This series adds tracepoint support to the Qualcomm GPI DMA engine driver, giving structured runtime visibility into GPI DMA behavior without requiring invasive debug patches.
Patch 1 adds the qcom_gpi trace events header (private to the driver, in drivers/dma/qcom/gpi_trace.h) and wires the tracepoints into the driver alongside the existing dev_dbg() calls. Patch 2 converts the remaining dev_dbg() call sites in the driver to use the new tracepoints instead. Signed-off-by: Praveen Talari <[email protected]> --- Changes in v3: - Move the qcom_gpi trace events header from include/trace/events/qcom_gpi.h into drivers/dma/qcom/gpi_trace.h, since it has no users outside the GPI DMA driver, and squash it into the tracepoint-wiring patch. - Drop the redundant per-function breakdown paragraph from the dev_dbg()-to-tracepoint conversion patch; the first paragraph already describes the change. - Link to v2: https://patch.msgid.link/20260909-add-trace-support-gpio-v2-0-01f81739b...@oss.qualcomm.com Changes in v2: - Reorder TP_STRUCT__entry() fields in gpi_ev_process, gpi_alloc_ring, and gpi_ring_info to avoid holes: 8/16-bit fields moved to the end, and 64-bit/size_t fields moved before the __string() field (treating __string() as 4 bytes of metadata). (Steven Rostedt) - Link to v1: https://patch.msgid.link/20260831-add-trace-support-gpio-v1-0-7b0fd0d0d...@oss.qualcomm.com --- Praveen Talari (2): dmaengine: qcom: gpi: Add trace event support dmaengine: qcom: gpi: Convert dev_dbg() calls to tracepoints drivers/dma/qcom/gpi.c | 69 ++++------ drivers/dma/qcom/gpi_trace.h | 317 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 344 insertions(+), 42 deletions(-) --- base-commit: 4c253ac4b29b8c6cc6fdef8f92d4facde62e63b9 change-id: 20260831-add-trace-support-gpio-99eb54d42729 Best regards, -- Praveen Talari <[email protected]>
