From: Alon Mizrahi Date: Wed, 23 Dec 2020 15:53:17 +0000 (+0200) Subject: habanalabs: return dram virtual address in info ioctl X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9402a3362462d080b998e00ed33fc193c12adbbf;p=linux.git habanalabs: return dram virtual address in info ioctl 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 Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- diff --git a/drivers/misc/habanalabs/common/habanalabs_ioctl.c b/drivers/misc/habanalabs/common/habanalabs_ioctl.c index 394a2e1767ce4..018320e0331b8 100644 --- a/drivers/misc/habanalabs/common/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/common/habanalabs_ioctl.c @@ -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;