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| author |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-06-01 13:40:31 +0200 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2015-06-02 16:31:25 +0100 |
| commit | 24bbd929e6b9e62afd263c42b4318d3b603c956c (patch) | |
| tree | 78658f1cf02b8c511195ad9a6c927b71ee143625 /include/linux/of_fdt.h | |
| parent | arm64: context-switch user tls register tpidr_el0 for compat tasks (diff) | |
| download | linux-dev-24bbd929e6b9e62afd263c42b4318d3b603c956c.tar.xz linux-dev-24bbd929e6b9e62afd263c42b4318d3b603c956c.zip | |
of/fdt: split off FDT self reservation from memreserve processing
This splits off the reservation of the memory occupied by the FDT
binary itself from the processing of the memory reservations it
contains. This is necessary because the physical address of the FDT,
which is needed to perform the reservation, may not be known to the
FDT driver core, i.e., it may be mapped outside the linear direct
mapping, in which case __pa() returns a bogus value.
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'include/linux/of_fdt.h')
| -rw-r--r-- | include/linux/of_fdt.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 587ee507965d..fd627a58068f 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -64,6 +64,7 @@ extern int early_init_dt_scan_chosen(unsigned long node, const char *uname, extern int early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data); extern void early_init_fdt_scan_reserved_mem(void); +extern void early_init_fdt_reserve_self(void); extern void early_init_dt_add_memory_arch(u64 base, u64 size); extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, bool no_map); @@ -91,6 +92,7 @@ extern u64 fdt_translate_address(const void *blob, int node_offset); extern void of_fdt_limit_memory(int limit); #else /* CONFIG_OF_FLATTREE */ static inline void early_init_fdt_scan_reserved_mem(void) {} +static inline void early_init_fdt_reserve_self(void) {} static inline const char *of_flat_dt_get_machine_name(void) { return NULL; } static inline void unflatten_device_tree(void) {} static inline void unflatten_and_copy_device_tree(void) {} |