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[vk, qcom] Samplers Budget Management

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This commit is contained in:
CamilleLaVey 2025-11-25 19:55:55 -04:00 • committed by lizzie
parent bc51d68447
commit b98a150e4c
2 changed files with 5 additions and 5 deletions
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1
src/video_core/texture_cache/texture_cache.h
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@ -2039,6 +2039,7 @@ SamplerId TextureCache<P>::FindSampler(const TSCEntry& config) {
}
const auto [pair, is_new] = channel_state->samplers.try_emplace(config);
if (is_new) {
EnforceSamplerBudget();
pair->second = slot_samplers.insert(runtime, config);
EnforceSamplerBudget();
}

9
src/video_core/vulkan_common/vulkan_device.cpp
View file

@ -595,14 +595,13 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
const size_t sampler_limit = properties.properties.limits.maxSamplerAllocationCount;
if (sampler_limit > 0) {
constexpr size_t MIN_SAMPLER_BUDGET = 1024U;
const size_t reserved = sampler_limit / 4U;
const size_t derived_budget =
(std::max)(MIN_SAMPLER_BUDGET, sampler_limit - reserved);
(std::max)(MIN_SAMPLER_BUDGET, sampler_limit / 4U);
sampler_heap_budget = derived_budget;
LOG_WARNING(Render_Vulkan,
"Qualcomm driver reports max {} samplers; reserving {} (25%) and "
"allowing Eden to use {} (75%) to avoid heap exhaustion",
sampler_limit, reserved, sampler_heap_budget);
"Qualcomm driver reports max {} samplers; clamping cache to {} (25%) to "
"avoid heap exhaustion",
sampler_limit, sampler_heap_budget);
}
const u32 version = (properties.properties.driverVersion << 3) >> 3;
if (version < VK_MAKE_API_VERSION(0, 255, 615, 512) ||