[PATCH 03/16] drm/amdkfd: increase limit of signal events to 4096 per process

[Felix Kuehling]

From: Oded Gabbay <oded.gabbay at amd.com>

Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
Reviewed-by: Ben Goz <ben.goz at amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +-
 include/uapi/linux/kfd_ioctl.h          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index 61ce547..ade71b7 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -82,7 +82,7 @@ struct signal_page {
  * For SQ s_sendmsg interrupts, this is limited to 8 bits.
  */
 
-#define INTERRUPT_DATA_BITS 8
+#define INTERRUPT_DATA_BITS 12
 #define SIGNAL_EVENT_ID_SLOT_SHIFT 0
 
 static uint64_t *page_slots(struct signal_page *page)
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 26283fe..731d0df 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -169,7 +169,7 @@ struct kfd_ioctl_dbg_wave_control_args {
 #define KFD_IOC_WAIT_RESULT_TIMEOUT		1
 #define KFD_IOC_WAIT_RESULT_FAIL		2
 
-#define KFD_SIGNAL_EVENT_LIMIT			256
+#define KFD_SIGNAL_EVENT_LIMIT			4096
 
 struct kfd_ioctl_create_event_args {
 	__u64 event_page_offset;	/* from KFD */
-- 
2.7.4