Commit 1359fcbe authored by Ohad Sharabi's avatar Ohad Sharabi Committed by Greg Kroah-Hartman
Browse files

habanalabs: add DRAM default page size to HW info 



When using the device memory allocation API the user ought to know what
is the default allocation page size.

Signed-off-by: default avatarOhad Sharabi <osharabi@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 378b02dc

drivers/misc/habanalabs/common/habanalabs_ioctl.c

+1 −0
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args) 
	if (hw_ip.dram_size > PAGE_SIZE)

		hw_ip.dram_enabled = 1;

	hw_ip.dram_page_size = prop->dram_page_size;

	hw_ip.device_mem_alloc_default_page_size = prop->device_mem_alloc_default_page_size;

	hw_ip.num_of_events = prop->num_of_events;



	memcpy(hw_ip.cpucp_version, prop->cpucp_info.cpucp_version,

include/uapi/misc/habanalabs.h

+3 −0
Original line number Diff line number Diff line
@@ -409,6 +409,7 @@ enum hl_server_type { 
 * @dram_page_size: The DRAM physical page size.

 * @number_of_user_interrupts: The number of interrupts that are available to the userspace

 *                             application to use. Relevant for Gaudi2 and later.

 * @device_mem_alloc_default_page_size: default page size used in device memory allocation.

 */

struct hl_info_hw_ip_info {

	__u64 sram_base_address;
@@ -436,6 +437,8 @@ struct hl_info_hw_ip_info { 
	__u32 reserved3;

	__u16 number_of_user_interrupts;

	__u16 pad2;

	__u64 reserved4;

	__u64 device_mem_alloc_default_page_size;

};



struct hl_info_dram_usage {