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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:12 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:12 +0000
commit8665bd53f2f2e27e5511d90428cb3f60e6d0ce15 (patch)
tree8d58900dc0ebd4a3011f92c128d2fe45bc7c4bf2 /drivers/hwtracing/ptt
parentAdding debian version 6.7.12-1. (diff)
downloadlinux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.tar.xz
linux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.zip
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/hwtracing/ptt')
-rw-r--r--drivers/hwtracing/ptt/hisi_ptt.c19
-rw-r--r--drivers/hwtracing/ptt/hisi_ptt.h1
2 files changed, 12 insertions, 8 deletions
diff --git a/drivers/hwtracing/ptt/hisi_ptt.c b/drivers/hwtracing/ptt/hisi_ptt.c
index 24a1f7797a..4bf04a9778 100644
--- a/drivers/hwtracing/ptt/hisi_ptt.c
+++ b/drivers/hwtracing/ptt/hisi_ptt.c
@@ -183,6 +183,10 @@ static void hisi_ptt_wait_dma_reset_done(struct hisi_ptt *hisi_ptt)
static void hisi_ptt_trace_end(struct hisi_ptt *hisi_ptt)
{
writel(0, hisi_ptt->iobase + HISI_PTT_TRACE_CTRL);
+
+ /* Mask the interrupt on the end */
+ writel(HISI_PTT_TRACE_INT_MASK_ALL, hisi_ptt->iobase + HISI_PTT_TRACE_INT_MASK);
+
hisi_ptt->trace_ctrl.started = false;
}
@@ -270,15 +274,14 @@ static int hisi_ptt_update_aux(struct hisi_ptt *hisi_ptt, int index, bool stop)
buf->pos += size;
/*
- * Just commit the traced data if we're going to stop. Otherwise if the
- * resident AUX buffer cannot contain the data of next trace buffer,
- * apply a new one.
+ * Always commit the data to the AUX buffer in time to make sure
+ * userspace got enough time to consume the data.
+ *
+ * If we're not going to stop, apply a new one and check whether
+ * there's enough room for the next trace.
*/
- if (stop) {
- perf_aux_output_end(handle, buf->pos);
- } else if (buf->length - buf->pos < HISI_PTT_TRACE_BUF_SIZE) {
- perf_aux_output_end(handle, buf->pos);
-
+ perf_aux_output_end(handle, size);
+ if (!stop) {
buf = perf_aux_output_begin(handle, event);
if (!buf)
return -EINVAL;
diff --git a/drivers/hwtracing/ptt/hisi_ptt.h b/drivers/hwtracing/ptt/hisi_ptt.h
index e17f045d7e..46030aa880 100644
--- a/drivers/hwtracing/ptt/hisi_ptt.h
+++ b/drivers/hwtracing/ptt/hisi_ptt.h
@@ -47,6 +47,7 @@
#define HISI_PTT_TRACE_INT_STAT 0x0890
#define HISI_PTT_TRACE_INT_STAT_MASK GENMASK(3, 0)
#define HISI_PTT_TRACE_INT_MASK 0x0894
+#define HISI_PTT_TRACE_INT_MASK_ALL GENMASK(3, 0)
#define HISI_PTT_TUNING_INT_STAT 0x0898
#define HISI_PTT_TUNING_INT_STAT_MASK BIT(0)
#define HISI_PTT_TRACE_WR_STS 0x08a0