Commit e52606d2 authored by Ofir Bitton's avatar Ofir Bitton Committed by Oded Gabbay
Browse files

habanalabs: support fetching first available user CQ 



User must be aware of the available CQs when it needs to use them.

Signed-off-by: default avatarOfir Bitton <obitton@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 5dbd7b4d

drivers/misc/habanalabs/common/habanalabs.h

+2 −0
Original line number Diff line number Diff line
@@ -411,6 +411,7 @@ struct hl_mmu_properties { 
 * @first_available_user_mon: first monitor available for the user

 * @first_available_user_msix_interrupt: first available msix interrupt

 *                                       reserved for the user

 * @first_available_cq: first available CQ for the user.

 * @tpc_enabled_mask: which TPCs are enabled.

 * @completion_queues_count: number of completion queues.

 * @fw_security_disabled: true if security measures are disabled in firmware,
@@ -475,6 +476,7 @@ struct asic_fixed_properties { 
	u16				first_available_user_sob[HL_MAX_DCORES];

	u16				first_available_user_mon[HL_MAX_DCORES];

	u16				first_available_user_msix_interrupt;

	u16				first_available_cq[HL_MAX_DCORES];

	u8				tpc_enabled_mask;

	u8				completion_queues_count;

	u8				fw_security_disabled;

drivers/misc/habanalabs/common/habanalabs_ioctl.c

+2 −1
Original line number Diff line number Diff line
@@ -397,7 +397,8 @@ static int sync_manager_info(struct hl_fpriv *hpriv, struct hl_info_args *args) 
			prop->first_available_user_sob[args->dcore_id];

	sm_info.first_available_monitor =

			prop->first_available_user_mon[args->dcore_id];



	sm_info.first_available_cq =

			prop->first_available_cq[args->dcore_id];



	return copy_to_user(out, &sm_info, min_t(size_t, (size_t) max_size,

			sizeof(sm_info))) ? -EFAULT : 0;

drivers/misc/habanalabs/gaudi/gaudi.c

+3 −0
Original line number Diff line number Diff line
@@ -529,6 +529,9 @@ static int gaudi_get_fixed_properties(struct hl_device *hdev) 


	prop->first_available_user_msix_interrupt = USHRT_MAX;



	for (i = 0 ; i < HL_MAX_DCORES ; i++)

		prop->first_available_cq[i] = USHRT_MAX;



	/* disable fw security for now, set it in a later stage */

	prop->fw_security_disabled = true;

	prop->fw_security_status_valid = false;

drivers/misc/habanalabs/goya/goya.c

+3 −0
Original line number Diff line number Diff line
@@ -457,6 +457,9 @@ int goya_get_fixed_properties(struct hl_device *hdev) 


	prop->first_available_user_msix_interrupt = USHRT_MAX;



	for (i = 0 ; i < HL_MAX_DCORES ; i++)

		prop->first_available_cq[i] = USHRT_MAX;



	/* disable fw security for now, set it in a later stage */

	prop->fw_security_disabled = true;

	prop->fw_security_status_valid = false;

include/uapi/misc/habanalabs.h

+3 −0
Original line number Diff line number Diff line
@@ -414,10 +414,13 @@ struct hl_pll_frequency_info { 
 * struct hl_info_sync_manager - sync manager information

 * @first_available_sync_object: first available sob

 * @first_available_monitor: first available monitor

 * @first_available_cq: first available cq

 */

struct hl_info_sync_manager {

	__u32 first_available_sync_object;

	__u32 first_available_monitor;

	__u32 first_available_cq;

	__u32 reserved;

};



/**