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/* SPDX-License-Identifier: GPL-2.0-only */
#include <cbmem.h>
#include <stage_cache.h>
#include <string.h>
#include <console/console.h>
/* Stage cache uses cbmem. */
void stage_cache_add(int stage_id, const struct prog *stage)
{
struct stage_cache *meta;
void *c;
meta = cbmem_add(CBMEM_ID_STAGEx_META + stage_id, sizeof(*meta));
if (meta == NULL) {
printk(BIOS_ERR, "Error: Can't add %x metadata to cbmem\n",
CBMEM_ID_STAGEx_META + stage_id);
return;
}
meta->load_addr = (uintptr_t)prog_start(stage);
meta->entry_addr = (uintptr_t)prog_entry(stage);
meta->arg = (uintptr_t)prog_entry_arg(stage);
c = cbmem_add(CBMEM_ID_STAGEx_CACHE + stage_id, prog_size(stage));
if (c == NULL) {
printk(BIOS_ERR, "Error: Can't add stage_cache %x to cbmem\n",
CBMEM_ID_STAGEx_CACHE + stage_id);
return;
}
memcpy(c, prog_start(stage), prog_size(stage));
}
void stage_cache_add_raw(int stage_id, const void *base, const size_t size)
{
void *c;
c = cbmem_add(CBMEM_ID_STAGEx_RAW + stage_id, size);
if (c == NULL) {
printk(BIOS_DEBUG, "Error: Can't add %x raw data to cbmem\n",
CBMEM_ID_STAGEx_RAW + stage_id);
return;
}
memcpy(c, base, size);
}
void stage_cache_get_raw(int stage_id, void **base, size_t *size)
{
const struct cbmem_entry *e;
e = cbmem_entry_find(CBMEM_ID_STAGEx_RAW + stage_id);
if (e == NULL) {
printk(BIOS_ERR, "Error: Can't find raw %x data in cbmem\n",
CBMEM_ID_STAGEx_RAW + stage_id);
return;
}
*base = cbmem_entry_start(e);
*size = cbmem_entry_size(e);
}
void stage_cache_load_stage(int stage_id, struct prog *stage)
{
struct stage_cache *meta;
const struct cbmem_entry *e;
void *c;
size_t size;
void *load_addr;
prog_set_entry(stage, NULL, NULL);
meta = cbmem_find(CBMEM_ID_STAGEx_META + stage_id);
if (meta == NULL) {
printk(BIOS_ERR, "Error: Can't find %x metadata in cbmem\n",
CBMEM_ID_STAGEx_META + stage_id);
return;
}
e = cbmem_entry_find(CBMEM_ID_STAGEx_CACHE + stage_id);
if (e == NULL) {
printk(BIOS_ERR, "Error: Can't find stage_cache %x in cbmem\n",
CBMEM_ID_STAGEx_CACHE + stage_id);
return;
}
c = cbmem_entry_start(e);
size = cbmem_entry_size(e);
load_addr = (void *)(uintptr_t)meta->load_addr;
memcpy(load_addr, c, size);
prog_set_area(stage, load_addr, size);
prog_set_entry(stage, (void *)(uintptr_t)meta->entry_addr,
(void *)(uintptr_t)meta->arg);
}
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