[PATCH v2 10/12] MIPS: Add the concept of BOOT_MEM_KERNEL to boot_mem_map.

["Steven J. Hill" <steven.hill@xxxxxxxxxx>]

From: David Daney <david.daney@xxxxxxxxxx>

No change to memory initialization, but this gets us ready for the
next patches adding hotplug CPU and NUMA support for Octeon.

Signed-off-by: David Daney <david.daney@xxxxxxxxxx>
Signed-off-by: Carlos Munoz <cmunoz@xxxxxxxxxxxxxxxxxx>
---
 arch/mips/include/asm/bootinfo.h |  1 +
 arch/mips/kernel/setup.c         | 30 +++++++++++++++++++++---------
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/arch/mips/include/asm/bootinfo.h b/arch/mips/include/asm/bootinfo.h
index e26a093..71dd16e 100644
--- a/arch/mips/include/asm/bootinfo.h
+++ b/arch/mips/include/asm/bootinfo.h
@@ -90,6 +90,7 @@ extern unsigned long mips_machtype;
 #define BOOT_MEM_ROM_DATA	2
 #define BOOT_MEM_RESERVED	3
 #define BOOT_MEM_INIT_RAM	4
+#define BOOT_MEM_KERNEL		5
 
 /*
  * A memory map that's built upon what was determined
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index fe39397..7a058821 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -189,9 +189,15 @@ static void __init print_memory_map(void)
 	const int field = 2 * sizeof(unsigned long);
 
 	for (i = 0; i < boot_mem_map.nr_map; i++) {
-		printk(KERN_INFO " memory: %0*Lx @ %0*Lx ",
-		       field, (unsigned long long) boot_mem_map.map[i].size,
-		       field, (unsigned long long) boot_mem_map.map[i].addr);
+		if (IS_ENABLED(CONFIG_RANDOMIZE_BASE) &&
+		    (boot_mem_map.map[i].type == BOOT_MEM_KERNEL))
+			printk(KERN_INFO " memory: %.*s @ %.*s ",
+				field, "----------------",
+				field, "----------------");
+		else
+			printk(KERN_INFO " memory: %0*Lx @ %0*Lx ",
+			       field, (unsigned long long) boot_mem_map.map[i].size,
+			       field, (unsigned long long) boot_mem_map.map[i].addr);
 
 		switch (boot_mem_map.map[i].type) {
 		case BOOT_MEM_RAM:
@@ -200,6 +206,9 @@ static void __init print_memory_map(void)
 		case BOOT_MEM_INIT_RAM:
 			printk(KERN_CONT "(usable after init)\n");
 			break;
+		case BOOT_MEM_KERNEL:
+			printk(KERN_CONT "(kernel data and code)\n");
+			break;
 		case BOOT_MEM_ROM_DATA:
 			printk(KERN_CONT "(ROM data)\n");
 			break;
@@ -824,6 +833,7 @@ static void __init arch_mem_init(char **cmdline_p)
 {
 	struct memblock_region *reg;
 	extern void plat_mem_setup(void);
+	phys_addr_t kernel_begin, init_begin, init_end, kernel_end;
 
 	/* call board setup routine */
 	plat_mem_setup();
@@ -834,12 +844,13 @@ static void __init arch_mem_init(char **cmdline_p)
 	 * into another memory section you don't want that to be
 	 * freed when the initdata is freed.
 	 */
-	arch_mem_addpart(PFN_DOWN(__pa_symbol(&_text)) << PAGE_SHIFT,
-			 PFN_UP(__pa_symbol(&_edata)) << PAGE_SHIFT,
-			 BOOT_MEM_RAM);
-	arch_mem_addpart(PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT,
-			 PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT,
-			 BOOT_MEM_INIT_RAM);
+	kernel_begin = PFN_DOWN(__pa_symbol(&_text)) << PAGE_SHIFT;
+	kernel_end = PFN_UP(__pa_symbol(&_end)) << PAGE_SHIFT;
+	init_begin = PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT;
+	init_end = PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT;
+	arch_mem_addpart(kernel_begin, init_begin, BOOT_MEM_KERNEL);
+	arch_mem_addpart(init_end, kernel_end, BOOT_MEM_KERNEL);
+	arch_mem_addpart(init_begin, init_end, BOOT_MEM_INIT_RAM);
 
 	pr_info("Determined physical RAM map:\n");
 	print_memory_map();
@@ -949,6 +960,7 @@ static void __init resource_init(void)
 		case BOOT_MEM_RAM:
 		case BOOT_MEM_INIT_RAM:
 		case BOOT_MEM_ROM_DATA:
+		case BOOT_MEM_KERNEL:
 			res->name = "System RAM";
 			res->flags |= IORESOURCE_SYSRAM;
 			break;
-- 
2.1.4