161 lines
3.9 KiB
C
161 lines
3.9 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#include "xe_module.h"
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#include <linux/init.h>
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#include <linux/module.h>
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#include <drm/drm_module.h>
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#include "xe_drv.h"
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#include "xe_hw_fence.h"
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#include "xe_pci.h"
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#include "xe_pm.h"
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#include "xe_observation.h"
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#include "xe_sched_job.h"
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struct xe_modparam xe_modparam = {
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.probe_display = true,
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.guc_log_level = 5,
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.force_probe = CONFIG_DRM_XE_FORCE_PROBE,
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.wedged_mode = 1,
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/* the rest are 0 by default */
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};
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module_param_named_unsafe(force_execlist, xe_modparam.force_execlist, bool, 0444);
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MODULE_PARM_DESC(force_execlist, "Force Execlist submission");
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module_param_named(probe_display, xe_modparam.probe_display, bool, 0444);
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MODULE_PARM_DESC(probe_display, "Probe display HW, otherwise it's left untouched (default: true)");
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module_param_named(vram_bar_size, xe_modparam.force_vram_bar_size, uint, 0600);
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MODULE_PARM_DESC(vram_bar_size, "Set the vram bar size(in MiB)");
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module_param_named(guc_log_level, xe_modparam.guc_log_level, int, 0600);
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MODULE_PARM_DESC(guc_log_level, "GuC firmware logging level (0=disable, 1..5=enable with verbosity min..max)");
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module_param_named_unsafe(guc_firmware_path, xe_modparam.guc_firmware_path, charp, 0400);
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MODULE_PARM_DESC(guc_firmware_path,
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"GuC firmware path to use instead of the default one");
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module_param_named_unsafe(huc_firmware_path, xe_modparam.huc_firmware_path, charp, 0400);
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MODULE_PARM_DESC(huc_firmware_path,
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"HuC firmware path to use instead of the default one - empty string disables");
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module_param_named_unsafe(gsc_firmware_path, xe_modparam.gsc_firmware_path, charp, 0400);
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MODULE_PARM_DESC(gsc_firmware_path,
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"GSC firmware path to use instead of the default one - empty string disables");
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module_param_named_unsafe(force_probe, xe_modparam.force_probe, charp, 0400);
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MODULE_PARM_DESC(force_probe,
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"Force probe options for specified devices. See CONFIG_DRM_XE_FORCE_PROBE for details.");
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#ifdef CONFIG_PCI_IOV
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module_param_named(max_vfs, xe_modparam.max_vfs, uint, 0400);
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MODULE_PARM_DESC(max_vfs,
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"Limit number of Virtual Functions (VFs) that could be managed. "
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"(0 = no VFs [default]; N = allow up to N VFs)");
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#endif
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module_param_named_unsafe(wedged_mode, xe_modparam.wedged_mode, int, 0600);
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MODULE_PARM_DESC(wedged_mode,
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"Module's default policy for the wedged mode - 0=never, 1=upon-critical-errors[default], 2=upon-any-hang");
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static int xe_check_nomodeset(void)
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{
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if (drm_firmware_drivers_only())
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return -ENODEV;
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return 0;
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}
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struct init_funcs {
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int (*init)(void);
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void (*exit)(void);
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};
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static void xe_dummy_exit(void)
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{
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}
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static const struct init_funcs init_funcs[] = {
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{
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.init = xe_check_nomodeset,
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},
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{
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.init = xe_hw_fence_module_init,
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.exit = xe_hw_fence_module_exit,
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},
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{
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.init = xe_sched_job_module_init,
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.exit = xe_sched_job_module_exit,
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},
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{
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.init = xe_register_pci_driver,
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.exit = xe_unregister_pci_driver,
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},
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{
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.init = xe_observation_sysctl_register,
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.exit = xe_observation_sysctl_unregister,
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},
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{
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.init = xe_pm_module_init,
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.exit = xe_dummy_exit,
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},
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};
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static int __init xe_call_init_func(unsigned int i)
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{
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if (WARN_ON(i >= ARRAY_SIZE(init_funcs)))
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return 0;
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if (!init_funcs[i].init)
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return 0;
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return init_funcs[i].init();
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}
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static void xe_call_exit_func(unsigned int i)
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{
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if (WARN_ON(i >= ARRAY_SIZE(init_funcs)))
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return;
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if (!init_funcs[i].exit)
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return;
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init_funcs[i].exit();
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}
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static int __init xe_init(void)
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{
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int err, i;
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for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {
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err = xe_call_init_func(i);
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if (err) {
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while (i--)
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xe_call_exit_func(i);
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return err;
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}
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}
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return 0;
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}
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static void __exit xe_exit(void)
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{
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int i;
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for (i = ARRAY_SIZE(init_funcs) - 1; i >= 0; i--)
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xe_call_exit_func(i);
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}
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module_init(xe_init);
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module_exit(xe_exit);
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MODULE_AUTHOR("Intel Corporation");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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