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-rw-r--r--arch/x86/include/asm/global_data.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index aeab3e52e3..24e305239b 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -29,6 +29,19 @@ struct memory_info {
struct memory_area area[CONFIG_NR_DRAM_BANKS];
};
+#define MAX_MTRR_REQUESTS 8
+
+/**
+ * A request for a memory region to be set up in a particular way. These
+ * requests are processed before board_init_r() is called. They are generally
+ * optional and can be ignored with some performance impact.
+ */
+struct mtrr_request {
+ int type; /* MTRR_TYPE_... */
+ uint64_t start;
+ uint64_t size;
+};
+
/* Architecture-specific global data */
struct arch_global_data {
struct global_data *gd_addr; /* Location of Global Data */
@@ -49,6 +62,8 @@ struct arch_global_data {
#ifdef CONFIG_HAVE_FSP
void *hob_list; /* FSP HOB list */
#endif
+ struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS];
+ int mtrr_req_count;
};
#endif
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