lkml.org 
[lkml]   [2018]   [May]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH 4/5] remoteproc: qcom: q6v5-pil: Use common q6v5 helpers
Date
Migrate the MSS remoteproc driver to use the newly extracted helper
functions.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
drivers/remoteproc/Kconfig | 4 +
drivers/remoteproc/qcom_q6v5_pil.c | 157 +++--------------------------
2 files changed, 19 insertions(+), 142 deletions(-)

diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index d51d155cf8bd..2316908e9788 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -116,6 +116,10 @@ config QCOM_Q6V5_PIL
depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
depends on QCOM_SYSMON || QCOM_SYSMON=n
select MFD_SYSCON
+ select QCOM_Q6V5_COMMON
+ select QCOM_RPROC_COMMON
+ select QCOM_SCM
+ select QCOM_Q6V5_COMMON
select QCOM_RPROC_COMMON
select QCOM_SCM
help
diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 2bf8e7c49f2a..e04319573c91 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -30,12 +30,11 @@
#include <linux/remoteproc.h>
#include <linux/reset.h>
#include <linux/soc/qcom/mdt_loader.h>
-#include <linux/soc/qcom/smem.h>
-#include <linux/soc/qcom/smem_state.h>
#include <linux/iopoll.h>

#include "remoteproc_internal.h"
#include "qcom_common.h"
+#include "qcom_q6v5.h"

#include <linux/qcom_scm.h>

@@ -151,12 +150,7 @@ struct q6v5 {

struct reset_control *mss_restart;

- struct qcom_smem_state *state;
- unsigned stop_bit;
-
- int handover_irq;
-
- bool proxy_unvoted;
+ struct qcom_q6v5 q6v5;

struct clk *active_clks[8];
struct clk *reset_clks[4];
@@ -170,8 +164,6 @@ struct q6v5 {
int active_reg_count;
int proxy_reg_count;

- struct completion start_done;
- struct completion stop_done;
bool running;

phys_addr_t mba_phys;
@@ -798,9 +790,7 @@ static int q6v5_start(struct rproc *rproc)
int xfermemop_ret;
int ret;

- qproc->proxy_unvoted = false;
-
- enable_irq(qproc->handover_irq);
+ qcom_q6v5_prepare(&qproc->q6v5);

ret = q6v5_regulator_enable(qproc, qproc->proxy_regs,
qproc->proxy_reg_count);
@@ -875,11 +865,9 @@ static int q6v5_start(struct rproc *rproc)
if (ret)
goto reclaim_mpss;

- ret = wait_for_completion_timeout(&qproc->start_done,
- msecs_to_jiffies(5000));
- if (ret == 0) {
+ ret = qcom_q6v5_wait_for_start(&qproc->q6v5, msecs_to_jiffies(5000));
+ if (ret == -ETIMEDOUT) {
dev_err(qproc->dev, "start timed out\n");
- ret = -ETIMEDOUT;
goto reclaim_mpss;
}

@@ -933,7 +921,7 @@ static int q6v5_start(struct rproc *rproc)
qproc->proxy_reg_count);

disable_irqs:
- disable_irq(qproc->handover_irq);
+ qcom_q6v5_unprepare(&qproc->q6v5);

return ret;
}
@@ -946,16 +934,10 @@ static int q6v5_stop(struct rproc *rproc)

qproc->running = false;

- qcom_smem_state_update_bits(qproc->state,
- BIT(qproc->stop_bit), BIT(qproc->stop_bit));
-
- ret = wait_for_completion_timeout(&qproc->stop_done,
- msecs_to_jiffies(5000));
- if (ret == 0)
+ ret = qcom_q6v5_request_stop(&qproc->q6v5);
+ if (ret == -ETIMEDOUT)
dev_err(qproc->dev, "timed out on wait\n");

- qcom_smem_state_update_bits(qproc->state, BIT(qproc->stop_bit), 0);
-
q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
@@ -976,9 +958,8 @@ static int q6v5_stop(struct rproc *rproc)

q6v5_reset_assert(qproc);

- disable_irq(qproc->handover_irq);
-
- if (!qproc->proxy_unvoted) {
+ ret = qcom_q6v5_unprepare(&qproc->q6v5);
+ if (ret) {
q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
qproc->proxy_clk_count);
q6v5_regulator_disable(qproc, qproc->proxy_regs,
@@ -1014,74 +995,14 @@ static const struct rproc_ops q6v5_ops = {
.load = q6v5_load,
};

-static irqreturn_t q6v5_wdog_interrupt(int irq, void *dev)
-{
- struct q6v5 *qproc = dev;
- size_t len;
- char *msg;
-
- /* Sometimes the stop triggers a watchdog rather than a stop-ack */
- if (!qproc->running) {
- complete(&qproc->stop_done);
- return IRQ_HANDLED;
- }
-
- msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, MPSS_CRASH_REASON_SMEM, &len);
- if (!IS_ERR(msg) && len > 0 && msg[0])
- dev_err(qproc->dev, "watchdog received: %s\n", msg);
- else
- dev_err(qproc->dev, "watchdog without message\n");
-
- rproc_report_crash(qproc->rproc, RPROC_WATCHDOG);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t q6v5_fatal_interrupt(int irq, void *dev)
-{
- struct q6v5 *qproc = dev;
- size_t len;
- char *msg;
-
- msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, MPSS_CRASH_REASON_SMEM, &len);
- if (!IS_ERR(msg) && len > 0 && msg[0])
- dev_err(qproc->dev, "fatal error received: %s\n", msg);
- else
- dev_err(qproc->dev, "fatal error without message\n");
-
- rproc_report_crash(qproc->rproc, RPROC_FATAL_ERROR);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t q6v5_ready_interrupt(int irq, void *dev)
-{
- struct q6v5 *qproc = dev;
-
- complete(&qproc->start_done);
- return IRQ_HANDLED;
-}
-
-static irqreturn_t q6v5_handover_interrupt(int irq, void *dev)
+static void qcom_msa_handover(struct qcom_q6v5 *q6v5)
{
- struct q6v5 *qproc = dev;
+ struct q6v5 *qproc = container_of(q6v5, struct q6v5, q6v5);

q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
qproc->proxy_clk_count);
q6v5_regulator_disable(qproc, qproc->proxy_regs,
qproc->proxy_reg_count);
-
- qproc->proxy_unvoted = true;
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t q6v5_stop_ack_interrupt(int irq, void *dev)
-{
- struct q6v5 *qproc = dev;
-
- complete(&qproc->stop_done);
- return IRQ_HANDLED;
}

static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
@@ -1154,30 +1075,6 @@ static int q6v5_init_reset(struct q6v5 *qproc)
return 0;
}

-static int q6v5_request_irq(struct q6v5 *qproc,
- struct platform_device *pdev,
- const char *name,
- irq_handler_t thread_fn)
-{
- int irq;
- int ret;
-
- irq = platform_get_irq_byname(pdev, name);
- if (irq < 0) {
- dev_err(&pdev->dev, "no %s IRQ defined\n", name);
- return irq;
- }
-
- ret = devm_request_threaded_irq(&pdev->dev, irq,
- NULL, thread_fn,
- IRQF_TRIGGER_RISING | IRQF_ONESHOT,
- "q6v5", qproc);
- if (ret)
- dev_err(&pdev->dev, "request %s IRQ failed\n", name);
-
- return ret ? : irq;
-}
-
static int q6v5_alloc_memory_region(struct q6v5 *qproc)
{
struct device_node *child;
@@ -1247,9 +1144,6 @@ static int q6v5_probe(struct platform_device *pdev)
qproc->rproc = rproc;
platform_set_drvdata(pdev, qproc);

- init_completion(&qproc->start_done);
- init_completion(&qproc->stop_done);
-
ret = q6v5_init_mem(qproc, pdev);
if (ret)
goto free_rproc;
@@ -1305,33 +1199,12 @@ static int q6v5_probe(struct platform_device *pdev)
qproc->version = desc->version;
qproc->has_alt_reset = desc->has_alt_reset;
qproc->need_mem_protection = desc->need_mem_protection;
- ret = q6v5_request_irq(qproc, pdev, "wdog", q6v5_wdog_interrupt);
- if (ret < 0)
- goto free_rproc;

- ret = q6v5_request_irq(qproc, pdev, "fatal", q6v5_fatal_interrupt);
- if (ret < 0)
- goto free_rproc;
-
- ret = q6v5_request_irq(qproc, pdev, "ready", q6v5_ready_interrupt);
- if (ret < 0)
- goto free_rproc;
-
- ret = q6v5_request_irq(qproc, pdev, "handover", q6v5_handover_interrupt);
- if (ret < 0)
- goto free_rproc;
- qproc->handover_irq = ret;
- disable_irq(qproc->handover_irq);
-
- ret = q6v5_request_irq(qproc, pdev, "stop-ack", q6v5_stop_ack_interrupt);
- if (ret < 0)
+ ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM,
+ qcom_msa_handover);
+ if (ret)
goto free_rproc;

- qproc->state = qcom_smem_state_get(&pdev->dev, "stop", &qproc->stop_bit);
- if (IS_ERR(qproc->state)) {
- ret = PTR_ERR(qproc->state);
- goto free_rproc;
- }
qproc->mpss_perm = BIT(QCOM_SCM_VMID_HLOS);
qproc->mba_perm = BIT(QCOM_SCM_VMID_HLOS);
qcom_add_glink_subdev(rproc, &qproc->glink_subdev);
--
2.17.0
\
 
 \ /
  Last update: 2018-05-23 07:22    [W:0.124 / U:2.444 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site