Readme and comment updates to ROCm 1.4
Change-Id: I2864a9c475b9ceb2fa08bfc35999c7e0e043b26d
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@@ -43,11 +43,6 @@
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#ifndef HSA_RUNTIME_CORE_INC_AMD_GPU_PM4_H_
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#define HSA_RUNTIME_CORE_INC_AMD_GPU_PM4_H_
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// PM4 definitions:
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// http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2013/10/si_programming_guide_v2.pdf
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//
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// ACQUIRE_MEM was introduced in Gfx7.
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#define PM4_HDR_IT_OPCODE_NOP 0x10
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#define PM4_HDR_IT_OPCODE_INDIRECT_BUFFER 0x3F
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#define PM4_HDR_IT_OPCODE_RELEASE_MEM 0x49
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@@ -66,6 +66,7 @@ If the sample runs without generating errors, the installation is complete.
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#### Known Issues
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* The image extension is currently not supported for discrete GPUs. An image extension library is not provided in the binary package. The standard hsa_ext_image.h extension include file is provided for reference.
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* Each HSA process creates and internal DMA queue, but there is a system-wide limit of four DMA queues. The fifth simultaneous HSA process will fail hsa_init() with HSA_STATUS_ERROR_OUT_OF_RESOURCES. To run an unlimited number of simultaneous HSA processes, set the environment variable HSA_ENABLE_SDMA=0.
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#### Disclaimer
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