diff options
Diffstat (limited to 'src/wld/intel/batch.c')
| -rw-r--r-- | src/wld/intel/batch.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/wld/intel/batch.c b/src/wld/intel/batch.c new file mode 100644 index 0000000..61d9ecf --- /dev/null +++ b/src/wld/intel/batch.c @@ -0,0 +1,99 @@ +/* wld: intel/batch.c + * + * Copyright (c) 2013, 2014 Michael Forney + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "batch.h" +#include "mi.h" + +#include <i915_drm.h> +#include <stdlib.h> + +static const struct intel_device_info device_info_i965 = { .gen = 4 }; +static const struct intel_device_info device_info_g4x = { .gen = 4 }; +static const struct intel_device_info device_info_ilk = { .gen = 5 }; +static const struct intel_device_info device_info_snb_gt1 = { .gen = 6 }; +static const struct intel_device_info device_info_snb_gt2 = { .gen = 6 }; +static const struct intel_device_info device_info_ivb_gt1 = { .gen = 7 }; +static const struct intel_device_info device_info_ivb_gt2 = { .gen = 7 }; +static const struct intel_device_info device_info_byt = { .gen = 7 }; +static const struct intel_device_info device_info_hsw_gt1 = { .gen = 7 }; +static const struct intel_device_info device_info_hsw_gt2 = { .gen = 7 }; +static const struct intel_device_info device_info_hsw_gt3 = { .gen = 7 }; + +static const struct intel_device_info * device_info(int device_id) +{ + switch (device_id) + { +#define CHIPSET(device_id, type, name) \ + case device_id: return &device_info_ ## type; +#include "i965_pci_ids.h" +#undef CHIPSET + default: return NULL; + } +} + +bool intel_batch_initialize(struct intel_batch * batch, + drm_intel_bufmgr * bufmgr) +{ + int device_id = drm_intel_bufmgr_gem_get_devid(bufmgr); + + batch->command_count = 0; + batch->device_info = device_info(device_id); + + if (!batch->device_info) + return false; + + /* Alignment argument (4096) is not used */ + batch->bo = drm_intel_bo_alloc(bufmgr, "batchbuffer", + sizeof batch->commands, 4096); + + if (!batch->bo) + return false; + + return true; +} + +void intel_batch_finalize(struct intel_batch * batch) +{ + drm_intel_bo_unreference(batch->bo); +} + +void intel_batch_flush(struct intel_batch * batch) +{ + if (batch->command_count == 0) + return; + + intel_batch_add_dword(batch, MI_BATCH_BUFFER_END); + + /* Pad the batch buffer to the next quad-word. */ + if (batch->command_count & 1) + intel_batch_add_dword(batch, MI_NOOP); + + drm_intel_bo_subdata(batch->bo, 0, batch->command_count << 2, + batch->commands); + drm_intel_bo_mrb_exec(batch->bo, batch->command_count << 2, NULL, 0, 0, + batch->device_info->gen >= 6 ? I915_EXEC_BLT + : I915_EXEC_DEFAULT); + drm_intel_gem_bo_clear_relocs(batch->bo, 0); + batch->command_count = 0; +} + |