[Mesa-dev] [PATCH 2/9] radv: Change cache datastructures for combined pipelines.

Timothy Arceri tarceri at itsqueeze.com
Sat Oct 14 23:36:40 UTC 2017


From: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

Signed-off-by: Timothy Arceri <tarceri at itsqueeze.com>
---
 src/amd/vulkan/radv_pipeline_cache.c | 102 ++++++++++++++++++++++-------------
 1 file changed, 64 insertions(+), 38 deletions(-)

diff --git a/src/amd/vulkan/radv_pipeline_cache.c b/src/amd/vulkan/radv_pipeline_cache.c
index fc99b43fff..fc34e07822 100644
--- a/src/amd/vulkan/radv_pipeline_cache.c
+++ b/src/amd/vulkan/radv_pipeline_cache.c
@@ -24,31 +24,34 @@
 #include "util/mesa-sha1.h"
 #include "util/debug.h"
 #include "util/disk_cache.h"
 #include "util/u_atomic.h"
 #include "radv_debug.h"
 #include "radv_private.h"
 #include "radv_shader.h"
 
 #include "ac_nir_to_llvm.h"
 
+struct cache_entry_variant_info {
+	struct ac_shader_variant_info variant_info;
+	struct ac_shader_config config;
+	uint32_t rsrc1, rsrc2;
+};
+
 struct cache_entry {
 	union {
 		unsigned char sha1[20];
 		uint32_t sha1_dw[5];
 	};
-	uint32_t code_size;
-	struct ac_shader_variant_info variant_info;
-	struct ac_shader_config config;
-	uint32_t rsrc1, rsrc2;
-	struct radv_shader_variant *variant;
-	uint32_t code[0];
+	uint32_t code_sizes[MESA_SHADER_STAGES];
+	struct radv_shader_variant *variants[MESA_SHADER_STAGES];
+	char code[0];
 };
 
 void
 radv_pipeline_cache_init(struct radv_pipeline_cache *cache,
 			 struct radv_device *device)
 {
 	cache->device = device;
 	pthread_mutex_init(&cache->mutex, NULL);
 
 	cache->modified = false;
@@ -65,33 +68,39 @@ radv_pipeline_cache_init(struct radv_pipeline_cache *cache,
 		cache->table_size = 0;
 	else
 		memset(cache->hash_table, 0, byte_size);
 }
 
 void
 radv_pipeline_cache_finish(struct radv_pipeline_cache *cache)
 {
 	for (unsigned i = 0; i < cache->table_size; ++i)
 		if (cache->hash_table[i]) {
-			if (cache->hash_table[i]->variant)
-				radv_shader_variant_destroy(cache->device,
-							    cache->hash_table[i]->variant);
+			for(int j = 0; j < MESA_SHADER_STAGES; ++j)  {
+				if (cache->hash_table[i]->variants[j])
+					radv_shader_variant_destroy(cache->device,
+								    cache->hash_table[i]->variants[j]);
+			}
 			vk_free(&cache->alloc, cache->hash_table[i]);
 		}
 	pthread_mutex_destroy(&cache->mutex);
 	free(cache->hash_table);
 }
 
 static uint32_t
 entry_size(struct cache_entry *entry)
 {
-	return sizeof(*entry) + entry->code_size;
+	size_t ret = sizeof(*entry);
+	for (int i = 0; i < MESA_SHADER_STAGES; ++i)
+		if (entry->code_sizes[i])
+			ret += sizeof(struct cache_entry_variant_info) + entry->code_sizes[i];
+	return ret;
 }
 
 void
 radv_hash_shader(unsigned char *hash, struct radv_shader_module *module,
 		 const char *entrypoint,
 		 const VkSpecializationInfo *spec_info,
 		 const struct radv_pipeline_layout *layout,
 		 const struct ac_shader_variant_key *key,
 		 uint32_t flags)
 {
@@ -172,42 +181,47 @@ radv_create_shader_variant_from_pipeline_cache(struct radv_device *device,
 		uint8_t disk_sha1[20];
 		disk_cache_compute_key(device->physical_device->disk_cache,
 				       sha1, 20, disk_sha1);
 		entry = (struct cache_entry *)
 			disk_cache_get(device->physical_device->disk_cache,
 				       disk_sha1, NULL);
 		if (!entry)
 			return NULL;
 	}
 
-	if (!entry->variant) {
+	if (!entry->variants[0]) {
 		struct radv_shader_variant *variant;
+		char *p = entry->code;
+		struct cache_entry_variant_info info;
 
 		variant = calloc(1, sizeof(struct radv_shader_variant));
 		if (!variant)
 			return NULL;
 
-		variant->code_size = entry->code_size;
-		variant->config = entry->config;
-		variant->info = entry->variant_info;
-		variant->rsrc1 = entry->rsrc1;
-		variant->rsrc2 = entry->rsrc2;
+		memcpy(&info, p, sizeof(struct cache_entry_variant_info));
+		p += sizeof(struct cache_entry_variant_info);
+
+		variant->code_size = entry->code_sizes[0];
+		variant->config = info.config;
+		variant->info = info.variant_info;
+		variant->rsrc1 = info.rsrc1;
+		variant->rsrc2 = info.rsrc2;
 		variant->ref_count = 1;
 
 		void *ptr = radv_alloc_shader_memory(device, variant);
-		memcpy(ptr, entry->code, entry->code_size);
+		memcpy(ptr, p, entry->code_sizes[0]);
 
-		entry->variant = variant;
+		entry->variants[0] = variant;
 	}
 
-	p_atomic_inc(&entry->variant->ref_count);
-	return entry->variant;
+	p_atomic_inc(&entry->variants[0]->ref_count);
+	return entry->variants[0];
 }
 
 
 static void
 radv_pipeline_cache_set_entry(struct radv_pipeline_cache *cache,
 			      struct cache_entry *entry)
 {
 	const uint32_t mask = cache->table_size - 1;
 	const uint32_t start = entry->sha1_dw[0];
 
@@ -279,62 +293,71 @@ radv_pipeline_cache_insert_shader(struct radv_device *device,
 				  const unsigned char *sha1,
 				  struct radv_shader_variant *variant,
 				  const void *code, unsigned code_size)
 {
 	if (!cache)
 		cache = device->mem_cache;
 
 	pthread_mutex_lock(&cache->mutex);
 	struct cache_entry *entry = radv_pipeline_cache_search_unlocked(cache, sha1);
 	if (entry) {
-		if (entry->variant) {
+		if (entry->variants[0]) {
 			radv_shader_variant_destroy(cache->device, variant);
-			variant = entry->variant;
+			variant = entry->variants[0];
 		} else {
-			entry->variant = variant;
+			entry->variants[0] = variant;
 		}
 		p_atomic_inc(&variant->ref_count);
 		pthread_mutex_unlock(&cache->mutex);
 		return variant;
 	}
 
-	entry = vk_alloc(&cache->alloc, sizeof(*entry) + code_size, 8,
+	entry = vk_alloc(&cache->alloc, sizeof(*entry) + sizeof(struct cache_entry_variant_info) + code_size, 8,
 			   VK_SYSTEM_ALLOCATION_SCOPE_CACHE);
 	if (!entry) {
 		pthread_mutex_unlock(&cache->mutex);
 		return variant;
 	}
 
+	memset(entry, 0, sizeof(*entry));
+
+	char* p = entry->code;
+	struct cache_entry_variant_info info;
+
+	info.config = variant->config;
+	info.variant_info = variant->info;
+	info.rsrc1 = variant->rsrc1;
+	info.rsrc2 = variant->rsrc2;
+	memcpy(p, &info, sizeof(struct cache_entry_variant_info));
+	p += sizeof(struct cache_entry_variant_info);
+
 	memcpy(entry->sha1, sha1, 20);
-	memcpy(entry->code, code, code_size);
-	entry->config = variant->config;
-	entry->variant_info = variant->info;
-	entry->rsrc1 = variant->rsrc1;
-	entry->rsrc2 = variant->rsrc2;
-	entry->code_size = code_size;
+	memcpy(p, code, code_size);
+
+	entry->code_sizes[0] = code_size;
 
 	/* Set variant to NULL so we have reproducible cache items */
-	entry->variant = NULL;
+	entry->variants[0] = NULL;
 
 	/* Always add cache items to disk. This will allow collection of
 	 * compiled shaders by third parties such as steam, even if the app
 	 * implements its own pipeline cache.
 	 */
 	if (device->physical_device->disk_cache) {
 		uint8_t disk_sha1[20];
 		disk_cache_compute_key(device->physical_device->disk_cache, sha1, 20,
 				       disk_sha1);
 		disk_cache_put(device->physical_device->disk_cache,
 			       disk_sha1, entry, entry_size(entry), NULL);
 	}
 
-	entry->variant = variant;
+	entry->variants[0] = variant;
 	p_atomic_inc(&variant->ref_count);
 
 	radv_pipeline_cache_add_entry(cache, entry);
 
 	cache->modified = true;
 	pthread_mutex_unlock(&cache->mutex);
 	return variant;
 }
 
 struct cache_header {
@@ -365,31 +388,33 @@ radv_pipeline_cache_load(struct radv_pipeline_cache *cache,
 		return;
 	if (memcmp(header.uuid, device->physical_device->cache_uuid, VK_UUID_SIZE) != 0)
 		return;
 
 	char *end = (void *) data + size;
 	char *p = (void *) data + header.header_size;
 
 	while (end - p >= sizeof(struct cache_entry)) {
 		struct cache_entry *entry = (struct cache_entry*)p;
 		struct cache_entry *dest_entry;
-		if(end - p < sizeof(*entry) + entry->code_size)
+		size_t size = entry_size(entry);
+		if(end - p < size)
 			break;
 
-		dest_entry = vk_alloc(&cache->alloc, sizeof(*entry) + entry->code_size,
+		dest_entry = vk_alloc(&cache->alloc, size,
 					8, VK_SYSTEM_ALLOCATION_SCOPE_CACHE);
 		if (dest_entry) {
-			memcpy(dest_entry, entry, sizeof(*entry) + entry->code_size);
-			dest_entry->variant = NULL;
+			memcpy(dest_entry, entry, size);
+			for (int i = 0; i < MESA_SHADER_STAGES; ++i)
+				dest_entry->variants[i] = NULL;
 			radv_pipeline_cache_add_entry(cache, dest_entry);
 		}
-		p += sizeof (*entry) + entry->code_size;
+		p += size;
 	}
 }
 
 VkResult radv_CreatePipelineCache(
 	VkDevice                                    _device,
 	const VkPipelineCacheCreateInfo*            pCreateInfo,
 	const VkAllocationCallbacks*                pAllocator,
 	VkPipelineCache*                            pPipelineCache)
 {
 	RADV_FROM_HANDLE(radv_device, device, _device);
@@ -470,21 +495,22 @@ VkResult radv_GetPipelineCacheData(
 		if (!cache->hash_table[i])
 			continue;
 		entry = cache->hash_table[i];
 		const uint32_t size = entry_size(entry);
 		if (end < p + size) {
 			result = VK_INCOMPLETE;
 			break;
 		}
 
 		memcpy(p, entry, size);
-		((struct cache_entry*)p)->variant = NULL;
+		for(int j = 0; j < MESA_SHADER_STAGES; ++j)
+			((struct cache_entry*)p)->variants[j] = NULL;
 		p += size;
 	}
 	*pDataSize = p - pData;
 
 	return result;
 }
 
 static void
 radv_pipeline_cache_merge(struct radv_pipeline_cache *dst,
 			  struct radv_pipeline_cache *src)
-- 
2.13.6



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