mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 08:21:36 +01:00
bec3f378e5
Import cvmx-range.c from 2013 U-Boot. It will be used by the later added drivers to support networking on the MIPS Octeon II / III platforms. Signed-off-by: Aaron Williams <awilliams@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>
260 lines
6.2 KiB
C
260 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2018-2022 Marvell International Ltd.
|
|
*/
|
|
|
|
#include <log.h>
|
|
#include <time.h>
|
|
#include <linux/delay.h>
|
|
|
|
#include <mach/cvmx-regs.h>
|
|
#include <mach/cvmx-csr.h>
|
|
#include <mach/cvmx-bootmem.h>
|
|
#include <mach/octeon-model.h>
|
|
#include <mach/cvmx-fuse.h>
|
|
#include <mach/octeon-feature.h>
|
|
#include <mach/cvmx-qlm.h>
|
|
#include <mach/octeon_qlm.h>
|
|
#include <mach/cvmx-pcie.h>
|
|
#include <mach/cvmx-coremask.h>
|
|
|
|
#include <mach/cvmx-global-resources.h>
|
|
|
|
#include <mach/cvmx-pki.h>
|
|
#include <mach/cvmx-helper.h>
|
|
#include <mach/cvmx-helper-board.h>
|
|
#include <mach/cvmx-helper-cfg.h>
|
|
|
|
#include <mach/cvmx-range.h>
|
|
|
|
#define CVMX_RANGE_AVAILABLE ((u64)-88)
|
|
#define addr_of_element(base, index) \
|
|
(1ull << 63 | ((base) + sizeof(u64) + (index) * sizeof(u64)))
|
|
#define addr_of_size(base) (1ull << 63 | (base))
|
|
|
|
static const int debug;
|
|
|
|
int cvmx_range_memory_size(int nelements)
|
|
{
|
|
return sizeof(u64) * (nelements + 1);
|
|
}
|
|
|
|
int cvmx_range_init(u64 range_addr, int size)
|
|
{
|
|
u64 lsize = size;
|
|
u64 i;
|
|
|
|
cvmx_write64_uint64(addr_of_size(range_addr), lsize);
|
|
for (i = 0; i < lsize; i++) {
|
|
cvmx_write64_uint64(addr_of_element(range_addr, i),
|
|
CVMX_RANGE_AVAILABLE);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int64_t cvmx_range_find_next_available(u64 range_addr, u64 index,
|
|
int align)
|
|
{
|
|
u64 size = cvmx_read64_uint64(addr_of_size(range_addr));
|
|
u64 i;
|
|
|
|
while ((index % align) != 0)
|
|
index++;
|
|
|
|
for (i = index; i < size; i += align) {
|
|
u64 r_owner = cvmx_read64_uint64(addr_of_element(range_addr, i));
|
|
|
|
if (debug)
|
|
debug("%s: index=%d owner=%llx\n", __func__, (int)i,
|
|
(unsigned long long)r_owner);
|
|
if (r_owner == CVMX_RANGE_AVAILABLE)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int64_t cvmx_range_find_last_available(u64 range_addr, u64 index,
|
|
u64 align)
|
|
{
|
|
u64 size = cvmx_read64_uint64(addr_of_size(range_addr));
|
|
u64 i;
|
|
|
|
if (index == 0)
|
|
index = size - 1;
|
|
|
|
while ((index % align) != 0)
|
|
index++;
|
|
|
|
for (i = index; i > align; i -= align) {
|
|
u64 r_owner = cvmx_read64_uint64(addr_of_element(range_addr, i));
|
|
|
|
if (debug)
|
|
debug("%s: index=%d owner=%llx\n", __func__, (int)i,
|
|
(unsigned long long)r_owner);
|
|
if (r_owner == CVMX_RANGE_AVAILABLE)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int cvmx_range_alloc_ordered(u64 range_addr, u64 owner, u64 cnt,
|
|
int align, int reverse)
|
|
{
|
|
u64 i = 0, size;
|
|
s64 first_available;
|
|
|
|
if (debug)
|
|
debug("%s: range_addr=%llx owner=%llx cnt=%d\n", __func__,
|
|
(unsigned long long)range_addr,
|
|
(unsigned long long)owner, (int)cnt);
|
|
|
|
size = cvmx_read64_uint64(addr_of_size(range_addr));
|
|
while (i < size) {
|
|
u64 available_cnt = 0;
|
|
|
|
if (reverse)
|
|
first_available = cvmx_range_find_last_available(range_addr, i, align);
|
|
else
|
|
first_available = cvmx_range_find_next_available(range_addr, i, align);
|
|
if (first_available == -1)
|
|
return -1;
|
|
i = first_available;
|
|
|
|
if (debug)
|
|
debug("%s: first_available=%d\n", __func__, (int)first_available);
|
|
while ((available_cnt != cnt) && (i < size)) {
|
|
u64 r_owner = cvmx_read64_uint64(addr_of_element(range_addr, i));
|
|
|
|
if (r_owner == CVMX_RANGE_AVAILABLE)
|
|
available_cnt++;
|
|
i++;
|
|
}
|
|
if (available_cnt == cnt) {
|
|
u64 j;
|
|
|
|
if (debug)
|
|
debug("%s: first_available=%d available=%d\n",
|
|
__func__,
|
|
(int)first_available, (int)available_cnt);
|
|
|
|
for (j = first_available; j < first_available + cnt;
|
|
j++) {
|
|
u64 a = addr_of_element(range_addr, j);
|
|
|
|
cvmx_write64_uint64(a, owner);
|
|
}
|
|
return first_available;
|
|
}
|
|
}
|
|
|
|
if (debug) {
|
|
debug("ERROR: %s: failed to allocate range cnt=%d\n",
|
|
__func__, (int)cnt);
|
|
cvmx_range_show(range_addr);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int cvmx_range_alloc(u64 range_addr, u64 owner, u64 cnt, int align)
|
|
{
|
|
return cvmx_range_alloc_ordered(range_addr, owner, cnt, align, 0);
|
|
}
|
|
|
|
int cvmx_range_reserve(u64 range_addr, u64 owner, u64 base,
|
|
u64 cnt)
|
|
{
|
|
u64 i, size, r_owner;
|
|
u64 up = base + cnt;
|
|
|
|
size = cvmx_read64_uint64(addr_of_size(range_addr));
|
|
if (up > size) {
|
|
debug("ERROR: %s: invalid base or cnt. range_addr=0x%llx, owner=0x%llx, size=%d base+cnt=%d\n",
|
|
__func__, (unsigned long long)range_addr,
|
|
(unsigned long long)owner,
|
|
(int)size, (int)up);
|
|
return -1;
|
|
}
|
|
for (i = base; i < up; i++) {
|
|
r_owner = cvmx_read64_uint64(addr_of_element(range_addr, i));
|
|
if (debug)
|
|
debug("%s: %d: %llx\n",
|
|
__func__, (int)i, (unsigned long long)r_owner);
|
|
if (r_owner != CVMX_RANGE_AVAILABLE) {
|
|
if (debug) {
|
|
debug("%s: resource already reserved base+cnt=%d %llu %llu %llx %llx %llx\n",
|
|
__func__, (int)i, (unsigned long long)cnt,
|
|
(unsigned long long)base,
|
|
(unsigned long long)r_owner,
|
|
(unsigned long long)range_addr,
|
|
(unsigned long long)owner);
|
|
}
|
|
return -1;
|
|
}
|
|
}
|
|
for (i = base; i < up; i++)
|
|
cvmx_write64_uint64(addr_of_element(range_addr, i), owner);
|
|
return base;
|
|
}
|
|
|
|
int __cvmx_range_is_allocated(u64 range_addr, int bases[], int count)
|
|
{
|
|
u64 i, cnt, size;
|
|
u64 r_owner;
|
|
|
|
cnt = count;
|
|
size = cvmx_read64_uint64(addr_of_size(range_addr));
|
|
for (i = 0; i < cnt; i++) {
|
|
u64 base = bases[i];
|
|
|
|
if (base >= size) {
|
|
debug("ERROR: %s: invalid base or cnt size=%d base=%d\n",
|
|
__func__, (int)size, (int)base);
|
|
return 0;
|
|
}
|
|
r_owner = cvmx_read64_uint64(addr_of_element(range_addr, base));
|
|
if (r_owner == CVMX_RANGE_AVAILABLE) {
|
|
if (debug) {
|
|
debug("%s: i=%d:base=%d is available\n",
|
|
__func__, (int)i, (int)base);
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int cvmx_range_free_mutiple(u64 range_addr, int bases[], int count)
|
|
{
|
|
u64 i, cnt;
|
|
|
|
cnt = count;
|
|
if (__cvmx_range_is_allocated(range_addr, bases, count) != 1)
|
|
return -1;
|
|
for (i = 0; i < cnt; i++) {
|
|
u64 base = bases[i];
|
|
|
|
cvmx_write64_uint64(addr_of_element(range_addr, base),
|
|
CVMX_RANGE_AVAILABLE);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cvmx_range_free_with_base(u64 range_addr, int base, int cnt)
|
|
{
|
|
u64 i, size;
|
|
u64 up = base + cnt;
|
|
|
|
size = cvmx_read64_uint64(addr_of_size(range_addr));
|
|
if (up > size) {
|
|
debug("ERROR: %s: invalid base or cnt size=%d base+cnt=%d\n",
|
|
__func__, (int)size, (int)up);
|
|
return -1;
|
|
}
|
|
for (i = base; i < up; i++) {
|
|
cvmx_write64_uint64(addr_of_element(range_addr, i),
|
|
CVMX_RANGE_AVAILABLE);
|
|
}
|
|
return 0;
|
|
}
|