u-boot.git/lib/lmb.c, branch v2023.07.01

lmb: add max number of region in lmb_dump_region() output

2023-04-06T19:08:46Z

Add the max number of region in lmb dump; this patch allows to check the limit for usage of the LMB regions, memory or reserved. Result on STM32MP157C-DK2: STM32MP> bdinfo ..... lmb_dump_all: memory.cnt = 0x1 / max = 0x2 memory[0] [0xc0000000-0xdfffffff], 0x20000000 bytes flags: 0 reserved.cnt = 0x6 / max = 0x10 reserved[0] [0x10000000-0x10045fff], 0x00046000 bytes flags: 4 reserved[1] [0x30000000-0x3003ffff], 0x00040000 bytes flags: 4 reserved[2] [0x38000000-0x3800ffff], 0x00010000 bytes flags: 4 reserved[3] [0xd4000000-0xd7ffffff], 0x04000000 bytes flags: 4 reserved[4] [0xdcae5000-0xdfffffff], 0x0351b000 bytes flags: 0 reserved[5] [0xddafb5b8-0xdfffffff], 0x02504a48 bytes flags: 0 .... Reported-by: Mark Millard Signed-off-by: Patrick Delaunay

lmb: Fix LMB_MEMORY_REGIONS flag usage

2023-04-06T19:08:46Z

Remove test on CONFIG_LMB_MEMORY_REGIONS introduced by commit 7c1860fce4e3 ("lmb: Fix lmb property's defination under struct lmb"). This code in lmb_init() is strange, because if CONFIG_LMB_USE_MAX_REGIONS and CONFIG_LMB_MEMORY_REGIONS are not defined, the implicit #else is empty and the required initialization is not done: lmb->memory.max = ? lmb->reserved.max = ? But this setting is not possible: - CONFIG_LMB_USE_MAX_REGIONS not defined - CONFIG_LMB_MEMORY_REGIONS not defined because CONFIG_LMB_MEMORY_REGIONS and CONFIG_LMB_RESERVED_REGIONS are defined as soon as the CONFIG_LMB_USE_MAX_REGIONS is not defined. This patch removes this impossible case #elif and I add some explanation in lmb.h to explain why in the struct lmb {} the lmb property is defined if CONFIG_LMB_MEMORY_REGIONS is NOT defined. This patch also removes CONFIG_LMB_XXX dependency on CONFIG_LMB as these defines are used in API file lmb.h and not only in library file. Fixes: 5e2548c1d6e03 ("lmb: Fix LMB_MEMORY_REGIONS flag usage") Reported-by: Mark Millard Signed-off-by: Patrick Delaunay Acked-by: Michal Simek

lmb: Treat a region which is a subset as equal

2023-02-12T16:54:18Z

In various cases logical memory blocks are coalesced; As a result doing a strict check whether memory blocks are the same doesn't necessarily work as a previous addition of a given block might have been merged into a bigger block. Fix this by considering a block is already registered if it's a pure subset of one of the existing blocks. Signed-off-by: Sjoerd Simons

lmb: Set correct lmb flags for EFI memory map entries

2023-02-06T17:07:18Z

When adding reserved memory areas from the EFI memory map set the NOMAP flag when applicable. When this isn't done adding "no-map" flagged entries from the fdt after receiving the same from the EFI memory map fails due to non-matching flags. Signed-off-by: Sjoerd Simons

lmb: consider EFI memory map

2023-01-06T21:27:30Z

Add reservations for all EFI memory areas that are not EFI_CONVENTIONAL_MEMORY. Signed-off-by: Heinrich Schuchardt

lmb: Fix LMB_MEMORY_REGIONS flag usage

2022-08-10T17:38:30Z

This patch is fixing a broken boot observed on stm32mp157c-dk2 board. IS_ENABLED macro should be used to check if a compilation flag is set to "y" or "m". LMB_MEMORY_REGIONS is set to a numerical value, IS_ENABLED macro is not suitable in this case. Fixes: 7c1860fce4e3 ("lmb: Fix lmb property's defination under struct lmb") Signed-off-by: Patrice Chotard Acked-by: Michal Simek Reviewed-by: Tom Rini

lmb: Fix lmb property's defination under struct lmb

2022-07-26T06:23:54Z

Under struct lmb {} the lmb property's should be defined only if CONFIG_LMB_MEMORY_REGIONS is defined. Signed-off-by: Ashok Reddy Soma Signed-off-by: Michal Simek Signed-off-by: Michal Simek Link: https://lore.kernel.org/r/c24a2b1d6f5db4eb65393f6a77fae129b30b6233.1657183534.git.michal.simek@amd.com

lmb: Reserve U-Boot separately if relocation is disabled

2021-11-18T23:20:19Z

In case U-Boot starts with GD_FLG_SKIP_RELOC, the U-Boot code is not relocated, however the stack and heap is at the end of DRAM after relocation. Reserve a LMB area for the non-relocated U-Boot code so it won't be overwritten. Signed-off-by: Marek Vasut Cc: Simon Glass Cc: Tom Rini

image: Drop IMAGE_ENABLE_OF_LIBFDT

2021-10-08T19:53:26Z

Add a host Kconfig for OF_LIBFDT. With this we can use CONFIG_IS_ENABLED(OF_LIBFDT) directly in the tools build, so drop the unnecessary indirection. Signed-off-by: Simon Glass Reviewed-by: Alexandru Gagniuc

lmb: Add generic arch_lmb_reserve_generic()

2021-09-23T18:15:32Z

The arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() implementations are all mostly the same, except for a couple of details. Implement a generic arch_lmb_reserve_generic() function which can be parametrized enough to cater for those differences between architectures. This can also be parametrized enough so it can handle cases where U-Boot is not relocated to the end of DRAM e.g. because there is some other reserved memory past U-Boot (e.g. unmovable firmware for coprocessor), it is not relocated at all, and other such use cases. Signed-off-by: Marek Vasut Cc: Alexey Brodkin Cc: Angelo Dureghello Cc: Daniel Schwierzeck Cc: Eugeniy Paltsev Cc: Hai Pham Cc: Michal Simek Cc: Simon Goldschmidt Cc: Tom Rini Cc: Wolfgang Denk Reviewed-by: Tom Rini