2 Commits

Author	SHA1	Message	Date
Aurabindo Pillai	6e14adea0a	drm/amd/amdkfd: Fix large framesize for kfd_smi_ev_read() ... The buffer allocated is of 1024 bytes. Allocate this from heap instead of stack. Also remove check for stack size since we're allocating from heap Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Amber Lin <Amber.Lin@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>	2020-07-15 13:27:34 -04:00
Amber Lin	938a0650aa	drm/amdkfd: Provide SMI events watch ... When the compute is malfunctioning or performance drops, the system admin will use SMI (System Management Interface) tool to monitor/diagnostic what went wrong. This patch provides an event watch interface for the user space to register devices and subscribe events they are interested. After registered, the user can use annoymous file descriptor's poll function with wait-time specified and wait for events to happen. Once an event happens, the user can use read() to retrieve information related to the event. VM fault event is done in this patch. v2: - remove UNREGISTER and add event ENABLE/DISABLE - correct kfifo usage - move event message API to kfd_ioctl.h v3: send the event msg in text than in binary v4: support multiple clients v5: move events enablement from ioctl to fd write v6: sparse fix Signed-off-by: Amber Lin <Amber.Lin@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>	2020-07-15 13:27:34 -04:00