From 6f64917e8f1d28b718e8bfca886e24f264f2498b Mon Sep 17 00:00:00 2001
From: Alexander Boettcher <alexander.boettcher@genode-labs.com>
Date: Tue, 15 Mar 2022 08:29:59 +0100
Subject: [PATCH] lx_emul: add ioremap_cache/_wc to shadow/asm/io.h

used by intel_fb for write combined allocation

Issue #4450
---
 .../src/include/spec/x86/lx_emul/shadow/asm/io.h          | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/repos/dde_linux/src/include/spec/x86/lx_emul/shadow/asm/io.h b/repos/dde_linux/src/include/spec/x86/lx_emul/shadow/asm/io.h
index 67eda8eb04..d4eab15d79 100644
--- a/repos/dde_linux/src/include/spec/x86/lx_emul/shadow/asm/io.h
+++ b/repos/dde_linux/src/include/spec/x86/lx_emul/shadow/asm/io.h
@@ -7,9 +7,13 @@
 #ifndef _ASM_X86_IO_H
 #define _ASM_X86_IO_H
 
+#define ARCH_HAS_IOREMAP_WC
+#define ARCH_HAS_IOREMAP_WT
+
 #include <linux/string.h>
 #include <linux/compiler.h>
 #include <asm/page.h>
+#include <asm/early_ioremap.h>
 #include <asm/pgtable_types.h>
 
 #include <lx_emul/io_port.h>
@@ -19,6 +23,7 @@
 #endif
 
 void __iomem *ioremap(resource_size_t offset, unsigned long size);
+void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
 void iounmap(volatile void __iomem *addr);
 
 #define inb lx_emul_io_port_inb
@@ -29,6 +34,9 @@ void iounmap(volatile void __iomem *addr);
 #define outw lx_emul_io_port_outw
 #define outl lx_emul_io_port_outl
 
+void __iomem *ioremap_wc(resource_size_t offset, unsigned long size);
+#define ioremap_wc ioremap_wc
+
 #include <asm-generic/io.h>
 
 #endif /* _ASM_X86_IO_H */