[PATCH v1 08/10] mips: octeon: Add bootmem support
Stefan Roese
sr at denx.de
Thu Aug 20 07:22:02 CEST 2020
From: Aaron Williams <awilliams at marvell.com>
This is needed for Linux booting, as the memory infos need to be passed
in this bootmem format to the Linux kernel.
Signed-off-by: Aaron Williams <awilliams at marvell.com>
Signed-off-by: Stefan Roese <sr at denx.de>
---
arch/mips/mach-octeon/Makefile | 1 +
arch/mips/mach-octeon/cvmx-bootmem.c | 1460 +++++++++++++++++
.../mach-octeon/include/mach/cvmx-bootmem.h | 533 ++++++
3 files changed, 1994 insertions(+)
create mode 100644 arch/mips/mach-octeon/cvmx-bootmem.c
create mode 100644 arch/mips/mach-octeon/include/mach/cvmx-bootmem.h
diff --git a/arch/mips/mach-octeon/Makefile b/arch/mips/mach-octeon/Makefile
index 5155f89a1e..e96f0deb1b 100644
--- a/arch/mips/mach-octeon/Makefile
+++ b/arch/mips/mach-octeon/Makefile
@@ -9,3 +9,4 @@ obj-y += clock.o
obj-y += cpu.o
obj-y += dram.o
obj-y += cvmx-coremask.o
+obj-y += cvmx-bootmem.o
diff --git a/arch/mips/mach-octeon/cvmx-bootmem.c b/arch/mips/mach-octeon/cvmx-bootmem.c
new file mode 100644
index 0000000000..80bb7ac6c8
--- /dev/null
+++ b/arch/mips/mach-octeon/cvmx-bootmem.c
@@ -0,0 +1,1460 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2020 Marvell International Ltd.
+ */
+
+/*
+ * Simple allocate only memory allocator. Used to allocate memory at
+ * application start time.
+ */
+
+#include <asm/global_data.h>
+
+#include <linux/compat.h>
+#include <linux/io.h>
+#include <linux/types.h>
+
+#include <mach/octeon-model.h>
+#include <mach/cvmx-bootmem.h>
+#include <mach/cvmx-coremask.h>
+#include <mach/cvmx-regs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define CVMX_MIPS32_SPACE_KSEG0 1L
+#define CVMX_MIPS_SPACE_XKPHYS 2LL
+
+#define CVMX_ADD_SEG(seg, add) ((((u64)(seg)) << 62) | (add))
+#define CVMX_ADD_SEG32(seg, add) (((u32)(seg) << 31) | (u32)(add))
+
+/**
+ * This is the physical location of a struct cvmx_bootmem_desc
+ * structure in Octeon's memory. Note that dues to addressing
+ * limits or runtime environment it might not be possible to
+ * create a C pointer to this structure.
+ */
+static u64 cvmx_bootmem_desc_addr;
+
+/**
+ * This macro returns the size of a member of a structure.
+ * Logically it is the same as "sizeof(s::field)" in C++, but
+ * C lacks the "::" operator.
+ */
+#define SIZEOF_FIELD(s, field) sizeof(((s *)NULL)->field)
+
+/**
+ * This macro returns a member of the struct cvmx_bootmem_desc
+ * structure. These members can't be directly addressed as
+ * they might be in memory not directly reachable. In the case
+ * where bootmem is compiled with LINUX_HOST, the structure
+ * itself might be located on a remote Octeon. The argument
+ * "field" is the member name of the struct cvmx_bootmem_desc to read.
+ * Regardless of the type of the field, the return type is always
+ * a u64.
+ */
+#define CVMX_BOOTMEM_DESC_GET_FIELD(field) \
+ __cvmx_bootmem_desc_get(cvmx_bootmem_desc_addr, \
+ offsetof(struct cvmx_bootmem_desc, field), \
+ SIZEOF_FIELD(struct cvmx_bootmem_desc, field))
+
+/**
+ * This macro writes a member of the struct cvmx_bootmem_desc
+ * structure. These members can't be directly addressed as
+ * they might be in memory not directly reachable. In the case
+ * where bootmem is compiled with LINUX_HOST, the structure
+ * itself might be located on a remote Octeon. The argument
+ * "field" is the member name of the struct cvmx_bootmem_desc to write.
+ */
+#define CVMX_BOOTMEM_DESC_SET_FIELD(field, value) \
+ __cvmx_bootmem_desc_set(cvmx_bootmem_desc_addr, \
+ offsetof(struct cvmx_bootmem_desc, field), \
+ SIZEOF_FIELD(struct cvmx_bootmem_desc, field), \
+ value)
+
+/**
+ * This macro returns a member of the
+ * struct cvmx_bootmem_named_block_desc structure. These members can't
+ * be directly addressed as they might be in memory not directly
+ * reachable. In the case where bootmem is compiled with
+ * LINUX_HOST, the structure itself might be located on a remote
+ * Octeon. The argument "field" is the member name of the
+ * struct cvmx_bootmem_named_block_desc to read. Regardless of the type
+ * of the field, the return type is always a u64. The "addr"
+ * parameter is the physical address of the structure.
+ */
+#define CVMX_BOOTMEM_NAMED_GET_FIELD(addr, field) \
+ __cvmx_bootmem_desc_get(addr, \
+ offsetof(struct cvmx_bootmem_named_block_desc, field), \
+ SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field))
+
+/**
+ * This macro writes a member of the struct cvmx_bootmem_named_block_desc
+ * structure. These members can't be directly addressed as
+ * they might be in memory not directly reachable. In the case
+ * where bootmem is compiled with LINUX_HOST, the structure
+ * itself might be located on a remote Octeon. The argument
+ * "field" is the member name of the
+ * struct cvmx_bootmem_named_block_desc to write. The "addr" parameter
+ * is the physical address of the structure.
+ */
+#define CVMX_BOOTMEM_NAMED_SET_FIELD(addr, field, value) \
+ __cvmx_bootmem_desc_set(addr, \
+ offsetof(struct cvmx_bootmem_named_block_desc, field), \
+ SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field), \
+ value)
+
+/**
+ * This function is the implementation of the get macros defined
+ * for individual structure members. The argument are generated
+ * by the macros inorder to read only the needed memory.
+ *
+ * @param base 64bit physical address of the complete structure
+ * @param offset Offset from the beginning of the structure to the member being
+ * accessed.
+ * @param size Size of the structure member.
+ *
+ * @return Value of the structure member promoted into a u64.
+ */
+static inline u64 __cvmx_bootmem_desc_get(u64 base, int offset,
+ int size)
+{
+ base = (1ull << 63) | (base + offset);
+ switch (size) {
+ case 4:
+ return cvmx_read64_uint32(base);
+ case 8:
+ return cvmx_read64_uint64(base);
+ default:
+ return 0;
+ }
+}
+
+/**
+ * This function is the implementation of the set macros defined
+ * for individual structure members. The argument are generated
+ * by the macros in order to write only the needed memory.
+ *
+ * @param base 64bit physical address of the complete structure
+ * @param offset Offset from the beginning of the structure to the member being
+ * accessed.
+ * @param size Size of the structure member.
+ * @param value Value to write into the structure
+ */
+static inline void __cvmx_bootmem_desc_set(u64 base, int offset, int size,
+ u64 value)
+{
+ base = (1ull << 63) | (base + offset);
+ switch (size) {
+ case 4:
+ cvmx_write64_uint32(base, value);
+ break;
+ case 8:
+ cvmx_write64_uint64(base, value);
+ break;
+ default:
+ break;
+ }
+}
+
+/**
+ * This function returns the address of the bootmem descriptor lock.
+ *
+ * @return 64-bit address in KSEG0 of the bootmem descriptor block
+ */
+static inline u64 __cvmx_bootmem_get_lock_addr(void)
+{
+ return (1ull << 63) |
+ (cvmx_bootmem_desc_addr + offsetof(struct cvmx_bootmem_desc, lock));
+}
+
+/**
+ * This function retrieves the string name of a named block. It is
+ * more complicated than a simple memcpy() since the named block
+ * descriptor may not be directly accessible.
+ *
+ * @param addr Physical address of the named block descriptor
+ * @param str String to receive the named block string name
+ * @param len Length of the string buffer, which must match the length
+ * stored in the bootmem descriptor.
+ */
+static void CVMX_BOOTMEM_NAMED_GET_NAME(u64 addr, char *str, int len)
+{
+ int l = len;
+ char *ptr = str;
+
+ addr |= (1ull << 63);
+ addr += offsetof(struct cvmx_bootmem_named_block_desc, name);
+ while (l) {
+ /*
+ * With big-endian in memory byte order, this gives uniform
+ * results for the CPU in either big or Little endian mode.
+ */
+ u64 blob = cvmx_read64_uint64(addr);
+ int sa = 56;
+
+ addr += sizeof(u64);
+ while (l && sa >= 0) {
+ *ptr++ = (char)(blob >> sa);
+ l--;
+ sa -= 8;
+ }
+ }
+ str[len] = 0;
+}
+
+/**
+ * This function stores the string name of a named block. It is
+ * more complicated than a simple memcpy() since the named block
+ * descriptor may not be directly accessible.
+ *
+ * @param addr Physical address of the named block descriptor
+ * @param str String to store into the named block string name
+ * @param len Length of the string buffer, which must match the length
+ * stored in the bootmem descriptor.
+ */
+void CVMX_BOOTMEM_NAMED_SET_NAME(u64 addr, const char *str, int len)
+{
+ int l = len;
+
+ addr |= (1ull << 63);
+ addr += offsetof(struct cvmx_bootmem_named_block_desc, name);
+
+ while (l) {
+ /*
+ * With big-endian in memory byte order, this gives uniform
+ * results for the CPU in either big or Little endian mode.
+ */
+ u64 blob = 0;
+ int sa = 56;
+
+ while (l && sa >= 0) {
+ u64 c = (u8)(*str++);
+
+ l--;
+ if (l == 0)
+ c = 0;
+ blob |= c << sa;
+ sa -= 8;
+ }
+ cvmx_write64_uint64(addr, blob);
+ addr += sizeof(u64);
+ }
+}
+
+/* See header file for descriptions of functions */
+
+/*
+ * Wrapper functions are provided for reading/writing the size and next block
+ * values as these may not be directly addressible (in 32 bit applications, for
+ * instance.)
+ *
+ * Offsets of data elements in bootmem list, must match
+ * struct cvmx_bootmem_block_header
+ */
+#define NEXT_OFFSET 0
+#define SIZE_OFFSET 8
+
+static void cvmx_bootmem_phy_set_size(u64 addr, u64 size)
+{
+ cvmx_write64_uint64((addr + SIZE_OFFSET) | (1ull << 63), size);
+}
+
+static void cvmx_bootmem_phy_set_next(u64 addr, u64 next)
+{
+ cvmx_write64_uint64((addr + NEXT_OFFSET) | (1ull << 63), next);
+}
+
+static u64 cvmx_bootmem_phy_get_size(u64 addr)
+{
+ return cvmx_read64_uint64((addr + SIZE_OFFSET) | (1ull << 63));
+}
+
+static u64 cvmx_bootmem_phy_get_next(u64 addr)
+{
+ return cvmx_read64_uint64((addr + NEXT_OFFSET) | (1ull << 63));
+}
+
+/**
+ * Check the version information on the bootmem descriptor
+ *
+ * @param exact_match
+ * Exact major version to check against. A zero means
+ * check that the version supports named blocks.
+ *
+ * @return Zero if the version is correct. Negative if the version is
+ * incorrect. Failures also cause a message to be displayed.
+ */
+static int __cvmx_bootmem_check_version(int exact_match)
+{
+ int major_version;
+
+ major_version = CVMX_BOOTMEM_DESC_GET_FIELD(major_version);
+ if (major_version > 3 ||
+ (exact_match && major_version) != exact_match) {
+ debug("ERROR: Incompatible bootmem descriptor version: %d.%d at addr: 0x%llx\n",
+ major_version,
+ (int)CVMX_BOOTMEM_DESC_GET_FIELD(minor_version),
+ CAST_ULL(cvmx_bootmem_desc_addr));
+ return -1;
+ } else {
+ return 0;
+ }
+}
+
+/**
+ * Get the low level bootmem descriptor lock. If no locking
+ * is specified in the flags, then nothing is done.
+ *
+ * @param flags CVMX_BOOTMEM_FLAG_NO_LOCKING means this functions should do
+ * nothing. This is used to support nested bootmem calls.
+ */
+static inline void __cvmx_bootmem_lock(u32 flags)
+{
+ if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING)) {
+ /*
+ * Unfortunately we can't use the normal cvmx-spinlock code as
+ * the memory for the bootmem descriptor may be not accessible
+ * by a C pointer. We use a 64bit XKPHYS address to access the
+ * memory directly
+ */
+ u64 lock_addr = (1ull << 63) |
+ (cvmx_bootmem_desc_addr + offsetof(struct cvmx_bootmem_desc,
+ lock));
+ unsigned int tmp;
+
+ __asm__ __volatile__(".set noreorder\n"
+ "1: ll %[tmp], 0(%[addr])\n"
+ " bnez %[tmp], 1b\n"
+ " li %[tmp], 1\n"
+ " sc %[tmp], 0(%[addr])\n"
+ " beqz %[tmp], 1b\n"
+ " nop\n"
+ ".set reorder\n"
+ : [tmp] "=&r"(tmp)
+ : [addr] "r"(lock_addr)
+ : "memory");
+ }
+}
+
+/**
+ * Release the low level bootmem descriptor lock. If no locking
+ * is specified in the flags, then nothing is done.
+ *
+ * @param flags CVMX_BOOTMEM_FLAG_NO_LOCKING means this functions should do
+ * nothing. This is used to support nested bootmem calls.
+ */
+static inline void __cvmx_bootmem_unlock(u32 flags)
+{
+ if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING)) {
+ /*
+ * Unfortunately we can't use the normal cvmx-spinlock code as
+ * the memory for the bootmem descriptor may be not accessible
+ * by a C pointer. We use a 64bit XKPHYS address to access the
+ * memory directly
+ */
+ u64 lock_addr = __cvmx_bootmem_get_lock_addr();
+
+ CVMX_SYNCW;
+ __asm__ __volatile__("sw $0, 0(%[addr])\n"
+ : : [addr] "r"(lock_addr)
+ : "memory");
+ CVMX_SYNCW;
+ }
+}
+
+/*
+ * Some of the cvmx-bootmem functions dealing with C pointers are not
+ * supported when we are compiling for CVMX_BUILD_FOR_LINUX_HOST. This
+ * ifndef removes these functions when they aren't needed.
+ *
+ * This functions takes an address range and adjusts it as necessary
+ * to match the ABI that is currently being used. This is required to
+ * ensure that bootmem_alloc* functions only return valid pointers for
+ * 32 bit ABIs
+ */
+static int __cvmx_validate_mem_range(u64 *min_addr_ptr,
+ u64 *max_addr_ptr)
+{
+ u64 max_phys = (1ull << 29) - 0x10; /* KSEG0 */
+
+ *min_addr_ptr = min_t(u64, max_t(u64, *min_addr_ptr, 0x0), max_phys);
+ if (!*max_addr_ptr) {
+ *max_addr_ptr = max_phys;
+ } else {
+ *max_addr_ptr = max_t(u64, min_t(u64, *max_addr_ptr,
+ max_phys), 0x0);
+ }
+
+ return 0;
+}
+
+u64 cvmx_bootmem_phy_alloc_range(u64 size, u64 alignment,
+ u64 min_addr, u64 max_addr)
+{
+ s64 address;
+
+ __cvmx_validate_mem_range(&min_addr, &max_addr);
+ address = cvmx_bootmem_phy_alloc(size, min_addr, max_addr,
+ alignment, 0);
+ if (address > 0)
+ return address;
+ else
+ return 0;
+}
+
+void *cvmx_bootmem_alloc_range(u64 size, u64 alignment,
+ u64 min_addr, u64 max_addr)
+{
+ s64 address;
+
+ __cvmx_validate_mem_range(&min_addr, &max_addr);
+ address = cvmx_bootmem_phy_alloc(size, min_addr, max_addr,
+ alignment, 0);
+
+ if (address > 0)
+ return cvmx_phys_to_ptr(address);
+ else
+ return NULL;
+}
+
+void *cvmx_bootmem_alloc_address(u64 size, u64 address,
+ u64 alignment)
+{
+ return cvmx_bootmem_alloc_range(size, alignment, address,
+ address + size);
+}
+
+void *cvmx_bootmem_alloc_node(u64 node, u64 size, u64 alignment)
+{
+ return cvmx_bootmem_alloc_range(size, alignment,
+ node << CVMX_NODE_MEM_SHIFT,
+ ((node + 1) << CVMX_NODE_MEM_SHIFT) - 1);
+}
+
+void *cvmx_bootmem_alloc(u64 size, u64 alignment)
+{
+ return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
+}
+
+void *cvmx_bootmem_alloc_named_range_once(u64 size, u64 min_addr,
+ u64 max_addr, u64 align,
+ const char *name,
+ void (*init)(void *))
+{
+ u64 named_block_desc_addr;
+ void *ptr;
+ s64 addr;
+
+ __cvmx_bootmem_lock(0);
+
+ __cvmx_validate_mem_range(&min_addr, &max_addr);
+ named_block_desc_addr =
+ cvmx_bootmem_phy_named_block_find(name,
+ CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+ if (named_block_desc_addr) {
+ addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_desc_addr,
+ base_addr);
+ __cvmx_bootmem_unlock(0);
+ return cvmx_phys_to_ptr(addr);
+ }
+
+ addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
+ align, name,
+ CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+ if (addr < 0) {
+ __cvmx_bootmem_unlock(0);
+ return NULL;
+ }
+ ptr = cvmx_phys_to_ptr(addr);
+
+ if (init)
+ init(ptr);
+ else
+ memset(ptr, 0, size);
+
+ __cvmx_bootmem_unlock(0);
+ return ptr;
+}
+
+void *cvmx_bootmem_alloc_named_range_flags(u64 size, u64 min_addr,
+ u64 max_addr, u64 align,
+ const char *name, u32 flags)
+{
+ s64 addr;
+
+ __cvmx_validate_mem_range(&min_addr, &max_addr);
+ addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
+ align, name, flags);
+ if (addr >= 0)
+ return cvmx_phys_to_ptr(addr);
+ else
+ return NULL;
+}
+
+void *cvmx_bootmem_alloc_named_range(u64 size, u64 min_addr,
+ u64 max_addr, u64 align,
+ const char *name)
+{
+ return cvmx_bootmem_alloc_named_range_flags(size, min_addr, max_addr,
+ align, name, 0);
+}
+
+void *cvmx_bootmem_alloc_named_address(u64 size, u64 address,
+ const char *name)
+{
+ return cvmx_bootmem_alloc_named_range(size, address, address + size,
+ 0, name);
+}
+
+void *cvmx_bootmem_alloc_named(u64 size, u64 alignment,
+ const char *name)
+{
+ return cvmx_bootmem_alloc_named_range(size, 0, 0, alignment, name);
+}
+
+void *cvmx_bootmem_alloc_named_flags(u64 size, u64 alignment,
+ const char *name, u32 flags)
+{
+ return cvmx_bootmem_alloc_named_range_flags(size, 0, 0, alignment,
+ name, flags);
+}
+
+int cvmx_bootmem_free_named(const char *name)
+{
+ return cvmx_bootmem_phy_named_block_free(name, 0);
+}
+
+/**
+ * Find a named block with flags
+ *
+ * @param name is the block name
+ * @param flags indicates the need to use locking during search
+ * @return pointer to named block descriptor
+ *
+ * Note: this function returns a pointer to a static structure,
+ * and is therefore not re-entrant.
+ * Making this function re-entrant will break backward compatibility.
+ */
+const struct cvmx_bootmem_named_block_desc *
+__cvmx_bootmem_find_named_block_flags(const char *name, u32 flags)
+{
+ static struct cvmx_bootmem_named_block_desc desc;
+ u64 named_addr = cvmx_bootmem_phy_named_block_find(name, flags);
+
+ if (named_addr) {
+ desc.base_addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_addr,
+ base_addr);
+ desc.size = CVMX_BOOTMEM_NAMED_GET_FIELD(named_addr, size);
+ strncpy(desc.name, name, sizeof(desc.name));
+ desc.name[sizeof(desc.name) - 1] = 0;
+ return &desc;
+ } else {
+ return NULL;
+ }
+}
+
+const struct cvmx_bootmem_named_block_desc *
+cvmx_bootmem_find_named_block(const char *name)
+{
+ return __cvmx_bootmem_find_named_block_flags(name, 0);
+}
+
+void cvmx_bootmem_print_named(void)
+{
+ cvmx_bootmem_phy_named_block_print();
+}
+
+int cvmx_bootmem_init(u64 mem_desc_addr)
+{
+ if (!cvmx_bootmem_desc_addr)
+ cvmx_bootmem_desc_addr = mem_desc_addr;
+
+ return 0;
+}
+
+u64 cvmx_bootmem_available_mem(u64 min_block_size)
+{
+ return cvmx_bootmem_phy_available_mem(min_block_size);
+}
+
+/*
+ * The cvmx_bootmem_phy* functions below return 64 bit physical
+ * addresses, and expose more features that the cvmx_bootmem_functions
+ * above. These are required for full memory space access in 32 bit
+ * applications, as well as for using some advance features. Most
+ * applications should not need to use these.
+ */
+
+s64 cvmx_bootmem_phy_alloc(u64 req_size, u64 address_min,
+ u64 address_max, u64 alignment,
+ u32 flags)
+{
+ u64 head_addr, ent_addr, ent_size;
+ u64 target_ent_addr = 0, target_prev_addr = 0;
+ u64 target_size = ~0ull;
+ u64 free_start, free_end;
+ u64 next_addr, prev_addr = 0;
+ u64 new_ent_addr = 0, new_ent_size;
+ u64 desired_min_addr, usable_max;
+ u64 align, align_mask;
+
+ debug("%s: req_size: 0x%llx, min_addr: 0x%llx, max_addr: 0x%llx, align: 0x%llx\n",
+ __func__, CAST_ULL(req_size), CAST_ULL(address_min),
+ CAST_ULL(address_max), CAST_ULL(alignment));
+
+ if (__cvmx_bootmem_check_version(0))
+ return -1;
+
+ /*
+ * Do a variety of checks to validate the arguments. The
+ * allocator code will later assume that these checks have
+ * been made. We validate that the requested constraints are
+ * not self-contradictory before we look through the list of
+ * available memory
+ */
+
+ /* 0 is not a valid req_size for this allocator */
+ if (!req_size)
+ return -1;
+
+ /* Round req_size up to multiple of minimum alignment bytes */
+ req_size = (req_size + (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1)) &
+ ~(CVMX_BOOTMEM_ALIGNMENT_SIZE - 1);
+
+ /* Make sure alignment is power of 2, and at least the minimum */
+ for (align = CVMX_BOOTMEM_ALIGNMENT_SIZE;
+ align < (1ull << 48);
+ align <<= 1) {
+ if (align >= alignment)
+ break;
+ }
+
+ align_mask = ~(align - 1);
+
+ /*
+ * Adjust address minimum based on requested alignment (round
+ * up to meet alignment). Do this here so we can reject
+ * impossible requests up front. (NOP for address_min == 0)
+ */
+ address_min = (address_min + (align - 1)) & align_mask;
+
+ /*
+ * Convert !0 address_min and 0 address_max to special case of
+ * range that specifies an exact memory block to allocate. Do
+ * this before other checks and adjustments so that this
+ * tranformation will be validated
+ */
+ if (address_min && !address_max)
+ address_max = address_min + req_size;
+ else if (!address_min && !address_max)
+ address_max = ~0ull; /* If no limits given, use max */
+
+ /*
+ * Reject inconsistent args. We have adjusted these, so this
+ * may fail due to our internal changes even if this check
+ * would pass for the values the user supplied.
+ */
+ if (req_size > address_max - address_min)
+ return -1;
+
+ __cvmx_bootmem_lock(flags);
+
+ /* Walk through the list entries to find the right fit */
+ head_addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr);
+
+ for (ent_addr = head_addr;
+ ent_addr != 0ULL && ent_addr < address_max;
+ prev_addr = ent_addr,
+ ent_addr = cvmx_bootmem_phy_get_next(ent_addr)) {
+ /* Raw free block size */
+ ent_size = cvmx_bootmem_phy_get_size(ent_addr);
+ next_addr = cvmx_bootmem_phy_get_next(ent_addr);
+
+ /* Validate the free list ascending order */
+ if (ent_size < CVMX_BOOTMEM_ALIGNMENT_SIZE ||
+ (next_addr && ent_addr > next_addr)) {
+ debug("ERROR: %s: bad free list ent: %#llx, next: %#llx\n",
+ __func__, CAST_ULL(ent_addr),
+ CAST_ULL(next_addr));
+ goto error_out;
+ }
+
+ /* adjust free block edges for alignment */
+ free_start = (ent_addr + align - 1) & align_mask;
+ free_end = (ent_addr + ent_size) & align_mask;
+
+ /* check that free block is large enough */
+ if ((free_start + req_size) > free_end)
+ continue;
+
+ /* check that desired start is within the free block */
+ if (free_end < address_min || free_start > address_max)
+ continue;
+ if ((free_end - address_min) < req_size)
+ continue;
+ if ((address_max - free_start) < req_size)
+ continue;
+
+ /* Found usebale free block */
+ target_ent_addr = ent_addr;
+ target_prev_addr = prev_addr;
+ target_size = ent_size;
+
+ /* Continue looking for highest/best block that fits */
+ }
+
+ /* Bail if the search has resulted in no eligible free blocks */
+ if (target_ent_addr == 0) {
+ debug("%s: eligible free block not found\n", __func__);
+ goto error_out;
+ }
+
+ /* Found the free block to allocate from */
+ ent_addr = target_ent_addr;
+ prev_addr = target_prev_addr;
+ ent_size = target_size;
+
+ debug("%s: using free block at %#010llx size %#llx\n",
+ __func__, CAST_ULL(ent_addr), CAST_ULL(ent_size));
+
+ /* Always allocate from the end of a free block */
+ usable_max = min_t(u64, address_max, ent_addr + ent_size);
+ desired_min_addr = usable_max - req_size;
+ desired_min_addr &= align_mask;
+
+ /* Split current free block into up to 3 free blocks */
+
+ /* Check for head room */
+ if (desired_min_addr > ent_addr) {
+ /* Create a new free block at the allocation address */
+ new_ent_addr = desired_min_addr;
+ new_ent_size = ent_size - (desired_min_addr - ent_addr);
+
+ cvmx_bootmem_phy_set_next(new_ent_addr,
+ cvmx_bootmem_phy_get_next(ent_addr));
+ cvmx_bootmem_phy_set_size(new_ent_addr, new_ent_size);
+
+ /* Split out head room into a new free block */
+ ent_size -= new_ent_size;
+ cvmx_bootmem_phy_set_next(ent_addr, new_ent_addr);
+ cvmx_bootmem_phy_set_size(ent_addr, ent_size);
+
+ debug("%s: splitting head, addr %#llx size %#llx\n",
+ __func__, CAST_ULL(ent_addr), CAST_ULL(ent_size));
+
+ /* Make the allocation target the current free block */
+ prev_addr = ent_addr;
+ ent_addr = new_ent_addr;
+ ent_size = new_ent_size;
+ }
+
+ /* Check for tail room */
+ if ((desired_min_addr + req_size) < (ent_addr + ent_size)) {
+ new_ent_addr = ent_addr + req_size;
+ new_ent_size = ent_size - req_size;
+
+ /* Create a new free block from tail room */
+ cvmx_bootmem_phy_set_next(new_ent_addr,
+ cvmx_bootmem_phy_get_next(ent_addr));
+ cvmx_bootmem_phy_set_size(new_ent_addr, new_ent_size);
+
+ debug("%s: splitting tail, addr %#llx size %#llx\n",
+ __func__, CAST_ULL(new_ent_addr), CAST_ULL(new_ent_size));
+
+ /* Adjust the current block to exclude tail room */
+ ent_size = ent_size - new_ent_size;
+ cvmx_bootmem_phy_set_next(ent_addr, new_ent_addr);
+ cvmx_bootmem_phy_set_size(ent_addr, ent_size);
+ }
+
+ /* The current free block IS the allocation target */
+ if (desired_min_addr != ent_addr || ent_size != req_size)
+ debug("ERROR: %s: internal error - addr %#llx %#llx size %#llx %#llx\n",
+ __func__, CAST_ULL(desired_min_addr), CAST_ULL(ent_addr),
+ CAST_ULL(ent_size), CAST_ULL(req_size));
+
+ /* Remove the current free block from list */
+ if (prev_addr) {
+ cvmx_bootmem_phy_set_next(prev_addr,
+ cvmx_bootmem_phy_get_next(ent_addr));
+ } else {
+ /* head of list being returned, so update head ptr */
+ CVMX_BOOTMEM_DESC_SET_FIELD(head_addr,
+ cvmx_bootmem_phy_get_next(ent_addr));
+ }
+
+ __cvmx_bootmem_unlock(flags);
+ debug("%s: allocated size: %#llx, at addr: %#010llx\n",
+ __func__,
+ CAST_ULL(req_size),
+ CAST_ULL(desired_min_addr));
+
+ return desired_min_addr;
+
+error_out:
+ /* Requested memory not found or argument error */
+ __cvmx_bootmem_unlock(flags);
+ return -1;
+}
+
+int __cvmx_bootmem_phy_free(u64 phy_addr, u64 size, u32 flags)
+{
+ u64 cur_addr;
+ u64 prev_addr = 0; /* zero is invalid */
+ int retval = 0;
+
+ debug("%s addr: %#llx, size: %#llx\n", __func__,
+ CAST_ULL(phy_addr), CAST_ULL(size));
+
+ if (__cvmx_bootmem_check_version(0))
+ return 0;
+
+ /* 0 is not a valid size for this allocator */
+ if (!size || !phy_addr)
+ return 0;
+
+ /* Round size up to mult of minimum alignment bytes */
+ size = (size + (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1)) &
+ ~(CVMX_BOOTMEM_ALIGNMENT_SIZE - 1);
+
+ __cvmx_bootmem_lock(flags);
+ cur_addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr);
+ if (cur_addr == 0 || phy_addr < cur_addr) {
+ /* add at front of list - special case with changing head ptr */
+ if (cur_addr && phy_addr + size > cur_addr)
+ goto bootmem_free_done; /* error, overlapping section */
+ else if (phy_addr + size == cur_addr) {
+ /* Add to front of existing first block */
+ cvmx_bootmem_phy_set_next(phy_addr,
+ cvmx_bootmem_phy_get_next(cur_addr));
+ cvmx_bootmem_phy_set_size(phy_addr,
+ cvmx_bootmem_phy_get_size(cur_addr) + size);
+ CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, phy_addr);
+
+ } else {
+ /* New block before first block */
+ /* OK if cur_addr is 0 */
+ cvmx_bootmem_phy_set_next(phy_addr, cur_addr);
+ cvmx_bootmem_phy_set_size(phy_addr, size);
+ CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, phy_addr);
+ }
+ retval = 1;
+ goto bootmem_free_done;
+ }
+
+ /* Find place in list to add block */
+ while (cur_addr && phy_addr > cur_addr) {
+ prev_addr = cur_addr;
+ cur_addr = cvmx_bootmem_phy_get_next(cur_addr);
+ }
+
+ if (!cur_addr) {
+ /*
+ * We have reached the end of the list, add on to end, checking
+ * to see if we need to combine with last block
+ */
+ if (prev_addr + cvmx_bootmem_phy_get_size(prev_addr) == phy_addr) {
+ cvmx_bootmem_phy_set_size(prev_addr,
+ cvmx_bootmem_phy_get_size(prev_addr) + size);
+ } else {
+ cvmx_bootmem_phy_set_next(prev_addr, phy_addr);
+ cvmx_bootmem_phy_set_size(phy_addr, size);
+ cvmx_bootmem_phy_set_next(phy_addr, 0);
+ }
+ retval = 1;
+ goto bootmem_free_done;
+ } else {
+ /*
+ * insert between prev and cur nodes, checking for merge with
+ * either/both
+ */
+ if (prev_addr + cvmx_bootmem_phy_get_size(prev_addr) == phy_addr) {
+ /* Merge with previous */
+ cvmx_bootmem_phy_set_size(prev_addr,
+ cvmx_bootmem_phy_get_size(prev_addr) + size);
+ if (phy_addr + size == cur_addr) {
+ /* Also merge with current */
+ cvmx_bootmem_phy_set_size(prev_addr,
+ cvmx_bootmem_phy_get_size(cur_addr) +
+ cvmx_bootmem_phy_get_size(prev_addr));
+ cvmx_bootmem_phy_set_next(prev_addr,
+ cvmx_bootmem_phy_get_next(cur_addr));
+ }
+ retval = 1;
+ goto bootmem_free_done;
+ } else if (phy_addr + size == cur_addr) {
+ /* Merge with current */
+ cvmx_bootmem_phy_set_size(phy_addr,
+ cvmx_bootmem_phy_get_size(cur_addr) + size);
+ cvmx_bootmem_phy_set_next(phy_addr,
+ cvmx_bootmem_phy_get_next(cur_addr));
+ cvmx_bootmem_phy_set_next(prev_addr, phy_addr);
+ retval = 1;
+ goto bootmem_free_done;
+ }
+
+ /* It is a standalone block, add in between prev and cur */
+ cvmx_bootmem_phy_set_size(phy_addr, size);
+ cvmx_bootmem_phy_set_next(phy_addr, cur_addr);
+ cvmx_bootmem_phy_set_next(prev_addr, phy_addr);
+ }
+ retval = 1;
+
+bootmem_free_done:
+ __cvmx_bootmem_unlock(flags);
+ return retval;
+}
+
+void cvmx_bootmem_phy_list_print(void)
+{
+ u64 addr;
+
+ addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr);
+ printf("\n\n\nPrinting bootmem block list, descriptor: 0x%llx, head is 0x%llx\n",
+ CAST_ULL(cvmx_bootmem_desc_addr), CAST_ULL(addr));
+ printf("Descriptor version: %d.%d\n",
+ (int)CVMX_BOOTMEM_DESC_GET_FIELD(major_version),
+ (int)CVMX_BOOTMEM_DESC_GET_FIELD(minor_version));
+ if (CVMX_BOOTMEM_DESC_GET_FIELD(major_version) > 3)
+ debug("Warning: Bootmem descriptor version is newer than expected\n");
+
+ if (!addr)
+ printf("mem list is empty!\n");
+
+ while (addr) {
+ printf("Block address: 0x%08llx, size: 0x%08llx, next: 0x%08llx\n", CAST_ULL(addr),
+ CAST_ULL(cvmx_bootmem_phy_get_size(addr)),
+ CAST_ULL(cvmx_bootmem_phy_get_next(addr)));
+ addr = cvmx_bootmem_phy_get_next(addr);
+ }
+ printf("\n\n");
+}
+
+u64 cvmx_bootmem_phy_available_mem(u64 min_block_size)
+{
+ u64 addr;
+
+ u64 available_mem = 0;
+
+ __cvmx_bootmem_lock(0);
+ addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr);
+ while (addr) {
+ if (cvmx_bootmem_phy_get_size(addr) >= min_block_size)
+ available_mem += cvmx_bootmem_phy_get_size(addr);
+ addr = cvmx_bootmem_phy_get_next(addr);
+ }
+ __cvmx_bootmem_unlock(0);
+ return available_mem;
+}
+
+u64 cvmx_bootmem_phy_named_block_find(const char *name, u32 flags)
+{
+ u64 result = 0;
+
+ debug("%s: %s\n", __func__, name);
+
+ __cvmx_bootmem_lock(flags);
+ if (!__cvmx_bootmem_check_version(3)) {
+ int i;
+ u64 named_block_array_addr =
+ CVMX_BOOTMEM_DESC_GET_FIELD(named_block_array_addr);
+ int num_blocks =
+ CVMX_BOOTMEM_DESC_GET_FIELD(named_block_num_blocks);
+ int name_length =
+ CVMX_BOOTMEM_DESC_GET_FIELD(named_block_name_len);
+ u64 named_addr = named_block_array_addr;
+
+ for (i = 0; i < num_blocks; i++) {
+ u64 named_size =
+ CVMX_BOOTMEM_NAMED_GET_FIELD(named_addr, size);
+ if (name && named_size) {
+ char name_tmp[name_length + 1];
+
+ CVMX_BOOTMEM_NAMED_GET_NAME(named_addr,
+ name_tmp,
+ name_length);
+ if (!strncmp(name, name_tmp, name_length)) {
+ result = named_addr;
+ break;
+ }
+ } else if (!name && !named_size) {
+ result = named_addr;
+ break;
+ }
+
+ named_addr +=
+ sizeof(struct cvmx_bootmem_named_block_desc);
+ }
+ }
+ __cvmx_bootmem_unlock(flags);
+ return result;
+}
+
+int cvmx_bootmem_phy_named_block_free(const char *name, u32 flags)
+{
+ u64 named_block_addr;
+
+ if (__cvmx_bootmem_check_version(3))
+ return 0;
+
+ debug("%s: %s\n", __func__, name);
+
+ /*
+ * Take lock here, as name lookup/block free/name free need to be
+ * atomic
+ */
+ __cvmx_bootmem_lock(flags);
+
+ named_block_addr = cvmx_bootmem_phy_named_block_find(name,
+ CVMX_BOOTMEM_FLAG_NO_LOCKING);
+ if (named_block_addr) {
+ u64 named_addr =
+ CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr,
+ base_addr);
+ u64 named_size =
+ CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr, size);
+
+ debug("%s: %s, base: 0x%llx, size: 0x%llx\n",
+ __func__, name, CAST_ULL(named_addr),
+ CAST_ULL(named_size));
+
+ __cvmx_bootmem_phy_free(named_addr, named_size,
+ CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+ /* Set size to zero to indicate block not used. */
+ CVMX_BOOTMEM_NAMED_SET_FIELD(named_block_addr, size, 0);
+ }
+
+ __cvmx_bootmem_unlock(flags);
+ return !!named_block_addr; /* 0 on failure, 1 on success */
+}
+
+s64 cvmx_bootmem_phy_named_block_alloc(u64 size, u64 min_addr,
+ u64 max_addr,
+ u64 alignment, const char *name,
+ u32 flags)
+{
+ s64 addr_allocated;
+ u64 named_block_desc_addr;
+
+ debug("%s: size: 0x%llx, min: 0x%llx, max: 0x%llx, align: 0x%llx, name: %s\n",
+ __func__, CAST_ULL(size), CAST_ULL(min_addr), CAST_ULL(max_addr),
+ CAST_ULL(alignment), name);
+
+ if (__cvmx_bootmem_check_version(3))
+ return -1;
+
+ /*
+ * Take lock here, as name lookup/block alloc/name add need to be
+ * atomic
+ */
+ __cvmx_bootmem_lock(flags);
+
+ named_block_desc_addr =
+ cvmx_bootmem_phy_named_block_find(name, flags |
+ CVMX_BOOTMEM_FLAG_NO_LOCKING);
+ if (named_block_desc_addr) {
+ __cvmx_bootmem_unlock(flags);
+ return -1;
+ }
+
+ /* Get pointer to first available named block descriptor */
+ named_block_desc_addr =
+ cvmx_bootmem_phy_named_block_find(NULL, flags |
+ CVMX_BOOTMEM_FLAG_NO_LOCKING);
+ if (!named_block_desc_addr) {
+ __cvmx_bootmem_unlock(flags);
+ return -1;
+ }
+
+ /*
+ * Round size up to mult of minimum alignment bytes
+ * We need the actual size allocated to allow for blocks to be
+ * coallesced when they are freed. The alloc routine does the
+ * same rounding up on all allocations.
+ */
+ size = (size + (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1)) &
+ ~(CVMX_BOOTMEM_ALIGNMENT_SIZE - 1);
+
+ addr_allocated = cvmx_bootmem_phy_alloc(size, min_addr, max_addr,
+ alignment,
+ flags | CVMX_BOOTMEM_FLAG_NO_LOCKING);
+ if (addr_allocated >= 0) {
+ CVMX_BOOTMEM_NAMED_SET_FIELD(named_block_desc_addr, base_addr,
+ addr_allocated);
+ CVMX_BOOTMEM_NAMED_SET_FIELD(named_block_desc_addr, size, size);
+ CVMX_BOOTMEM_NAMED_SET_NAME(named_block_desc_addr, name,
+ CVMX_BOOTMEM_DESC_GET_FIELD(named_block_name_len));
+ }
+
+ __cvmx_bootmem_unlock(flags);
+ return addr_allocated;
+}
+
+void cvmx_bootmem_phy_named_block_print(void)
+{
+ int i;
+ int printed = 0;
+
+ u64 named_block_array_addr =
+ CVMX_BOOTMEM_DESC_GET_FIELD(named_block_array_addr);
+ int num_blocks = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_num_blocks);
+ int name_length = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_name_len);
+ u64 named_block_addr = named_block_array_addr;
+
+ debug("%s: desc addr: 0x%llx\n",
+ __func__, CAST_ULL(cvmx_bootmem_desc_addr));
+
+ if (__cvmx_bootmem_check_version(3))
+ return;
+
+ printf("List of currently allocated named bootmem blocks:\n");
+ for (i = 0; i < num_blocks; i++) {
+ u64 named_size =
+ CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr, size);
+ if (named_size) {
+ char name_tmp[name_length + 1];
+ u64 named_addr =
+ CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr,
+ base_addr);
+ CVMX_BOOTMEM_NAMED_GET_NAME(named_block_addr, name_tmp,
+ name_length);
+ printed++;
+ printf("Name: %s, address: 0x%08llx, size: 0x%08llx, index: %d\n", name_tmp,
+ CAST_ULL(named_addr),
+ CAST_ULL(named_size), i);
+ }
+ named_block_addr +=
+ sizeof(struct cvmx_bootmem_named_block_desc);
+ }
+
+ if (!printed)
+ printf("No named bootmem blocks exist.\n");
+}
+
+s64 cvmx_bootmem_phy_mem_list_init(u64 mem_size,
+ u32 low_reserved_bytes,
+ struct cvmx_bootmem_desc *desc_buffer)
+{
+ u64 cur_block_addr;
+ s64 addr;
+ int i;
+
+ debug("%s (arg desc ptr: %p, cvmx_bootmem_desc: 0x%llx)\n",
+ __func__, desc_buffer, CAST_ULL(cvmx_bootmem_desc_addr));
+
+ /*
+ * Descriptor buffer needs to be in 32 bit addressable space to be
+ * compatible with 32 bit applications
+ */
+ if (!desc_buffer) {
+ debug("ERROR: no memory for cvmx_bootmem descriptor provided\n");
+ return 0;
+ }
+
+ if (mem_size > OCTEON_MAX_PHY_MEM_SIZE) {
+ mem_size = OCTEON_MAX_PHY_MEM_SIZE;
+ debug("ERROR: requested memory size too large, truncating to maximum size\n");
+ }
+
+ if (cvmx_bootmem_desc_addr)
+ return 1;
+
+ /* Initialize cvmx pointer to descriptor */
+ cvmx_bootmem_init(cvmx_ptr_to_phys(desc_buffer));
+
+ /* Fill the bootmem descriptor */
+ CVMX_BOOTMEM_DESC_SET_FIELD(lock, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(flags, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(major_version, CVMX_BOOTMEM_DESC_MAJ_VER);
+ CVMX_BOOTMEM_DESC_SET_FIELD(minor_version, CVMX_BOOTMEM_DESC_MIN_VER);
+ CVMX_BOOTMEM_DESC_SET_FIELD(app_data_addr, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(app_data_size, 0);
+
+ /*
+ * Set up global pointer to start of list, exclude low 64k for exception
+ * vectors, space for global descriptor
+ */
+ cur_block_addr = (OCTEON_DDR0_BASE + low_reserved_bytes);
+
+ if (mem_size <= OCTEON_DDR0_SIZE) {
+ __cvmx_bootmem_phy_free(cur_block_addr,
+ mem_size - low_reserved_bytes, 0);
+ goto frees_done;
+ }
+
+ __cvmx_bootmem_phy_free(cur_block_addr,
+ OCTEON_DDR0_SIZE - low_reserved_bytes, 0);
+
+ mem_size -= OCTEON_DDR0_SIZE;
+
+ /* Add DDR2 block next if present */
+ if (mem_size > OCTEON_DDR1_SIZE) {
+ __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE, OCTEON_DDR1_SIZE, 0);
+ __cvmx_bootmem_phy_free(OCTEON_DDR2_BASE,
+ mem_size - OCTEON_DDR1_SIZE, 0);
+ } else {
+ __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE, mem_size, 0);
+ }
+frees_done:
+
+ /* Initialize the named block structure */
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_name_len, CVMX_BOOTMEM_NAME_LEN);
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_num_blocks,
+ CVMX_BOOTMEM_NUM_NAMED_BLOCKS);
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_array_addr, 0);
+
+ /* Allocate this near the top of the low 256 MBytes of memory */
+ addr = cvmx_bootmem_phy_alloc(CVMX_BOOTMEM_NUM_NAMED_BLOCKS *
+ sizeof(struct cvmx_bootmem_named_block_desc),
+ 0, 0x10000000, 0,
+ CVMX_BOOTMEM_FLAG_END_ALLOC);
+ if (addr >= 0)
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_array_addr, addr);
+
+ debug("%s: named_block_array_addr: 0x%llx)\n",
+ __func__, CAST_ULL(addr));
+
+ if (addr < 0) {
+ debug("FATAL ERROR: unable to allocate memory for bootmem descriptor!\n");
+ return 0;
+ }
+
+ for (i = 0; i < CVMX_BOOTMEM_NUM_NAMED_BLOCKS; i++) {
+ CVMX_BOOTMEM_NAMED_SET_FIELD(addr, base_addr, 0);
+ CVMX_BOOTMEM_NAMED_SET_FIELD(addr, size, 0);
+ addr += sizeof(struct cvmx_bootmem_named_block_desc);
+ }
+
+ return 1;
+}
+
+s64 cvmx_bootmem_phy_mem_list_init_multi(u8 node_mask,
+ u32 mem_sizes[],
+ u32 low_reserved_bytes,
+ struct cvmx_bootmem_desc *desc_buffer)
+{
+ u64 cur_block_addr;
+ u64 mem_size;
+ s64 addr;
+ int i;
+ int node;
+ u64 node_base; /* Make u64 to reduce type casting */
+
+ mem_sizes[0] = gd->ram_size / (1024 * 1024);
+
+ debug("cvmx_bootmem_phy_mem_list_init (arg desc ptr: %p, cvmx_bootmem_desc: 0x%llx)\n",
+ desc_buffer, CAST_ULL(cvmx_bootmem_desc_addr));
+
+ /*
+ * Descriptor buffer needs to be in 32 bit addressable space to be
+ * compatible with 32 bit applications
+ */
+ if (!desc_buffer) {
+ debug("ERROR: no memory for cvmx_bootmem descriptor provided\n");
+ return 0;
+ }
+
+ cvmx_coremask_for_each_node(node, node_mask) {
+ if ((mem_sizes[node] * 1024 * 1024) > OCTEON_MAX_PHY_MEM_SIZE) {
+ mem_sizes[node] = OCTEON_MAX_PHY_MEM_SIZE /
+ (1024 * 1024);
+ debug("ERROR node#%lld: requested memory size too large, truncating to maximum size\n",
+ CAST_ULL(node));
+ }
+ }
+
+ if (cvmx_bootmem_desc_addr)
+ return 1;
+
+ /* Initialize cvmx pointer to descriptor */
+ cvmx_bootmem_init(cvmx_ptr_to_phys(desc_buffer));
+
+ /* Fill the bootmem descriptor */
+ CVMX_BOOTMEM_DESC_SET_FIELD(lock, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(flags, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(major_version, CVMX_BOOTMEM_DESC_MAJ_VER);
+ CVMX_BOOTMEM_DESC_SET_FIELD(minor_version, CVMX_BOOTMEM_DESC_MIN_VER);
+ CVMX_BOOTMEM_DESC_SET_FIELD(app_data_addr, 0);
+ CVMX_BOOTMEM_DESC_SET_FIELD(app_data_size, 0);
+
+ cvmx_coremask_for_each_node(node, node_mask) {
+ if (node != 0) /* do not reserve memory on remote nodes */
+ low_reserved_bytes = 0;
+
+ mem_size = (u64)mem_sizes[node] * (1024 * 1024); /* MBytes */
+
+ /*
+ * Set up global pointer to start of list, exclude low 64k
+ * for exception vectors, space for global descriptor
+ */
+
+ node_base = (u64)node << CVMX_NODE_MEM_SHIFT;
+ cur_block_addr = (OCTEON_DDR0_BASE + low_reserved_bytes) |
+ node_base;
+
+ if (mem_size <= OCTEON_DDR0_SIZE) {
+ __cvmx_bootmem_phy_free(cur_block_addr,
+ mem_size - low_reserved_bytes,
+ 0);
+ continue;
+ }
+
+ __cvmx_bootmem_phy_free(cur_block_addr,
+ OCTEON_DDR0_SIZE - low_reserved_bytes,
+ 0);
+
+ mem_size -= OCTEON_DDR0_SIZE;
+
+ /* Add DDR2 block next if present */
+ if (mem_size > OCTEON_DDR1_SIZE) {
+ __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE |
+ node_base,
+ OCTEON_DDR1_SIZE, 0);
+ __cvmx_bootmem_phy_free(OCTEON_DDR2_BASE |
+ node_base,
+ mem_size - OCTEON_DDR1_SIZE, 0);
+ } else {
+ __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE |
+ node_base,
+ mem_size, 0);
+ }
+ }
+
+ debug("%s: Initialize the named block\n", __func__);
+
+ /* Initialize the named block structure */
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_name_len, CVMX_BOOTMEM_NAME_LEN);
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_num_blocks,
+ CVMX_BOOTMEM_NUM_NAMED_BLOCKS);
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_array_addr, 0);
+
+ /* Allocate this near the top of the low 256 MBytes of memory */
+ addr = cvmx_bootmem_phy_alloc(CVMX_BOOTMEM_NUM_NAMED_BLOCKS *
+ sizeof(struct cvmx_bootmem_named_block_desc),
+ 0, 0x10000000, 0,
+ CVMX_BOOTMEM_FLAG_END_ALLOC);
+ if (addr >= 0)
+ CVMX_BOOTMEM_DESC_SET_FIELD(named_block_array_addr, addr);
+
+ debug("cvmx_bootmem_phy_mem_list_init: named_block_array_addr: 0x%llx)\n",
+ CAST_ULL(addr));
+
+ if (addr < 0) {
+ debug("FATAL ERROR: unable to allocate memory for bootmem descriptor!\n");
+ return 0;
+ }
+
+ for (i = 0; i < CVMX_BOOTMEM_NUM_NAMED_BLOCKS; i++) {
+ CVMX_BOOTMEM_NAMED_SET_FIELD(addr, base_addr, 0);
+ CVMX_BOOTMEM_NAMED_SET_FIELD(addr, size, 0);
+ addr += sizeof(struct cvmx_bootmem_named_block_desc);
+ }
+
+ // test-only: DEBUG ifdef???
+ cvmx_bootmem_phy_list_print();
+
+ return 1;
+}
+
+int cvmx_bootmem_reserve_memory(u64 start_addr, u64 size,
+ const char *name, u32 flags)
+{
+ u64 addr;
+ int rc = 1;
+ static unsigned int block_num;
+ char block_name[CVMX_BOOTMEM_NAME_LEN];
+
+ debug("%s: start %#llx, size: %#llx, name: %s, flags:%#x)\n",
+ __func__, CAST_ULL(start_addr), CAST_ULL(size), name, flags);
+
+ if (__cvmx_bootmem_check_version(3))
+ return 0;
+
+ addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr);
+ if (!addr)
+ return 0;
+
+ if (!name)
+ name = "__cvmx_bootmem_reserved";
+
+ while (addr && rc) {
+ u64 block_size = cvmx_bootmem_phy_get_size(addr);
+ u64 reserve_size = 0;
+
+ if (addr >= start_addr && addr < start_addr + size) {
+ reserve_size = size - (addr - start_addr);
+ if (block_size < reserve_size)
+ reserve_size = block_size;
+ } else if (start_addr > addr &&
+ start_addr < (addr + block_size)) {
+ reserve_size = block_size - (start_addr - addr);
+ }
+
+ if (reserve_size) {
+ snprintf(block_name, sizeof(block_name),
+ "%.32s_%012llx_%u",
+ name, (unsigned long long)start_addr,
+ (unsigned int)block_num);
+
+ debug("%s: Reserving 0x%llx bytes at address 0x%llx with name %s\n",
+ __func__, CAST_ULL(reserve_size),
+ CAST_ULL(addr), block_name);
+
+ if (cvmx_bootmem_phy_named_block_alloc(reserve_size,
+ addr, 0, 0,
+ block_name,
+ flags) == -1) {
+ debug("%s: Failed to reserve 0x%llx bytes at address 0x%llx\n",
+ __func__, CAST_ULL(reserve_size),
+ (unsigned long long)addr);
+ rc = 0;
+ break;
+ }
+
+ debug("%s: Reserved 0x%llx bytes at address 0x%llx with name %s\n",
+ __func__, CAST_ULL(reserve_size),
+ CAST_ULL(addr), block_name);
+ }
+
+ addr = cvmx_bootmem_phy_get_next(addr);
+ block_num++;
+ }
+
+ return rc;
+}
+
+void cvmx_bootmem_lock(void)
+{
+ __cvmx_bootmem_lock(0);
+}
+
+void cvmx_bootmem_unlock(void)
+{
+ __cvmx_bootmem_unlock(0);
+}
+
+void *__cvmx_phys_addr_to_ptr(u64 phys, int size)
+{
+ void *tmp;
+
+ if (sizeof(void *) == 8) {
+ tmp = CASTPTR(void, CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS, phys));
+ } else {
+ u32 phy32 = (u32)(phys & 0x7fffffffULL);
+
+ tmp = CASTPTR(void, CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0,
+ phy32));
+ }
+
+ return tmp;
+}
+
+void *__cvmx_bootmem_internal_get_desc_ptr(void)
+{
+ return cvmx_phys_to_ptr(cvmx_bootmem_desc_addr);
+}
diff --git a/arch/mips/mach-octeon/include/mach/cvmx-bootmem.h b/arch/mips/mach-octeon/include/mach/cvmx-bootmem.h
new file mode 100644
index 0000000000..d60668c9ad
--- /dev/null
+++ b/arch/mips/mach-octeon/include/mach/cvmx-bootmem.h
@@ -0,0 +1,533 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+/**
+ * @file
+ * Simple allocate only memory allocator. Used to allocate memory at application
+ * start time.
+ */
+
+#ifndef __CVMX_BOOTMEM_H__
+#define __CVMX_BOOTMEM_H__
+
+/* Must be multiple of 8, changing breaks ABI */
+#define CVMX_BOOTMEM_NAME_LEN 128
+/* Can change without breaking ABI */
+#define CVMX_BOOTMEM_NUM_NAMED_BLOCKS 64
+/* minimum alignment of bootmem alloced blocks */
+#define CVMX_BOOTMEM_ALIGNMENT_SIZE (16ull)
+
+/* Flags for cvmx_bootmem_phy_mem* functions */
+/* Allocate from end of block instead of beginning */
+#define CVMX_BOOTMEM_FLAG_END_ALLOC (1 << 0)
+#define CVMX_BOOTMEM_FLAG_NO_LOCKING (1 << 1) /* Don't do any locking. */
+
+/* Real physical addresses of memory regions */
+#define OCTEON_DDR0_BASE (0x0ULL)
+#define OCTEON_DDR0_SIZE (0x010000000ULL)
+#define OCTEON_DDR1_BASE ((OCTEON_IS_OCTEON2() || OCTEON_IS_OCTEON3()) \
+ ? 0x20000000ULL : 0x410000000ULL)
+#define OCTEON_DDR1_SIZE (0x010000000ULL)
+#define OCTEON_DDR2_BASE ((OCTEON_IS_OCTEON2() || OCTEON_IS_OCTEON3()) \
+ ? 0x30000000ULL : 0x20000000ULL)
+#define OCTEON_DDR2_SIZE ((OCTEON_IS_OCTEON2() || OCTEON_IS_OCTEON3()) \
+ ? 0x7d0000000ULL : 0x3e0000000ULL)
+#define OCTEON_MAX_PHY_MEM_SIZE ((OCTEON_IS_MODEL(OCTEON_CN68XX)) \
+ ? 128 * 1024 * 1024 * 1024ULL \
+ : (OCTEON_IS_OCTEON2()) \
+ ? 32 * 1024 * 1024 * 1024ull \
+ : (OCTEON_IS_OCTEON3()) \
+ ? 512 * 1024 * 1024 * 1024ULL \
+ : 16 * 1024 * 1024 * 1024ULL)
+
+/*
+ * First bytes of each free physical block of memory contain this structure,
+ * which is used to maintain the free memory list. Since the bootloader is
+ * only 32 bits, there is a union providing 64 and 32 bit versions. The
+ * application init code converts addresses to 64 bit addresses before the
+ * application starts.
+ */
+struct cvmx_bootmem_block_header {
+ /* Note: these are referenced from assembly routines in the bootloader,
+ * so this structure should not be changed without changing those
+ * routines as well.
+ */
+ u64 next_block_addr;
+ u64 size;
+
+};
+
+/*
+ * Structure for named memory blocks
+ * Number of descriptors
+ * available can be changed without affecting compatibility,
+ * but name length changes require a bump in the bootmem
+ * descriptor version
+ * Note: This structure must be naturally 64 bit aligned, as a single
+ * memory image will be used by both 32 and 64 bit programs.
+ */
+struct cvmx_bootmem_named_block_desc {
+ u64 base_addr; /* Base address of named block */
+ /*
+ * Size actually allocated for named block (may differ from requested)
+ */
+ u64 size;
+ char name[CVMX_BOOTMEM_NAME_LEN]; /* name of named block */
+};
+
+/* Current descriptor versions */
+/* CVMX bootmem descriptor major version */
+#define CVMX_BOOTMEM_DESC_MAJ_VER 3
+/* CVMX bootmem descriptor minor version */
+#define CVMX_BOOTMEM_DESC_MIN_VER 0
+
+/*
+ * First three members of cvmx_bootmem_desc_t are left in original
+ * positions for backwards compatibility.
+ */
+struct cvmx_bootmem_desc {
+ /* Linux compatible proxy for __BIG_ENDIAN */
+ u32 lock; /* spinlock to control access to list */
+ u32 flags; /* flags for indicating various conditions */
+ u64 head_addr;
+
+ /* incremented changed when incompatible changes made */
+ u32 major_version;
+ /*
+ * incremented changed when compatible changes made, reset to
+ * zero when major incremented
+ */
+ u32 minor_version;
+ u64 app_data_addr;
+ u64 app_data_size;
+
+ /* number of elements in named blocks array */
+ u32 named_block_num_blocks;
+ /* length of name array in bootmem blocks */
+ u32 named_block_name_len;
+ /* address of named memory block descriptors */
+ u64 named_block_array_addr;
+};
+
+/**
+ * Initialize the boot alloc memory structures. This is
+ * normally called inside of cvmx_user_app_init()
+ *
+ * @param mem_desc_addr Address of the free memory list
+ * @return
+ */
+int cvmx_bootmem_init(u64 mem_desc_addr);
+
+/**
+ * Allocate a block of memory from the free list that was passed
+ * to the application by the bootloader.
+ * This is an allocate-only algorithm, so freeing memory is not possible.
+ *
+ * @param size Size in bytes of block to allocate
+ * @param alignment Alignment required - must be power of 2
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc(u64 size, u64 alignment);
+
+/**
+ * Allocate a block of memory from the free list that was passed
+ * to the application by the bootloader from a specific node.
+ * This is an allocate-only algorithm, so freeing memory is not possible.
+ *
+ * @param node The node to allocate memory from
+ * @param size Size in bytes of block to allocate
+ * @param alignment Alignment required - must be power of 2
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_node(u64 node, u64 size, u64 alignment);
+
+/**
+ * Allocate a block of memory from the free list that was
+ * passed to the application by the bootloader at a specific
+ * address. This is an allocate-only algorithm, so
+ * freeing memory is not possible. Allocation will fail if
+ * memory cannot be allocated at the specified address.
+ *
+ * @param size Size in bytes of block to allocate
+ * @param address Physical address to allocate memory at. If this
+ * memory is not available, the allocation fails.
+ * @param alignment Alignment required - must be power of 2
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_address(u64 size, u64 address,
+ u64 alignment);
+
+/**
+ * Allocate a block of memory from the free list that was
+ * passed to the application by the bootloader within a specified
+ * address range. This is an allocate-only algorithm, so
+ * freeing memory is not possible. Allocation will fail if
+ * memory cannot be allocated in the requested range.
+ *
+ * @param size Size in bytes of block to allocate
+ * @param min_addr defines the minimum address of the range
+ * @param max_addr defines the maximum address of the range
+ * @param alignment Alignment required - must be power of 2
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_range(u64 size, u64 alignment,
+ u64 min_addr, u64 max_addr);
+
+/**
+ * Allocate a block of memory from the free list that was passed
+ * to the application by the bootloader, and assign it a name in the
+ * global named block table. (part of the cvmx_bootmem_descriptor_t structure)
+ * Named blocks can later be freed.
+ *
+ * @param size Size in bytes of block to allocate
+ * @param alignment Alignment required - must be power of 2
+ * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named(u64 size, u64 alignment,
+ const char *name);
+
+/**
+ * Allocate a block of memory from the free list that was passed
+ * to the application by the bootloader, and assign it a name in the
+ * global named block table. (part of the cvmx_bootmem_descriptor_t structure)
+ * Named blocks can later be freed.
+ *
+ * @param size Size in bytes of block to allocate
+ * @param alignment Alignment required - must be power of 2
+ * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ * @param flags Flags to control options for the allocation.
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named_flags(u64 size, u64 alignment,
+ const char *name, u32 flags);
+
+/**
+ * Allocate a block of memory from the free list that was passed
+ * to the application by the bootloader, and assign it a name in the
+ * global named block table. (part of the cvmx_bootmem_descriptor_t structure)
+ * Named blocks can later be freed.
+ *
+ * @param size Size in bytes of block to allocate
+ * @param address Physical address to allocate memory at. If this
+ * memory is not available, the allocation fails.
+ * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named_address(u64 size, u64 address,
+ const char *name);
+
+/**
+ * Allocate a block of memory from a specific range of the free list
+ * that was passed to the application by the bootloader, and assign it
+ * a name in the global named block table. (part of the
+ * cvmx_bootmem_descriptor_t structure) Named blocks can later be
+ * freed. If request cannot be satisfied within the address range
+ * specified, NULL is returned
+ *
+ * @param size Size in bytes of block to allocate
+ * @param min_addr minimum address of range
+ * @param max_addr maximum address of range
+ * @param align Alignment of memory to be allocated. (must be a power of 2)
+ * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named_range(u64 size, u64 min_addr,
+ u64 max_addr, u64 align,
+ const char *name);
+
+/**
+ * Allocate if needed a block of memory from a specific range of the
+ * free list that was passed to the application by the bootloader, and
+ * assign it a name in the global named block table. (part of the
+ * cvmx_bootmem_descriptor_t structure) Named blocks can later be
+ * freed. If the requested name block is already allocated, return
+ * the pointer to block of memory. If request cannot be satisfied
+ * within the address range specified, NULL is returned
+ *
+ * @param size Size in bytes of block to allocate
+ * @param min_addr minimum address of range
+ * @param max_addr maximum address of range
+ * @param align Alignment of memory to be allocated. (must be a power of 2)
+ * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ * @param init Initialization function
+ *
+ * The initialization function is optional, if omitted the named block
+ * is initialized to all zeros when it is created, i.e. once.
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named_range_once(u64 size,
+ u64 min_addr,
+ u64 max_addr,
+ u64 align,
+ const char *name,
+ void (*init)(void *));
+
+/**
+ * Allocate all free memory starting at the start address. This is used to
+ * prevent any free blocks from later being allocated within the reserved space.
+ * Note that any memory allocated with this function cannot be later freed.
+ *
+ * @param start_addr Starting address to reserve
+ * @param size Size in bytes to reserve starting at start_addr
+ * @param name Name to assign to reserved blocks
+ * @param flags Flags to use when reserving memory
+ *
+ * @return 0 on failure,
+ * !0 on success
+ */
+int cvmx_bootmem_reserve_memory(u64 start_addr, u64 size,
+ const char *name, u32 flags);
+
+/**
+ * Frees a previously allocated named bootmem block.
+ *
+ * @param name name of block to free
+ *
+ * @return 0 on failure,
+ * !0 on success
+ */
+int cvmx_bootmem_free_named(const char *name);
+
+/**
+ * Finds a named bootmem block by name.
+ *
+ * @param name name of block to free
+ *
+ * @return pointer to named block descriptor on success
+ * 0 on failure
+ */
+const struct cvmx_bootmem_named_block_desc *
+cvmx_bootmem_find_named_block(const char *name);
+
+/**
+ * Returns the size of available memory in bytes, only
+ * counting blocks that are at least as big as the minimum block
+ * size.
+ *
+ * @param min_block_size
+ * Minimum block size to count in total.
+ *
+ * @return Number of bytes available for allocation that meet the
+ * block size requirement
+ */
+u64 cvmx_bootmem_available_mem(u64 min_block_size);
+
+/**
+ * Prints out the list of named blocks that have been allocated
+ * along with their addresses and sizes.
+ * This is primarily used for debugging purposes
+ */
+void cvmx_bootmem_print_named(void);
+
+/**
+ * Allocates a block of physical memory from the free list, at
+ * (optional) requested address and alignment.
+ *
+ * @param req_size size of region to allocate. All requests are
+ * rounded up to be a multiple CVMX_BOOTMEM_ALIGNMENT_SIZE bytes size
+ *
+ * @param address_min Minimum address that block can occupy.
+ *
+ * @param address_max Specifies the maximum address_min (inclusive)
+ * that the allocation can use.
+ *
+ * @param alignment Requested alignment of the block. If this
+ * alignment cannot be met, the allocation fails.
+ * This must be a power of 2. (Note: Alignment of
+ * CVMX_BOOTMEM_ALIGNMENT_SIZE bytes is required, and
+ * internally enforced. Requested alignments of less
+ * than CVMX_BOOTMEM_ALIGNMENT_SIZE are set to
+ * CVMX_BOOTMEM_ALIGNMENT_SIZE.)
+ * @param flags Flags to control options for the allocation.
+ *
+ * @return physical address of block allocated, or -1 on failure
+ */
+s64 cvmx_bootmem_phy_alloc(u64 req_size, u64 address_min, u64 address_max,
+ u64 alignment, u32 flags);
+
+/**
+ * Allocates a named block of physical memory from the free list, at
+ * (optional) requested address and alignment.
+ *
+ * @param size size of region to allocate. All requests are rounded
+ * up to be a multiple CVMX_BOOTMEM_ALIGNMENT_SIZE bytes size
+ *
+ * @param min_addr Minimum address that block can occupy.
+ *
+ * @param max_addr Specifies the maximum address_min (inclusive) that
+ * the allocation can use.
+ *
+ * @param alignment Requested alignment of the block. If this
+ * alignment cannot be met, the allocation fails.
+ * This must be a power of 2. (Note: Alignment of
+ * CVMX_BOOTMEM_ALIGNMENT_SIZE bytes is required, and
+ * internally enforced. Requested alignments of less
+ * than CVMX_BOOTMEM_ALIGNMENT_SIZE are set to
+ * CVMX_BOOTMEM_ALIGNMENT_SIZE.)
+ *
+ * @param name name to assign to named block
+ *
+ * @param flags Flags to control options for the allocation.
+ *
+ * @return physical address of block allocated, or -1 on failure
+ */
+s64 cvmx_bootmem_phy_named_block_alloc(u64 size, u64 min_addr, u64 max_addr,
+ u64 alignment, const char *name,
+ u32 flags);
+
+/**
+ * Finds a named memory block by name.
+ * Also used for finding an unused entry in the named block table.
+ *
+ * @param name Name of memory block to find. If NULL pointer given,
+ * then finds unused descriptor, if available.
+ *
+ * @param flags Flags to control options for the allocation.
+ *
+ * @return Physical address of the memory block descriptor, zero if not
+ * found. If zero returned when name parameter is NULL, then no
+ * memory block descriptors are available.
+ */
+u64 cvmx_bootmem_phy_named_block_find(const char *name, u32 flags);
+
+/**
+ * Returns the size of available memory in bytes, only
+ * counting blocks that are at least as big as the minimum block
+ * size.
+ *
+ * @param min_block_size
+ * Minimum block size to count in total.
+ *
+ * @return Number of bytes available for allocation that meet the
+ * block size requirement
+ */
+u64 cvmx_bootmem_phy_available_mem(u64 min_block_size);
+
+/**
+ * Frees a named block.
+ *
+ * @param name name of block to free
+ * @param flags flags for passing options
+ *
+ * @return 0 on failure
+ * 1 on success
+ */
+int cvmx_bootmem_phy_named_block_free(const char *name, u32 flags);
+
+/**
+ * Frees a block to the bootmem allocator list. This must
+ * be used with care, as the size provided must match the size
+ * of the block that was allocated, or the list will become
+ * corrupted.
+ *
+ * IMPORTANT: This is only intended to be used as part of named block
+ * frees and initial population of the free memory list.
+ * *
+ *
+ * @param phy_addr physical address of block
+ * @param size size of block in bytes.
+ * @param flags flags for passing options
+ *
+ * @return 1 on success,
+ * 0 on failure
+ */
+int __cvmx_bootmem_phy_free(u64 phy_addr, u64 size, u32 flags);
+
+/**
+ * Prints the list of currently allocated named blocks
+ *
+ */
+void cvmx_bootmem_phy_named_block_print(void);
+
+/**
+ * Prints the list of available memory.
+ *
+ */
+void cvmx_bootmem_phy_list_print(void);
+
+/**
+ * This function initializes the free memory list used by cvmx_bootmem.
+ * This must be called before any allocations can be done.
+ *
+ * @param mem_size Total memory available, in bytes
+ *
+ * @param low_reserved_bytes Number of bytes to reserve (leave out of
+ * free list) at address 0x0.
+ *
+ * @param desc_buffer Buffer for the bootmem descriptor. This must be
+ * a 32 bit addressable address.
+ *
+ * @return 1 on success
+ * 0 on failure
+ */
+s64 cvmx_bootmem_phy_mem_list_init(u64 mem_size, u32 low_reserved_bytes,
+ struct cvmx_bootmem_desc *desc_buffer);
+
+/**
+ * This function initializes the free memory list used by cvmx_bootmem.
+ * This must be called before any allocations can be done.
+ *
+ * @param nodemask Nodemask - one bit per node (bit0->node0, bit1->node1,...)
+ *
+ * @param mem_size[] Array of memory sizes in MBytes per node ([0]->node0,...)
+ *
+ * @param low_reserved_bytes Number of bytes to reserve (leave out of
+ * free list) at address 0x0.
+ *
+ * @param desc_buffer Buffer for the bootmem descriptor. This must be
+ * a 32 bit addressable address.
+ *
+ * @return 1 on success
+ * 0 on failure
+ */
+s64 cvmx_bootmem_phy_mem_list_init_multi(u8 nodemask, u32 mem_size[],
+ u32 low_reserved_bytes,
+ struct cvmx_bootmem_desc *desc_buffer);
+/**
+ * Locks the bootmem allocator. This is useful in certain situations
+ * where multiple allocations must be made without being interrupted.
+ * This should be used with the CVMX_BOOTMEM_FLAG_NO_LOCKING flag.
+ *
+ */
+void cvmx_bootmem_lock(void);
+
+/**
+ * Unlocks the bootmem allocator. This is useful in certain situations
+ * where multiple allocations must be made without being interrupted.
+ * This should be used with the CVMX_BOOTMEM_FLAG_NO_LOCKING flag.
+ *
+ */
+void cvmx_bootmem_unlock(void);
+
+/**
+ * Internal use function to get the current descriptor pointer
+ */
+void *__cvmx_bootmem_internal_get_desc_ptr(void);
+
+/**
+ * Internal use. This is userd to get a pointer to a physical
+ * address. For linux n32 the physical address in mmaped to a virtual
+ * address and the virtual address is returned. For n64 the address
+ * is converted to an xkphys address and the xkhpys address is
+ * returned.
+ */
+void *__cvmx_phys_addr_to_ptr(u64 phys, int size);
+const struct cvmx_bootmem_named_block_desc *
+__cvmx_bootmem_find_named_block_flags(const char *name, u32 flags);
+void *cvmx_bootmem_alloc_named_range_flags(u64 size, u64 min_addr,
+ u64 max_addr, u64 align,
+ const char *name, u32 flags);
+u64 cvmx_bootmem_phy_alloc_range(u64 size, u64 alignment,
+ u64 min_addr, u64 max_addr);
+
+#endif /* __CVMX_BOOTMEM_H__ */
--
2.28.0
More information about the U-Boot
mailing list