Thread (12 messages) 12 messages, 4 authors, 2024-02-19

Re: [PATCH v18 3/3] vfio/nvgrace-gpu: Add vfio pci variant module for grace hopper

From: Ankit Agrawal <ankita@nvidia.com>
Date: 2024-02-19 09:36:29
Also in: kvm, lkml

quoted
diff --git a/drivers/vfio/pci/nvgrace-gpu/main.c
b/drivers/vfio/pci/nvgrace-gpu/main.c new file mode 100644
index 000000000000..5a251a6a782e
--- /dev/null
+++ b/drivers/vfio/pci/nvgrace-gpu/main.c
@@ -0,0 +1,888 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights
reserved
+ */
+
+#include <linux/vfio_pci_core.h>
+#include <linux/sizes.h>
+
Let's keep the header inclusion in an alphabet order.

With that addressed,

Reviewed-by: Zhi Wang <zhi.wang.linux@gmail.com>
Yes, will adjust that. Thanks!
quoted
+/*
+ * The device memory usable to the workloads running in the VM is
cached
+ * and showcased as a 64b device BAR (comprising of BAR4 and BAR5
region)
+ * to the VM and is represented as usemem.
+ * Moreover, the VM GPU device driver needs a non-cacheable region to
+ * support the MIG feature. This region is also exposed as a 64b BAR
+ * (comprising of BAR2 and BAR3 region) and represented as resmem.
+ */
+#define RESMEM_REGION_INDEX VFIO_PCI_BAR2_REGION_INDEX
+#define USEMEM_REGION_INDEX VFIO_PCI_BAR4_REGION_INDEX
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