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-rw-r--r--linux-core/drm_compat.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/linux-core/drm_compat.h b/linux-core/drm_compat.h
index f5f06017..03838a18 100644
--- a/linux-core/drm_compat.h
+++ b/linux-core/drm_compat.h
@@ -343,4 +343,14 @@ extern struct pci_dev * pci_get_bus_and_slot(unsigned int bus, unsigned int devf
#define PM_EVENT_PRETHAW 3
#endif
+#if (defined(CONFIG_X86) && defined(CONFIG_X86_32) && defined(CONFIG_HIMEM))
+#define DRM_KMAP_ATOMIC_PROT_PFN
+extern void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type,
+ pgprot_t protection);
+#endif
+
+#if !defined(flush_agp_mappings)
+#define flush_agp_mappings() do {} while(0)
+#endif
+
#endif