[Mesa-dev] [PATCH 2/2] anv: add support for VK_EXT_inline_uniform_block
Lionel Landwerlin
lionel.g.landwerlin at intel.com
Tue Sep 11 20:22:54 UTC 2018
This new extension adds an implicitly allocated block of uniforms into
the descriptors sets through a new descriptor type.
We implement this by having a single BO in the descriptor set pool
from which we source uniforms.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
---
src/intel/vulkan/anv_cmd_buffer.c | 3 +
src/intel/vulkan/anv_descriptor_set.c | 238 +++++++++++++++++-
src/intel/vulkan/anv_device.c | 22 ++
src/intel/vulkan/anv_extensions.py | 1 +
.../vulkan/anv_nir_apply_pipeline_layout.c | 52 ++++
src/intel/vulkan/anv_private.h | 33 +++
src/intel/vulkan/genX_cmd_buffer.c | 32 ++-
7 files changed, 367 insertions(+), 14 deletions(-)
diff --git a/src/intel/vulkan/anv_cmd_buffer.c b/src/intel/vulkan/anv_cmd_buffer.c
index 8ef71b0ed9c..b14be94f470 100644
--- a/src/intel/vulkan/anv_cmd_buffer.c
+++ b/src/intel/vulkan/anv_cmd_buffer.c
@@ -651,6 +651,7 @@ anv_isl_format_for_descriptor_type(VkDescriptorType type)
switch (type) {
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
return ISL_FORMAT_R32G32B32A32_FLOAT;
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
@@ -1039,6 +1040,8 @@ void anv_CmdPushDescriptorSetKHR(
}
break;
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
+ unreachable("Invalid descriptor type for push descriptors");
default:
break;
}
diff --git a/src/intel/vulkan/anv_descriptor_set.c b/src/intel/vulkan/anv_descriptor_set.c
index 3439f828900..2e5f2a1f288 100644
--- a/src/intel/vulkan/anv_descriptor_set.c
+++ b/src/intel/vulkan/anv_descriptor_set.c
@@ -26,8 +26,10 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#include <sys/mman.h>
#include "util/mesa-sha1.h"
+#include "vk_util.h"
#include "anv_private.h"
@@ -40,7 +42,8 @@ void anv_GetDescriptorSetLayoutSupport(
const VkDescriptorSetLayoutCreateInfo* pCreateInfo,
VkDescriptorSetLayoutSupport* pSupport)
{
- uint32_t surface_count[MESA_SHADER_STAGES] = { 0, };
+ int16_t surface_count[MESA_SHADER_STAGES] = { 0, };
+ int16_t inline_surface_indexes[MESA_SHADER_STAGES] = { -1, };
for (uint32_t b = 0; b < pCreateInfo->bindingCount; b++) {
const VkDescriptorSetLayoutBinding *binding = &pCreateInfo->pBindings[b];
@@ -50,6 +53,15 @@ void anv_GetDescriptorSetLayoutSupport(
/* There is no real limit on samplers */
break;
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
+ anv_foreach_stage(s, binding->stageFlags) {
+ if (inline_surface_indexes[s] < 0) {
+ inline_surface_indexes[s] = surface_count[s];
+ surface_count[s] += 1;
+ }
+ }
+ break;
+
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
if (binding->pImmutableSamplers) {
for (uint32_t i = 0; i < binding->descriptorCount; i++) {
@@ -118,6 +130,9 @@ VkResult anv_CreateDescriptorSetLayout(
memset(set_layout, 0, sizeof(*set_layout));
set_layout->ref_cnt = 1;
set_layout->binding_count = max_binding + 1;
+ set_layout->inline_blocks_descriptor_index = -1;
+ memset(set_layout->inline_blocks_surface_indexes,
+ -1, sizeof(set_layout->inline_blocks_surface_indexes));
for (uint32_t b = 0; b <= max_binding; b++) {
/* Initialize all binding_layout entries to -1 */
@@ -159,9 +174,24 @@ VkResult anv_CreateDescriptorSetLayout(
#ifndef NDEBUG
set_layout->binding[b].type = binding->descriptorType;
#endif
- set_layout->binding[b].array_size = binding->descriptorCount;
- set_layout->binding[b].descriptor_index = set_layout->size;
- set_layout->size += binding->descriptorCount;
+
+ if (binding->descriptorType == VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT) {
+ /* We only a single descriptor entry for all the inline uniforms. */
+ set_layout->binding[b].array_size = 1;
+ if (set_layout->inline_blocks_descriptor_index < 0) {
+ set_layout->binding[b].descriptor_index =
+ set_layout->inline_blocks_descriptor_index =
+ set_layout->size;
+ set_layout->size += 1;
+ } else {
+ set_layout->binding[b].descriptor_index =
+ set_layout->inline_blocks_descriptor_index;
+ }
+ } else {
+ set_layout->binding[b].array_size = binding->descriptorCount;
+ set_layout->binding[b].descriptor_index = set_layout->size;
+ set_layout->size += binding->descriptorCount;
+ }
switch (binding->descriptorType) {
case VK_DESCRIPTOR_TYPE_SAMPLER:
@@ -176,6 +206,24 @@ VkResult anv_CreateDescriptorSetLayout(
}
switch (binding->descriptorType) {
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
+ set_layout->binding[b].inline_block_offset = set_layout->inline_blocks_size;
+ set_layout->binding[b].inline_block_length = binding->descriptorCount;
+ set_layout->inline_blocks_size += binding->descriptorCount;
+
+ anv_foreach_stage(s, binding->stageFlags) {
+ if (set_layout->inline_blocks_surface_indexes[s] < 0) {
+ set_layout->binding[b].stage[s].surface_index =
+ set_layout->inline_blocks_surface_indexes[s] =
+ surface_count[s];
+ surface_count[s] += 1;
+ } else {
+ set_layout->binding[b].stage[s].surface_index =
+ set_layout->inline_blocks_surface_indexes[s];
+ }
+ }
+ break;
+
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
@@ -235,6 +283,12 @@ VkResult anv_CreateDescriptorSetLayout(
set_layout->shader_stages |= binding->stageFlags;
}
+ /* Align inline uniforms total size to 32 because we source the allocation
+ * from a single BO in the descriptor set pool and we want the alignment to
+ * match the push constant alignment constraint.
+ */
+ set_layout->inline_blocks_size = ALIGN(set_layout->inline_blocks_size, 32);
+
set_layout->buffer_count = buffer_count;
set_layout->dynamic_offset_count = dynamic_offset_count;
@@ -405,21 +459,45 @@ VkResult anv_CreateDescriptorPool(
ANV_FROM_HANDLE(anv_device, device, _device);
struct anv_descriptor_pool *pool;
+ vk_foreach_struct(ext, pCreateInfo->pNext) {
+ switch (ext->sType) {
+ case VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_INLINE_UNIFORM_BLOCK_CREATE_INFO_EXT:
+ /* Our driver doesn't need to know about this as we use a single
+ * binding table entry per stage if one of more inline descriptor
+ * blocks are used.
+ */
+ break;
+
+ default:
+ anv_debug_ignored_stype(ext->sType);
+ break;
+ }
+ }
+
uint32_t descriptor_count = 0;
uint32_t buffer_count = 0;
+ uint32_t inline_blocks_size = 0;
for (uint32_t i = 0; i < pCreateInfo->poolSizeCount; i++) {
switch (pCreateInfo->pPoolSizes[i].type) {
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
+ inline_blocks_size += pCreateInfo->pPoolSizes[i].descriptorCount;
+ break;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
buffer_count += pCreateInfo->pPoolSizes[i].descriptorCount;
+ /* Fallthrough */
default:
descriptor_count += pCreateInfo->pPoolSizes[i].descriptorCount;
break;
}
}
+ /* We'll need one more descriptor for inline uniforms. */
+ if (inline_blocks_size > 0)
+ descriptor_count += MIN2(pCreateInfo->maxSets, inline_blocks_size / 4);
+
const size_t pool_size =
pCreateInfo->maxSets * sizeof(struct anv_descriptor_set) +
descriptor_count * sizeof(struct anv_descriptor) +
@@ -435,6 +513,34 @@ VkResult anv_CreateDescriptorPool(
pool->next_set = 0;
pool->free_set_list = EMPTY;
+ pool->inline_blocks_size = inline_blocks_size;
+ pool->next_block = 0;
+ pool->free_block_list = EMPTY;
+
+ pool->inline_blocks_bo = NULL;
+ if (pool->inline_blocks_size > 0) {
+ struct anv_physical_device *pdevice = &device->instance->physicalDevice;
+ uint64_t bo_flags =
+ (pdevice->supports_48bit_addresses ? EXEC_OBJECT_SUPPORTS_48B_ADDRESS : 0) |
+ (pdevice->has_exec_async ? EXEC_OBJECT_ASYNC : 0) |
+ (pdevice->use_softpin ? EXEC_OBJECT_PINNED : 0);
+
+ VkResult result = anv_bo_cache_alloc(device, &device->bo_cache,
+ pool->inline_blocks_size,
+ bo_flags,
+ &pool->inline_blocks_bo);
+ if (result != VK_SUCCESS)
+ goto fail_iubo_alloc;
+
+ uint32_t gem_flags = !device->info.has_llc ? I915_MMAP_WC : 0;
+ void *map = anv_gem_mmap(device, pool->inline_blocks_bo->gem_handle,
+ 0, pool->inline_blocks_bo->size, gem_flags);
+ if (map == MAP_FAILED)
+ goto fail_iubo_mmap;
+
+ pool->inline_blocks_bo->map = map;
+ }
+
anv_state_stream_init(&pool->surface_state_stream,
&device->surface_state_pool, 4096);
pool->surface_state_free_list = NULL;
@@ -442,6 +548,12 @@ VkResult anv_CreateDescriptorPool(
*pDescriptorPool = anv_descriptor_pool_to_handle(pool);
return VK_SUCCESS;
+
+fail_iubo_mmap:
+ anv_bo_cache_release(device, &device->bo_cache, pool->inline_blocks_bo);
+fail_iubo_alloc:
+ vk_free2(&device->alloc, pAllocator, pool);
+ return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
}
void anv_DestroyDescriptorPool(
@@ -455,6 +567,8 @@ void anv_DestroyDescriptorPool(
if (!pool)
return;
+ if (pool->inline_blocks_bo)
+ anv_bo_cache_release(device, &device->bo_cache, pool->inline_blocks_bo);
anv_state_stream_finish(&pool->surface_state_stream);
vk_free2(&device->alloc, pAllocator, pool);
}
@@ -469,6 +583,8 @@ VkResult anv_ResetDescriptorPool(
pool->next_set = 0;
pool->free_set_list = EMPTY;
+ pool->next_block = 0;
+ pool->free_block_list = EMPTY;
anv_state_stream_finish(&pool->surface_state_stream);
anv_state_stream_init(&pool->surface_state_stream,
&device->surface_state_pool, 4096);
@@ -496,6 +612,36 @@ struct surface_state_free_list_entry {
struct anv_state state;
};
+static struct anv_descriptor_set *
+anv_descriptor_inline_block_alloc(struct anv_descriptor_pool *pool,
+ struct anv_descriptor_set_layout *layout,
+ struct anv_descriptor_set *set)
+{
+ if (layout->inline_blocks_size == 0) {
+ set->inline_blocks = NULL;
+ return set;
+ }
+
+ if (layout->inline_blocks_size <= pool->inline_blocks_size - pool->next_block) {
+ set->inline_blocks = pool->inline_blocks_bo->map + pool->next_block;
+ pool->next_block += layout->inline_blocks_size;
+ return set;
+ }
+
+ struct pool_free_list_entry *entry;
+ uint32_t *link = &pool->free_block_list;
+ for (uint32_t f = pool->free_block_list; f != EMPTY; f = entry->next) {
+ entry = (struct pool_free_list_entry *) (pool->inline_blocks_bo->map + f);
+ if (layout->inline_blocks_size <= entry->size) {
+ *link = entry->next;
+ set->inline_blocks = entry;
+ return set;
+ }
+ }
+
+ return NULL;
+}
+
static struct anv_descriptor_set *
anv_descriptor_alloc(struct anv_descriptor_pool *pool,
struct anv_descriptor_set_layout *layout,
@@ -504,8 +650,10 @@ anv_descriptor_alloc(struct anv_descriptor_pool *pool,
struct anv_descriptor_set *set = NULL;
if (size <= pool->size - pool->next_set) {
- set = (struct anv_descriptor_set *) (pool->data + pool->next_set);
- pool->next_set += size;
+ set = anv_descriptor_inline_block_alloc(pool, layout,
+ (struct anv_descriptor_set *) (pool->data + pool->next_set));
+ if (set)
+ pool->next_set += size;
return set;
}
@@ -515,8 +663,10 @@ anv_descriptor_alloc(struct anv_descriptor_pool *pool,
entry = (struct pool_free_list_entry *) (pool->data + f);
if (size <= entry->size) {
uint32_t next = entry->next;
- set = (struct anv_descriptor_set *) entry;
- *link = next;
+ set = anv_descriptor_inline_block_alloc(pool, layout,
+ (struct anv_descriptor_set *) entry);
+ if (set)
+ *link = next;
return set;
}
link = &entry->next;
@@ -573,6 +723,18 @@ anv_descriptor_set_create(struct anv_device *device,
desc += layout->binding[b].array_size;
}
+ /* Also fill the inline uniforms blocks if needed. */
+ if (layout->inline_blocks_descriptor_index >= 0) {
+ set->descriptors[layout->inline_blocks_descriptor_index] = (struct anv_descriptor) {
+ .type = VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT,
+ .inline_address = (struct anv_address) {
+ .bo = pool->inline_blocks_bo,
+ .offset = set->inline_blocks - pool->inline_blocks_bo->map,
+ },
+ .inline_range = layout->inline_blocks_size,
+ };
+ }
+
/* Allocate surface state for the buffer views. */
for (uint32_t b = 0; b < layout->buffer_count; b++) {
struct surface_state_free_list_entry *entry =
@@ -600,8 +762,6 @@ anv_descriptor_set_destroy(struct anv_device *device,
struct anv_descriptor_pool *pool,
struct anv_descriptor_set *set)
{
- anv_descriptor_set_layout_unref(device, set->layout);
-
/* Put the buffer view surface state back on the free list. */
for (uint32_t b = 0; b < set->buffer_count; b++) {
struct surface_state_free_list_entry *entry =
@@ -611,7 +771,22 @@ anv_descriptor_set_destroy(struct anv_device *device,
pool->surface_state_free_list = entry;
}
- /* Put the descriptor set allocation back on the free list. */
+ /* Put the inline uniform blocks back on the free list. */
+ if (set->inline_blocks) {
+ const uint32_t index = set->inline_blocks - pool->inline_blocks_bo->map;
+ if (index + set->layout->inline_blocks_size == pool->next_block) {
+ pool->next_block = index;
+ } else {
+ struct pool_free_list_entry *entry = (struct pool_free_list_entry *) set->inline_blocks;
+ entry->next = pool->free_block_list;
+ entry->size = set->layout->inline_blocks_size;
+ pool->free_block_list = (char *) entry - pool->data;
+ }
+ }
+
+ anv_descriptor_set_layout_unref(device, set->layout);
+
+ /* Finally, put the descriptor set allocation back on the free list. */
const uint32_t index = (char *) set - pool->data;
if (index + set->size == pool->next_set) {
pool->next_set = index;
@@ -798,6 +973,23 @@ anv_descriptor_set_write_buffer(struct anv_descriptor_set *set,
}
}
+static void
+anv_descriptor_set_write_inline_uniforms(struct anv_descriptor_set *set,
+ VkDescriptorType type,
+ uint32_t binding,
+ uint32_t dst_offset,
+ const void *data,
+ uint32_t data_length)
+{
+ const struct anv_descriptor_set_binding_layout *bind_layout =
+ &set->layout->binding[binding];
+
+ assert(type == bind_layout->type);
+
+ memcpy(set->inline_blocks + bind_layout->inline_block_offset + dst_offset,
+ data, data_length);
+}
+
void anv_UpdateDescriptorSets(
VkDevice _device,
uint32_t descriptorWriteCount,
@@ -826,6 +1018,20 @@ void anv_UpdateDescriptorSets(
}
break;
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT: {
+ const VkWriteDescriptorSetInlineUniformBlockEXT *inline_ub =
+ vk_find_struct_const(write->pNext,
+ WRITE_DESCRIPTOR_SET_INLINE_UNIFORM_BLOCK_EXT);
+ assert(inline_ub);
+ anv_descriptor_set_write_inline_uniforms(set,
+ write->descriptorType,
+ write->dstBinding,
+ write->dstArrayElement,
+ inline_ub->pData,
+ inline_ub->dataSize);
+ break;
+ }
+
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
for (uint32_t j = 0; j < write->descriptorCount; j++) {
@@ -954,6 +1160,16 @@ anv_descriptor_set_write_template(struct anv_descriptor_set *set,
}
break;
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT: {
+ anv_descriptor_set_write_inline_uniforms(set,
+ entry->type,
+ entry->binding,
+ entry->array_element,
+ data + entry->offset,
+ entry->array_count);
+ break;
+ }
+
default:
break;
}
diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 1e37876eb43..5bc9f7e7e88 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -942,6 +942,15 @@ void anv_GetPhysicalDeviceFeatures2(
break;
}
+ case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INLINE_UNIFORM_BLOCK_FEATURES_EXT: {
+ VkPhysicalDeviceInlineUniformBlockFeaturesEXT *features =
+ (VkPhysicalDeviceInlineUniformBlockFeaturesEXT *)ext;
+
+ features->inlineUniformBlock = true;
+ features->descriptorBindingInlineUniformBlockUpdateAfterBind = false;
+ break;
+ }
+
default:
anv_debug_ignored_stype(ext->sType);
break;
@@ -1198,6 +1207,19 @@ void anv_GetPhysicalDeviceProperties2(
break;
}
+ case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INLINE_UNIFORM_BLOCK_PROPERTIES_EXT: {
+ VkPhysicalDeviceInlineUniformBlockPropertiesEXT *props =
+ (VkPhysicalDeviceInlineUniformBlockPropertiesEXT *)ext;
+
+ /* All required minimum values. */
+ props->maxInlineUniformBlockSize = MAX_INLINE_UNIFORM_BLOCK_SIZE;
+ props->maxPerStageDescriptorInlineUniformBlocks = MAX_INLINE_UNIFORM_BLOCK_DESCRIPTORS;
+ props->maxPerStageDescriptorUpdateAfterBindInlineUniformBlocks = 4;
+ props->maxDescriptorSetInlineUniformBlocks = 4;
+ props->maxDescriptorSetUpdateAfterBindInlineUniformBlocks = 4;
+ break;
+ }
+
default:
anv_debug_ignored_stype(ext->sType);
break;
diff --git a/src/intel/vulkan/anv_extensions.py b/src/intel/vulkan/anv_extensions.py
index 951505a854e..61803c9d7fa 100644
--- a/src/intel/vulkan/anv_extensions.py
+++ b/src/intel/vulkan/anv_extensions.py
@@ -125,6 +125,7 @@ EXTENSIONS = [
Extension('VK_EXT_vertex_attribute_divisor', 3, True),
Extension('VK_EXT_post_depth_coverage', 1, 'device->info.gen >= 9'),
Extension('VK_EXT_sampler_filter_minmax', 1, 'device->info.gen >= 9'),
+ Extension('VK_EXT_inline_uniform_block', 1, True),
]
class VkVersion:
diff --git a/src/intel/vulkan/anv_nir_apply_pipeline_layout.c b/src/intel/vulkan/anv_nir_apply_pipeline_layout.c
index 856101cc2ff..75bf33806f9 100644
--- a/src/intel/vulkan/anv_nir_apply_pipeline_layout.c
+++ b/src/intel/vulkan/anv_nir_apply_pipeline_layout.c
@@ -160,6 +160,22 @@ lower_res_index_intrinsic(nir_intrinsic_instr *intrin,
block_index = nir_iadd(b, nir_imm_int(b, surface_index), block_index);
}
+ /* We use a single binding table entry for all inline uniform blocks. That
+ * means each block is at a different offset in that entry. We can get this
+ * offset from the layout using (set, binding) but we need to add that
+ * offset into the actual load_ubo intrinsic.
+ *
+ * Here instead of just setting the block index we set a tuple
+ * (block_index, inline_block_offset) which will be replace when run into a
+ * load_ubo intrinsic (see lower_inline_uniform_block function).
+ */
+ uint32_t inline_block_offset =
+ state->layout->set[set].layout->binding[binding].inline_block_offset;
+ if (inline_block_offset != -1) {
+ block_index = nir_vec2(b, block_index,
+ nir_imm_int(b, inline_block_offset));
+ }
+
assert(intrin->dest.is_ssa);
nir_ssa_def_rewrite_uses(&intrin->dest.ssa, nir_src_for_ssa(block_index));
nir_instr_remove(&intrin->instr);
@@ -268,6 +284,39 @@ lower_load_constant(nir_intrinsic_instr *intrin,
nir_instr_remove(&intrin->instr);
}
+static void
+lower_inline_uniform_block(nir_intrinsic_instr *intrin,
+ struct apply_pipeline_layout_state *state)
+{
+ if (!intrin->src[0].ssa->parent_instr ||
+ intrin->src[0].ssa->parent_instr->type != nir_instr_type_alu)
+ return;
+
+ nir_alu_instr *alu = nir_instr_as_alu(intrin->src[0].ssa->parent_instr);
+ if (alu->op != nir_op_vec2)
+ return;
+
+ nir_builder *b = &state->builder;
+ b->cursor = nir_before_instr(&intrin->instr);
+
+ nir_instr_rewrite_src(&intrin->instr, &intrin->src[0], alu->src[0].src);
+
+ nir_const_value *const_inline_block_offset =
+ nir_src_as_const_value(alu->src[1].src);
+ assert(const_inline_block_offset);
+
+ nir_const_value *const_offset = nir_src_as_const_value(intrin->src[1]);
+ nir_ssa_def *offset;
+ if (const_offset) {
+ offset = nir_iadd(b, nir_imm_int(b, const_offset->u32[0]),
+ nir_imm_int(b, const_inline_block_offset->u32[0]));
+ } else {
+ offset = nir_iadd(b, nir_ssa_for_src(b, intrin->src[1], 1),
+ nir_imm_int(b, const_inline_block_offset->u32[0]));
+ }
+ nir_instr_rewrite_src(&intrin->instr, &intrin->src[1], nir_src_for_ssa(offset));
+}
+
static void
lower_tex_deref(nir_tex_instr *tex, nir_tex_src_type deref_src_type,
unsigned *base_index,
@@ -401,6 +450,9 @@ apply_pipeline_layout_block(nir_block *block,
case nir_intrinsic_load_constant:
lower_load_constant(intrin, state);
break;
+ case nir_intrinsic_load_ubo:
+ lower_inline_uniform_block(intrin, state);
+ break;
default:
break;
}
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index 372b7c69635..cea8e5786f5 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -159,6 +159,8 @@ struct gen_l3_config;
#define MAX_DYNAMIC_BUFFERS 16
#define MAX_IMAGES 8
#define MAX_PUSH_DESCRIPTORS 32 /* Minimum requirement */
+#define MAX_INLINE_UNIFORM_BLOCK_SIZE 256 /* Minimum requirement */
+#define MAX_INLINE_UNIFORM_BLOCK_DESCRIPTORS 4 /* Minimum requirement */
/* The kernel relocation API has a limitation of a 32-bit delta value
* applied to the address before it is written which, in spite of it being
@@ -1394,6 +1396,16 @@ struct anv_descriptor_set_binding_layout {
/* Index into the descriptor set buffer views */
int16_t buffer_index;
+ /* TODO/question: should we union fields a bit? inline uniform blocks have
+ * no use for array_size, buffer_index & dynamic_offset_index.
+ */
+
+ /* Offset into the portion of data allocated for the inline uniforms. */
+ uint32_t inline_block_offset;
+
+ /* Length of the portion of data allocated for inline uniforms */
+ uint32_t inline_block_length;
+
struct {
/* Index into the binding table for the associated surface */
int16_t surface_index;
@@ -1428,6 +1440,15 @@ struct anv_descriptor_set_layout {
/* Number of dynamic offsets used by this descriptor set */
uint16_t dynamic_offset_count;
+ /* Index into the flattend descriptor set (-1 if unused). */
+ int16_t inline_blocks_descriptor_index;
+
+ /* Data to allocate into the pool descriptor's inline uniforms BO */
+ uint32_t inline_blocks_size;
+
+ /* Index into the binding table for the associated surface */
+ int16_t inline_blocks_surface_indexes[MESA_SHADER_STAGES];
+
/* Bindings in this descriptor set */
struct anv_descriptor_set_binding_layout binding[0];
};
@@ -1464,6 +1485,11 @@ struct anv_descriptor {
uint64_t range;
};
+ struct {
+ struct anv_address inline_address;
+ uint64_t inline_range;
+ };
+
struct anv_buffer_view *buffer_view;
};
};
@@ -1472,6 +1498,7 @@ struct anv_descriptor_set {
struct anv_descriptor_set_layout *layout;
uint32_t size;
uint32_t buffer_count;
+ void *inline_blocks;
struct anv_buffer_view *buffer_views;
struct anv_descriptor descriptors[0];
};
@@ -1507,6 +1534,12 @@ struct anv_descriptor_pool {
struct anv_state_stream surface_state_stream;
void *surface_state_free_list;
+ struct anv_bo *inline_blocks_bo;
+ uint32_t inline_blocks_size;
+
+ uint32_t free_block_list;
+ uint32_t next_block;
+
char data[0];
};
diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index 80bebf5a12c..5cb4c0f13af 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -2146,6 +2146,19 @@ emit_binding_table(struct anv_cmd_buffer *cmd_buffer,
desc->buffer_view->address);
break;
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT: {
+ surface_state =
+ anv_state_stream_alloc(&cmd_buffer->surface_state_stream, 64, 64);
+ enum isl_format format =
+ anv_isl_format_for_descriptor_type(desc->type);
+
+ anv_fill_buffer_surface_state(cmd_buffer->device, surface_state,
+ format, desc->inline_address,
+ desc->inline_range, 1);
+ add_surface_reloc(cmd_buffer, surface_state, desc->inline_address);
+ break;
+ }
+
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC: {
/* Compute the offset within the buffer */
@@ -2445,14 +2458,15 @@ cmd_buffer_flush_push_constants(struct anv_cmd_buffer *cmd_buffer,
const struct anv_descriptor *desc =
anv_descriptor_for_binding(&gfx_state->base, binding);
- if (desc->type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER) {
+ switch (desc->type) {
+ case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
read_len = MIN2(range->length,
DIV_ROUND_UP(desc->buffer_view->range, 32) - range->start);
read_addr = anv_address_add(desc->buffer_view->address,
range->start * 32);
- } else {
- assert(desc->type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC);
+ break;
+ case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC: {
uint32_t dynamic_offset =
dynamic_offset_for_binding(&gfx_state->base, binding);
uint32_t buf_offset =
@@ -2464,6 +2478,18 @@ cmd_buffer_flush_push_constants(struct anv_cmd_buffer *cmd_buffer,
DIV_ROUND_UP(buf_range, 32) - range->start);
read_addr = anv_address_add(desc->buffer->address,
buf_offset + range->start * 32);
+ break;
+ }
+
+ case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
+ read_len = MIN2(range->length,
+ DIV_ROUND_UP(desc->inline_range, 32) - range->start);
+ read_addr = anv_address_add(desc->inline_address,
+ range->start * 32);
+ break;
+
+ default:
+ unreachable("Invalid descriptor");
}
}
--
2.19.0.rc1
More information about the mesa-dev
mailing list