Properly and with comments this time.
Signed-off-by: Bas Nieuwenhuizen <[email protected]>
---
src/amd/vulkan/radv_device.c | 44 +++++++++++++++++++++++++++++---------------
1 file changed, 29 insertions(+), 15 deletions(-)
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index f14b0fd4f4e..936ae6f8ef1 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -542,6 +542,20 @@ void radv_GetPhysicalDeviceProperties(
{
RADV_FROM_HANDLE(radv_physical_device, pdevice, physicalDevice);
VkSampleCountFlags sample_counts = 0xf;
+
+ /* make sure that the entire descriptor set is addressable with a signed
+ * 32-bit int. So the sum of all limits scaled by descriptor size has to
+ * be at most 2 GiB. the combined image & samples object count as one of
+ * both. This limit is for the pipeline layout, not for the set layout,
but
+ * there is no set limit, so we just set a pipeline limit. I don't think
+ * any app is going to hit this soon. */
+ size_t max_descriptor_set_size = ((1ull << 31) - 16 *
MAX_DYNAMIC_BUFFERS) /
+ (32 /* uniform buffer, 32 due to potential space wasted on
alignement */ +
+ 32 /* storage buffer, 32 due to potential space wasted on
alignement */ +
+ 32 /* sampler, largest when combined with image */ +
+ 64 /* sampled image */ +
+ 64 /* storage image */);
+
VkPhysicalDeviceLimits limits = {
.maxImageDimension1D = (1 << 14),
.maxImageDimension2D = (1 << 14),
@@ -557,21 +571,21 @@ void radv_GetPhysicalDeviceProperties(
.bufferImageGranularity = 64, /* A cache line
*/
.sparseAddressSpaceSize = 0xffffffffu, /*
buffer max size */
.maxBoundDescriptorSets = MAX_SETS,
- .maxPerStageDescriptorSamplers = (1u << 31) / 16,
- .maxPerStageDescriptorUniformBuffers = (1u << 31) / 16,
- .maxPerStageDescriptorStorageBuffers = (1u << 31) / 16,
- .maxPerStageDescriptorSampledImages = (1u << 31) / 96,
- .maxPerStageDescriptorStorageImages = (1u << 31) / 64,
- .maxPerStageDescriptorInputAttachments = (1u << 31) / 64,
- .maxPerStageResources = (1u << 31) / 32,
- .maxDescriptorSetSamplers = 256,
- .maxDescriptorSetUniformBuffers = (1u << 31) / 16,
- .maxDescriptorSetUniformBuffersDynamic = 8,
- .maxDescriptorSetStorageBuffers = (1u << 31) / 16,
- .maxDescriptorSetStorageBuffersDynamic = 8,
- .maxDescriptorSetSampledImages = (1u << 31) / 96,
- .maxDescriptorSetStorageImages = (1u << 31) / 64,
- .maxDescriptorSetInputAttachments = (1u << 31) / 64,
+ .maxPerStageDescriptorSamplers =
max_descriptor_set_size,
+ .maxPerStageDescriptorUniformBuffers =
max_descriptor_set_size,
+ .maxPerStageDescriptorStorageBuffers =
max_descriptor_set_size,
+ .maxPerStageDescriptorSampledImages =
max_descriptor_set_size,
+ .maxPerStageDescriptorStorageImages =
max_descriptor_set_size,
+ .maxPerStageDescriptorInputAttachments =
max_descriptor_set_size,
+ .maxPerStageResources =
max_descriptor_set_size,
+ .maxDescriptorSetSamplers =
max_descriptor_set_size,
+ .maxDescriptorSetUniformBuffers =
max_descriptor_set_size,
+ .maxDescriptorSetUniformBuffersDynamic = MAX_DYNAMIC_BUFFERS
/ 2,
+ .maxDescriptorSetStorageBuffers =
max_descriptor_set_size,
+ .maxDescriptorSetStorageBuffersDynamic = MAX_DYNAMIC_BUFFERS
/ 2,
+ .maxDescriptorSetSampledImages =
max_descriptor_set_size,
+ .maxDescriptorSetStorageImages =
max_descriptor_set_size,
+ .maxDescriptorSetInputAttachments =
max_descriptor_set_size,
.maxVertexInputAttributes = 32,
.maxVertexInputBindings = 32,
.maxVertexInputAttributeOffset = 2047,
--
2.12.2
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