515.43.04

kernel-open/nvidia-uvm/uvm_maxwell.c

@@ -0,0 +1,72 @@
+/*******************************************************************************
+    Copyright (c) 2016-2021 NVIDIA Corporation
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to
+    deal in the Software without restriction, including without limitation the
+    rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+    sell copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+        The above copyright notice and this permission notice shall be
+        included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+
+*******************************************************************************/
+
+#include "uvm_hal.h"
+#include "uvm_gpu.h"
+#include "uvm_mem.h"
+
+void uvm_hal_maxwell_arch_init_properties(uvm_parent_gpu_t *parent_gpu)
+{
+    parent_gpu->tlb_batch.va_invalidate_supported = false;
+
+    // 128 GB should be enough for all current RM allocations and leaves enough
+    // space for UVM internal mappings.
+    // A single top level PDE covers 64 or 128 MB on Maxwell so 128 GB is fine to use.
+    parent_gpu->rm_va_base = 0;
+    parent_gpu->rm_va_size = 128ull * 1024 * 1024 * 1024;
+
+    parent_gpu->uvm_mem_va_base = 768ull * 1024 * 1024 * 1024;
+    parent_gpu->uvm_mem_va_size = UVM_MEM_VA_SIZE;
+
+    // We don't have a compelling use case in UVM-Lite for direct peer
+    // migrations between GPUs, so don't bother setting them up.
+    parent_gpu->peer_copy_mode = UVM_GPU_PEER_COPY_MODE_UNSUPPORTED;
+
+    parent_gpu->max_channel_va = 1ULL << 40;
+
+    parent_gpu->max_host_va = 1ULL << 40;
+
+    // Maxwell can only map sysmem with 4K pages
+    parent_gpu->can_map_sysmem_with_large_pages = false;
+
+    // Maxwell cannot place GPFIFO in vidmem
+    parent_gpu->gpfifo_in_vidmem_supported = false;
+
+    parent_gpu->replayable_faults_supported = false;
+
+    parent_gpu->non_replayable_faults_supported = false;
+
+    parent_gpu->access_counters_supported = false;
+
+    parent_gpu->fault_cancel_va_supported = false;
+
+    parent_gpu->scoped_atomics_supported = false;
+
+    parent_gpu->sparse_mappings_supported = false;
+
+    parent_gpu->map_remap_larger_page_promotion = false;
+
+    parent_gpu->smc.supported = false;
+
+    parent_gpu->plc_supported = false;
+}