mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-25 08:13:20 +02:00
b6db7329f4
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16292 3c298f89-4303-0410-b956-a3cf2f4a3e73
224 lines
7.8 KiB
Diff
224 lines
7.8 KiB
Diff
The MGMT ethernet driver uses these new functions.
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Signed-off-by: David Daney <ddaney@caviumnetworks.com>
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---
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arch/mips/cavium-octeon/executive/cvmx-bootmem.c | 101 ++++++++++++++++++++++
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arch/mips/include/asm/octeon/cvmx-bootmem.h | 85 ++++++++++++++++++
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2 files changed, 186 insertions(+), 0 deletions(-)
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--- a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
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+++ b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
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@@ -97,6 +97,32 @@ void *cvmx_bootmem_alloc(uint64_t size,
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return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
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}
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+void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
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+ uint64_t max_addr, uint64_t align,
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+ char *name)
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+{
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+ int64_t addr;
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+
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+ addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
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+ align, name, 0);
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+ if (addr >= 0)
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+ return cvmx_phys_to_ptr(addr);
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+ else
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+ return NULL;
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+}
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+
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+void *cvmx_bootmem_alloc_named_address(uint64_t size, uint64_t address,
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+ char *name)
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+{
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+ return cvmx_bootmem_alloc_named_range(size, address, address + size,
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+ 0, name);
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+}
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+
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+void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment, char *name)
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+{
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+ return cvmx_bootmem_alloc_named_range(size, 0, 0, alignment, name);
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+}
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+
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int cvmx_bootmem_free_named(char *name)
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{
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return cvmx_bootmem_phy_named_block_free(name, 0);
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@@ -584,3 +610,78 @@ int cvmx_bootmem_phy_named_block_free(ch
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cvmx_bootmem_unlock();
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return named_block_ptr != NULL; /* 0 on failure, 1 on success */
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}
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+
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+int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr,
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+ uint64_t max_addr,
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+ uint64_t alignment,
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+ char *name,
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+ uint32_t flags)
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+{
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+ int64_t addr_allocated;
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+ struct cvmx_bootmem_named_block_desc *named_block_desc_ptr;
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+
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+#ifdef DEBUG
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+ cvmx_dprintf("cvmx_bootmem_phy_named_block_alloc: size: 0x%llx, min: "
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+ "0x%llx, max: 0x%llx, align: 0x%llx, name: %s\n",
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+ (unsigned long long)size,
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+ (unsigned long long)min_addr,
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+ (unsigned long long)max_addr,
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+ (unsigned long long)alignment,
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+ name);
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+#endif
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+ if (cvmx_bootmem_desc->major_version != 3) {
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+ cvmx_dprintf("ERROR: Incompatible bootmem descriptor version: "
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+ "%d.%d at addr: %p\n",
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+ (int)cvmx_bootmem_desc->major_version,
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+ (int)cvmx_bootmem_desc->minor_version,
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+ cvmx_bootmem_desc);
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+ return -1;
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+ }
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+
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+ /*
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+ * Take lock here, as name lookup/block alloc/name add need to
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+ * be atomic.
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+ */
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+ if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
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+ cvmx_spinlock_lock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock));
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+
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+ /* Get pointer to first available named block descriptor */
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+ named_block_desc_ptr =
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+ cvmx_bootmem_phy_named_block_find(NULL,
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+ flags | CVMX_BOOTMEM_FLAG_NO_LOCKING);
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+
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+ /*
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+ * Check to see if name already in use, return error if name
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+ * not available or no more room for blocks.
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+ */
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+ if (cvmx_bootmem_phy_named_block_find(name,
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+ flags | CVMX_BOOTMEM_FLAG_NO_LOCKING) || !named_block_desc_ptr) {
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+ if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
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+ cvmx_spinlock_unlock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock));
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+ return -1;
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+ }
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+
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+
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+ /*
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+ * Round size up to mult of minimum alignment bytes We need
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+ * the actual size allocated to allow for blocks to be
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+ * coallesced when they are freed. The alloc routine does the
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+ * same rounding up on all allocations.
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+ */
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+ size = __ALIGN_MASK(size, (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1));
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+
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+ addr_allocated = cvmx_bootmem_phy_alloc(size, min_addr, max_addr,
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+ alignment,
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+ flags | CVMX_BOOTMEM_FLAG_NO_LOCKING);
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+ if (addr_allocated >= 0) {
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+ named_block_desc_ptr->base_addr = addr_allocated;
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+ named_block_desc_ptr->size = size;
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+ strncpy(named_block_desc_ptr->name, name,
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+ cvmx_bootmem_desc->named_block_name_len);
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+ named_block_desc_ptr->name[cvmx_bootmem_desc->named_block_name_len - 1] = 0;
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+ }
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+
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+ if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
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+ cvmx_spinlock_unlock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock));
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+ return addr_allocated;
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+}
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--- a/arch/mips/include/asm/octeon/cvmx-bootmem.h
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+++ b/arch/mips/include/asm/octeon/cvmx-bootmem.h
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@@ -183,6 +183,64 @@ extern void *cvmx_bootmem_alloc_range(ui
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* Returns 0 on failure,
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* !0 on success
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*/
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+
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+
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+/**
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+ * Allocate a block of memory from the free list that was passed
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+ * to the application by the bootloader, and assign it a name in the
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+ * global named block table. (part of the cvmx_bootmem_descriptor_t structure)
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+ * Named blocks can later be freed.
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+ *
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+ * @size: Size in bytes of block to allocate
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+ * @alignment: Alignment required - must be power of 2
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+ * @name: name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
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+ *
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+ * Returns a pointer to block of memory, NULL on error
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+ */
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+extern void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment,
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+ char *name);
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+
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+
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+
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+/**
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+ * Allocate a block of memory from the free list that was passed
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+ * to the application by the bootloader, and assign it a name in the
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+ * global named block table. (part of the cvmx_bootmem_descriptor_t structure)
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+ * Named blocks can later be freed.
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+ *
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+ * @size: Size in bytes of block to allocate
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+ * @address: Physical address to allocate memory at. If this
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+ * memory is not available, the allocation fails.
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+ * @name: name of block - must be less than CVMX_BOOTMEM_NAME_LEN
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+ * bytes
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+ *
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+ * Returns a pointer to block of memory, NULL on error
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+ */
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+extern void *cvmx_bootmem_alloc_named_address(uint64_t size, uint64_t address,
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+ char *name);
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+
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+
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+
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+/**
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+ * Allocate a block of memory from a specific range of the free list
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+ * that was passed to the application by the bootloader, and assign it
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+ * a name in the global named block table. (part of the
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+ * cvmx_bootmem_descriptor_t structure) Named blocks can later be
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+ * freed. If request cannot be satisfied within the address range
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+ * specified, NULL is returned
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+ *
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+ * @size: Size in bytes of block to allocate
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+ * @min_addr: minimum address of range
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+ * @max_addr: maximum address of range
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+ * @align: Alignment of memory to be allocated. (must be a power of 2)
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+ * @name: name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
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+ *
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+ * Returns a pointer to block of memory, NULL on error
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+ */
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+extern void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
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+ uint64_t max_addr, uint64_t align,
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+ char *name);
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+
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extern int cvmx_bootmem_free_named(char *name);
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/**
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@@ -224,6 +282,33 @@ int64_t cvmx_bootmem_phy_alloc(uint64_t
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uint32_t flags);
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/**
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+ * Allocates a named block of physical memory from the free list, at
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+ * (optional) requested address and alignment.
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+ *
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+ * @param size size of region to allocate. All requests are rounded
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+ * up to be a multiple CVMX_BOOTMEM_ALIGNMENT_SIZE
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+ * bytes size
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+ * @param min_addr Minimum address that block can occupy.
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+ * @param max_addr Specifies the maximum address_min (inclusive) that
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+ * the allocation can use.
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+ * @param alignment Requested alignment of the block. If this
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+ * alignment cannot be met, the allocation fails.
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+ * This must be a power of 2. (Note: Alignment of
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+ * CVMX_BOOTMEM_ALIGNMENT_SIZE bytes is required, and
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+ * internally enforced. Requested alignments of less
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+ * than CVMX_BOOTMEM_ALIGNMENT_SIZE are set to
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+ * CVMX_BOOTMEM_ALIGNMENT_SIZE.)
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+ * @param name name to assign to named block
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+ * @param flags Flags to control options for the allocation.
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+ *
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+ * @return physical address of block allocated, or -1 on failure
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+ */
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+int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr,
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+ uint64_t max_addr,
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+ uint64_t alignment,
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+ char *name, uint32_t flags);
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+
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+/**
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* Finds a named memory block by name.
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* Also used for finding an unused entry in the named block table.
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*
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