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-rw-r--r--src/intel/vulkan/anv_descriptor_set.c6
-rw-r--r--src/intel/vulkan/anv_device.c2
-rw-r--r--src/intel/vulkan/anv_private.h12
3 files changed, 16 insertions, 4 deletions
diff --git a/src/intel/vulkan/anv_descriptor_set.c b/src/intel/vulkan/anv_descriptor_set.c
index fa1d042f792..004d3f2f77f 100644
--- a/src/intel/vulkan/anv_descriptor_set.c
+++ b/src/intel/vulkan/anv_descriptor_set.c
@@ -163,10 +163,10 @@ void anv_GetDescriptorSetLayoutSupport(
bool supported = true;
for (unsigned s = 0; s < MESA_SHADER_STAGES; s++) {
- /* Our maximum binding table size is 250 and we need to reserve 8 for
- * render targets. 240 is a nice round number.
+ /* Our maximum binding table size is 240 and we need to reserve 8 for
+ * render targets.
*/
- if (surface_count[s] >= 240)
+ if (surface_count[s] >= MAX_BINDING_TABLE_SIZE - MAX_RTS)
supported = false;
}
diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index bc51c2c1aab..71de8865986 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -1121,7 +1121,7 @@ void anv_GetPhysicalDeviceProperties(
.maxPerStageDescriptorSampledImages = max_samplers,
.maxPerStageDescriptorStorageImages = MAX_IMAGES,
.maxPerStageDescriptorInputAttachments = 64,
- .maxPerStageResources = 250,
+ .maxPerStageResources = MAX_BINDING_TABLE_SIZE - MAX_RTS,
.maxDescriptorSetSamplers = 6 * max_samplers, /* number of stages * maxPerStageDescriptorSamplers */
.maxDescriptorSetUniformBuffers = 6 * 64, /* number of stages * maxPerStageDescriptorUniformBuffers */
.maxDescriptorSetUniformBuffersDynamic = MAX_DYNAMIC_BUFFERS / 2,
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index 28854411b11..5ae71b4e8c4 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -162,6 +162,18 @@ struct gen_l3_config;
#define MAX_INLINE_UNIFORM_BLOCK_SIZE 4096
#define MAX_INLINE_UNIFORM_BLOCK_DESCRIPTORS 32
+/* From the Skylake PRM Vol. 7 "Binding Table Surface State Model":
+ *
+ * "The surface state model is used when a Binding Table Index (specified
+ * in the message descriptor) of less than 240 is specified. In this model,
+ * the Binding Table Index is used to index into the binding table, and the
+ * binding table entry contains a pointer to the SURFACE_STATE."
+ *
+ * Binding table values above 240 are used for various things in the hardware
+ * such as stateless, stateless with incoherent cache, SLM, and bindless.
+ */
+#define MAX_BINDING_TABLE_SIZE 240
+
/* The kernel relocation API has a limitation of a 32-bit delta value
* applied to the address before it is written which, in spite of it being
* unsigned, is treated as signed . Because of the way that this maps to