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[2a01:238:438b:c500:173d:9f52:ddab:ee01]) by mx.google.com with ESMTPS id ffacd0b85a97d-3a35ca8adfasi7574622f8f.625.2025.05.20.05.06.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 May 2025 05:06:40 -0700 (PDT) Received-SPF: pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; Authentication-Results: mx.google.com; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 7EF1482BBF; Tue, 20 May 2025 14:06:29 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by phobos.denx.de (Postfix, from userid 109) id 0DB7C82C30; Tue, 20 May 2025 14:06:29 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-1.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_VALIDITY_RPBL_BLOCKED, RCVD_IN_VALIDITY_SAFE_BLOCKED,SPF_HELO_NONE,SPF_SOFTFAIL autolearn=no autolearn_force=no version=3.4.2 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by phobos.denx.de (Postfix) with ESMTP id 952F482A8D for ; Tue, 20 May 2025 14:06:26 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=fail smtp.mailfrom=sughosh.ganu@linaro.org Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9FCB11516; Tue, 20 May 2025 05:06:12 -0700 (PDT) Received: from a079122.blr.arm.com (a079122.arm.com [10.164.21.38]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 03B7A3F5A1; Tue, 20 May 2025 05:06:22 -0700 (PDT) From: Sughosh Ganu To: u-boot@lists.denx.de Cc: Ilias Apalodimas , Tom Rini , Casey Connolly , Neil Armstrong , Mark Kettenis , Weijie Gao , Heinrich Schuchardt , Simon Glass , Sughosh Ganu Subject: [PATCH v2 2/5] lmb: replace the lmb_alloc() and lmb_alloc_base() API's Date: Tue, 20 May 2025 17:36:03 +0530 Message-Id: <20250520120606.173228-3-sughosh.ganu@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250520120606.173228-1-sughosh.ganu@linaro.org> References: <20250520120606.173228-1-sughosh.ganu@linaro.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean There currently are two API's for requesting memory from the LMB module, lmb_alloc() and lmb_alloc_base(). The function which does the actual allocation is the same. Use the earlier introduced API lmb_allocate_mem() for both types of allocation requests. Signed-off-by: Sughosh Ganu --- Changes since V1: * Check the return value of the lmb API in some of the common, non-arch code that got missed out in the earlier version. Done where applicable. * Declare a local variable of type phys_addr_t and use that while calling the API, instead of casting the parameter to a void *. Done where applicable. * Optimize the use of the lmb API in boot_ramdisk_high(). * s/desired_addr/high_addr in boot_relocate_fdt(). * Fallthrough the LMB_MEM_ALLOC_ANY case in lmb_allocate_mem() as suggested by Ilias. arch/arm/mach-apple/board.c | 27 ++++++++++++++----- arch/arm/mach-snapdragon/board.c | 13 ++++++++- boot/bootm.c | 12 ++++++--- boot/image-board.c | 45 +++++++++++++++++--------------- boot/image-fdt.c | 35 ++++++++++++++----------- include/lmb.h | 22 +++------------- lib/efi_loader/efi_memory.c | 14 +++++----- lib/lmb.c | 28 +++++++++----------- test/lib/lmb.c | 26 ++++++++++++++++++ 9 files changed, 134 insertions(+), 88 deletions(-) diff --git a/arch/arm/mach-apple/board.c b/arch/arm/mach-apple/board.c index 2644a04a622..f0eab5df1ef 100644 --- a/arch/arm/mach-apple/board.c +++ b/arch/arm/mach-apple/board.c @@ -772,6 +772,19 @@ u64 get_page_table_size(void) #define KERNEL_COMP_SIZE SZ_128M +static phys_addr_t lmb_alloc(phys_size_t size) +{ + int ret; + phys_addr_t addr; + + /* All memory regions allocated with a 2MiB alignment */ + ret = lmb_allocate_mem(LMB_MEM_ALLOC_ANY, SZ_2M, &addr, size, LMB_NONE); + if (ret) + return 0; + + return addr; +} + int board_late_init(void) { u32 status = 0; @@ -779,15 +792,15 @@ int board_late_init(void) /* somewhat based on the Linux Kernel boot requirements: * align by 2M and maximal FDT size 2M */ - status |= env_set_hex("loadaddr", lmb_alloc(SZ_1G, SZ_2M)); - status |= env_set_hex("fdt_addr_r", lmb_alloc(SZ_2M, SZ_2M)); - status |= env_set_hex("kernel_addr_r", lmb_alloc(SZ_128M, SZ_2M)); - status |= env_set_hex("ramdisk_addr_r", lmb_alloc(SZ_1G, SZ_2M)); + status |= env_set_hex("loadaddr", lmb_alloc(SZ_1G)); + status |= env_set_hex("fdt_addr_r", lmb_alloc(SZ_2M)); + status |= env_set_hex("kernel_addr_r", lmb_alloc(SZ_128M)); + status |= env_set_hex("ramdisk_addr_r", lmb_alloc(SZ_1G)); status |= env_set_hex("kernel_comp_addr_r", - lmb_alloc(KERNEL_COMP_SIZE, SZ_2M)); + lmb_alloc(KERNEL_COMP_SIZE)); status |= env_set_hex("kernel_comp_size", KERNEL_COMP_SIZE); - status |= env_set_hex("scriptaddr", lmb_alloc(SZ_4M, SZ_2M)); - status |= env_set_hex("pxefile_addr_r", lmb_alloc(SZ_4M, SZ_2M)); + status |= env_set_hex("scriptaddr", lmb_alloc(SZ_4M)); + status |= env_set_hex("pxefile_addr_r", lmb_alloc(SZ_4M)); if (status) log_warning("late_init: Failed to set run time variables\n"); diff --git a/arch/arm/mach-snapdragon/board.c b/arch/arm/mach-snapdragon/board.c index 3ab75f0fce0..141879c4104 100644 --- a/arch/arm/mach-snapdragon/board.c +++ b/arch/arm/mach-snapdragon/board.c @@ -483,7 +483,18 @@ void __weak qcom_late_init(void) #define FASTBOOT_BUF_SIZE 0 #endif -#define addr_alloc(size) lmb_alloc(size, SZ_2M) +static phys_addr_t addr_alloc(phys_size_t size) +{ + int ret; + phys_addr_t addr; + + /* All memory regions allocated with a 2MiB alignment */ + ret = lmb_allocate_mem(LMB_MEM_ALLOC_ANY, SZ_2M, &addr, size, LMB_NONE); + if (ret) + return 0; + + return addr; +} /* Stolen from arch/arm/mach-apple/board.c */ int board_late_init(void) diff --git a/boot/bootm.c b/boot/bootm.c index c23b91c89d0..d77730ca431 100644 --- a/boot/bootm.c +++ b/boot/bootm.c @@ -623,12 +623,16 @@ static int bootm_load_os(struct bootm_headers *images, int boot_progress) */ if (os.type == IH_TYPE_KERNEL_NOLOAD && os.comp != IH_COMP_NONE) { ulong req_size = ALIGN(image_len * 4, SZ_1M); + phys_addr_t addr; - load = lmb_alloc(req_size, SZ_2M); - if (!load) + err = lmb_allocate_mem(LMB_MEM_ALLOC_ANY, SZ_2M, &addr, + req_size, LMB_NONE); + if (err) return 1; - os.load = load; - images->ep = load; + + load = (ulong)addr; + os.load = (ulong)addr; + images->ep = (ulong)addr; debug("Allocated %lx bytes at %lx for kernel (size %lx) decompression\n", req_size, load, image_len); } diff --git a/boot/image-board.c b/boot/image-board.c index 8933c8d9924..26cf9f88656 100644 --- a/boot/image-board.c +++ b/boot/image-board.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -573,20 +574,17 @@ int boot_ramdisk_high(ulong rd_data, ulong rd_len, ulong *initrd_start, goto error; } } else { - if (initrd_high) - *initrd_start = - (ulong)lmb_alloc_base(rd_len, - 0x1000, - initrd_high, - LMB_NONE); - else - *initrd_start = (ulong)lmb_alloc(rd_len, - 0x1000); + enum lmb_mem_type type = initrd_high ? + LMB_MEM_ALLOC_MAX : LMB_MEM_ALLOC_ANY; - if (*initrd_start == 0) { + err = lmb_allocate_mem(type, 0x1000, &initrd_high, + rd_len, LMB_NONE); + if (err) { puts("ramdisk - allocation error\n"); goto error; } + + *initrd_start = (ulong)initrd_high; bootstage_mark(BOOTSTAGE_ID_COPY_RAMDISK); *initrd_end = *initrd_start + rd_len; @@ -837,9 +835,10 @@ int boot_get_loadable(struct bootm_headers *images) */ int boot_get_cmdline(ulong *cmd_start, ulong *cmd_end) { - int barg; + int barg, err; char *cmdline; char *s; + phys_addr_t addr; /* * Help the compiler detect that this function is only called when @@ -849,12 +848,14 @@ int boot_get_cmdline(ulong *cmd_start, ulong *cmd_end) return 0; barg = IF_ENABLED_INT(CONFIG_SYS_BOOT_GET_CMDLINE, CONFIG_SYS_BARGSIZE); - cmdline = (char *)(ulong)lmb_alloc_base(barg, 0xf, - env_get_bootm_mapsize() + env_get_bootm_low(), - LMB_NONE); - if (!cmdline) + addr = env_get_bootm_mapsize() + env_get_bootm_low(); + + err = lmb_allocate_mem(LMB_MEM_ALLOC_MAX, 0xf, &addr, barg, LMB_NONE); + if (err) return -1; + cmdline = (char *)(uintptr_t)addr; + s = env_get("bootargs"); if (!s) s = ""; @@ -883,14 +884,16 @@ int boot_get_cmdline(ulong *cmd_start, ulong *cmd_end) */ int boot_get_kbd(struct bd_info **kbd) { - *kbd = (struct bd_info *)(ulong)lmb_alloc_base(sizeof(struct bd_info), - 0xf, - env_get_bootm_mapsize() + - env_get_bootm_low(), - LMB_NONE); - if (!*kbd) + int err; + phys_addr_t addr; + + addr = env_get_bootm_mapsize() + env_get_bootm_low(); + err = lmb_allocate_mem(LMB_MEM_ALLOC_MAX, 0xf, &addr, + sizeof(struct bd_info), LMB_NONE); + if (err) return -1; + *kbd = (struct bd_info *)(uintptr_t)addr; **kbd = *gd->bd; debug("## kernel board info at 0x%08lx\n", (ulong)*kbd); diff --git a/boot/image-fdt.c b/boot/image-fdt.c index fef0229eb10..ff27a31ae2e 100644 --- a/boot/image-fdt.c +++ b/boot/image-fdt.c @@ -184,9 +184,9 @@ int boot_relocate_fdt(char **of_flat_tree, ulong *of_size) /* If fdt_high is set use it to select the relocation address */ fdt_high = env_get("fdt_high"); if (fdt_high) { - ulong desired_addr = hextoul(fdt_high, NULL); + ulong high_addr = hextoul(fdt_high, NULL); - if (desired_addr == ~0UL) { + if (high_addr == ~0UL) { /* All ones means use fdt in place */ of_start = fdt_blob; addr = map_to_sysmem(fdt_blob); @@ -199,16 +199,17 @@ int boot_relocate_fdt(char **of_flat_tree, ulong *of_size) } disable_relocation = 1; - } else if (desired_addr) { - addr = lmb_alloc_base(of_len, 0x1000, desired_addr, - LMB_NONE); - of_start = map_sysmem(addr, of_len); - if (of_start == NULL) { - puts("Failed using fdt_high value for Device Tree"); + } else { + enum lmb_mem_type type = high_addr ? + LMB_MEM_ALLOC_MAX : LMB_MEM_ALLOC_ANY; + + addr = high_addr; + err = lmb_allocate_mem(type, 0x1000, &addr, of_len, + LMB_NONE); + if (err) { + puts("Failed to allocate memory for Device Tree relocation\n"); goto error; } - } else { - addr = lmb_alloc(of_len, 0x1000); of_start = map_sysmem(addr, of_len); } } else { @@ -230,11 +231,15 @@ int boot_relocate_fdt(char **of_flat_tree, ulong *of_size) * for LMB allocation. */ usable = min(start + size, low + mapsize); - addr = lmb_alloc_base(of_len, 0x1000, usable, LMB_NONE); - of_start = map_sysmem(addr, of_len); - /* Allocation succeeded, use this block. */ - if (of_start != NULL) - break; + addr = usable; + err = lmb_allocate_mem(LMB_MEM_ALLOC_MAX, 0x1000, + &addr, of_len, LMB_NONE); + if (!err) { + of_start = map_sysmem(addr, of_len); + /* Allocation succeeded, use this block. */ + if (of_start) + break; + } /* * Reduce the mapping size in the next bank diff --git a/include/lmb.h b/include/lmb.h index 5b9a63210b0..82f5097173f 100644 --- a/include/lmb.h +++ b/include/lmb.h @@ -34,9 +34,13 @@ /** * enum lmb_mem_type - type of memory allocation request * @LMB_MEM_ALLOC_ADDR: request for a particular region of memory + * @LMB_MEM_ALLOC_ANY: allocate any available memory region + * @LMB_MEM_ALLOC_MAX: allocate memory below a particular address */ enum lmb_mem_type { LMB_MEM_ALLOC_ADDR = 1, + LMB_MEM_ALLOC_ANY, + LMB_MEM_ALLOC_MAX, }; /** @@ -130,26 +134,8 @@ void lmb_add_memory(void); long lmb_add(phys_addr_t base, phys_size_t size); -phys_addr_t lmb_alloc(phys_size_t size, ulong align); phys_size_t lmb_get_free_size(phys_addr_t addr); -/** - * lmb_alloc_base() - Allocate specified memory region with specified - * attributes - * @size: Size of the region requested - * @align: Alignment of the memory region requested - * @max_addr: Maximum address of the requested region - * @flags: Memory region attributes to be set - * - * Allocate a region of memory with the attributes specified through the - * parameter. The max_addr parameter is used to specify the maximum address - * below which the requested region should be allocated. - * - * Return: Base address on success, 0 on error. - */ -phys_addr_t lmb_alloc_base(phys_size_t size, ulong align, phys_addr_t max_addr, - uint flags); - /** * lmb_is_reserved_flags() - Test if address is in reserved region with flag * bits set diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 12a7fd1f3bf..73e1eef5011 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -454,6 +454,7 @@ efi_status_t efi_allocate_pages(enum efi_allocate_type type, enum efi_memory_type memory_type, efi_uintn_t pages, uint64_t *memory) { + int err; u64 efi_addr, len; uint flags; efi_status_t ret; @@ -475,17 +476,18 @@ efi_status_t efi_allocate_pages(enum efi_allocate_type type, switch (type) { case EFI_ALLOCATE_ANY_PAGES: /* Any page */ - addr = (u64)lmb_alloc_base(len, EFI_PAGE_SIZE, - LMB_ALLOC_ANYWHERE, flags); - if (!addr) + err = lmb_allocate_mem(LMB_MEM_ALLOC_ANY, EFI_PAGE_SIZE, + &addr, len, flags); + if (err) return EFI_OUT_OF_RESOURCES; break; case EFI_ALLOCATE_MAX_ADDRESS: /* Max address */ addr = map_to_sysmem((void *)(uintptr_t)*memory); - addr = (u64)lmb_alloc_base(len, EFI_PAGE_SIZE, addr, - flags); - if (!addr) + + err = lmb_allocate_mem(LMB_MEM_ALLOC_MAX, EFI_PAGE_SIZE, + &addr, len, flags); + if (err) return EFI_OUT_OF_RESOURCES; break; case EFI_ALLOCATE_ADDRESS: diff --git a/lib/lmb.c b/lib/lmb.c index c536465a501..e3ec389d026 100644 --- a/lib/lmb.c +++ b/lib/lmb.c @@ -672,16 +672,18 @@ long lmb_free(phys_addr_t base, phys_size_t size) return lmb_free_flags(base, size, LMB_NONE); } -static phys_addr_t _lmb_alloc_base(phys_size_t size, ulong align, - phys_addr_t max_addr, u32 flags) +static int _lmb_alloc_base(phys_size_t size, ulong align, + phys_addr_t *addr, u32 flags) { int ret; long i, rgn; + phys_addr_t max_addr; phys_addr_t base = 0; phys_addr_t res_base; struct lmb_region *lmb_used = lmb.used_mem.data; struct lmb_region *lmb_memory = lmb.available_mem.data; + max_addr = *addr; for (i = lmb.available_mem.count - 1; i >= 0; i--) { phys_addr_t lmbbase = lmb_memory[i].base; phys_size_t lmbsize = lmb_memory[i].size; @@ -714,8 +716,8 @@ static phys_addr_t _lmb_alloc_base(phys_size_t size, ulong align, flags); if (ret) return ret; - - return base; + *addr = base; + return 0; } res_base = lmb_used[rgn].base; @@ -728,18 +730,7 @@ static phys_addr_t _lmb_alloc_base(phys_size_t size, ulong align, log_debug("%s: Failed to allocate 0x%lx bytes below 0x%lx\n", __func__, (ulong)size, (ulong)max_addr); - return 0; -} - -phys_addr_t lmb_alloc(phys_size_t size, ulong align) -{ - return _lmb_alloc_base(size, align, LMB_ALLOC_ANYWHERE, LMB_NONE); -} - -phys_addr_t lmb_alloc_base(phys_size_t size, ulong align, phys_addr_t max_addr, - uint flags) -{ - return _lmb_alloc_base(size, align, max_addr, flags); + return -1; } static int _lmb_alloc_addr(phys_addr_t base, phys_size_t size, u32 flags) @@ -778,6 +769,11 @@ int lmb_allocate_mem(enum lmb_mem_type type, u64 align, phys_addr_t *addr, return -EINVAL; switch (type) { + case LMB_MEM_ALLOC_ANY: + *addr = LMB_ALLOC_ANYWHERE; + case LMB_MEM_ALLOC_MAX: + ret = _lmb_alloc_base(size, align, addr, flags); + break; case LMB_MEM_ALLOC_ADDR: ret = _lmb_alloc_addr(*addr, size, flags); break; diff --git a/test/lib/lmb.c b/test/lib/lmb.c index f80115570e7..8ce19efc854 100644 --- a/test/lib/lmb.c +++ b/test/lib/lmb.c @@ -82,6 +82,32 @@ static int lmb_reserve(phys_addr_t addr, phys_size_t size, u32 flags) return 0; } +static phys_addr_t lmb_alloc(phys_size_t size, ulong align) +{ + int err; + phys_addr_t addr; + + err = lmb_allocate_mem(LMB_MEM_ALLOC_ANY, align, &addr, size, LMB_NONE); + if (err) + return 0; + + return addr; +} + +static phys_addr_t lmb_alloc_base(phys_size_t size, ulong align, + phys_addr_t max_addr, u32 flags) +{ + int err; + phys_addr_t addr; + + addr = max_addr; + err = lmb_allocate_mem(LMB_MEM_ALLOC_MAX, align, &addr, size, flags); + if (err) + return 0; + + return addr; +} + #define lmb_alloc_addr(addr, size, flags) lmb_reserve(addr, size, flags) static int test_multi_alloc(struct unit_test_state *uts, const phys_addr_t ram,