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This extends the Qualcomm GLINK implementation to support the additional features used for communicating with modem and DSP coprocessors in modern Qualcomm platforms. In addition to this there's support for placing virtio RPMSG buffers in non-System RAM. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZswd9AAoJEAsfOT8Nma3FSigQALyq2wNtf60tkTKW0f2K8cM6 JpnEKAKqO1t5ZkokEevT05PLT4rqXuidrDVOBJ3VQ7LtSqJOiTjGyN9YM8t+WBVG ts0Yg69+wUxBATg9iM2JiUsKn8gH8swUAtf16dmkL/Ca8BJKOHGYTUjADfwuFrEg EAGcLZnlwz736xdo9qZu/Ke9rItz6CDOD3AphbpJbcv7Wj2F/mEuqMZjfLk+1Mo8 C3wXx9jIzW1siNtT0OY9raUNV5gLaGS2zZ+DYwrwjND7Eh0TqeLxyJ1OS7f2kOZ5 P6zcrYw02WbDVW7LUzVegj5PejZm/wdFZ5hSvishEfZZVT+wGHBK34mfObe0moJZ Wp8jFSXKqECIEU3x/2DtPAHi+mittDpQ3FCkElWKJRD6B3HTySHjvM0lOor+zYKB gRX4QUR6jwkSRAbV6GP24Z8SL9kU6TXOSoOQvuzuKhB30JzADJPuQnGZR0SftYiH YJG/RT9FklbljWP9hIgey3QPNHPoL3IzNBU2iyEjdraabmNaFEb++wpLdpCZdnGf 1HMLrMfUmd3QKRtXvT+5Q6CjnfzwFk1ii1naN3Ky9rar3WRtij5bzo8eveR8i9ag DtWA88N9mnpSUao14o5vKN830q3/fkwW6HyT0nCd59Wq94cMNfiMdFPVXvO0xVAF mjP4JXHbqNhdJySWR4Du =PVGN -----END PGP SIGNATURE----- Merge tag 'rpmsg-v4.14' of git://github.com/andersson/remoteproc Pull rpmsg updates from Bjorn Andersson: "This extends the Qualcomm GLINK implementation to support the additional features used for communicating with modem and DSP coprocessors in modern Qualcomm platforms. In addition to this there's support for placing virtio RPMSG buffers in non-System RAM" * tag 'rpmsg-v4.14' of git://github.com/andersson/remoteproc: (29 commits) rpmsg: glink: initialize ret to zero to ensure error status check is correct rpmsg: glink: fix null pointer dereference on a null intent dt-bindings: soc: qcom: Extend GLINK to cover SMEM remoteproc: qcom: adsp: Allow defining GLINK edge rpmsg: glink: Export symbols from common code rpmsg: glink: Release idr lock before returning on error rpmsg: glink: Handle remote rx done command rpmsg: glink: Request for intents when unavailable rpmsg: glink: Use the intents passed by remote rpmsg: glink: Receive and store the remote intent buffers rpmsg: glink: Add announce_create ops and preallocate intents rpmsg: glink: Add rx done command rpmsg: glink: Make RX FIFO peak accessor to take an offset rpmsg: glink: Use the local intents when receiving data rpmsg: glink: Add support for TX intents rpmsg: glink: Fix idr_lock from mutex to spinlock rpmsg: glink: Add support for transport version negotiation rpmsg: glink: Introduce glink smem based transport rpmsg: glink: Do a mbox_free_channel in remove rpmsg: glink: Return -EAGAIN when there is no FIFO space ...
470 lines
10 KiB
C
470 lines
10 KiB
C
/*
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* Qualcomm ADSP/SLPI Peripheral Image Loader for MSM8974 and MSM8996
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*
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* Copyright (C) 2016 Linaro Ltd
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* Copyright (C) 2014 Sony Mobile Communications AB
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* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clk.h>
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#include <linux/firmware.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/qcom_scm.h>
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#include <linux/regulator/consumer.h>
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#include <linux/remoteproc.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 <linux/soc/qcom/smem_state.h>
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#include "qcom_common.h"
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#include "remoteproc_internal.h"
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struct adsp_data {
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int crash_reason_smem;
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const char *firmware_name;
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int pas_id;
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bool has_aggre2_clk;
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const char *ssr_name;
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};
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struct qcom_adsp {
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struct device *dev;
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struct rproc *rproc;
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int wdog_irq;
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int fatal_irq;
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int ready_irq;
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int handover_irq;
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int stop_ack_irq;
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struct qcom_smem_state *state;
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unsigned stop_bit;
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struct clk *xo;
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struct clk *aggre2_clk;
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struct regulator *cx_supply;
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struct regulator *px_supply;
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int pas_id;
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int crash_reason_smem;
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bool has_aggre2_clk;
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struct completion start_done;
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struct completion stop_done;
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phys_addr_t mem_phys;
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phys_addr_t mem_reloc;
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void *mem_region;
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size_t mem_size;
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struct qcom_rproc_glink glink_subdev;
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struct qcom_rproc_subdev smd_subdev;
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struct qcom_rproc_ssr ssr_subdev;
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};
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static int adsp_load(struct rproc *rproc, const struct firmware *fw)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
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adsp->mem_region, adsp->mem_phys, adsp->mem_size);
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}
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static const struct rproc_fw_ops adsp_fw_ops = {
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.find_rsc_table = qcom_mdt_find_rsc_table,
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.load = adsp_load,
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};
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static int adsp_start(struct rproc *rproc)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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int ret;
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ret = clk_prepare_enable(adsp->xo);
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if (ret)
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return ret;
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ret = clk_prepare_enable(adsp->aggre2_clk);
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if (ret)
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goto disable_xo_clk;
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ret = regulator_enable(adsp->cx_supply);
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if (ret)
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goto disable_aggre2_clk;
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ret = regulator_enable(adsp->px_supply);
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if (ret)
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goto disable_cx_supply;
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ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
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if (ret) {
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dev_err(adsp->dev,
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"failed to authenticate image and release reset\n");
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goto disable_px_supply;
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}
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ret = wait_for_completion_timeout(&adsp->start_done,
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msecs_to_jiffies(5000));
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if (!ret) {
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dev_err(adsp->dev, "start timed out\n");
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qcom_scm_pas_shutdown(adsp->pas_id);
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ret = -ETIMEDOUT;
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goto disable_px_supply;
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}
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ret = 0;
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disable_px_supply:
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regulator_disable(adsp->px_supply);
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disable_cx_supply:
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regulator_disable(adsp->cx_supply);
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disable_aggre2_clk:
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clk_disable_unprepare(adsp->aggre2_clk);
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disable_xo_clk:
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clk_disable_unprepare(adsp->xo);
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return ret;
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}
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static int adsp_stop(struct rproc *rproc)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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int ret;
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qcom_smem_state_update_bits(adsp->state,
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BIT(adsp->stop_bit),
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BIT(adsp->stop_bit));
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ret = wait_for_completion_timeout(&adsp->stop_done,
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msecs_to_jiffies(5000));
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if (ret == 0)
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dev_err(adsp->dev, "timed out on wait\n");
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qcom_smem_state_update_bits(adsp->state,
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BIT(adsp->stop_bit),
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0);
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ret = qcom_scm_pas_shutdown(adsp->pas_id);
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if (ret)
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dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
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return ret;
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}
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static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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int offset;
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offset = da - adsp->mem_reloc;
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if (offset < 0 || offset + len > adsp->mem_size)
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return NULL;
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return adsp->mem_region + offset;
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}
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static const struct rproc_ops adsp_ops = {
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.start = adsp_start,
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.stop = adsp_stop,
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.da_to_va = adsp_da_to_va,
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};
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static irqreturn_t adsp_wdog_interrupt(int irq, void *dev)
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{
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struct qcom_adsp *adsp = dev;
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rproc_report_crash(adsp->rproc, RPROC_WATCHDOG);
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return IRQ_HANDLED;
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}
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static irqreturn_t adsp_fatal_interrupt(int irq, void *dev)
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{
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struct qcom_adsp *adsp = dev;
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size_t len;
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char *msg;
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msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, adsp->crash_reason_smem, &len);
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if (!IS_ERR(msg) && len > 0 && msg[0])
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dev_err(adsp->dev, "fatal error received: %s\n", msg);
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rproc_report_crash(adsp->rproc, RPROC_FATAL_ERROR);
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if (!IS_ERR(msg))
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msg[0] = '\0';
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return IRQ_HANDLED;
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}
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static irqreturn_t adsp_ready_interrupt(int irq, void *dev)
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{
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return IRQ_HANDLED;
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}
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static irqreturn_t adsp_handover_interrupt(int irq, void *dev)
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{
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struct qcom_adsp *adsp = dev;
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complete(&adsp->start_done);
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return IRQ_HANDLED;
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}
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static irqreturn_t adsp_stop_ack_interrupt(int irq, void *dev)
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{
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struct qcom_adsp *adsp = dev;
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complete(&adsp->stop_done);
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return IRQ_HANDLED;
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}
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static int adsp_init_clock(struct qcom_adsp *adsp)
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{
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int ret;
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adsp->xo = devm_clk_get(adsp->dev, "xo");
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if (IS_ERR(adsp->xo)) {
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ret = PTR_ERR(adsp->xo);
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if (ret != -EPROBE_DEFER)
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dev_err(adsp->dev, "failed to get xo clock");
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return ret;
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}
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if (adsp->has_aggre2_clk) {
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adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2");
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if (IS_ERR(adsp->aggre2_clk)) {
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ret = PTR_ERR(adsp->aggre2_clk);
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if (ret != -EPROBE_DEFER)
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dev_err(adsp->dev,
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"failed to get aggre2 clock");
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return ret;
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}
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}
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return 0;
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}
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static int adsp_init_regulator(struct qcom_adsp *adsp)
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{
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adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
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if (IS_ERR(adsp->cx_supply))
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return PTR_ERR(adsp->cx_supply);
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regulator_set_load(adsp->cx_supply, 100000);
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adsp->px_supply = devm_regulator_get(adsp->dev, "px");
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return PTR_ERR_OR_ZERO(adsp->px_supply);
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}
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static int adsp_request_irq(struct qcom_adsp *adsp,
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struct platform_device *pdev,
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const char *name,
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irq_handler_t thread_fn)
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{
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int ret;
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ret = platform_get_irq_byname(pdev, name);
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if (ret < 0) {
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dev_err(&pdev->dev, "no %s IRQ defined\n", name);
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return ret;
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}
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ret = devm_request_threaded_irq(&pdev->dev, ret,
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NULL, thread_fn,
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IRQF_ONESHOT,
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"adsp", adsp);
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if (ret)
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dev_err(&pdev->dev, "request %s IRQ failed\n", name);
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return ret;
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}
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static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
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{
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struct device_node *node;
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struct resource r;
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int ret;
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node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
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if (!node) {
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dev_err(adsp->dev, "no memory-region specified\n");
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return -EINVAL;
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}
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ret = of_address_to_resource(node, 0, &r);
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if (ret)
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return ret;
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adsp->mem_phys = adsp->mem_reloc = r.start;
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adsp->mem_size = resource_size(&r);
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adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
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if (!adsp->mem_region) {
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dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
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&r.start, adsp->mem_size);
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return -EBUSY;
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}
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return 0;
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}
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static int adsp_probe(struct platform_device *pdev)
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{
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const struct adsp_data *desc;
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struct qcom_adsp *adsp;
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struct rproc *rproc;
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int ret;
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desc = of_device_get_match_data(&pdev->dev);
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if (!desc)
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return -EINVAL;
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if (!qcom_scm_is_available())
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return -EPROBE_DEFER;
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rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
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desc->firmware_name, sizeof(*adsp));
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if (!rproc) {
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dev_err(&pdev->dev, "unable to allocate remoteproc\n");
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return -ENOMEM;
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}
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rproc->fw_ops = &adsp_fw_ops;
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adsp = (struct qcom_adsp *)rproc->priv;
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adsp->dev = &pdev->dev;
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adsp->rproc = rproc;
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adsp->pas_id = desc->pas_id;
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adsp->crash_reason_smem = desc->crash_reason_smem;
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adsp->has_aggre2_clk = desc->has_aggre2_clk;
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platform_set_drvdata(pdev, adsp);
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init_completion(&adsp->start_done);
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init_completion(&adsp->stop_done);
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ret = adsp_alloc_memory_region(adsp);
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if (ret)
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goto free_rproc;
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ret = adsp_init_clock(adsp);
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if (ret)
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goto free_rproc;
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ret = adsp_init_regulator(adsp);
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if (ret)
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goto free_rproc;
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ret = adsp_request_irq(adsp, pdev, "wdog", adsp_wdog_interrupt);
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if (ret < 0)
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goto free_rproc;
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adsp->wdog_irq = ret;
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ret = adsp_request_irq(adsp, pdev, "fatal", adsp_fatal_interrupt);
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if (ret < 0)
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goto free_rproc;
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adsp->fatal_irq = ret;
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ret = adsp_request_irq(adsp, pdev, "ready", adsp_ready_interrupt);
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if (ret < 0)
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goto free_rproc;
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adsp->ready_irq = ret;
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ret = adsp_request_irq(adsp, pdev, "handover", adsp_handover_interrupt);
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if (ret < 0)
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goto free_rproc;
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adsp->handover_irq = ret;
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ret = adsp_request_irq(adsp, pdev, "stop-ack", adsp_stop_ack_interrupt);
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if (ret < 0)
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goto free_rproc;
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adsp->stop_ack_irq = ret;
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adsp->state = qcom_smem_state_get(&pdev->dev, "stop",
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&adsp->stop_bit);
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if (IS_ERR(adsp->state)) {
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ret = PTR_ERR(adsp->state);
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goto free_rproc;
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}
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qcom_add_glink_subdev(rproc, &adsp->glink_subdev);
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qcom_add_smd_subdev(rproc, &adsp->smd_subdev);
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qcom_add_ssr_subdev(rproc, &adsp->ssr_subdev, desc->ssr_name);
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ret = rproc_add(rproc);
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if (ret)
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goto free_rproc;
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return 0;
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free_rproc:
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rproc_free(rproc);
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return ret;
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}
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static int adsp_remove(struct platform_device *pdev)
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{
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struct qcom_adsp *adsp = platform_get_drvdata(pdev);
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qcom_smem_state_put(adsp->state);
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rproc_del(adsp->rproc);
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qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
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qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev);
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qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
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rproc_free(adsp->rproc);
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return 0;
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}
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static const struct adsp_data adsp_resource_init = {
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.crash_reason_smem = 423,
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.firmware_name = "adsp.mdt",
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.pas_id = 1,
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.has_aggre2_clk = false,
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.ssr_name = "lpass",
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};
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static const struct adsp_data slpi_resource_init = {
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.crash_reason_smem = 424,
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.firmware_name = "slpi.mdt",
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.pas_id = 12,
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.has_aggre2_clk = true,
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.ssr_name = "dsps",
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};
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static const struct of_device_id adsp_of_match[] = {
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{ .compatible = "qcom,msm8974-adsp-pil", .data = &adsp_resource_init},
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{ .compatible = "qcom,msm8996-adsp-pil", .data = &adsp_resource_init},
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|
{ .compatible = "qcom,msm8996-slpi-pil", .data = &slpi_resource_init},
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{ },
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|
};
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MODULE_DEVICE_TABLE(of, adsp_of_match);
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|
|
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static struct platform_driver adsp_driver = {
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|
.probe = adsp_probe,
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|
.remove = adsp_remove,
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|
.driver = {
|
|
.name = "qcom_adsp_pil",
|
|
.of_match_table = adsp_of_match,
|
|
},
|
|
};
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|
|
|
module_platform_driver(adsp_driver);
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|
MODULE_DESCRIPTION("Qualcomm MSM8974/MSM8996 ADSP Peripherial Image Loader");
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|
MODULE_LICENSE("GPL v2");
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