This commit is contained in:
Denis Dupeyron 2025-09-08 19:51:45 -06:00
parent 2dd76e9f7a
commit 81de509814

View file

@ -253,30 +253,38 @@ namespace Vulkan {
MemoryCommit MemoryAllocator::Commit(const VkMemoryRequirements &reqs, MemoryUsage usage)
{
// Adreno stands firm - ensure 4KB alignment for all Adreno GPUs
VkMemoryRequirements adjusted_reqs = reqs;
const bool is_adreno = (device.GetDriverID() == VK_DRIVER_ID_QUALCOMM_PROPRIETARY ||
device.GetDriverID() == VK_DRIVER_ID_MESA_TURNIP);
if (is_adreno) {
adjusted_reqs.size = Common::AlignUp(reqs.size, 4096);
}
const auto vma_usage = MemoryUsageVma(usage);
VmaAllocationCreateInfo ci{};
ci.flags = VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT | MemoryUsageVmaFlags(usage);
ci.usage = vma_usage;
ci.memoryTypeBits = reqs.memoryTypeBits & valid_memory_types;
ci.memoryTypeBits = adjusted_reqs.memoryTypeBits & valid_memory_types;
ci.requiredFlags = 0;
ci.preferredFlags = MemoryUsagePreferredVmaFlags(usage);
VmaAllocation a{};
VmaAllocationInfo info{};
VkResult res = vmaAllocateMemory(allocator, &reqs, &ci, &a, &info);
VkResult res = vmaAllocateMemory(allocator, &adjusted_reqs, &ci, &a, &info);
if (res != VK_SUCCESS) {
// Relax 1: drop budget constraint
auto ci2 = ci;
ci2.flags &= ~VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT;
res = vmaAllocateMemory(allocator, &reqs, &ci2, &a, &info);
res = vmaAllocateMemory(allocator, &adjusted_reqs, &ci2, &a, &info);
// Relax 2: if we preferred DEVICE_LOCAL, drop that preference
if (res != VK_SUCCESS && (ci.preferredFlags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT)) {
auto ci3 = ci2;
ci3.preferredFlags &= ~VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
res = vmaAllocateMemory(allocator, &reqs, &ci3, &a, &info);
res = vmaAllocateMemory(allocator, &adjusted_reqs, &ci3, &a, &info);
}
}