From: Rob Herring <rob.herring@xxxxxxxxxxx>
Create a weak version of early_init_dt_add_memory_arch which uses
memblock or is an empty function when memblock is not enabled. This
will unify all architectures except ones with custom memory bank
structs.
Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Jonas Bonn <jonas@xxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: x86@xxxxxxxxxx
Cc: Grant Likely <grant.likely@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: microblaze-uclinux@xxxxxxxxxxxxxx
Cc: linux@xxxxxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
---
arch/arm64/kernel/setup.c | 18 ------------------
arch/metag/kernel/devtree.c | 6 ------
arch/microblaze/kernel/prom.c | 5 -----
arch/openrisc/kernel/prom.c | 6 ------
arch/x86/kernel/devicetree.c | 10 ----------
drivers/of/fdt.c | 11 +++++++++++
6 files changed, 11 insertions(+), 45 deletions(-)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b4461e1..3790004 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -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.
*/
diff --git a/arch/metag/kernel/devtree.c b/arch/metag/kernel/devtree.c
index 049af56..2c6ee6d 100644
--- a/arch/metag/kernel/devtree.c
+++ b/arch/metag/kernel/devtree.c
@@ -23,12 +23,6 @@
#include <asm/page.h>
#include <asm/mach/arch.h>
-void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-{
- pr_err("%s(%llx, %llx)\n",
- __func__, base, size);
-}
-
void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
return alloc_bootmem_align(size, align);
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index e13686e..951e4d6 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -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;
diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index fbed459..6dbcaa8 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -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);
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 0db805c..2f5cb37 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -36,16 +36,6 @@ unsigned long pci_address_to_pio(phys_addr_t address)
}
EXPORT_SYMBOL_GPL(pci_address_to_pio);
-void __init early_init_dt_scan_chosen_arch(unsigned long node)
-{
- BUG();
-}
-
-void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-{
- BUG();
-}
-
void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 0714dd4..a9dce7a 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -688,6 +688,17 @@ u64 __init dt_mem_next_cell(int s, __be32 **cellp)
return of_read_number(p, s);
}
+void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+#ifdef CONFIG_HAVE_MEMBLOCK
+ base &= PAGE_MASK;
+ size &= PAGE_MASK;
+ memblock_add(base, size);
+#else
+ pr_err("%s: ignoring memory (%llx, %llx)\n", __func__, base, size);
+#endif
+}
+
/**
* early_init_dt_scan_memory - Look for an parse memory nodes
*/
--
1.8.1.2
--
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