/**
* This function fills a hardware pool with memory. Depending
* on the config defines, this memory might come from the
* kernel or global 32bit memory allocated with
* cvmx_bootmem_alloc.
*
* @pool: Pool to populate
* @size: Size of each buffer in the pool
* @elements: Number of buffers to allocate
*/
static int cvm_oct_fill_hw_memory(int pool, int size, int elements)
{
char *memory;
int freed = elements;
if (USE_32BIT_SHARED) {
extern uint64_t octeon_reserve32_memory;
memory =
cvmx_bootmem_alloc_range(elements * size, 128,
octeon_reserve32_memory,
octeon_reserve32_memory +
(CONFIG_CAVIUM_RESERVE32 << 20) -
1);
if (memory == NULL)
panic("Unable to allocate %u bytes for FPA pool %d\n",
elements * size, pool);
pr_notice("Memory range %p - %p reserved for "
"hardware\n", memory,
memory + elements * size - 1);
while (freed) {
cvmx_fpa_free(memory, pool, 0);
memory += size;
freed--;
}
} else {
while (freed) {
/* We need to force alignment to 128 bytes here */
memory = kmalloc(size + 127, GFP_ATOMIC);
if (unlikely(memory == NULL)) {
pr_warning("Unable to allocate %u bytes for "
"FPA pool %d\n",
elements * size, pool);
break;
}
memory = (char *)(((unsigned long)memory + 127) & -128);
cvmx_fpa_free(memory, pool, 0);
freed--;
}
}
return elements - freed;
}
void *cvmx_bootmem_alloc(uint64_t size, uint64_t alignment)
{
return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
}
void *cvmx_bootmem_alloc_address(uint64_t size, uint64_t address, uint64_t alignment)
{
return cvmx_bootmem_alloc_range(size, alignment, address, address + size);
}
