1/*	$NetBSD: i915_params.h,v 1.2 2021/12/18 23:45:28 riastradh Exp $	*/
2
3/*
4 * Copyright �� 2015 Intel Corporation
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23 * IN THE SOFTWARE.
24 *
25 */
26
27#ifndef _I915_PARAMS_H_
28#define _I915_PARAMS_H_
29
30#include <linux/bitops.h>
31#include <linux/cache.h> /* for __read_mostly */
32
33struct drm_printer;
34
35#define ENABLE_GUC_SUBMISSION		BIT(0)
36#define ENABLE_GUC_LOAD_HUC		BIT(1)
37
38/*
39 * Invoke param, a function-like macro, for each i915 param, with arguments:
40 *
41 * param(type, name, value)
42 *
43 * type: parameter type, one of {bool, int, unsigned int, char *}
44 * name: name of the parameter
45 * value: initial/default value of the parameter
46 */
47#define I915_PARAMS_FOR_EACH(param) \
48	param(char *, vbt_firmware, NULL) \
49	param(int, modeset, -1) \
50	param(int, lvds_channel_mode, 0) \
51	param(int, panel_use_ssc, -1) \
52	param(int, vbt_sdvo_panel_type, -1) \
53	param(int, enable_dc, -1) \
54	param(int, enable_fbc, -1) \
55	param(int, enable_psr, -1) \
56	param(int, disable_power_well, -1) \
57	param(int, enable_ips, 1) \
58	param(int, invert_brightness, 0) \
59	param(int, enable_guc, 0) \
60	param(int, guc_log_level, -1) \
61	param(char *, guc_firmware_path, NULL) \
62	param(char *, huc_firmware_path, NULL) \
63	param(char *, dmc_firmware_path, NULL) \
64	param(int, mmio_debug, -IS_ENABLED(CONFIG_DRM_I915_DEBUG_MMIO)) \
65	param(int, edp_vswing, 0) \
66	param(int, reset, 3) \
67	param(unsigned int, inject_probe_failure, 0) \
68	param(int, fastboot, -1) \
69	param(int, enable_dpcd_backlight, 0) \
70	param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE) \
71	param(unsigned long, fake_lmem_start, 0) \
72	/* leave bools at the end to not create holes */ \
73	param(bool, alpha_support, IS_ENABLED(CONFIG_DRM_I915_ALPHA_SUPPORT)) \
74	param(bool, enable_hangcheck, true) \
75	param(bool, prefault_disable, false) \
76	param(bool, load_detect_test, false) \
77	param(bool, force_reset_modeset_test, false) \
78	param(bool, error_capture, true) \
79	param(bool, disable_display, false) \
80	param(bool, verbose_state_checks, true) \
81	param(bool, nuclear_pageflip, false) \
82	param(bool, enable_dp_mst, true) \
83	param(bool, enable_gvt, false)
84
85#define MEMBER(T, member, ...) T member;
86struct i915_params {
87	I915_PARAMS_FOR_EACH(MEMBER);
88};
89#undef MEMBER
90
91extern struct i915_params i915_modparams __read_mostly;
92
93void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
94void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
95void i915_params_free(struct i915_params *params);
96
97#endif
98
99