Commit 068f6310 authored by Rob Herring's avatar Rob Herring
Browse files

of: create default early_init_dt_add_memory_arch 



Create a weak version of early_init_dt_add_memory_arch which uses
memblock. This will unify all architectures except ones with custom
memory bank structs.

Signed-off-by: default avatarRob Herring <rob.herring@calxeda.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Acked-by: default avatarGrant Likely <grant.likely@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux@lists.openrisc.net
Cc: devicetree@vger.kernel.org
parent 7745fc1f

arch/arm64/kernel/setup.c

+0 −18
Original line number Diff line number Diff line
@@ -147,24 +147,6 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys) 
	pr_info("Machine: %s\n", machine_name);

}



void __init early_init_dt_add_memory_arch(u64 base, u64 size)

{

	base &= PAGE_MASK;

	size &= PAGE_MASK;

	if (base + size < PHYS_OFFSET) {

		pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",

			   base, base + size);

		return;

	}

	if (base < PHYS_OFFSET) {

		pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",

			   base, PHYS_OFFSET);

		size -= PHYS_OFFSET - base;

		base = PHYS_OFFSET;

	}

	memblock_add(base, size);

}



/*

 * Limit the memory size that was specified via FDT.

 */

arch/microblaze/kernel/prom.c

+0 −5
Original line number Diff line number Diff line
@@ -41,11 +41,6 @@ 
#include <asm/sections.h>

#include <asm/pci-bridge.h>



void __init early_init_dt_add_memory_arch(u64 base, u64 size)

{

	memblock_add(base, size);

}



#ifdef CONFIG_EARLY_PRINTK

static char *stdout;

arch/openrisc/kernel/prom.c

+0 −6
Original line number Diff line number Diff line
@@ -47,12 +47,6 @@ 
#include <asm/sections.h>

#include <asm/setup.h>



void __init early_init_dt_add_memory_arch(u64 base, u64 size)

{

	size &= PAGE_MASK;

	memblock_add(base, size);

}



void __init early_init_devtree(void *params)

{

	early_init_dt_scan(params);

drivers/of/fdt.c

+19 −0
Original line number Diff line number Diff line
@@ -775,6 +775,25 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, 
}



#ifdef CONFIG_HAVE_MEMBLOCK

void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)

{

	const u64 phys_offset = __pa(PAGE_OFFSET);

	base &= PAGE_MASK;

	size &= PAGE_MASK;

	if (base + size < phys_offset) {

		pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",

			   base, base + size);

		return;

	}

	if (base < phys_offset) {

		pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",

			   base, phys_offset);

		size -= phys_offset - base;

		base = phys_offset;

	}

	memblock_add(base, size);

}



/*

 * called from unflatten_device_tree() to bootstrap devicetree itself

 * Architectures can override this definition if memblock isn't used

CRA Git | Maintained and supported by SUSTech CRA and CCSE