Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/arch/parisc/include/asm/fixmap.h b/arch/parisc/include/asm/fixmap.h
new file mode 100644
index 000000000..f7c3a0905
--- /dev/null
+++ b/arch/parisc/include/asm/fixmap.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_FIXMAP_H
+#define _ASM_FIXMAP_H
+
+/*
+ * This file defines the locations of the fixed mappings on parisc.
+ *
+ * All of the values in this file are machine virtual addresses.
+ *
+ * All of the values in this file must be <4GB (because of assembly
+ * loading restrictions).  If you place this region anywhere above
+ * __PAGE_OFFSET, you must adjust the memory map accordingly */
+
+/* The alias region is used in kernel space to do copy/clear to or
+ * from areas congruently mapped with user space.  It is 8MB large
+ * and must be 16MB aligned */
+#define TMPALIAS_MAP_START	((__PAGE_OFFSET) - 16*1024*1024)
+/* This is the kernel area for all maps (vmalloc, dma etc.)  most
+ * usually, it extends up to TMPALIAS_MAP_START.  Virtual addresses
+ * 0..GATEWAY_PAGE_SIZE are reserved for the gateway page */
+#define KERNEL_MAP_START	(GATEWAY_PAGE_SIZE)
+#define KERNEL_MAP_END		(TMPALIAS_MAP_START)
+
+#ifndef __ASSEMBLY__
+extern void *parisc_vmalloc_start;
+#define PCXL_DMA_MAP_SIZE	(8*1024*1024)
+#define VMALLOC_START		((unsigned long)parisc_vmalloc_start)
+#define VMALLOC_END		(KERNEL_MAP_END)
+#endif /*__ASSEMBLY__*/
+
+#endif /*_ASM_FIXMAP_H*/