The following commit has been merged into the efi/core branch of tip: Commit-ID: 54649911f31b6e7c2a79a1426ca98259139e4c35 Gitweb: https://git.kernel.org/tip/54649911f31b6e7c2a79a1426ca98259139e4c35 Author: Ard Biesheuvel <a...@kernel.org> AuthorDate: Thu, 29 Oct 2020 14:49:01 +01:00 Committer: Ard Biesheuvel <a...@kernel.org> CommitterDate: Wed, 09 Dec 2020 08:37:27 +01:00
efi: stub: get rid of efi_get_max_fdt_addr() Now that ARM started following the example of arm64 and RISC-V, and no longer imposes any restrictions on the placement of the FDT in memory at boot, we no longer need per-arch implementations of efi_get_max_fdt_addr() to factor out the differences. So get rid of it. Signed-off-by: Ard Biesheuvel <a...@kernel.org> Reviewed-by: Atish Patra <atish.pa...@wdc.com> Link: https://lore.kernel.org/r/20201029134901.9773-1-a...@kernel.org --- arch/arm/include/asm/efi.h | 6 ------ arch/arm64/include/asm/efi.h | 6 ------ arch/riscv/include/asm/efi.h | 6 ------ drivers/firmware/efi/libstub/efi-stub.c | 1 - drivers/firmware/efi/libstub/efistub.h | 1 - drivers/firmware/efi/libstub/fdt.c | 3 +-- 6 files changed, 1 insertion(+), 22 deletions(-) diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h index 1536805..abae071 100644 --- a/arch/arm/include/asm/efi.h +++ b/arch/arm/include/asm/efi.h @@ -73,12 +73,6 @@ static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) */ #define EFI_PHYS_ALIGN max(SZ_2M, roundup_pow_of_two(TEXT_OFFSET)) -/* on ARM, the FDT should be located in a lowmem region */ -static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr) -{ - return round_down(image_addr, EFI_PHYS_ALIGN) + SZ_512M; -} - /* on ARM, the initrd should be loaded in a lowmem region */ static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) { diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index 00bd1e1..3578aba 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -64,12 +64,6 @@ efi_status_t __efi_rt_asm_wrapper(void *, const char *, ...); #define EFI_KIMG_ALIGN \ (SEGMENT_ALIGN > THREAD_ALIGN ? SEGMENT_ALIGN : THREAD_ALIGN) -/* on arm64, the FDT may be located anywhere in system RAM */ -static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr) -{ - return ULONG_MAX; -} - /* * On arm64, we have to ensure that the initrd ends up in the linear region, * which is a 1 GB aligned region of size '1UL << (VA_BITS_MIN - 1)' that is diff --git a/arch/riscv/include/asm/efi.h b/arch/riscv/include/asm/efi.h index 7542282..6d98cd9 100644 --- a/arch/riscv/include/asm/efi.h +++ b/arch/riscv/include/asm/efi.h @@ -27,12 +27,6 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md); #define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE) -/* on RISC-V, the FDT may be located anywhere in system RAM */ -static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr) -{ - return ULONG_MAX; -} - /* Load initrd at enough distance from DRAM start */ static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) { diff --git a/drivers/firmware/efi/libstub/efi-stub.c b/drivers/firmware/efi/libstub/efi-stub.c index 914a343..ec2f398 100644 --- a/drivers/firmware/efi/libstub/efi-stub.c +++ b/drivers/firmware/efi/libstub/efi-stub.c @@ -273,7 +273,6 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, install_memreserve_table(); status = allocate_new_fdt_and_exit_boot(handle, &fdt_addr, - efi_get_max_fdt_addr(image_addr), initrd_addr, initrd_size, cmdline_ptr, fdt_addr, fdt_size); if (status != EFI_SUCCESS) diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h index b8ec29d..b50a6c6 100644 --- a/drivers/firmware/efi/libstub/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h @@ -750,7 +750,6 @@ efi_status_t efi_exit_boot_services(void *handle, efi_status_t allocate_new_fdt_and_exit_boot(void *handle, unsigned long *new_fdt_addr, - unsigned long max_addr, u64 initrd_addr, u64 initrd_size, char *cmdline_ptr, unsigned long fdt_addr, diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c index 368cd60..365c3a4 100644 --- a/drivers/firmware/efi/libstub/fdt.c +++ b/drivers/firmware/efi/libstub/fdt.c @@ -238,7 +238,6 @@ static efi_status_t exit_boot_func(struct efi_boot_memmap *map, efi_status_t allocate_new_fdt_and_exit_boot(void *handle, unsigned long *new_fdt_addr, - unsigned long max_addr, u64 initrd_addr, u64 initrd_size, char *cmdline_ptr, unsigned long fdt_addr, @@ -275,7 +274,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(void *handle, efi_info("Exiting boot services and installing virtual address map...\n"); map.map = &memory_map; - status = efi_allocate_pages(MAX_FDT_SIZE, new_fdt_addr, max_addr); + status = efi_allocate_pages(MAX_FDT_SIZE, new_fdt_addr, ULONG_MAX); if (status != EFI_SUCCESS) { efi_err("Unable to allocate memory for new device tree.\n"); goto fail;
