mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 16:10:56 +07:00
coresight: tmc: splitting driver in ETB/ETF and ETR components
The TMC block can operate in 3 modes (ETB, ETF and ETR) and accessed via two interfaces (sysFS and Perf). That makes 6 mode to cover, which is way too much coupling for a single file. This patch splits the original TMC driver in 2 halves, one for ETB/ETF and another one for ETR mode. A common core is kept for functionality common to all 3 modes. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathieu Poirier
Greg Kroah-Hartman
parent
a8ab4268e0
commit
6c6ed1e244
@ -3,7 +3,9 @@
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#
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obj-$(CONFIG_CORESIGHT) += coresight.o coresight-etm-perf.o
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obj-$(CONFIG_OF) += of_coresight.o
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obj-$(CONFIG_CORESIGHT_LINK_AND_SINK_TMC) += coresight-tmc.o
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obj-$(CONFIG_CORESIGHT_LINK_AND_SINK_TMC) += coresight-tmc.o \
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coresight-tmc-etf.o \
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coresight-tmc-etr.o
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obj-$(CONFIG_CORESIGHT_SINK_TPIU) += coresight-tpiu.o
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obj-$(CONFIG_CORESIGHT_SINK_ETBV10) += coresight-etb10.o
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obj-$(CONFIG_CORESIGHT_LINKS_AND_SINKS) += coresight-funnel.o \
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204
drivers/hwtracing/coresight/coresight-tmc-etf.c
Normal file
204
drivers/hwtracing/coresight/coresight-tmc-etf.c
Normal file
@ -0,0 +1,204 @@
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/*
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* Copyright(C) 2016 Linaro Limited. All rights reserved.
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* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/coresight.h>
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#include "coresight-priv.h"
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#include "coresight-tmc.h"
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void tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
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{
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/* Zero out the memory to help with debug */
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memset(drvdata->buf, 0, drvdata->size);
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CS_UNLOCK(drvdata->base);
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/* Wait for TMCSReady bit to be set */
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tmc_wait_for_tmcready(drvdata);
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writel_relaxed(TMC_MODE_CIRCULAR_BUFFER, drvdata->base + TMC_MODE);
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writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI |
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TMC_FFCR_FON_FLIN | TMC_FFCR_FON_TRIG_EVT |
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TMC_FFCR_TRIGON_TRIGIN,
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drvdata->base + TMC_FFCR);
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writel_relaxed(drvdata->trigger_cntr, drvdata->base + TMC_TRG);
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tmc_enable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static void tmc_etb_dump_hw(struct tmc_drvdata *drvdata)
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{
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enum tmc_mem_intf_width memwidth;
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u8 memwords;
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char *bufp;
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u32 read_data;
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int i;
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memwidth = BMVAL(readl_relaxed(drvdata->base + CORESIGHT_DEVID), 8, 10);
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if (memwidth == TMC_MEM_INTF_WIDTH_32BITS)
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memwords = 1;
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else if (memwidth == TMC_MEM_INTF_WIDTH_64BITS)
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memwords = 2;
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else if (memwidth == TMC_MEM_INTF_WIDTH_128BITS)
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memwords = 4;
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else
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memwords = 8;
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bufp = drvdata->buf;
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while (1) {
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for (i = 0; i < memwords; i++) {
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read_data = readl_relaxed(drvdata->base + TMC_RRD);
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if (read_data == 0xFFFFFFFF)
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return;
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memcpy(bufp, &read_data, 4);
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bufp += 4;
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}
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}
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}
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void tmc_etb_disable_hw(struct tmc_drvdata *drvdata)
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{
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CS_UNLOCK(drvdata->base);
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tmc_flush_and_stop(drvdata);
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tmc_etb_dump_hw(drvdata);
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tmc_disable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static void tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
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{
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CS_UNLOCK(drvdata->base);
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/* Wait for TMCSReady bit to be set */
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tmc_wait_for_tmcready(drvdata);
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writel_relaxed(TMC_MODE_HARDWARE_FIFO, drvdata->base + TMC_MODE);
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writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI,
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drvdata->base + TMC_FFCR);
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writel_relaxed(0x0, drvdata->base + TMC_BUFWM);
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tmc_enable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static void tmc_etf_disable_hw(struct tmc_drvdata *drvdata)
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{
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CS_UNLOCK(drvdata->base);
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tmc_flush_and_stop(drvdata);
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tmc_disable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode)
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{
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unsigned long flags;
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struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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spin_lock_irqsave(&drvdata->spinlock, flags);
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if (drvdata->reading) {
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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return -EBUSY;
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}
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tmc_etb_enable_hw(drvdata);
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drvdata->enable = true;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_info(drvdata->dev, "TMC-ETB/ETF enabled\n");
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return 0;
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}
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static void tmc_disable_etf_sink(struct coresight_device *csdev)
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{
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unsigned long flags;
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struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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spin_lock_irqsave(&drvdata->spinlock, flags);
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if (drvdata->reading) {
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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return;
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}
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tmc_etb_disable_hw(drvdata);
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drvdata->enable = false;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_info(drvdata->dev, "TMC-ETB/ETF disabled\n");
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}
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static int tmc_enable_etf_link(struct coresight_device *csdev,
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int inport, int outport)
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{
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unsigned long flags;
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struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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spin_lock_irqsave(&drvdata->spinlock, flags);
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if (drvdata->reading) {
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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return -EBUSY;
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}
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tmc_etf_enable_hw(drvdata);
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drvdata->enable = true;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_info(drvdata->dev, "TMC-ETF enabled\n");
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return 0;
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}
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static void tmc_disable_etf_link(struct coresight_device *csdev,
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int inport, int outport)
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{
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unsigned long flags;
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struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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spin_lock_irqsave(&drvdata->spinlock, flags);
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if (drvdata->reading) {
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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return;
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}
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tmc_etf_disable_hw(drvdata);
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drvdata->enable = false;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_info(drvdata->dev, "TMC disabled\n");
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}
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static const struct coresight_ops_sink tmc_etf_sink_ops = {
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.enable = tmc_enable_etf_sink,
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.disable = tmc_disable_etf_sink,
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};
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static const struct coresight_ops_link tmc_etf_link_ops = {
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.enable = tmc_enable_etf_link,
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.disable = tmc_disable_etf_link,
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};
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const struct coresight_ops tmc_etb_cs_ops = {
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.sink_ops = &tmc_etf_sink_ops,
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};
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const struct coresight_ops tmc_etf_cs_ops = {
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.sink_ops = &tmc_etf_sink_ops,
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.link_ops = &tmc_etf_link_ops,
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};
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128
drivers/hwtracing/coresight/coresight-tmc-etr.c
Normal file
128
drivers/hwtracing/coresight/coresight-tmc-etr.c
Normal file
@ -0,0 +1,128 @@
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/*
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* Copyright(C) 2016 Linaro Limited. All rights reserved.
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* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/coresight.h>
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#include "coresight-priv.h"
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#include "coresight-tmc.h"
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void tmc_etr_enable_hw(struct tmc_drvdata *drvdata)
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{
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u32 axictl;
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/* Zero out the memory to help with debug */
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memset(drvdata->vaddr, 0, drvdata->size);
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CS_UNLOCK(drvdata->base);
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/* Wait for TMCSReady bit to be set */
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tmc_wait_for_tmcready(drvdata);
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writel_relaxed(drvdata->size / 4, drvdata->base + TMC_RSZ);
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writel_relaxed(TMC_MODE_CIRCULAR_BUFFER, drvdata->base + TMC_MODE);
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axictl = readl_relaxed(drvdata->base + TMC_AXICTL);
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axictl |= TMC_AXICTL_WR_BURST_16;
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writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
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axictl &= ~TMC_AXICTL_SCT_GAT_MODE;
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writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
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axictl = (axictl &
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~(TMC_AXICTL_PROT_CTL_B0 | TMC_AXICTL_PROT_CTL_B1)) |
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TMC_AXICTL_PROT_CTL_B1;
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writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
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writel_relaxed(drvdata->paddr, drvdata->base + TMC_DBALO);
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writel_relaxed(0x0, drvdata->base + TMC_DBAHI);
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writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI |
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TMC_FFCR_FON_FLIN | TMC_FFCR_FON_TRIG_EVT |
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TMC_FFCR_TRIGON_TRIGIN,
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drvdata->base + TMC_FFCR);
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writel_relaxed(drvdata->trigger_cntr, drvdata->base + TMC_TRG);
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tmc_enable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static void tmc_etr_dump_hw(struct tmc_drvdata *drvdata)
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{
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u32 rwp, val;
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rwp = readl_relaxed(drvdata->base + TMC_RWP);
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val = readl_relaxed(drvdata->base + TMC_STS);
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/* How much memory do we still have */
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if (val & BIT(0))
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drvdata->buf = drvdata->vaddr + rwp - drvdata->paddr;
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else
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drvdata->buf = drvdata->vaddr;
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}
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void tmc_etr_disable_hw(struct tmc_drvdata *drvdata)
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{
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CS_UNLOCK(drvdata->base);
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tmc_flush_and_stop(drvdata);
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tmc_etr_dump_hw(drvdata);
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tmc_disable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static int tmc_enable_etr_sink(struct coresight_device *csdev, u32 mode)
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{
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unsigned long flags;
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struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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spin_lock_irqsave(&drvdata->spinlock, flags);
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if (drvdata->reading) {
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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return -EBUSY;
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}
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tmc_etr_enable_hw(drvdata);
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drvdata->enable = true;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_info(drvdata->dev, "TMC-ETR enabled\n");
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return 0;
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}
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static void tmc_disable_etr_sink(struct coresight_device *csdev)
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{
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unsigned long flags;
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struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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spin_lock_irqsave(&drvdata->spinlock, flags);
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if (drvdata->reading) {
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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return;
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}
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tmc_etr_disable_hw(drvdata);
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drvdata->enable = false;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_info(drvdata->dev, "TMC-ETR disabled\n");
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}
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static const struct coresight_ops_sink tmc_etr_sink_ops = {
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.enable = tmc_enable_etr_sink,
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.disable = tmc_disable_etr_sink,
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};
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const struct coresight_ops tmc_etr_cs_ops = {
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.sink_ops = &tmc_etr_sink_ops,
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};
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@ -32,7 +32,7 @@
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#include "coresight-priv.h"
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#include "coresight-tmc.h"
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static void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata)
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void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata)
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{
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/* Ensure formatter, unformatter and hardware fifo are empty */
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if (coresight_timeout(drvdata->base,
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@ -43,7 +43,7 @@ static void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata)
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}
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}
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static void tmc_flush_and_stop(struct tmc_drvdata *drvdata)
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void tmc_flush_and_stop(struct tmc_drvdata *drvdata)
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{
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u32 ffcr;
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@ -63,272 +63,16 @@ static void tmc_flush_and_stop(struct tmc_drvdata *drvdata)
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tmc_wait_for_tmcready(drvdata);
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}
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static void tmc_enable_hw(struct tmc_drvdata *drvdata)
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void tmc_enable_hw(struct tmc_drvdata *drvdata)
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{
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writel_relaxed(TMC_CTL_CAPT_EN, drvdata->base + TMC_CTL);
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}
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static void tmc_disable_hw(struct tmc_drvdata *drvdata)
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void tmc_disable_hw(struct tmc_drvdata *drvdata)
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{
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writel_relaxed(0x0, drvdata->base + TMC_CTL);
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}
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static void tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
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{
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/* Zero out the memory to help with debug */
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memset(drvdata->buf, 0, drvdata->size);
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CS_UNLOCK(drvdata->base);
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/* Wait for TMCSReady bit to be set */
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tmc_wait_for_tmcready(drvdata);
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writel_relaxed(TMC_MODE_CIRCULAR_BUFFER, drvdata->base + TMC_MODE);
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writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI |
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TMC_FFCR_FON_FLIN | TMC_FFCR_FON_TRIG_EVT |
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TMC_FFCR_TRIGON_TRIGIN,
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drvdata->base + TMC_FFCR);
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writel_relaxed(drvdata->trigger_cntr, drvdata->base + TMC_TRG);
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tmc_enable_hw(drvdata);
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CS_LOCK(drvdata->base);
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}
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static void tmc_etr_enable_hw(struct tmc_drvdata *drvdata)
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{
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u32 axictl;
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/* Zero out the memory to help with debug */
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memset(drvdata->vaddr, 0, drvdata->size);
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CS_UNLOCK(drvdata->base);
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/* Wait for TMCSReady bit to be set */
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tmc_wait_for_tmcready(drvdata);
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writel_relaxed(drvdata->size / 4, drvdata->base + TMC_RSZ);
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writel_relaxed(TMC_MODE_CIRCULAR_BUFFER, drvdata->base + TMC_MODE);
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axictl = readl_relaxed(drvdata->base + TMC_AXICTL);
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axictl |= TMC_AXICTL_WR_BURST_16;
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writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
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axictl &= ~TMC_AXICTL_SCT_GAT_MODE;
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writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
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axictl = (axictl &
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~(TMC_AXICTL_PROT_CTL_B0 | TMC_AXICTL_PROT_CTL_B1)) |
|
||||
TMC_AXICTL_PROT_CTL_B1;
|
||||
writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
|
||||
|
||||
writel_relaxed(drvdata->paddr, drvdata->base + TMC_DBALO);
|
||||
writel_relaxed(0x0, drvdata->base + TMC_DBAHI);
|
||||
writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI |
|
||||
TMC_FFCR_FON_FLIN | TMC_FFCR_FON_TRIG_EVT |
|
||||
TMC_FFCR_TRIGON_TRIGIN,
|
||||
drvdata->base + TMC_FFCR);
|
||||
writel_relaxed(drvdata->trigger_cntr, drvdata->base + TMC_TRG);
|
||||
tmc_enable_hw(drvdata);
|
||||
|
||||
CS_LOCK(drvdata->base);
|
||||
}
|
||||
|
||||
static void tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
CS_UNLOCK(drvdata->base);
|
||||
|
||||
/* Wait for TMCSReady bit to be set */
|
||||
tmc_wait_for_tmcready(drvdata);
|
||||
|
||||
writel_relaxed(TMC_MODE_HARDWARE_FIFO, drvdata->base + TMC_MODE);
|
||||
writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI,
|
||||
drvdata->base + TMC_FFCR);
|
||||
writel_relaxed(0x0, drvdata->base + TMC_BUFWM);
|
||||
tmc_enable_hw(drvdata);
|
||||
|
||||
CS_LOCK(drvdata->base);
|
||||
}
|
||||
|
||||
static int tmc_enable(struct tmc_drvdata *drvdata, enum tmc_mode mode)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&drvdata->spinlock, flags);
|
||||
if (drvdata->reading) {
|
||||
spin_unlock_irqrestore(&drvdata->spinlock, flags);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
if (drvdata->config_type == TMC_CONFIG_TYPE_ETB) {
|
||||
tmc_etb_enable_hw(drvdata);
|
||||
} else if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {
|
||||
tmc_etr_enable_hw(drvdata);
|
||||
} else {
|
||||
if (mode == TMC_MODE_CIRCULAR_BUFFER)
|
||||
tmc_etb_enable_hw(drvdata);
|
||||
else
|
||||
tmc_etf_enable_hw(drvdata);
|
||||
}
|
||||
drvdata->enable = true;
|
||||
spin_unlock_irqrestore(&drvdata->spinlock, flags);
|
||||
|
||||
dev_info(drvdata->dev, "TMC enabled\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tmc_enable_sink(struct coresight_device *csdev, u32 mode)
|
||||
{
|
||||
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
|
||||
|
||||
return tmc_enable(drvdata, TMC_MODE_CIRCULAR_BUFFER);
|
||||
}
|
||||
|
||||
static int tmc_enable_link(struct coresight_device *csdev, int inport,
|
||||
int outport)
|
||||
{
|
||||
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
|
||||
|
||||
return tmc_enable(drvdata, TMC_MODE_HARDWARE_FIFO);
|
||||
}
|
||||
|
||||
static void tmc_etb_dump_hw(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
enum tmc_mem_intf_width memwidth;
|
||||
u8 memwords;
|
||||
char *bufp;
|
||||
u32 read_data;
|
||||
int i;
|
||||
|
||||
memwidth = BMVAL(readl_relaxed(drvdata->base + CORESIGHT_DEVID), 8, 10);
|
||||
if (memwidth == TMC_MEM_INTF_WIDTH_32BITS)
|
||||
memwords = 1;
|
||||
else if (memwidth == TMC_MEM_INTF_WIDTH_64BITS)
|
||||
memwords = 2;
|
||||
else if (memwidth == TMC_MEM_INTF_WIDTH_128BITS)
|
||||
memwords = 4;
|
||||
else
|
||||
memwords = 8;
|
||||
|
||||
bufp = drvdata->buf;
|
||||
while (1) {
|
||||
for (i = 0; i < memwords; i++) {
|
||||
read_data = readl_relaxed(drvdata->base + TMC_RRD);
|
||||
if (read_data == 0xFFFFFFFF)
|
||||
return;
|
||||
memcpy(bufp, &read_data, 4);
|
||||
bufp += 4;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void tmc_etb_disable_hw(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
CS_UNLOCK(drvdata->base);
|
||||
|
||||
tmc_flush_and_stop(drvdata);
|
||||
tmc_etb_dump_hw(drvdata);
|
||||
tmc_disable_hw(drvdata);
|
||||
|
||||
CS_LOCK(drvdata->base);
|
||||
}
|
||||
|
||||
static void tmc_etr_dump_hw(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
u32 rwp, val;
|
||||
|
||||
rwp = readl_relaxed(drvdata->base + TMC_RWP);
|
||||
val = readl_relaxed(drvdata->base + TMC_STS);
|
||||
|
||||
/* How much memory do we still have */
|
||||
if (val & BIT(0))
|
||||
drvdata->buf = drvdata->vaddr + rwp - drvdata->paddr;
|
||||
else
|
||||
drvdata->buf = drvdata->vaddr;
|
||||
}
|
||||
|
||||
static void tmc_etr_disable_hw(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
CS_UNLOCK(drvdata->base);
|
||||
|
||||
tmc_flush_and_stop(drvdata);
|
||||
tmc_etr_dump_hw(drvdata);
|
||||
tmc_disable_hw(drvdata);
|
||||
|
||||
CS_LOCK(drvdata->base);
|
||||
}
|
||||
|
||||
static void tmc_etf_disable_hw(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
CS_UNLOCK(drvdata->base);
|
||||
|
||||
tmc_flush_and_stop(drvdata);
|
||||
tmc_disable_hw(drvdata);
|
||||
|
||||
CS_LOCK(drvdata->base);
|
||||
}
|
||||
|
||||
static void tmc_disable(struct tmc_drvdata *drvdata, enum tmc_mode mode)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&drvdata->spinlock, flags);
|
||||
if (drvdata->reading)
|
||||
goto out;
|
||||
|
||||
if (drvdata->config_type == TMC_CONFIG_TYPE_ETB) {
|
||||
tmc_etb_disable_hw(drvdata);
|
||||
} else if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {
|
||||
tmc_etr_disable_hw(drvdata);
|
||||
} else {
|
||||
if (mode == TMC_MODE_CIRCULAR_BUFFER)
|
||||
tmc_etb_disable_hw(drvdata);
|
||||
else
|
||||
tmc_etf_disable_hw(drvdata);
|
||||
}
|
||||
out:
|
||||
drvdata->enable = false;
|
||||
spin_unlock_irqrestore(&drvdata->spinlock, flags);
|
||||
|
||||
dev_info(drvdata->dev, "TMC disabled\n");
|
||||
}
|
||||
|
||||
static void tmc_disable_sink(struct coresight_device *csdev)
|
||||
{
|
||||
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
|
||||
|
||||
tmc_disable(drvdata, TMC_MODE_CIRCULAR_BUFFER);
|
||||
}
|
||||
|
||||
static void tmc_disable_link(struct coresight_device *csdev, int inport,
|
||||
int outport)
|
||||
{
|
||||
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
|
||||
|
||||
tmc_disable(drvdata, TMC_MODE_HARDWARE_FIFO);
|
||||
}
|
||||
|
||||
static const struct coresight_ops_sink tmc_sink_ops = {
|
||||
.enable = tmc_enable_sink,
|
||||
.disable = tmc_disable_sink,
|
||||
};
|
||||
|
||||
static const struct coresight_ops_link tmc_link_ops = {
|
||||
.enable = tmc_enable_link,
|
||||
.disable = tmc_disable_link,
|
||||
};
|
||||
|
||||
static const struct coresight_ops tmc_etb_cs_ops = {
|
||||
.sink_ops = &tmc_sink_ops,
|
||||
};
|
||||
|
||||
static const struct coresight_ops tmc_etr_cs_ops = {
|
||||
.sink_ops = &tmc_sink_ops,
|
||||
};
|
||||
|
||||
static const struct coresight_ops tmc_etf_cs_ops = {
|
||||
.sink_ops = &tmc_sink_ops,
|
||||
.link_ops = &tmc_link_ops,
|
||||
};
|
||||
|
||||
static int tmc_read_prepare(struct tmc_drvdata *drvdata)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
@ -18,6 +18,8 @@
|
||||
#ifndef _CORESIGHT_TMC_H
|
||||
#define _CORESIGHT_TMC_H
|
||||
|
||||
#include <linux/miscdevice.h>
|
||||
|
||||
#define TMC_RSZ 0x004
|
||||
#define TMC_STS 0x00c
|
||||
#define TMC_RRD 0x010
|
||||
@ -118,4 +120,20 @@ struct tmc_drvdata {
|
||||
u32 trigger_cntr;
|
||||
};
|
||||
|
||||
/* Generic functions */
|
||||
void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata);
|
||||
void tmc_flush_and_stop(struct tmc_drvdata *drvdata);
|
||||
void tmc_enable_hw(struct tmc_drvdata *drvdata);
|
||||
void tmc_disable_hw(struct tmc_drvdata *drvdata);
|
||||
|
||||
/* ETB/ETF functions */
|
||||
void tmc_etb_enable_hw(struct tmc_drvdata *drvdata);
|
||||
void tmc_etb_disable_hw(struct tmc_drvdata *drvdata);
|
||||
extern const struct coresight_ops tmc_etb_cs_ops;
|
||||
extern const struct coresight_ops tmc_etf_cs_ops;
|
||||
|
||||
/* ETR functions */
|
||||
void tmc_etr_enable_hw(struct tmc_drvdata *drvdata);
|
||||
void tmc_etr_disable_hw(struct tmc_drvdata *drvdata);
|
||||
extern const struct coresight_ops tmc_etr_cs_ops;
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user