on demand when we
     78  * detect that the app will be using queries. There's nothing
     79  * special with this pool other than the backing kernel buffer sizes,
     80  * which are limited to 8192.
     81  * If there is a performance issue with allocation and freeing of the
     82  * query slabs, it should be easily fixable by allocating them out
     83  * of a buffer cache.
     84  */
     85 boolean
     86 vmw_query_pools_init(struct vmw_winsys_screen *vws)
     87 {
     88    struct pb_desc desc;
     89 
     90    desc.alignment = 16;
     91    desc.usage = ~(VMW_BUFFER_USAGE_SHARED | VMW_BUFFER_USAGE_SYNC);
     92 
     93    vws->pools.query_mm = pb_slab_range_manager_create(vws->pools.gmr, 16, 128,
     94                                                       VMW_QUERY_POOL_SIZE,
     95                                                       &desc);
     96    if (!vws->pools.query_mm)
     97       return FALSE;
     98 
     99    vws->pools.query_fenced = simple_fenced_bufmgr_create(
    100       vws->pools.query_mm, vws->fence_ops);
    101 
    102    if(!vws->pools.query_fenced)
    103       goto out_no_query_fenced;
    104 
    105    return TRUE;
    106 
    107   out_no_query_fenced:
    108    vws->pools.query_mm->destroy(vws->pools.query_mm);
    109    return FALSE;
    110 }
    111 
    112 /**
    113  * vmw_mob_pool_init - Create a pool of fenced kernel buffers.
    114  *
    115  * @vws: Pointer to a struct vmw_winsys_screen.
    116  *
    117  * Typically this pool should be created on demand when we
    118  * detect that the app will be using MOB buffers.
    119  */
    120 boolean
    121 vmw_mob_pools_init(struct vmw_winsys_screen *vws)
    122 {
    123    struct pb_desc desc;
    124 
    125    vws->pools.mob_cache =
    126       pb_cache_manager_create(vws->pools.gmr, 100000, 2.0f,
    127                               VMW_BUFFER_USAGE_SHARED,
    128                               64 * 1024 * 1024);
    129    if (!vws->pools.mob_cache)
    130       return FALSE;
    131 
    132    vws->pools.mob_fenced =
    133       simple_fenced_bufmgr_create(vws->pools.mob_cache,
    134                                   vws->fence_ops);
    135    if(!vws->pools.mob_fenced)
    136       goto out_no_mob_fenced;
    137 
    138    desc.alignment = 64;
    139    desc.usage = ~(SVGA_BUFFER_USAGE_PINNED | VMW_BUFFER_USAGE_SHARED |
    140                   VMW_BUFFER_USAGE_SYNC);
    141    vws->pools.mob_shader_slab =
    142       pb_slab_range_manager_create(vws->pools.mob_cache,
    143                                    64,
    144                                    8192,
    145                                    16384,
    146                                    &desc);
    147    if(!vws->pools.mob_shader_slab)
    148       goto out_no_mob_shader_slab;
    149 
    150    vws->pools.mob_shader_slab_fenced =
    151       simple_fenced_bufmgr_create(vws->pools.mob_shader_slab,
    152 				  vws->fence_ops);
    153    if(!vws->pools.mob_fenced)
    154       goto out_no_mob_shader_slab_fenced;
    155 
    156    return TRUE;
    157 
    158  out_no_mob_shader_slab_fenced:
    159    vws->pools.mob_shader_slab->destroy(vws->pools.mob_shader_slab);
    160  out_no_mob_shader_slab:
    161    vws->pools.mob_fenced->destroy(vws->pools.mob_fenced);
    162  out_no_mob_fenced:
    163    vws->pools.mob_cache->destroy(vws->pools.mob_cache);
    164    return FALSE;
    165 }
    166 
    167 /**
    168  * vmw_pools_init - Create a pool of GMR buffers.
    169  *
    170  * @vws: Pointer to a struct vmw_winsys_screen.
    171  */
    172 boolean
    173 vmw_pools_init(struct vmw_winsys_screen *vws)
    174 {
    175    struct pb_desc desc;
    176 
    177    vws->pools.gmr = vmw_gmr_bufmgr_create(vws);
    178    if(!vws->pools.gmr)
    179       goto error;
    180 
    181    if ((vws->base.have_gb_objects && vws->base.have_gb_dma) ||
    182        !vws->base.have_gb_objects) {
    183       /*
    184        * A managed pool for DMA buffers.
    185        */
    186       vws->pools.gmr_mm = mm_bufmgr_create(vws->pools.gmr,
    187                                            VMW_GMR_POOL_SIZE,
    188                                            12 /* 4096 alignment */);
    189       if(!vws->pools.gmr_mm)
    190          goto error;
    191 
    192       vws->pools.gmr_fenced = simple_fenced_bufmgr_create
    193          (vws->pools.gmr_mm, vws->fence_ops);
    194 
    195 #ifdef DEBUG
    196       vws->pools.gmr_fenced = pb_debug_manager_create(vws->pools.gmr_fenced,
    197                                                       4096,
    198                                                       4096);
    199 #endif
    200       if(!vws->pools.gmr_fenced)
    201          goto error;
    202 
    203    /*
    204     * The slab pool allocates buffers directly from the kernel except
    205     * for very small buffers which are allocated from a slab in order
    206     * not to waste memory, since a kernel buffer is a minimum 4096 bytes.
    207     *
    208     * Here we use it only for emergency in the case our pre-allocated
    209     * managed buffer pool runs out of memory.
    210     */
    211 
    212       desc.alignment = 64;
    213       desc.usage = ~(SVGA_BUFFER_USAGE_PINNED | SVGA_BUFFER_USAGE_SHADER |
    214                      VMW_BUFFER_USAGE_SHARED | VMW_BUFFER_USAGE_SYNC);
    215       vws->pools.gmr_slab = pb_slab_range_manager_create(vws->pools.gmr,
    216                                                          64,
    217                                                          8192,
    218                                                          16384,
    219                                                          &desc);
    220       if (!vws->pools.gmr_slab)
    221          goto error;
    222 
    223       vws->pools.gmr_slab_fenced =
    224          simple_fenced_bufmgr_create(vws->pools.gmr_slab, vws->fence_ops);
    225 
    226       if (!vws->pools.gmr_slab_fenced)
    227          goto error;
    228    }
    229 
    230    vws->pools.query_fenced = NULL;
    231    vws->pools.query_mm = NULL;
    232    vws->pools.mob_cache = NULL;
    233 
    234    if (vws->base.have_gb_objects && !vmw_mob_pools_init(vws))
    235       goto error;
    236 
    237    return TRUE;
    238 
    239 error:
    240    vmw_pools_cleanup(vws);
    241    return FALSE;
    242 }
    243