rubenslte/android_kernel_samsung_msm8226-rubenslte
1
Fork 0
forked from rubenslte/android_kernel_samsung_msm8226
Code Pull Requests Activity

coresight: enable flush-on-flushin for periodic flush to usb

Browse Source 
Periodic flushing for ETR to USB uses ETR flush-on-FLUSHIN
external input. Hence, enable flush-on-FLUSHIN by default when
enabling ETR to USB transfers and work around the manual flush
failure by skipping it during ETR to USB disable. Adjust the
periodic flush threshold to the maximum value in order to
reduce the overhead when there is no data to be transferred.

CRs-Fixed: 461885
Change-Id: Ie3a1bbc80e017f187af56fcfdfb52297ba9aa72d
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
This commit is contained in:
Pratik Patel
2013-09-16 12:49:18 -07:00
parent 6dd487fc88
commit 15604c708b
2 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/coresight/coresight-csr.c
+1 -1
View File
@@ -94,7 +94,7 @@ void msm_qdss_csr_enable_bam_to_usb(void)
csr_writel(drvdata, usbbamctrl, CSR_USBBAMCTRL);
usbflshctrl = csr_readl(drvdata, CSR_USBFLSHCTRL);
usbflshctrl = (usbflshctrl & ~0x3FFFC) | (0x1000 << 2);
usbflshctrl = (usbflshctrl & ~0x3FFFC) | (0xFFFF << 2);
csr_writel(drvdata, usbflshctrl, CSR_USBFLSHCTRL);
usbflshctrl |= 0x2;
csr_writel(drvdata, usbflshctrl, CSR_USBFLSHCTRL);
drivers/coresight/coresight-tmc.c
+2 -2
View File
@@ -275,7 +275,8 @@ static void __tmc_etr_enable_to_bam(struct tmc_drvdata *drvdata)
tmc_writel(drvdata, (uint32_t)bamdata->data_fifo.phys_base, TMC_DBALO);
tmc_writel(drvdata, (((uint64_t)bamdata->data_fifo.phys_base) >> 32)
& 0xFF, TMC_DBAHI);
tmc_writel(drvdata, 0x103, TMC_FFCR);
/* Set FOnFlIn for periodic flush */
tmc_writel(drvdata, 0x133, TMC_FFCR);
tmc_writel(drvdata, drvdata->trigger_cntr, TMC_TRG);
__tmc_enable(drvdata);
@@ -341,7 +342,6 @@ static void __tmc_etr_disable_to_bam(struct tmc_drvdata *drvdata)
TMC_UNLOCK(drvdata);
tmc_wait_for_flush(drvdata);
tmc_flush_and_stop(drvdata);
__tmc_disable(drvdata);
TMC_LOCK(drvdata);