From 23d62dd15c39b3628b102cf6417d476e78ffcdaf Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Thu, 12 Apr 2018 10:36:57 +0200 Subject: lib/bootmem: Add more bootmem tags Introduce new bootmem tags to allow more fine grained control over buffer allocation on various platforms. The new tags are: BM_MEM_RAMSTAGE : Memory where any kind of boot firmware resides and that should not be touched by bootmem (by example: stack, TTB, program, ...). BM_MEM_PAYLOAD : Memory where any kind of payload resides and that should not be touched by bootmem. Starting with this commit all bootmem methods will no longer see memory that is used by coreboot as usable RAM. Bootmem changes: * Introduce a weak function to add platform specific memranges. * Mark memory allocated by bootmem as BM_TAG_PAYLOAD. * Assert on failures. * Add _stack and _program as BM_MEM_RAMSTAGE. ARMv7 and ARMv8 specific changes: * Add _ttb and _postram_cbfs_cache as BM_MEM_RAMSTAGE. ARMv7 specific changes: * Add _ttb_subtables as BM_MEM_RAMSTAGE. Change-Id: I0c983ce43616147c519a43edee3b61d54eadbb9a Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/25383 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/arch/arm/tables.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'src/arch/arm/tables.c') diff --git a/src/arch/arm/tables.c b/src/arch/arm/tables.c index eef6bf2ffd..682c2bc39e 100644 --- a/src/arch/arm/tables.c +++ b/src/arch/arm/tables.c @@ -18,6 +18,7 @@ #include #include #include +#include void arch_write_tables(uintptr_t coreboot_table) { @@ -25,6 +26,16 @@ void arch_write_tables(uintptr_t coreboot_table) void bootmem_arch_add_ranges(void) { + DECLARE_OPTIONAL_REGION(ttb_subtables); + + bootmem_add_range((uintptr_t)_ttb, _ttb_size, BM_MEM_RAMSTAGE); + bootmem_add_range((uintptr_t)_ttb_subtables, _ttb_subtables_size, + BM_MEM_RAMSTAGE); + + if (!IS_ENABLED(CONFIG_COMMON_CBFS_SPI_WRAPPER)) + return; + bootmem_add_range((uintptr_t)_postram_cbfs_cache, + _postram_cbfs_cache_size, BM_MEM_RAMSTAGE); } void lb_arch_add_records(struct lb_header *header) -- cgit v1.2.3