video-driver: Move firmware code out of venus hfi
All firmware related code is moved into a firmware file. This is part of cleanup of venus_hfi. Change-Id: Ie915e47644dbbbe73c941488fff6db6e40160b90 Signed-off-by: Stanimir Varbanov <quic_c_svarba@quicinc.com>
This commit is contained in:
Stanimir Varbanov
committed by
Gerrit - the friendly Code Review server
Gerrit - the friendly Code Review server
parent
8b003fb153
commit
cf7b4f85c9
1
Kbuild
1
Kbuild
@@ -68,6 +68,7 @@ msm_video-objs += driver/vidc/src/msm_vidc_v4l2.o \
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driver/vidc/src/msm_vidc_probe.o \
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driver/vidc/src/msm_vidc_dt.o \
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driver/vidc/src/resources.o \
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driver/vidc/src/firmware.o \
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driver/vidc/src/msm_vidc_debug.o \
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driver/vidc/src/msm_vidc_memory.o \
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driver/vidc/src/msm_vidc_fence.o \
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16
driver/vidc/inc/firmware.h
Normal file
16
driver/vidc/inc/firmware.h
Normal file
@@ -0,0 +1,16 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2022, The Linux Foundation. All rights reserved.
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*/
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#ifndef _MSM_VIDC_FIRMWARE_H_
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#define _MSM_VIDC_FIRMWARE_H_
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struct msm_vidc_core;
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int fw_load(struct msm_vidc_core *core);
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int fw_unload(struct msm_vidc_core *core);
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int fw_suspend(struct msm_vidc_core *core);
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int fw_resume(struct msm_vidc_core *core);
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#endif
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235
driver/vidc/src/firmware.c
Normal file
235
driver/vidc/src/firmware.c
Normal file
@@ -0,0 +1,235 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2022. Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/of_address.h>
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#include <linux/firmware.h>
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#include <linux/qcom_scm.h>
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#include <linux/soc/qcom/mdt_loader.h>
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#include <linux/soc/qcom/smem.h>
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#include "msm_vidc_core.h"
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#include "msm_vidc_debug.h"
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#include "msm_vidc_dt.h"
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#include "msm_vidc_events.h"
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#include "firmware.h"
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#define MAX_FIRMWARE_NAME_SIZE 128
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struct tzbsp_memprot {
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u32 cp_start;
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u32 cp_size;
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u32 cp_nonpixel_start;
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u32 cp_nonpixel_size;
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};
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enum tzbsp_video_state {
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TZBSP_VIDEO_STATE_SUSPEND = 0,
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TZBSP_VIDEO_STATE_RESUME = 1,
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TZBSP_VIDEO_STATE_RESTORE_THRESHOLD = 2,
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};
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static int protect_cp_mem(struct msm_vidc_core *core)
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{
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struct tzbsp_memprot memprot;
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int rc = 0;
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struct context_bank_info *cb;
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if (!core)
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return -EINVAL;
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memprot.cp_start = 0x0;
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memprot.cp_size = 0x0;
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memprot.cp_nonpixel_start = 0x0;
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memprot.cp_nonpixel_size = 0x0;
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list_for_each_entry(cb, &core->dt->context_banks, list) {
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if (!strcmp(cb->name, "venus_ns")) {
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memprot.cp_size = cb->addr_range.start;
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d_vpr_h("%s: memprot.cp_size: %#x\n",
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__func__, memprot.cp_size);
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}
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if (!strcmp(cb->name, "venus_sec_non_pixel")) {
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memprot.cp_nonpixel_start = cb->addr_range.start;
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memprot.cp_nonpixel_size = cb->addr_range.size;
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d_vpr_h("%s: cp_nonpixel_start: %#x size: %#x\n",
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__func__, memprot.cp_nonpixel_start,
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memprot.cp_nonpixel_size);
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}
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}
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rc = qcom_scm_mem_protect_video_var(memprot.cp_start, memprot.cp_size,
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memprot.cp_nonpixel_start, memprot.cp_nonpixel_size);
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if (rc)
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d_vpr_e("Failed to protect memory(%d)\n", rc);
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trace_venus_hfi_var_done(
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memprot.cp_start, memprot.cp_size,
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memprot.cp_nonpixel_start, memprot.cp_nonpixel_size);
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return rc;
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}
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static int __load_fw_to_memory(struct platform_device *pdev,
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const char *fw_name)
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{
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int rc = 0;
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const struct firmware *firmware = NULL;
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char firmware_name[MAX_FIRMWARE_NAME_SIZE] = { 0 };
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struct device_node *node = NULL;
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struct resource res = { 0 };
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phys_addr_t phys = 0;
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size_t res_size = 0;
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ssize_t fw_size = 0;
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void *virt = NULL;
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int pas_id = 0;
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if (!fw_name || !(*fw_name) || !pdev) {
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d_vpr_e("%s: Invalid inputs\n", __func__);
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return -EINVAL;
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}
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if (strlen(fw_name) >= MAX_FIRMWARE_NAME_SIZE - 4) {
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d_vpr_e("%s: Invalid fw name\n", __func__);
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return -EINVAL;
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}
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scnprintf(firmware_name, ARRAY_SIZE(firmware_name), "%s.mbn", fw_name);
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rc = of_property_read_u32(pdev->dev.of_node, "pas-id", &pas_id);
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if (rc) {
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d_vpr_e("%s: failed to read \"pas-id\". error %d\n",
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__func__, rc);
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goto exit;
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}
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node = of_parse_phandle(pdev->dev.of_node, "memory-region", 0);
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if (!node) {
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d_vpr_e("%s: failed to read \"memory-region\"\n",
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__func__);
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return -EINVAL;
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}
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rc = of_address_to_resource(node, 0, &res);
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if (rc) {
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d_vpr_e("%s: failed to read \"memory-region\", error %d\n",
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__func__, rc);
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goto exit;
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}
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phys = res.start;
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res_size = (size_t)resource_size(&res);
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rc = request_firmware(&firmware, firmware_name, &pdev->dev);
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if (rc) {
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d_vpr_e("%s: failed to request fw \"%s\", error %d\n",
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__func__, firmware_name, rc);
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goto exit;
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}
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fw_size = qcom_mdt_get_size(firmware);
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if (fw_size < 0 || res_size < (size_t)fw_size) {
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rc = -EINVAL;
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d_vpr_e("%s: out of bound fw image fw size: %ld, res_size: %lu",
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__func__, fw_size, res_size);
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goto exit;
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}
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virt = memremap(phys, res_size, MEMREMAP_WC);
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if (!virt) {
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d_vpr_e("%s: failed to remap fw memory phys %pa[p]\n",
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__func__, phys);
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return -ENOMEM;
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}
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/* prevent system suspend during fw_load */
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pm_stay_awake(pdev->dev.parent);
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rc = qcom_mdt_load(&pdev->dev, firmware, firmware_name,
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pas_id, virt, phys, res_size, NULL);
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pm_relax(pdev->dev.parent);
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if (rc) {
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d_vpr_e("%s: error %d loading fw \"%s\"\n",
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__func__, rc, firmware_name);
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goto exit;
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}
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rc = qcom_scm_pas_auth_and_reset(pas_id);
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if (rc) {
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d_vpr_e("%s: error %d authenticating fw \"%s\"\n",
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__func__, rc, firmware_name);
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goto exit;
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}
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memunmap(virt);
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release_firmware(firmware);
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d_vpr_h("%s: firmware \"%s\" loaded successfully\n",
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__func__, firmware_name);
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return pas_id;
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exit:
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if (virt)
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memunmap(virt);
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if (firmware)
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release_firmware(firmware);
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return rc;
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}
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int fw_load(struct msm_vidc_core *core)
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{
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int rc;
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if (!core->dt->fw_cookie) {
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core->dt->fw_cookie = __load_fw_to_memory(core->pdev,
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core->dt->fw_name);
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if (core->dt->fw_cookie <= 0) {
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d_vpr_e("%s: firmware download failed %d\n",
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__func__, core->dt->fw_cookie);
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core->dt->fw_cookie = 0;
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return -ENOMEM;
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}
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}
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rc = protect_cp_mem(core);
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if (rc) {
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d_vpr_e("%s: protect memory failed\n", __func__);
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goto fail_protect_mem;
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}
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return rc;
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fail_protect_mem:
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if (core->dt->fw_cookie)
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qcom_scm_pas_shutdown(core->dt->fw_cookie);
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core->dt->fw_cookie = 0;
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return rc;
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}
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int fw_unload(struct msm_vidc_core *core)
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{
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int ret;
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if (!core->dt->fw_cookie)
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return -EINVAL;
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ret = qcom_scm_pas_shutdown(core->dt->fw_cookie);
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if (ret)
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d_vpr_e("Firmware unload failed rc=%d\n", ret);
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core->dt->fw_cookie = 0;
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return ret;
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}
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int fw_suspend(struct msm_vidc_core *core)
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{
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return qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0);
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}
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int fw_resume(struct msm_vidc_core *core)
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{
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return qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_RESUME, 0);
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}
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@@ -26,8 +26,7 @@
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#include "venus_hfi_response.h"
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#include "venus_hfi_queue.h"
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#include "msm_vidc_events.h"
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#define MAX_FIRMWARE_NAME_SIZE 128
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#include "firmware.h"
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#define update_offset(offset, val) ((offset) += (val))
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#define update_timestamp(ts, val) \
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@@ -42,19 +41,6 @@ extern struct msm_vidc_core *g_core;
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static int __resume(struct msm_vidc_core *core);
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static int __suspend(struct msm_vidc_core *core);
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struct tzbsp_memprot {
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u32 cp_start;
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u32 cp_size;
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u32 cp_nonpixel_start;
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u32 cp_nonpixel_size;
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};
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enum tzbsp_video_state {
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TZBSP_VIDEO_STATE_SUSPEND = 0,
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TZBSP_VIDEO_STATE_RESUME = 1,
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TZBSP_VIDEO_STATE_RESTORE_THRESHOLD = 2,
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};
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/**
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* Utility function to enforce some of our assumptions. Spam calls to this
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* in hotspots in code to double check some of the assumptions that we hold.
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@@ -351,20 +337,6 @@ static void __cancel_power_collapse_work(struct msm_vidc_core *core)
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cancel_delayed_work(&core->pm_work);
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}
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static int __tzbsp_set_video_state(enum tzbsp_video_state state)
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{
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int tzbsp_rsp = qcom_scm_set_remote_state(state, 0);
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d_vpr_l("Set state %d, resp %d\n", state, tzbsp_rsp);
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if (tzbsp_rsp) {
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d_vpr_e("Failed to set video core state to suspend: %d\n",
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tzbsp_rsp);
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return -EINVAL;
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}
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return 0;
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}
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static void __flush_debug_queue(struct msm_vidc_core *core,
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u8 *packet, u32 packet_size)
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{
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@@ -571,51 +543,6 @@ skip_power_off:
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return -EAGAIN;
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}
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static int __protect_cp_mem(struct msm_vidc_core *core)
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{
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struct tzbsp_memprot memprot;
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int rc = 0;
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struct context_bank_info *cb;
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if (!core)
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return -EINVAL;
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memprot.cp_start = 0x0;
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memprot.cp_size = 0x0;
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memprot.cp_nonpixel_start = 0x0;
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memprot.cp_nonpixel_size = 0x0;
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list_for_each_entry(cb, &core->dt->context_banks, list) {
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if (!strcmp(cb->name, "venus_ns")) {
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memprot.cp_size = cb->addr_range.start;
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d_vpr_h("%s: memprot.cp_size: %#x\n",
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__func__, memprot.cp_size);
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}
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if (!strcmp(cb->name, "venus_sec_non_pixel")) {
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memprot.cp_nonpixel_start = cb->addr_range.start;
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memprot.cp_nonpixel_size = cb->addr_range.size;
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d_vpr_h("%s: cp_nonpixel_start: %#x size: %#x\n",
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__func__, memprot.cp_nonpixel_start,
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memprot.cp_nonpixel_size);
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}
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}
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rc = qcom_scm_mem_protect_video_var(memprot.cp_start, memprot.cp_size,
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memprot.cp_nonpixel_start, memprot.cp_nonpixel_size);
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if (rc)
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d_vpr_e("Failed to protect memory(%d)\n", rc);
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trace_venus_hfi_var_done(
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memprot.cp_start, memprot.cp_size,
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memprot.cp_nonpixel_start, memprot.cp_nonpixel_size);
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return rc;
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}
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#if 0 // TODO
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static int __core_set_resource(struct msm_vidc_core *core,
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struct vidc_resource_hdr *resource_hdr, void *resource_value)
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@@ -874,7 +801,7 @@ static int __suspend(struct msm_vidc_core *core)
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d_vpr_h("Entering suspend\n");
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rc = __tzbsp_set_video_state(TZBSP_VIDEO_STATE_SUSPEND);
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rc = fw_suspend(core);
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if (rc) {
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d_vpr_e("Failed to suspend video core %d\n", rc);
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goto err_tzbsp_suspend;
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@@ -920,7 +847,7 @@ static int __resume(struct msm_vidc_core *core)
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}
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/* Reboot the firmware */
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rc = __tzbsp_set_video_state(TZBSP_VIDEO_STATE_RESUME);
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rc = fw_resume(core);
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if (rc) {
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d_vpr_e("Failed to resume video core %d\n", rc);
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goto err_set_video_state;
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@@ -964,7 +891,7 @@ exit:
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// core->skip_pc_count = 0;
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return rc;
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err_reset_core:
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__tzbsp_set_video_state(TZBSP_VIDEO_STATE_SUSPEND);
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fw_suspend(core);
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err_set_video_state:
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__venus_power_off(core);
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err_venus_power_on:
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@@ -972,108 +899,6 @@ err_venus_power_on:
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return rc;
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}
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static int __load_fw_to_memory(struct platform_device *pdev,
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const char *fw_name)
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{
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int rc = 0;
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const struct firmware *firmware = NULL;
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char firmware_name[MAX_FIRMWARE_NAME_SIZE] = { 0 };
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struct device_node *node = NULL;
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struct resource res = { 0 };
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phys_addr_t phys = 0;
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size_t res_size = 0;
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ssize_t fw_size = 0;
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void *virt = NULL;
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int pas_id = 0;
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if (!fw_name || !(*fw_name) || !pdev) {
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d_vpr_e("%s: Invalid inputs\n", __func__);
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return -EINVAL;
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}
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if (strlen(fw_name) >= MAX_FIRMWARE_NAME_SIZE - 4) {
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d_vpr_e("%s: Invalid fw name\n", __func__);
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return -EINVAL;
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}
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scnprintf(firmware_name, ARRAY_SIZE(firmware_name), "%s.mbn", fw_name);
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rc = of_property_read_u32(pdev->dev.of_node, "pas-id", &pas_id);
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if (rc) {
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d_vpr_e("%s: failed to read \"pas-id\". error %d\n",
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__func__, rc);
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goto exit;
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}
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node = of_parse_phandle(pdev->dev.of_node, "memory-region", 0);
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if (!node) {
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d_vpr_e("%s: failed to read \"memory-region\"\n",
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__func__);
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return -EINVAL;
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}
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rc = of_address_to_resource(node, 0, &res);
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if (rc) {
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d_vpr_e("%s: failed to read \"memory-region\", error %d\n",
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__func__, rc);
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goto exit;
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}
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phys = res.start;
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res_size = (size_t)resource_size(&res);
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rc = request_firmware(&firmware, firmware_name, &pdev->dev);
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if (rc) {
|
||||
d_vpr_e("%s: failed to request fw \"%s\", error %d\n",
|
||||
__func__, firmware_name, rc);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
fw_size = qcom_mdt_get_size(firmware);
|
||||
if (fw_size < 0 || res_size < (size_t)fw_size) {
|
||||
rc = -EINVAL;
|
||||
d_vpr_e("%s: out of bound fw image fw size: %ld, res_size: %lu",
|
||||
__func__, fw_size, res_size);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
virt = memremap(phys, res_size, MEMREMAP_WC);
|
||||
if (!virt) {
|
||||
d_vpr_e("%s: failed to remap fw memory phys %pa[p]\n",
|
||||
__func__, phys);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* prevent system suspend during fw_load */
|
||||
pm_stay_awake(pdev->dev.parent);
|
||||
rc = qcom_mdt_load(&pdev->dev, firmware, firmware_name,
|
||||
pas_id, virt, phys, res_size, NULL);
|
||||
pm_relax(pdev->dev.parent);
|
||||
if (rc) {
|
||||
d_vpr_e("%s: error %d loading fw \"%s\"\n",
|
||||
__func__, rc, firmware_name);
|
||||
goto exit;
|
||||
}
|
||||
rc = qcom_scm_pas_auth_and_reset(pas_id);
|
||||
if (rc) {
|
||||
d_vpr_e("%s: error %d authenticating fw \"%s\"\n",
|
||||
__func__, rc, firmware_name);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
memunmap(virt);
|
||||
release_firmware(firmware);
|
||||
d_vpr_h("%s: firmware \"%s\" loaded successfully\n",
|
||||
__func__, firmware_name);
|
||||
|
||||
return pas_id;
|
||||
|
||||
exit:
|
||||
if (virt)
|
||||
memunmap(virt);
|
||||
if (firmware)
|
||||
release_firmware(firmware);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
int __load_fw(struct msm_vidc_core *core)
|
||||
{
|
||||
const struct msm_vidc_resources_ops *res_ops = core->res_ops;
|
||||
@@ -1097,23 +922,9 @@ int __load_fw(struct msm_vidc_core *core)
|
||||
goto fail_venus_power_on;
|
||||
}
|
||||
|
||||
if (!core->dt->fw_cookie) {
|
||||
core->dt->fw_cookie = __load_fw_to_memory(core->pdev,
|
||||
core->dt->fw_name);
|
||||
if (core->dt->fw_cookie <= 0) {
|
||||
d_vpr_e("%s: firmware download failed %d\n",
|
||||
__func__, core->dt->fw_cookie);
|
||||
core->dt->fw_cookie = 0;
|
||||
rc = -ENOMEM;
|
||||
goto fail_load_fw;
|
||||
}
|
||||
}
|
||||
|
||||
rc = __protect_cp_mem(core);
|
||||
if (rc) {
|
||||
d_vpr_e("%s: protect memory failed\n", __func__);
|
||||
goto fail_protect_mem;
|
||||
}
|
||||
rc = fw_load(core);
|
||||
if (rc)
|
||||
goto fail_load_fw;
|
||||
|
||||
/*
|
||||
* Hand off control of regulators to h/w _after_ loading fw.
|
||||
@@ -1125,10 +936,6 @@ int __load_fw(struct msm_vidc_core *core)
|
||||
trace_msm_v4l2_vidc_fw_load("END");
|
||||
|
||||
return rc;
|
||||
fail_protect_mem:
|
||||
if (core->dt->fw_cookie)
|
||||
qcom_scm_pas_shutdown(core->dt->fw_cookie);
|
||||
core->dt->fw_cookie = 0;
|
||||
fail_load_fw:
|
||||
__venus_power_off(core);
|
||||
fail_venus_power_on:
|
||||
@@ -1147,12 +954,7 @@ void __unload_fw(struct msm_vidc_core *core)
|
||||
return;
|
||||
|
||||
cancel_delayed_work(&core->pm_work);
|
||||
rc = qcom_scm_pas_shutdown(core->dt->fw_cookie);
|
||||
if (rc)
|
||||
d_vpr_e("Firmware unload failed rc=%d\n", rc);
|
||||
|
||||
core->dt->fw_cookie = 0;
|
||||
|
||||
rc = fw_unload(core);
|
||||
__venus_power_off(core);
|
||||
res_ops->put(core);
|
||||
|
||||
|
||||
Reference in New Issue
Block a user