[v1,39/57] xen/riscv: introduce asm/numa.h

Commit Message

Oleksii Kurochko Aug. 16, 2023, 10:19 a.m. UTC

Signed-off-by: Oleksii Kurochko <[e-mail]>
---
 xen/arch/riscv/include/asm/numa.h | 38 +++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 xen/arch/riscv/include/asm/numa.h

Patch

diff --git a/xen/arch/riscv/include/asm/numa.h b/xen/arch/riscv/include/asm/numa.h
new file mode 100644
index 0000000000..0cfeeed38a
--- /dev/null
+++ b/xen/arch/riscv/include/asm/numa.h
@@ -0,0 +1,38 @@ 
+#ifndef __ARCH_RISCV_NUMA_H
+#define __ARCH_RISCV_NUMA_H
+
+#include <xen/mm.h>
+
+typedef u8 nodeid_t;
+
+/* Fake one node for now. See also node_online_map. */
+#define cpu_to_node(cpu) 0
+#define node_to_cpumask(node)   (cpu_online_map)
+
+/*
+ * TODO: make first_valid_mfn static when NUMA is supported on RISCV, this
+ * is required because the dummy helpers are using it.
+ */
+extern mfn_t first_valid_mfn;
+
+/* XXX: implement NUMA support */
+#define node_spanned_pages(nid) (max_page - mfn_x(first_valid_mfn))
+#define node_start_pfn(nid) (mfn_x(first_valid_mfn))
+#define __node_distance(a, b) (20)
+
+static inline unsigned int arch_get_dma_bitsize(void)
+{
+    return 32;
+}
+
+#define arch_want_default_dmazone() (false)
+
+#endif /* __ARCH_RISCV_NUMA_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */