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vk: Use a separate block pool and state stream for binding tables

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The binding table pointers packet only allows for a 16-bit binding table
address so all binding tables have to be in the first 64 KB of the surface
state BO.  We solve this by adding a slave block pool that pulls off the
first 64 KB worth of blocks and reserves them for binding tables.
This commit is contained in:
Jason Ekstrand 2015-05-18 19:56:32 -07:00
parent d24f8245db
commit 923691c70d
2 changed files with 15 additions and 1 deletions
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14
src/vulkan/device.c
View file

@ -321,6 +321,15 @@ VkResult anv_CreateDevice(
anv_block_pool_init(&device->instruction_block_pool, device, 2048);
anv_block_pool_init(&device->surface_state_block_pool, device, 2048);
/* Binding table pointers are only 16 bits so we have to make sure that
* they get allocated at the beginning of the surface state BO. To
* handle this, we create a separate block pool that works out of the
* first 64 KB of the surface state BO.
*/
anv_block_pool_init_slave(&device->binding_table_block_pool,
&device->surface_state_block_pool, 32);
anv_state_pool_init(&device->surface_state_pool,
&device->surface_state_block_pool);
@ -2077,6 +2086,8 @@ VkResult anv_CreateCommandBuffer(
goto fail_exec2_objects;
}
anv_state_stream_init(&cmd_buffer->binding_table_state_stream,
&device->binding_table_block_pool);
anv_state_stream_init(&cmd_buffer->surface_state_stream,
&device->surface_state_block_pool);
anv_state_stream_init(&cmd_buffer->dynamic_state_stream,
@ -2469,7 +2480,8 @@ flush_descriptor_sets(struct anv_cmd_buffer *cmd_buffer)
uint32_t size;
size = (bias + surface_count) * sizeof(uint32_t);
state = anv_state_stream_alloc(&cmd_buffer->surface_state_stream, size, 32);
state = anv_state_stream_alloc(&cmd_buffer->binding_table_state_stream,
size, 32);
memcpy(state.map, bindings->descriptors[s].surfaces, size);
for (uint32_t i = 0; i < layers; i++)

2
src/vulkan/private.h
View file

@ -293,6 +293,7 @@ struct anv_device {
struct anv_block_pool instruction_block_pool;
struct anv_block_pool surface_state_block_pool;
struct anv_block_pool binding_table_block_pool;
struct anv_state_pool surface_state_pool;
struct anv_clear_state clear_state;
@ -548,6 +549,7 @@ struct anv_cmd_buffer {
uint32_t bo_count;
struct anv_batch batch;
struct anv_state_stream binding_table_state_stream;
struct anv_state_stream surface_state_stream;
struct anv_state_stream dynamic_state_stream;