dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 08:42:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

efi_loader: round the memory area in efi_add_memory_map()

Browse Source 
Virtually all callers of this function do the rounding on their own.
Some do it right, some don't. Instead of doing this in each caller,
do the rounding in efi_add_memory_map(). Change the size parameter
to bytes instead of pages and remove aligning and size calculation in
all callers.

There is no more need to make the original efi_add_memory_map() (which
takes pages as size) available outside the module. Thus rename it to
efi_add_memory_map_pg() and make it static to prevent further misuse
outside the module.

Signed-off-by: Michael Walle <michael@walle.cc>
Add missing comma in sunxi_display.c.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Michael Walle
2020-05-17 12:29:19 +02:00
committed by Heinrich Schuchardt
parent 515f613253
commit 714497e327
12 changed files with 62 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
lib/efi_loader/efi_memory.c
View File

@@ -229,7 +229,7 @@ static s64 efi_mem_carve_out(struct efi_mem_list *map,
}
/**
* efi_add_memory_map() - add memory area to the memory map
* efi_add_memory_map_pg() - add pages to the memory map
*
* @start: start address, must be a multiple of EFI_PAGE_SIZE
* @pages: number of pages to add
@@ -237,8 +237,9 @@ static s64 efi_mem_carve_out(struct efi_mem_list *map,
* @overlap_only_ram: the memory area must overlap existing
* Return: status code
*/
efi_status_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
bool overlap_only_ram)
static efi_status_t efi_add_memory_map_pg(u64 start, u64 pages,
int memory_type,
bool overlap_only_ram)
{
struct list_head *lhandle;
struct efi_mem_list *newlist;
@@ -343,6 +344,28 @@ efi_status_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
return EFI_SUCCESS;
}
/**
* efi_add_memory_map() - add memory area to the memory map
*
* @start: start address of the memory area
* @size: length in bytes of the memory area
* @memory_type: type of memory added
*
* Return: status code
*
* This function automatically aligns the start and size of the memory area
* to EFI_PAGE_SIZE.
*/
efi_status_t efi_add_memory_map(u64 start, u64 size, int memory_type)
{
u64 pages;
pages = efi_size_in_pages(size + (start & EFI_PAGE_MASK));
start &= ~EFI_PAGE_MASK;
return efi_add_memory_map_pg(start, pages, memory_type, false);
}
/**
* efi_check_allocated() - validate address to be freed
*
@@ -469,7 +492,8 @@ efi_status_t efi_allocate_pages(int type, int memory_type,
}
/* Reserve that map in our memory maps */
if (efi_add_memory_map(addr, pages, memory_type, true) != EFI_SUCCESS)
ret = efi_add_memory_map_pg(addr, pages, memory_type, true);
if (ret != EFI_SUCCESS)
/* Map would overlap, bail out */
return EFI_OUT_OF_RESOURCES;
@@ -514,7 +538,8 @@ efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages)
return EFI_INVALID_PARAMETER;
}
ret = efi_add_memory_map(memory, pages, EFI_CONVENTIONAL_MEMORY, false);
ret = efi_add_memory_map_pg(memory, pages, EFI_CONVENTIONAL_MEMORY,
false);
/* Merging of adjacent free regions is missing */
if (ret != EFI_SUCCESS)
@@ -680,8 +705,8 @@ efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
pages = (ram_end - ram_start) >> EFI_PAGE_SHIFT;
efi_add_memory_map(ram_start, pages,
EFI_CONVENTIONAL_MEMORY, false);
efi_add_memory_map_pg(ram_start, pages,
EFI_CONVENTIONAL_MEMORY, false);
/*
* Boards may indicate to the U-Boot memory core that they
@@ -691,14 +716,14 @@ efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
*/
if (ram_top < ram_start) {
/* ram_top is before this region, reserve all */
efi_add_memory_map(ram_start, pages,
EFI_BOOT_SERVICES_DATA, true);
efi_add_memory_map_pg(ram_start, pages,
EFI_BOOT_SERVICES_DATA, true);
} else if ((ram_top >= ram_start) && (ram_top < ram_end)) {
/* ram_top is inside this region, reserve parts */
pages = (ram_end - ram_top) >> EFI_PAGE_SHIFT;
efi_add_memory_map(ram_top, pages,
EFI_BOOT_SERVICES_DATA, true);
efi_add_memory_map_pg(ram_top, pages,
EFI_BOOT_SERVICES_DATA, true);
}
return EFI_SUCCESS;
@@ -743,7 +768,8 @@ static void add_u_boot_and_runtime(void)
uboot_stack_size) & ~EFI_PAGE_MASK;
uboot_pages = ((uintptr_t)map_sysmem(gd->ram_top - 1, 0) -
uboot_start + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
efi_add_memory_map(uboot_start, uboot_pages, EFI_LOADER_DATA, false);
efi_add_memory_map_pg(uboot_start, uboot_pages, EFI_LOADER_DATA,
false);
#if defined(__aarch64__)
/*
@@ -762,8 +788,8 @@ static void add_u_boot_and_runtime(void)
runtime_end = (ulong)&__efi_runtime_stop;
runtime_end = (runtime_end + runtime_mask) & ~runtime_mask;
runtime_pages = (runtime_end - runtime_start) >> EFI_PAGE_SHIFT;
efi_add_memory_map(runtime_start, runtime_pages,
EFI_RUNTIME_SERVICES_CODE, false);
efi_add_memory_map_pg(runtime_start, runtime_pages,
EFI_RUNTIME_SERVICES_CODE, false);
}
int efi_memory_init(void)