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u-boot/include/lmb.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images Introduce the LMB lib used on PPC in the kernel as a clean way to manage the memory spaces used by various boot images and structures. This code will allow us to simplify the code in bootm and its support functions. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-28 03:51:47 +00:00
#ifndef _LINUX_LMB_H
#define _LINUX_LMB_H
#ifdef __KERNEL__
#include <asm/types.h>
/*
* Logical memory blocks.
*
* Copyright (C) 2001 Peter Bergner, IBM Corp.
*/
#define MAX_LMB_REGIONS 8
struct lmb_property {
Change lmb to use phys_size_t/phys_addr_t This updates the lmb code to use phys_size_t and phys_addr_t instead of unsigned long. Other code which interacts with this code, like getenv_bootm_size() is also updated. Booted on MPC8641HPCN, build-tested ppc, arm, mips. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-10 01:37:18 +00:00
phys_addr_t base;
phys_size_t size;
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images Introduce the LMB lib used on PPC in the kernel as a clean way to manage the memory spaces used by various boot images and structures. This code will allow us to simplify the code in bootm and its support functions. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-28 03:51:47 +00:00
};
struct lmb_region {
unsigned long cnt;
Change lmb to use phys_size_t/phys_addr_t This updates the lmb code to use phys_size_t and phys_addr_t instead of unsigned long. Other code which interacts with this code, like getenv_bootm_size() is also updated. Booted on MPC8641HPCN, build-tested ppc, arm, mips. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-10 01:37:18 +00:00
phys_size_t size;
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images Introduce the LMB lib used on PPC in the kernel as a clean way to manage the memory spaces used by various boot images and structures. This code will allow us to simplify the code in bootm and its support functions. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-28 03:51:47 +00:00
struct lmb_property region[MAX_LMB_REGIONS+1];
};
struct lmb {
struct lmb_region memory;
struct lmb_region reserved;
};
extern void lmb_init(struct lmb *lmb);
fs: prevent overwriting reserved memory This fixes CVE-2018-18440 ("insufficient boundary checks in filesystem image load") by using lmb to check the load size of a file against reserved memory addresses. Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2019-01-14 21:38:19 +00:00
extern void lmb_init_and_reserve(struct lmb *lmb, phys_addr_t base,
phys_size_t size, void *fdt_blob);
Change lmb to use phys_size_t/phys_addr_t This updates the lmb code to use phys_size_t and phys_addr_t instead of unsigned long. Other code which interacts with this code, like getenv_bootm_size() is also updated. Booted on MPC8641HPCN, build-tested ppc, arm, mips. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-10 01:37:18 +00:00
extern long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size);
extern long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size);
extern phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align);
extern phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
phys_addr_t max_addr);
extern phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
phys_addr_t max_addr);
lib: lmb: extend lmb for checks at load time This adds two new functions, lmb_alloc_addr and lmb_get_unreserved_size. lmb_alloc_addr behaves like lmb_alloc, but it tries to allocate a pre-specified address range. Unlike lmb_reserve, this address range must be inside one of the memory ranges that has been set up with lmb_add. lmb_get_unreserved_size returns the number of bytes that can be used up to the next reserved region or the end of valid ram. This can be 0 if the address passed is reserved. Added test for these new functions. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-01-14 21:38:18 +00:00
extern phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base,
phys_size_t size);
extern phys_size_t lmb_get_unreserved_size(struct lmb *lmb, phys_addr_t addr);
Change lmb to use phys_size_t/phys_addr_t This updates the lmb code to use phys_size_t and phys_addr_t instead of unsigned long. Other code which interacts with this code, like getenv_bootm_size() is also updated. Booted on MPC8641HPCN, build-tested ppc, arm, mips. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-10 01:37:18 +00:00
extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr);
Fix LMB type issues The LMB code now uses phys_addr_t and phys_size_t. Also, there were a couple of casting problems in the bootm code that called the LMB functions. Signed-off-by: Andy Fleming <afleming@freescale.com>
2008-07-07 19:24:39 +00:00
extern long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size);
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images Introduce the LMB lib used on PPC in the kernel as a clean way to manage the memory spaces used by various boot images and structures. This code will allow us to simplify the code in bootm and its support functions. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-28 03:51:47 +00:00
extern void lmb_dump_all(struct lmb *lmb);
Change lmb to use phys_size_t/phys_addr_t This updates the lmb code to use phys_size_t and phys_addr_t instead of unsigned long. Other code which interacts with this code, like getenv_bootm_size() is also updated. Booted on MPC8641HPCN, build-tested ppc, arm, mips. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-10 01:37:18 +00:00
static inline phys_size_t
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images Introduce the LMB lib used on PPC in the kernel as a clean way to manage the memory spaces used by various boot images and structures. This code will allow us to simplify the code in bootm and its support functions. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-28 03:51:47 +00:00
lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
{
return type->region[region_nr].size;
}
lmb: only force on arches that use it Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-11-03 16:35:59 +00:00
void board_lmb_reserve(struct lmb *lmb);
void arch_lmb_reserve(struct lmb *lmb);
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images Introduce the LMB lib used on PPC in the kernel as a clean way to manage the memory spaces used by various boot images and structures. This code will allow us to simplify the code in bootm and its support functions. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-28 03:51:47 +00:00
#endif /* __KERNEL__ */
#endif /* _LINUX_LMB_H */
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