Merge tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - removed support for PNX833x alias NXT_STB22x

 - included Ingenic SoC support into generic MIPS kernels

 - added support for new Ingenic SoCs

 - converted workaround selection to use Kconfig

 - replaced old boot mem functions by memblock_*

 - enabled COP2 usage in kernel for Loongson64 to make use
   of 16byte load/stores possible

 - cleanups and fixes

* tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (92 commits)
  MIPS: DEC: Restore bootmem reservation for firmware working memory area
  MIPS: dec: fix section mismatch
  bcm963xx_tag.h: fix duplicated word
  mips: ralink: enable zboot support
  MIPS: ingenic: Remove CPU_SUPPORTS_HUGEPAGES
  MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bit
  MIPS: cpu-probe: introduce exclusive R3k CPU probe
  MIPS: cpu-probe: move fpu probing/handling into its own file
  MIPS: replace add_memory_region with memblock
  MIPS: Loongson64: Clean up numa.c
  MIPS: Loongson64: Select SMP in Kconfig to avoid build error
  mips: octeon: Add Ubiquiti E200 and E220 boards
  MIPS: SGI-IP28: disable use of ll/sc in kernel
  MIPS: tx49xx: move tx4939_add_memory_regions into only user
  MIPS: pgtable: Remove used PAGE_USERIO define
  MIPS: alchemy: Share prom_init implementation
  MIPS: alchemy: Fix build breakage, if TOUCHSCREEN_WM97XX is disabled
  MIPS: process: include exec.h header in process.c
  MIPS: process: Add prototype for function arch_dup_task_struct
  MIPS: idle: Add prototype for function check_wait
  ...

1 files changed, 28 insertions, 48 deletions

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index ee8636ccded2..fccdbe2e7c2b 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -91,45 +91,6 @@ unsigned long ARCH_PFN_OFFSET;
 EXPORT_SYMBOL(ARCH_PFN_OFFSET);
 #endif
 
-void __init add_memory_region(phys_addr_t start, phys_addr_t size, long type)
-{
-	/*
-	 * Note: This function only exists for historical reason,
-	 * new code should use memblock_add or memblock_add_node instead.
-	 */
-
-	/*
-	 * If the region reaches the top of the physical address space, adjust
-	 * the size slightly so that (start + size) doesn't overflow
-	 */
-	if (start + size - 1 == PHYS_ADDR_MAX)
-		--size;
-
-	/* Sanity check */
-	if (start + size < start) {
-		pr_warn("Trying to add an invalid memory region, skipped\n");
-		return;
-	}
-
-	if (start < PHYS_OFFSET)
-		return;
-
-	memblock_add(start, size);
-	/* Reserve any memory except the ordinary RAM ranges. */
-	switch (type) {
-	case BOOT_MEM_RAM:
-		break;
-
-	case BOOT_MEM_NOMAP: /* Discard the range from the system. */
-		memblock_remove(start, size);
-		break;
-
-	default: /* Reserve the rest of the memory types at boot time */
-		memblock_reserve(start, size);
-		break;
-	}
-}
-
 void __init detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_addr_t sz_max)
 {
 	void *dm = &detect_magic;
@@ -146,7 +107,7 @@ void __init detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_add
 		((unsigned long long) sz_min) / SZ_1M,
 		((unsigned long long) sz_max) / SZ_1M);
 
-	add_memory_region(start, size, BOOT_MEM_RAM);
+	memblock_add(start, size);
 }
 
 /*
@@ -396,7 +357,7 @@ static int __init early_parse_mem(char *p)
 	if (*p == '@')
 		start = memparse(p + 1, &p);
 
-	add_memory_region(start, size, BOOT_MEM_RAM);
+	memblock_add(start, size);
 
 	return 0;
 }
@@ -422,13 +383,14 @@ static int __init early_parse_memmap(char *p)
 
 	if (*p == '@') {
 		start_at = memparse(p+1, &p);
-		add_memory_region(start_at, mem_size, BOOT_MEM_RAM);
+		memblock_add(start_at, mem_size);
 	} else if (*p == '#') {
 		pr_err("\"memmap=nn#ss\" (force ACPI data) invalid on MIPS\n");
 		return -EINVAL;
 	} else if (*p == '$') {
 		start_at = memparse(p+1, &p);
-		add_memory_region(start_at, mem_size, BOOT_MEM_RESERVED);
+		memblock_add(start_at, mem_size);
+		memblock_reserve(start_at, mem_size);
 	} else {
 		pr_err("\"memmap\" invalid format!\n");
 		return -EINVAL;
@@ -443,7 +405,7 @@ static int __init early_parse_memmap(char *p)
 early_param("memmap", early_parse_memmap);
 
 #ifdef CONFIG_PROC_VMCORE
-unsigned long setup_elfcorehdr, setup_elfcorehdr_size;
+static unsigned long setup_elfcorehdr, setup_elfcorehdr_size;
 static int __init early_parse_elfcorehdr(char *p)
 {
 	phys_addr_t start, end;
@@ -472,6 +434,11 @@ early_param("elfcorehdr", early_parse_elfcorehdr);
 #endif
 
 #ifdef CONFIG_KEXEC
+
+/* 64M alignment for crash kernel regions */
+#define CRASH_ALIGN	SZ_64M
+#define CRASH_ADDR_MAX	SZ_512M
+
 static void __init mips_parse_crashkernel(void)
 {
 	unsigned long long total_mem;
@@ -484,9 +451,22 @@ static void __init mips_parse_crashkernel(void)
 	if (ret != 0 || crash_size <= 0)
 		return;
 
-	if (!memblock_find_in_range(crash_base, crash_base + crash_size, crash_size, 1)) {
-		pr_warn("Invalid memory region reserved for crash kernel\n");
-		return;
+	if (crash_base <= 0) {
+		crash_base = memblock_find_in_range(CRASH_ALIGN, CRASH_ADDR_MAX,
+							crash_size, CRASH_ALIGN);
+		if (!crash_base) {
+			pr_warn("crashkernel reservation failed - No suitable area found.\n");
+			return;
+		}
+	} else {
+		unsigned long long start;
+
+		start = memblock_find_in_range(crash_base, crash_base + crash_size,
+						crash_size, 1);
+		if (start != crash_base) {
+			pr_warn("Invalid memory region reserved for crash kernel\n");
+			return;
+		}
 	}
 
 	crashk_res.start = crash_base;
@@ -621,7 +601,7 @@ static void __init bootcmdline_init(void)
  * arch_mem_init - initialize memory management subsystem
  *
  *  o plat_mem_setup() detects the memory configuration and will record detected
- *    memory areas using add_memory_region.
+ *    memory areas using memblock_add.
  *
  * At this stage the memory configuration of the system is known to the
  * kernel but generic memory management system is still entirely uninitialized.