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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2024-05-28 23:21:34 +0300
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2024-05-28 23:21:34 +0300
commitf73a058be5d70dd81a43f16b2bbff4b1576a7af8 (patch)
treeb7959c01cf7a5d95c7c4d5b61929ff9123370322 /arch/s390/include/asm/extmem.h
parent6cb05d89fd62a76a9b74bd16211fb0930e89fea8 (diff)
parent3e049b6b8f32f25c6967f4cffd8eac6e1e5316f6 (diff)
downloadlinux-f73a058be5d70dd81a43f16b2bbff4b1576a7af8.tar.xz
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
v6.10-rc1 is released, forward from v6.9 Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'arch/s390/include/asm/extmem.h')
-rw-r--r--arch/s390/include/asm/extmem.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/include/asm/extmem.h b/arch/s390/include/asm/extmem.h
index 568fd81bb77b..e0a06060afdd 100644
--- a/arch/s390/include/asm/extmem.h
+++ b/arch/s390/include/asm/extmem.h
@@ -8,6 +8,13 @@
#define _ASM_S390X_DCSS_H
#ifndef __ASSEMBLY__
+/*
+ * DCSS segment is defined as a contiguous range of pages using DEFSEG command.
+ * The range start and end is a page number with a value less than or equal to
+ * 0x7ffffff (see CP Commands and Utilities Reference).
+ */
+#define MAX_DCSS_ADDR (512UL * SZ_1G)
+
/* possible values for segment type as returned by segment_info */
#define SEG_TYPE_SW 0
#define SEG_TYPE_EW 1