LoongArch: Fix reserving screen info memory for above-4G firmware

chenhuacai · chenhuacai · commit 55dc2f8f2634 · 2024-12-02T16:42:07.000+08:00
Since screen_info.lfb_base is a __u32 type, an above-4G address need an
ext_lfb_base to present its higher 32bits. In init_screen_info() we can
use __screen_info_lfb_base() to handle this case for reserving screen
info memory.

Signed-off-by: Xuefeng Zhao &lt;zhaoxuefeng@loongson.cn&gt;
Signed-off-by: Jianmin Lv &lt;lvjianmin@loongson.cn&gt;
Signed-off-by: Tianyang Zhang &lt;zhangtianyang@loongson.cn&gt;
Signed-off-by: Huacai Chen &lt;chenhuacai@loongson.cn&gt;
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c
@@ -95,7 +95,7 @@ static void __init init_screen_info(void)
 	memset(si, 0, sizeof(*si));
 	early_memunmap(si, sizeof(*si));
 
-	memblock_reserve(screen_info.lfb_base, screen_info.lfb_size);
+	memblock_reserve(__screen_info_lfb_base(&screen_info), screen_info.lfb_size);
 }
 
 void __init efi_init(void)

Original file line number	Diff line number	Diff line change
`@@ -95,7 +95,7 @@ static void __init init_screen_info(void)`
`95`	`95`	`memset(si, 0, sizeof(*si));`
`96`	`96`	`early_memunmap(si, sizeof(*si));`
`97`	`97`
`98`		`- memblock_reserve(screen_info.lfb_base, screen_info.lfb_size);`
	`98`	`+ memblock_reserve(__screen_info_lfb_base(&screen_info), screen_info.lfb_size);`
`99`	`99`	`}`
`100`	`100`
`101`	`101`	`void __init efi_init(void)`