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

Browse Source 
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
  ...
This commit is contained in:
Linus Torvalds
2020-10-16 12:40:55 -07:00
parent 847d4287a0 cf3af0a4d3
commit 09a31a7e37
165 changed files with 1755 additions and 3706 deletions
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76
arch/mips/kernel/setup.c
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@ -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.