drm/xe/xe_sriov.c

1 // SPDX-License-Identifier: MIT
10  * xe_sriov_mode_to_string - Convert enum value to string.
11  * @mode: the &xe_sriov_mode to convert
13  * Returns: SR-IOV mode as a user friendly string.
15 const char *xe_sriov_mode_to_string(enum xe_sriov_mode mode)  in xe_sriov_mode_to_string()  argument
17 	switch (mode) {  in xe_sriov_mode_to_string()
21 		return "SR-IOV PF";  in xe_sriov_mode_to_string()
23 		return "SR-IOV VF";  in xe_sriov_mode_to_string()
30  * xe_sriov_probe_early - Probe a SR-IOV mode.
31  * @xe: the &xe_device to probe mode on
32  * @has_sriov: flag indicating hardware support for SR-IOV
35  * driver probe to detect whether we are running a SR-IOV Physical Function
38  * SR-IOV PF mode detection is based on PCI @dev_is_pf() function.
39  * SR-IOV VF mode detection is based on dedicated MMIO register read.
43 	enum xe_sriov_mode mode = XE_SRIOV_MODE_NONE;  in xe_sriov_probe_early()  local
45 	/* TODO: replace with proper mode detection */  in xe_sriov_probe_early()
48 	xe_assert(xe, !xe->sriov.__mode);  in xe_sriov_probe_early()
49 	xe->sriov.__mode = mode;  in xe_sriov_probe_early()
50 	xe_assert(xe, xe->sriov.__mode);  in xe_sriov_probe_early()
53 		drm_info(&xe->drm, "Running in %s mode\n",  in xe_sriov_probe_early()