diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2024-11-06 11:14:33 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-06 13:26:14 +0100 |
| commit | 4817754a18ef301adac4a13ba79e4f3dc3adbb74 (patch) | |
| tree | 1af4810d83132a707b5b52341cb6e66534ff473e /drivers/usb/host/xhci.h | |
| parent | xhci: Don't trace ring at every enqueue or dequeue increase (diff) | |
| download | linux-4817754a18ef301adac4a13ba79e4f3dc3adbb74.tar.xz linux-4817754a18ef301adac4a13ba79e4f3dc3adbb74.zip | |
xhci: add stream context tracing
Show stream id, stream context type (SCT), ring dequeue pointer and
the DMA address of the stream context during stream allocation
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20241106101459.775897-8-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/usb/host/xhci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 7d81645c2c5d..89337562440b 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -554,6 +554,7 @@ struct xhci_stream_ctx { /* Stream Context Types (section 6.4.1) - bits 3:1 of stream ctx deq ptr */ #define SCT_FOR_CTX(p) (((p) & 0x7) << 1) +#define CTX_TO_SCT(p) (((p) >> 1) & 0x7) /* Secondary stream array type, dequeue pointer is to a transfer ring */ #define SCT_SEC_TR 0 /* Primary stream array type, dequeue pointer is to a transfer ring */ |