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1/*2 * Copyright © 2015 Intel Corporation3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice (including the next12 * paragraph) shall be included in all copies or substantial portions of the13 * Software.14 *15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS21 * IN THE SOFTWARE.22 *23 */24 25#ifndef _I915_PARAMS_H_26#define _I915_PARAMS_H_27 28#include <linux/bitops.h>29#include <linux/cache.h> /* for __read_mostly */30 31struct drm_printer;32 33#define ENABLE_GUC_SUBMISSION BIT(0)34#define ENABLE_GUC_LOAD_HUC BIT(1)35#define ENABLE_GUC_MASK GENMASK(1, 0)36 37/*38 * Invoke param, a function-like macro, for each i915 param, with arguments:39 *40 * param(type, name, value, mode)41 *42 * type: parameter type, one of {bool, int, unsigned int, unsigned long, char *}43 * name: name of the parameter44 * value: initial/default value of the parameter45 * mode: debugfs file permissions, one of {0400, 0600, 0}, use 0 to not create46 * debugfs file47 */48#define I915_PARAMS_FOR_EACH(param) \49 param(int, modeset, -1, 0400) \50 param(int, enable_guc, -1, 0400) \51 param(int, guc_log_level, -1, 0400) \52 param(char *, guc_firmware_path, NULL, 0400) \53 param(char *, huc_firmware_path, NULL, 0400) \54 param(char *, gsc_firmware_path, NULL, 0400) \55 param(bool, memtest, false, 0400) \56 param(int, mmio_debug, -IS_ENABLED(CONFIG_DRM_I915_DEBUG_MMIO), 0600) \57 param(unsigned int, reset, 3, 0600) \58 param(unsigned int, inject_probe_failure, 0, 0) \59 param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \60 param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \61 param(unsigned int, lmem_size, 0, 0400) \62 param(unsigned int, lmem_bar_size, 0, 0400) \63 /* leave bools at the end to not create holes */ \64 param(bool, enable_hangcheck, true, 0600) \65 param(bool, error_capture, true, IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) ? 0600 : 0) \66 param(bool, enable_gvt, false, IS_ENABLED(CONFIG_DRM_I915_GVT) ? 0400 : 0) \67 param(bool, enable_debug_only_api, false, IS_ENABLED(CONFIG_DRM_I915_REPLAY_GPU_HANGS_API) ? 0400 : 0)68 69#define MEMBER(T, member, ...) T member;70struct i915_params {71 I915_PARAMS_FOR_EACH(MEMBER);72};73#undef MEMBER74 75extern struct i915_params i915_modparams __read_mostly;76 77void i915_params_dump(const struct i915_params *params, struct drm_printer *p);78void i915_params_copy(struct i915_params *dest, const struct i915_params *src);79void i915_params_free(struct i915_params *params);80 81#endif82