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307159f2623d3bf45feb9177bd2da52ffbc5ddf9
open-gpu-kernel-modules/kernel-open/nvidia-drm/nvidia-drm-helper.h
Maneet Singh 307159f262 580.65.06
2025-08-04 11:15:02 -07:00

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/*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __NVIDIA_DRM_HELPER_H__
#define __NVIDIA_DRM_HELPER_H__
#include "nvidia-drm-conftest.h"
#if defined(NV_DRM_AVAILABLE)
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#include <drm/drm_drv.h>
#if defined(NV_DRM_ALPHA_BLENDING_AVAILABLE)
#include <drm/drm_blend.h>
#endif
/*
* For DRM_MODE_ROTATE_*, DRM_MODE_REFLECT_*, struct drm_color_ctm_3x4, and
* struct drm_color_lut.
*/
#include <uapi/drm/drm_mode.h>
/*
* Commit 1e13c5644c44 ("drm/drm_mode_object: increase max objects to
* accommodate new color props") in Linux v6.8 increased the pre-object
* property limit to from 24 to 64.
*/
#define NV_DRM_USE_EXTENDED_PROPERTIES (DRM_OBJECT_MAX_PROPERTY >= 64)
#include <drm/drm_prime.h>
static inline struct sg_table*
nv_drm_prime_pages_to_sg(struct drm_device *dev,
struct page **pages, unsigned int nr_pages)
{
#if defined(NV_DRM_PRIME_PAGES_TO_SG_HAS_DRM_DEVICE_ARG)
return drm_prime_pages_to_sg(dev, pages, nr_pages);
#else
return drm_prime_pages_to_sg(pages, nr_pages);
#endif
}
/*
* drm_for_each_connector(), drm_for_each_crtc(), drm_for_each_fb(),
* drm_for_each_encoder and drm_for_each_plane() were added by kernel
* commit 6295d607ad34ee4e43aab3f20714c2ef7a6adea1 which was
* Signed-off-by:
* Daniel Vetter <daniel.vetter@intel.com>
* drm_for_each_connector(), drm_for_each_crtc(), drm_for_each_fb(),
* drm_for_each_encoder and drm_for_each_plane() are copied from
* include/drm/drm_crtc @
* 6295d607ad34ee4e43aab3f20714c2ef7a6adea1
* which has the following copyright and license information:
*
* Copyright © 2006 Keith Packard
* Copyright © 2007-2008 Dave Airlie
* Copyright © 2007-2008 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <drm/drm_crtc.h>
#if defined(drm_for_each_plane)
#define nv_drm_for_each_plane(plane, dev) \
drm_for_each_plane(plane, dev)
#else
#define nv_drm_for_each_plane(plane, dev) \
list_for_each_entry(plane, &(dev)->mode_config.plane_list, head)
#endif
#if defined(drm_for_each_crtc)
#define nv_drm_for_each_crtc(crtc, dev) \
drm_for_each_crtc(crtc, dev)
#else
#define nv_drm_for_each_crtc(crtc, dev) \
list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
#endif
#if defined(drm_for_each_encoder)
#define nv_drm_for_each_encoder(encoder, dev) \
drm_for_each_encoder(encoder, dev)
#else
#define nv_drm_for_each_encoder(encoder, dev) \
list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head)
#endif
#if defined(drm_for_each_fb)
#define nv_drm_for_each_fb(fb, dev) \
drm_for_each_fb(fb, dev)
#else
#define nv_drm_for_each_fb(fb, dev) \
list_for_each_entry(fb, &(dev)->mode_config.fb_list, head)
#endif
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
int nv_drm_atomic_helper_disable_all(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx);
/*
* for_each_connector_in_state(), for_each_crtc_in_state() and
* for_each_plane_in_state() were added by kernel commit
* df63b9994eaf942afcdb946d27a28661d7dfbf2a which was Signed-off-by:
* Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
* Daniel Vetter <daniel.vetter@ffwll.ch>
*
* for_each_connector_in_state(), for_each_crtc_in_state() and
* for_each_plane_in_state() were copied from
* include/drm/drm_atomic.h @
* 21a01abbe32a3cbeb903378a24e504bfd9fe0648
* which has the following copyright and license information:
*
* Copyright (C) 2014 Red Hat
* Copyright (C) 2014 Intel Corp.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Rob Clark <robdclark@gmail.com>
* Daniel Vetter <daniel.vetter@ffwll.ch>
*/
/**
* nv_drm_for_each_connector_in_state - iterate over all connectors in an
* atomic update
* @__state: &struct drm_atomic_state pointer
* @connector: &struct drm_connector iteration cursor
* @connector_state: &struct drm_connector_state iteration cursor
* @__i: int iteration cursor, for macro-internal use
*
* This iterates over all connectors in an atomic update. Note that before the
* software state is committed (by calling drm_atomic_helper_swap_state(), this
* points to the new state, while afterwards it points to the old state. Due to
* this tricky confusion this macro is deprecated.
*/
#if !defined(for_each_connector_in_state)
#define nv_drm_for_each_connector_in_state(__state, \
connector, connector_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->num_connector && \
((connector) = (__state)->connectors[__i].ptr, \
(connector_state) = (__state)->connectors[__i].state, 1); \
(__i)++) \
for_each_if (connector)
#else
#define nv_drm_for_each_connector_in_state(__state, \
connector, connector_state, __i) \
for_each_connector_in_state(__state, connector, connector_state, __i)
#endif
/**
* nv_drm_for_each_crtc_in_state - iterate over all CRTCs in an atomic update
* @__state: &struct drm_atomic_state pointer
* @crtc: &struct drm_crtc iteration cursor
* @crtc_state: &struct drm_crtc_state iteration cursor
* @__i: int iteration cursor, for macro-internal use
*
* This iterates over all CRTCs in an atomic update. Note that before the
* software state is committed (by calling drm_atomic_helper_swap_state(), this
* points to the new state, while afterwards it points to the old state. Due to
* this tricky confusion this macro is deprecated.
*/
#if !defined(for_each_crtc_in_state)
#define nv_drm_for_each_crtc_in_state(__state, crtc, crtc_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_crtc && \
((crtc) = (__state)->crtcs[__i].ptr, \
(crtc_state) = (__state)->crtcs[__i].state, 1); \
(__i)++) \
for_each_if (crtc_state)
#else
#define nv_drm_for_each_crtc_in_state(__state, crtc, crtc_state, __i) \
for_each_crtc_in_state(__state, crtc, crtc_state, __i)
#endif
/**
* nv_drm_for_each_plane_in_state - iterate over all planes in an atomic update
* @__state: &struct drm_atomic_state pointer
* @plane: &struct drm_plane iteration cursor
* @plane_state: &struct drm_plane_state iteration cursor
* @__i: int iteration cursor, for macro-internal use
*
* This iterates over all planes in an atomic update. Note that before the
* software state is committed (by calling drm_atomic_helper_swap_state(), this
* points to the new state, while afterwards it points to the old state. Due to
* this tricky confusion this macro is deprecated.
*/
#if !defined(for_each_plane_in_state)
#define nv_drm_for_each_plane_in_state(__state, plane, plane_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_total_plane && \
((plane) = (__state)->planes[__i].ptr, \
(plane_state) = (__state)->planes[__i].state, 1); \
(__i)++) \
for_each_if (plane_state)
#else
#define nv_drm_for_each_plane_in_state(__state, plane, plane_state, __i) \
for_each_plane_in_state(__state, plane, plane_state, __i)
#endif
/*
* for_each_new_plane_in_state() was added by kernel commit
* 581e49fe6b411f407102a7f2377648849e0fa37f which was Signed-off-by:
* Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
* Daniel Vetter <daniel.vetter@ffwll.ch>
*
* This commit also added the old_state and new_state pointers to
* __drm_planes_state. Because of this, the best that can be done on kernel
* versions without this macro is for_each_plane_in_state.
*/
/**
* nv_drm_for_each_new_plane_in_state - iterate over all planes in an atomic update
* @__state: &struct drm_atomic_state pointer
* @plane: &struct drm_plane iteration cursor
* @new_plane_state: &struct drm_plane_state iteration cursor for the new state
* @__i: int iteration cursor, for macro-internal use
*
* This iterates over all planes in an atomic update, tracking only the new
* state. This is useful in enable functions, where we need the new state the
* hardware should be in when the atomic commit operation has completed.
*/
#if !defined(for_each_new_plane_in_state)
#define nv_drm_for_each_new_plane_in_state(__state, plane, new_plane_state, __i) \
nv_drm_for_each_plane_in_state(__state, plane, new_plane_state, __i)
#else
#define nv_drm_for_each_new_plane_in_state(__state, plane, new_plane_state, __i) \
for_each_new_plane_in_state(__state, plane, new_plane_state, __i)
#endif
#include <drm/drm_auth.h>
#include <drm/drm_file.h>
/*
* drm_file_get_master() added by commit 56f0729a510f ("drm: protect drm_master
* pointers in drm_lease.c") in v5.15 (2021-07-20)
*/
static inline struct drm_master *nv_drm_file_get_master(struct drm_file *filep)
{
#if defined(NV_DRM_FILE_GET_MASTER_PRESENT)
return drm_file_get_master(filep);
#else
if (filep->master) {
return drm_master_get(filep->master);
} else {
return NULL;
}
#endif
}
/*
* drm_connector_for_each_possible_encoder() is added by commit
* 83aefbb887b59df0b3520965c3701e01deacfc52 which was Signed-off-by:
* Ville Syrjälä <ville.syrjala@linux.intel.com>
*
* drm_connector_for_each_possible_encoder() is copied from
* include/drm/drm_connector.h @
* 83aefbb887b59df0b3520965c3701e01deacfc52
* which has the following copyright and license information:
*
* Copyright (c) 2016 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <drm/drm_connector.h>
/**
* nv_drm_connector_for_each_possible_encoder - iterate connector's possible
* encoders
* @connector: &struct drm_connector pointer
* @encoder: &struct drm_encoder pointer used as cursor
* @__i: int iteration cursor, for macro-internal use
*/
#if !defined(drm_connector_for_each_possible_encoder)
#if !defined(for_each_if)
#define for_each_if(condition) if (!(condition)) {} else
#endif
#define __nv_drm_connector_for_each_possible_encoder(connector, encoder, __i) \
for ((__i) = 0; (__i) < ARRAY_SIZE((connector)->encoder_ids) && \
(connector)->encoder_ids[(__i)] != 0; (__i)++) \
for_each_if((encoder) = \
drm_encoder_find((connector)->dev, NULL, \
(connector)->encoder_ids[(__i)]))
#define nv_drm_connector_for_each_possible_encoder(connector, encoder) \
{ \
unsigned int __i; \
__nv_drm_connector_for_each_possible_encoder(connector, encoder, __i)
#define nv_drm_connector_for_each_possible_encoder_end \
}
#else
#if NV_DRM_CONNECTOR_FOR_EACH_POSSIBLE_ENCODER_ARGUMENT_COUNT == 3
#define nv_drm_connector_for_each_possible_encoder(connector, encoder) \
{ \
unsigned int __i; \
drm_connector_for_each_possible_encoder(connector, encoder, __i)
#define nv_drm_connector_for_each_possible_encoder_end \
}
#else
#define nv_drm_connector_for_each_possible_encoder(connector, encoder) \
drm_connector_for_each_possible_encoder(connector, encoder)
#define nv_drm_connector_for_each_possible_encoder_end
#endif
#endif
static inline int
nv_drm_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder)
{
#if defined(NV_DRM_CONNECTOR_FUNCS_HAVE_MODE_IN_NAME)
return drm_mode_connector_attach_encoder(connector, encoder);
#else
return drm_connector_attach_encoder(connector, encoder);
#endif
}
static inline int
nv_drm_connector_update_edid_property(struct drm_connector *connector,
const struct edid *edid)
{
#if defined(NV_DRM_CONNECTOR_FUNCS_HAVE_MODE_IN_NAME)
return drm_mode_connector_update_edid_property(connector, edid);
#else
return drm_connector_update_edid_property(connector, edid);
#endif
}
#include <drm/drm_fourcc.h>
static inline int nv_drm_format_num_planes(uint32_t format)
{
const struct drm_format_info *info = drm_format_info(format);
return info != NULL ? info->num_planes : 1;
}
/*
* DRM_FORMAT_MOD_VENDOR_NVIDIA was previously called
* DRM_FORMAT_MOD_VNEDOR_NV.
*/
#if !defined(DRM_FORMAT_MOD_VENDOR_NVIDIA)
#define DRM_FORMAT_MOD_VENDOR_NVIDIA DRM_FORMAT_MOD_VENDOR_NV
#endif
/*
* DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D is a relatively new addition to the
* upstream kernel headers compared to the other format modifiers.
*/
#if !defined(DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D)
#define DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(c, s, g, k, h) \
fourcc_mod_code(NVIDIA, (0x10 | \
((h) & 0xf) | \
(((k) & 0xff) << 12) | \
(((g) & 0x3) << 20) | \
(((s) & 0x1) << 22) | \
(((c) & 0x7) << 23)))
#endif
/*
* DRM_UNLOCKED was removed with commit 2798ffcc1d6a ("drm: Remove locking for
* legacy ioctls and DRM_UNLOCKED") in v6.8, but it was previously made
* implicit for all non-legacy DRM driver IOCTLs since Linux v4.10 commit
* fa5386459f06 "drm: Used DRM_LEGACY for all legacy functions" (Linux v4.4
* commit ea487835e887 "drm: Enforce unlocked ioctl operation for kms driver
* ioctls" previously did it only for drivers that set the DRM_MODESET flag), so
* it was effectively a no-op anyway.
*/
#if !defined(NV_DRM_UNLOCKED_IOCTL_FLAG_PRESENT)
#define DRM_UNLOCKED 0
#endif
/*
* struct drm_color_ctm_3x4 was added by commit 6872a189be50 ("drm/amd/display:
* Add 3x4 CTM support for plane CTM") in v6.8. For backwards compatibility,
* define it when not present.
*/
#if !defined(NV_DRM_COLOR_CTM_3X4_PRESENT)
struct drm_color_ctm_3x4 {
__u64 matrix[12];
};
#endif
#endif /* defined(NV_DRM_AVAILABLE) */
#endif /* __NVIDIA_DRM_HELPER_H__ */
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