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Revert "MIPS: octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32"

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This reverts commit e98b461bb0.

We actually have been using the CONFIG_CAVIUM_RESERVE32 and previous patch
defined it in the corresponding Kconfig.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Alexander Sverdlin 2022-07-25 11:17:40 +02:00 committed by Thomas Bogendoerfer
parent 3e3114ac46
commit 534ea58b3c
2 changed files with 54 additions and 5 deletions
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21
arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c
View file

@ -57,14 +57,27 @@ EXPORT_SYMBOL_GPL(__cvmx_cmd_queue_state_ptr);
static cvmx_cmd_queue_result_t __cvmx_cmd_queue_init_state_ptr(void)
{
char *alloc_name = "cvmx_cmd_queues";
#if defined(CONFIG_CAVIUM_RESERVE32) && CONFIG_CAVIUM_RESERVE32
extern uint64_t octeon_reserve32_memory;
#endif
if (likely(__cvmx_cmd_queue_state_ptr))
return CVMX_CMD_QUEUE_SUCCESS;
__cvmx_cmd_queue_state_ptr =
cvmx_bootmem_alloc_named(sizeof(*__cvmx_cmd_queue_state_ptr),
128,
alloc_name);
#if defined(CONFIG_CAVIUM_RESERVE32) && CONFIG_CAVIUM_RESERVE32
if (octeon_reserve32_memory)
__cvmx_cmd_queue_state_ptr =
cvmx_bootmem_alloc_named_range(sizeof(*__cvmx_cmd_queue_state_ptr),
octeon_reserve32_memory,
octeon_reserve32_memory +
(CONFIG_CAVIUM_RESERVE32 <<
20) - 1, 128, alloc_name);
else
#endif
__cvmx_cmd_queue_state_ptr =
cvmx_bootmem_alloc_named(sizeof(*__cvmx_cmd_queue_state_ptr),
128,
alloc_name);
if (__cvmx_cmd_queue_state_ptr)
memset(__cvmx_cmd_queue_state_ptr, 0,
sizeof(*__cvmx_cmd_queue_state_ptr));

38
arch/mips/cavium-octeon/setup.c
View file

@ -284,6 +284,11 @@ void octeon_crash_smp_send_stop(void)
#endif /* CONFIG_KEXEC */
#ifdef CONFIG_CAVIUM_RESERVE32
uint64_t octeon_reserve32_memory;
EXPORT_SYMBOL(octeon_reserve32_memory);
#endif
#ifdef CONFIG_KEXEC
/* crashkernel cmdline parameter is parsed _after_ memory setup
* we also parse it here (workaround for EHB5200) */
@ -661,7 +666,9 @@ void __init prom_init(void)
int i;
u64 t;
int argc;
#ifdef CONFIG_CAVIUM_RESERVE32
int64_t addr = -1;
#endif
/*
* The bootloader passes a pointer to the boot descriptor in
* $a3, this is available as fw_arg3.
@ -776,6 +783,25 @@ void __init prom_init(void)
cvmx_write_csr(CVMX_LED_UDD_DATX(1), 0);
cvmx_write_csr(CVMX_LED_EN, 1);
}
#ifdef CONFIG_CAVIUM_RESERVE32
/*
* We need to temporarily allocate all memory in the reserve32
* region. This makes sure the kernel doesn't allocate this
* memory when it is getting memory from the
* bootloader. Later, after the memory allocations are
* complete, the reserve32 will be freed.
*
* Allocate memory for RESERVED32 aligned on 2MB boundary. This
* is in case we later use hugetlb entries with it.
*/
addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20,
0, 0, 2 << 20,
"CAVIUM_RESERVE32", 0);
if (addr < 0)
pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n");
else
octeon_reserve32_memory = addr;
#endif
#ifdef CONFIG_CAVIUM_OCTEON_LOCK_L2
if (cvmx_read_csr(CVMX_L2D_FUS3) & (3ull << 34)) {
@ -1053,6 +1079,16 @@ void __init plat_mem_setup(void)
cvmx_bootmem_unlock();
#endif /* CONFIG_CRASH_DUMP */
#ifdef CONFIG_CAVIUM_RESERVE32
/*
* Now that we've allocated the kernel memory it is safe to
* free the reserved region. We free it here so that builtin
* drivers can use the memory.
*/
if (octeon_reserve32_memory)
cvmx_bootmem_free_named("CAVIUM_RESERVE32");
#endif /* CONFIG_CAVIUM_RESERVE32 */
if (total == 0)
panic("Unable to allocate memory from "
"cvmx_bootmem_phy_alloc");