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habanalabs: return dram virtual address in info ioctl

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When working with DRAM MMU, we should supply the userspace with the
virtual start address of the DRAM instead of the physical one. This
is because the physical one has no meaning for the user as he only
knows the virtual address range.

Signed-off-by: Alon Mizrahi <amizrahi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Alon Mizrahi 2020-12-23 17:53:17 +02:00 committed by Oded Gabbay
parent 3abe1040ba
commit 9402a33624
1 changed files with 3 additions and 1 deletions
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4
drivers/misc/habanalabs/common/habanalabs_ioctl.c
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@ -57,7 +57,9 @@ static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args)
hw_ip.device_id = hdev->asic_funcs->get_pci_id(hdev);
hw_ip.sram_base_address = prop->sram_user_base_address;
hw_ip.dram_base_address = prop->dram_user_base_address;
hw_ip.dram_base_address =
hdev->mmu_enable && prop->dram_supports_virtual_memory ?
prop->dmmu.start_addr : prop->dram_user_base_address;
hw_ip.tpc_enabled_mask = prop->tpc_enabled_mask;
hw_ip.sram_size = prop->sram_size - sram_kmd_size;
hw_ip.dram_size = prop->dram_size - dram_kmd_size;