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Update RayTracing helper values

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Signed-off-by: Bartosz Dunajski <bartosz.dunajski@intel.com>
This commit is contained in:
Bartosz Dunajski
2021-11-16 09:23:05 +00:00
committed by Compute-Runtime-Automation
parent 82f75990ba
commit 5be5cc33ce
3 changed files with 89 additions and 8 deletions
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7
shared/source/helpers/ray_tracing_helper.cpp
View File

@@ -8,12 +8,9 @@
#include "shared/source/helpers/ray_tracing_helper.h"
namespace NEO {
const uint32_t RayTracingHelper::memoryBackedFifoSizePerDss = 0;
size_t RayTracingHelper::getTotalMemoryBackedFifoSize(const Device &device) {
return 0;
}
size_t RayTracingHelper::getMemoryBackedFifoSizeToPatch() {
size_t RayTracingHelper::getRtGlobalsSize() {
return 0;
}
} // namespace NEO

40
shared/source/helpers/ray_tracing_helper.h
View File

@@ -16,9 +16,43 @@
namespace NEO {
class RayTracingHelper : public NonCopyableOrMovableClass {
public:
static const uint32_t memoryBackedFifoSizePerDss;
static constexpr uint32_t stackDssMultiplier = 2048;
static constexpr uint32_t hitInfoSize = 64;
static constexpr uint32_t bvhStackSize = 96;
static constexpr uint32_t memoryBackedFifoSizePerDss = 8 * KB;
static size_t getTotalMemoryBackedFifoSize(const Device &device);
static size_t getMemoryBackedFifoSizeToPatch();
static size_t getDispatchGlobalSize(const Device &device, uint32_t maxBvhLevel, uint32_t extraBytesLocal, uint32_t extraBytesGlobal) {
return static_cast<size_t>(alignUp(getRtGlobalsSize(), MemoryConstants::cacheLineSize) +
getStackSizePerRay(maxBvhLevel, extraBytesLocal) * getNumRtStacks(device) +
extraBytesGlobal);
}
static size_t getTotalMemoryBackedFifoSize(const Device &device) {
return static_cast<size_t>(getNumDss(device)) * memoryBackedFifoSizePerDss;
}
static size_t getMemoryBackedFifoSizeToPatch() {
return static_cast<size_t>(Math::log2(memoryBackedFifoSizePerDss / KB) - 1);
}
static size_t getRtGlobalsSize();
static uint32_t getNumRtStacks(const Device &device) {
return device.getHardwareInfo().gtSystemInfo.DualSubSliceCount * stackDssMultiplier;
}
static uint32_t getNumRtStacksPerDss(const Device &device) {
return stackDssMultiplier;
}
static uint32_t getNumDss(const Device &device) {
return device.getHardwareInfo().gtSystemInfo.DualSubSliceCount;
}
static uint32_t getStackSizePerRay(uint32_t maxBvhLevel, uint32_t extraBytesLocal) {
return alignUp((hitInfoSize + bvhStackSize * maxBvhLevel +
extraBytesLocal),
MemoryConstants::cacheLineSize);
}
};
} // namespace NEO