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Move DisplayPort functions into a separate module to reduce the size of the KMS helpers. Select DRM_DP_HELPER for all users of the code. To avoid naming conflicts, rename drm_dp_helper.c to drm_dp.c This change can help to reduce the size of the kernel binary. Some numbers from a x86-64 test build: Before: drm_kms_helper.ko: 447480 bytes After: drm_dp_helper.ko: 216632 bytes drm_kms_helper.ko: 239424 bytes For early-boot graphics, generic DRM drivers, such as simpledrm, require DRM KMS helpers to be built into the kernel. Generic helper functions for DisplayPort take up a significant portion of DRM KMS helper library. These functions are not used by generic drivers and can be loaded as a module. v3: * fix include statement in DRM selftests v2: * move DP helper code into dp/ (Jani) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Lyude Paul <lyude@redhat.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220114114535.29157-4-tzimmermann@suse.de
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
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* Copyright © 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Rafael Antognolli <rafael.antognolli@intel.com>
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*
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*/
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#include <linux/module.h>
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#include <drm/drm_print.h>
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#include "drm_crtc_helper_internal.h"
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MODULE_AUTHOR("David Airlie, Jesse Barnes");
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MODULE_DESCRIPTION("DRM KMS helper");
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MODULE_LICENSE("GPL and additional rights");
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#if IS_ENABLED(CONFIG_DRM_LOAD_EDID_FIRMWARE)
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/* Backward compatibility for drm_kms_helper.edid_firmware */
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static int edid_firmware_set(const char *val, const struct kernel_param *kp)
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{
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DRM_NOTE("drm_kms_helper.edid_firmware is deprecated, please use drm.edid_firmware instead.\n");
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return __drm_set_edid_firmware_path(val);
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}
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static int edid_firmware_get(char *buffer, const struct kernel_param *kp)
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{
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return __drm_get_edid_firmware_path(buffer, PAGE_SIZE);
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}
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static const struct kernel_param_ops edid_firmware_ops = {
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.set = edid_firmware_set,
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.get = edid_firmware_get,
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};
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module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644);
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__MODULE_PARM_TYPE(edid_firmware, "charp");
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MODULE_PARM_DESC(edid_firmware,
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"DEPRECATED. Use drm.edid_firmware module parameter instead.");
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#endif
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