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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /********************************************************** |
| 2 | * Copyright 2009 VMware, Inc. All rights reserved. |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person |
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| 5 | * obtaining a copy of this software and associated documentation |
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| 6 | * files (the "Software"), to deal in the Software without |
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| 7 | * restriction, including without limitation the rights to use, copy, |
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| 8 | * modify, merge, publish, distribute, sublicense, and/or sell copies |
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| 9 | * of the Software, and to permit persons to whom the Software is |
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| 10 | * furnished to do so, subject to the following conditions: |
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| 11 | * |
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| 12 | * The above copyright notice and this permission notice shall be |
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| 13 | * included in all copies or substantial portions of the Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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| 18 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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| 19 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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| 20 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 21 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 22 | * SOFTWARE. |
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| 23 | * |
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| 24 | **********************************************************/ |
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| 25 | |||
| 26 | |||
| 27 | #include "vmw_screen.h" |
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| 28 | #include "vmw_fence.h" |
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| 29 | #include "vmw_context.h" |
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| 30 | |||
| 31 | #include "util/u_memory.h" |
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| 32 | #include "pipe/p_compiler.h" |
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| 33 | #include "util/u_hash_table.h" |
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| 34 | #include |
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| 35 | #include |
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| 36 | #include |
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| 37 | |||
| 38 | static struct util_hash_table *dev_hash = NULL; |
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| 39 | |||
| 40 | static int vmw_dev_compare(void *key1, void *key2) |
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| 41 | { |
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| 42 | return (major(*(dev_t *)key1) == major(*(dev_t *)key2) && |
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| 43 | minor(*(dev_t *)key1) == minor(*(dev_t *)key2)) ? 0 : 1; |
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| 44 | } |
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| 45 | |||
| 46 | static unsigned vmw_dev_hash(void *key) |
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| 47 | { |
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| 48 | return (major(*(dev_t *) key) << 16) | minor(*(dev_t *) key); |
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| 49 | } |
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| 50 | |||
| 51 | /* Called from vmw_drm_create_screen(), creates and initializes the |
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| 52 | * vmw_winsys_screen structure, which is the main entity in this |
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| 53 | * module. |
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| 54 | * First, check whether a vmw_winsys_screen object already exists for |
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| 55 | * this device, and in that case return that one, making sure that we |
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| 56 | * have our own file descriptor open to DRM. |
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| 57 | */ |
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| 58 | |||
| 59 | struct vmw_winsys_screen * |
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| 60 | vmw_winsys_create( int fd, boolean use_old_scanout_flag ) |
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| 61 | { |
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| 62 | struct vmw_winsys_screen *vws; |
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| 63 | struct stat stat_buf; |
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| 64 | |||
| 65 | if (dev_hash == NULL) { |
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| 66 | dev_hash = util_hash_table_create(vmw_dev_hash, vmw_dev_compare); |
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| 67 | if (dev_hash == NULL) |
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| 68 | return NULL; |
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| 69 | } |
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| 70 | |||
| 71 | if (fstat(fd, &stat_buf)) |
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| 72 | return NULL; |
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| 73 | |||
| 74 | vws = util_hash_table_get(dev_hash, &stat_buf.st_rdev); |
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| 75 | if (vws) { |
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| 76 | vws->open_count++; |
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| 77 | return vws; |
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| 78 | } |
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| 79 | |||
| 80 | vws = CALLOC_STRUCT(vmw_winsys_screen); |
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| 81 | if (!vws) |
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| 82 | goto out_no_vws; |
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| 83 | |||
| 84 | vws->device = stat_buf.st_rdev; |
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| 85 | vws->open_count = 1; |
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| 86 | vws->ioctl.drm_fd = dup(fd); |
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| 87 | vws->use_old_scanout_flag = use_old_scanout_flag; |
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| 88 | vws->base.have_gb_dma = TRUE; |
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| 89 | |||
| 90 | if (!vmw_ioctl_init(vws)) |
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| 91 | goto out_no_ioctl; |
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| 92 | |||
| 93 | vws->fence_ops = vmw_fence_ops_create(vws); |
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| 94 | if (!vws->fence_ops) |
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| 95 | goto out_no_fence_ops; |
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| 96 | |||
| 97 | if(!vmw_pools_init(vws)) |
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| 98 | goto out_no_pools; |
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| 99 | |||
| 100 | if (!vmw_winsys_screen_init_svga(vws)) |
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| 101 | goto out_no_svga; |
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| 102 | |||
| 103 | if (util_hash_table_set(dev_hash, &vws->device, vws) != PIPE_OK) |
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| 104 | goto out_no_hash_insert; |
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| 105 | |||
| 106 | return vws; |
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| 107 | out_no_hash_insert: |
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| 108 | out_no_svga: |
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| 109 | vmw_pools_cleanup(vws); |
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| 110 | out_no_pools: |
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| 111 | vws->fence_ops->destroy(vws->fence_ops); |
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| 112 | out_no_fence_ops: |
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| 113 | vmw_ioctl_cleanup(vws); |
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| 114 | out_no_ioctl: |
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| 115 | close(vws->ioctl.drm_fd); |
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| 116 | FREE(vws); |
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| 117 | out_no_vws: |
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| 118 | return NULL; |
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| 119 | } |
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| 120 | |||
| 121 | void |
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| 122 | vmw_winsys_destroy(struct vmw_winsys_screen *vws) |
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| 123 | { |
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| 124 | if (--vws->open_count == 0) { |
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| 125 | util_hash_table_remove(dev_hash, &vws->device); |
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| 126 | vmw_pools_cleanup(vws); |
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| 127 | vws->fence_ops->destroy(vws->fence_ops); |
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| 128 | vmw_ioctl_cleanup(vws); |
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| 129 | close(vws->ioctl.drm_fd); |
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| 130 | FREE(vws); |
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| 131 | } |
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| 132 | } |