v2.5

• Introduce gdr_pin_buffer_v2 API, GDR_PIN_FLAG_FORCE_PCIE pin flag and the GDR_ATTR_SUPPORT_PIN_FLAG_FORCE_PCIE attribute. Extend gdrcopy_sanity coverage to those new APIs.
• Waive some unit tests in gdrcopy_sanity if the GPU compute mode is not set as default.
• Introduce gdr_get_attribute API and GDR_ATTR_USE_PERSISTENT_MAPPING.
• Add persistent mapping coverage to gdrcopy_sanity.
• Support setting GPU ID in gdrcopy_sanity.
• Fix nvidia_p2p_get_pages_persistent leakage in gdrdrv.
• Introduce leakage_pin_pages_fork_cumemalloc unit test.
• Add support for mix mappings.
• Introduce /proc/driver/gdrdrv/params and /proc/driver/gdrdrv/nv_get_pages_refcount.
• Fix silent failure in gdrcopy_copybw and gdrcopy_apiperf.
• Add -l to shmoo sizes in gdrcopy_copybw.
• Set the default NVCC_FLAGS to generate PTX and SASS for all supported architectures.
• Improve the error reporting in gdrcopy_pplat due to PTX loading errors.
• Add cold cache testing to gdrcopy_copylat.
• Fix errors in gdr_map due to PAT.
• Improve the gdrcopy_pplat algorithm and add more test cases.
• Improve vm_flags_set detection mechanism.
• Change the default to set use_persistent_mapping=1.