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1b491eead5
found using codespell (https://github.com/codespell-project/codespell). Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: I1bfa797e3460adddeefa916bb68e22beddaf6373
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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* Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <arch_helpers.h>
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#include <common/debug.h>
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#include <drivers/arm/css/scmi.h>
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#include "scmi_private.h"
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#include "scmi_sq.h"
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#include <sq_common.h>
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/* SCMI message ID to get the available DRAM region */
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#define SCMI_VENDOR_EXT_MEMINFO_GET_MSG 0x3
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#define SCMI_VENDOR_EXT_MEMINFO_GET_MSG_LEN 4
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/*
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* API to get the available DRAM region
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*/
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int scmi_get_draminfo(void *p, struct draminfo *info)
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{
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mailbox_mem_t *mbx_mem;
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int token = 0, ret;
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scmi_channel_t *ch = (scmi_channel_t *)p;
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struct dram_info_resp response;
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validate_scmi_channel(ch);
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scmi_get_channel(ch);
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mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
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mbx_mem->msg_header = SCMI_MSG_CREATE(SCMI_SYS_VENDOR_EXT_PROTO_ID,
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SCMI_VENDOR_EXT_MEMINFO_GET_MSG, token);
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mbx_mem->len = SCMI_VENDOR_EXT_MEMINFO_GET_MSG_LEN;
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mbx_mem->flags = SCMI_FLAG_RESP_POLL;
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scmi_send_sync_command(ch);
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/*
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* Ensure that any read to the SCPI payload area is done after reading
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* the MHU register. If these 2 reads were reordered then the CPU would
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* read invalid payload data
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*/
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dmbld();
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/* Get the return values */
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SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
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memcpy(&response, (void *)mbx_mem->payload, sizeof(response));
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scmi_put_channel(ch);
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*info = response.info;
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return ret;
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}
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