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habanalabs: add DRAM default page size to HW info

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

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ohad Sharabi 2022-02-23 11:47:05 +02:00 committed by Greg Kroah-Hartman
parent 378b02dc01
commit 1359fcbe0f
2 changed files with 4 additions and 0 deletions
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1
drivers/misc/habanalabs/common/habanalabs_ioctl.c
View File

@ -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,

3
include/uapi/misc/habanalabs.h
View File

@ -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 {