From fb99e79ee62aaa07d9e77cb3a15c5f1ae2790e6a Mon Sep 17 00:00:00 2001 From: Alan Previn Date: Wed, 11 Oct 2023 14:01:57 +0300 Subject: mei: update mei-pxp's component interface with timeouts In debugging platform or firmware related MEI-PXP connection issues, having a timeout when clients (such as i915) calling into mei-pxp's send/receive functions have proven useful as opposed to blocking forever until the kernel triggers a watchdog panic (when platform issues are experienced). Update the mei-pxp component interface send and receive functions to take in timeouts. Signed-off-by: Alan Previn Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Link: https://lore.kernel.org/r/20231011110157.247552-5-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman --- include/drm/i915_pxp_tee_interface.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/drm/i915_pxp_tee_interface.h b/include/drm/i915_pxp_tee_interface.h index a702b6ec17f7..7d96985f2d05 100644 --- a/include/drm/i915_pxp_tee_interface.h +++ b/include/drm/i915_pxp_tee_interface.h @@ -22,8 +22,10 @@ struct i915_pxp_component_ops { */ struct module *owner; - int (*send)(struct device *dev, const void *message, size_t size); - int (*recv)(struct device *dev, void *buffer, size_t size); + int (*send)(struct device *dev, const void *message, size_t size, + unsigned long timeout_ms); + int (*recv)(struct device *dev, void *buffer, size_t size, + unsigned long timeout_ms); ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id, struct scatterlist *sg_in, size_t total_in_len, struct scatterlist *sg_out); -- cgit v1.2.3