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nvidia-open-gpu-kernel-modules/kernel-open/nvidia-drm/nvidia-drm-helper.h

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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
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
#if defined(NV_DRM_ALPHA_BLENDING_AVAILABLE) || defined(NV_DRM_ROTATION_AVAILABLE)
/* For DRM_ROTATE_* , DRM_REFLECT_* */
#include <drm/drm_blend.h>
#endif
#if defined(NV_DRM_ROTATION_AVAILABLE)
/* For DRM_MODE_ROTATE_* and DRM_MODE_REFLECT_* */
#include <uapi/drm/drm_mode.h>
#endif
#if defined(NV_DRM_ROTATION_AVAILABLE)
/*
* 19-05-2017 c2c446ad29437bb92b157423c632286608ebd3ec has added
* DRM_MODE_ROTATE_* and DRM_MODE_REFLECT_* to UAPI and removed
* DRM_ROTATE_* and DRM_REFLECT_*
*/
#if !defined(DRM_MODE_ROTATE_0)
#define DRM_MODE_ROTATE_0 DRM_ROTATE_0
#define DRM_MODE_ROTATE_90 DRM_ROTATE_90
#define DRM_MODE_ROTATE_180 DRM_ROTATE_180
#define DRM_MODE_ROTATE_270 DRM_ROTATE_270
#define DRM_MODE_REFLECT_X DRM_REFLECT_X
#define DRM_MODE_REFLECT_Y DRM_REFLECT_Y
#define DRM_MODE_ROTATE_MASK DRM_ROTATE_MASK
#define DRM_MODE_REFLECT_MASK DRM_REFLECT_MASK
#endif
#endif //NV_DRM_ROTATION_AVAILABLE
/*
* drm_dev_put() is added by commit 9a96f55034e41b4e002b767e9218d55f03bdff7d
* (2017-09-26) and drm_dev_unref() is removed by
* ba1d345401476a5f7fbad622607c5a1f95e59b31 (2018-11-15).
*
* drm_dev_unref() has been added and drm_dev_free() removed by commit -
*
* 2014-01-29: 099d1c290e2ebc3b798961a6c177c3aef5f0b789
*/
static inline void nv_drm_dev_free(struct drm_device *dev)
{
#if defined(NV_DRM_DEV_PUT_PRESENT)
drm_dev_put(dev);
#elif defined(NV_DRM_DEV_UNREF_PRESENT)
drm_dev_unref(dev);
#else
drm_dev_free(dev);
#endif
}
#if defined(NV_DRM_DRM_PRIME_H_PRESENT)
#include <drm/drm_prime.h>
#endif
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
}
#if defined(NV_DRM_ATOMIC_MODESET_AVAILABLE)
/*
* 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(NV_DRM_CONNECTOR_LIST_ITER_PRESENT)
#define nv_drm_for_each_connector(connector, conn_iter, dev) \
drm_for_each_connector_iter(connector, conn_iter)
#elif defined(drm_for_each_connector)
#define nv_drm_for_each_connector(connector, conn_iter, dev) \
drm_for_each_connector(connector, dev)
#else
#define nv_drm_for_each_connector(connector, conn_iter, dev) \
WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); \
list_for_each_entry(connector, &(dev)->mode_config.connector_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
static inline struct drm_connector *
nv_drm_connector_lookup(struct drm_device *dev, struct drm_file *filep,
uint32_t id)
{
#if !defined(NV_DRM_CONNECTOR_LOOKUP_PRESENT)
return drm_connector_find(dev, id);
#elif defined(NV_DRM_MODE_OBJECT_FIND_HAS_FILE_PRIV_ARG)
return drm_connector_lookup(dev, filep, id);
#else
return drm_connector_lookup(dev, id);
#endif
}
static inline void nv_drm_connector_put(struct drm_connector *connector)
{
#if defined(NV_DRM_CONNECTOR_PUT_PRESENT)
drm_connector_put(connector);
#elif defined(NV_DRM_CONNECTOR_LOOKUP_PRESENT)
drm_connector_unreference(connector);
#endif
}
static inline struct drm_crtc *
nv_drm_crtc_find(struct drm_device *dev, struct drm_file *filep, uint32_t id)
{
#if defined(NV_DRM_MODE_OBJECT_FIND_HAS_FILE_PRIV_ARG)
return drm_crtc_find(dev, filep, id);
#else
return drm_crtc_find(dev, id);
#endif
}
static inline struct drm_encoder *nv_drm_encoder_find(struct drm_device *dev,
uint32_t id)
{
#if defined(NV_DRM_MODE_OBJECT_FIND_HAS_FILE_PRIV_ARG)
return drm_encoder_find(dev, NULL /* file_priv */, id);
#else
return drm_encoder_find(dev, id);
#endif
}
#if defined(NV_DRM_DRM_AUTH_H_PRESENT)
#include <drm/drm_auth.h>
#endif
#if defined(NV_DRM_DRM_FILE_H_PRESENT)
#include <drm/drm_file.h>
#endif
/*
* 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 and modified to use nv_drm_encoder_find()
* instead of drm_encoder_find().
*
* 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.
*/
#if defined(NV_DRM_DRM_CONNECTOR_H_PRESENT)
#include <drm/drm_connector.h>
#endif
/**
* 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) = \
nv_drm_encoder_find((connector)->dev, \
(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
}
#if defined(NV_DRM_CONNECTOR_LIST_ITER_PRESENT)
#include <drm/drm_connector.h>
static inline
void nv_drm_connector_list_iter_begin(struct drm_device *dev,
struct drm_connector_list_iter *iter)
{
#if defined(NV_DRM_CONNECTOR_LIST_ITER_BEGIN_PRESENT)
drm_connector_list_iter_begin(dev, iter);
#else
drm_connector_list_iter_get(dev, iter);
#endif
}
static inline
void nv_drm_connector_list_iter_end(struct drm_connector_list_iter *iter)
{
#if defined(NV_DRM_CONNECTOR_LIST_ITER_BEGIN_PRESENT)
drm_connector_list_iter_end(iter);
#else
drm_connector_list_iter_put(iter);
#endif
}
#endif
/*
* The drm_format_num_planes() function was added by commit d0d110e09629 drm:
* Add drm_format_num_planes() utility function in v3.3 (2011-12-20). Prototype
* was moved from drm_crtc.h to drm_fourcc.h by commit ae4df11a0f53 (drm: Move
* format-related helpers to drm_fourcc.c) in v4.8 (2016-06-09).
* drm_format_num_planes() has been removed by commit 05c452c115bf (drm: Remove
* users of drm_format_num_planes) in v5.3 (2019-05-16).
*
* drm_format_info() is available only from v4.10 (2016-10-18), added by commit
* 84770cc24f3a (drm: Centralize format information).
*/
#include <drm/drm_crtc.h>
#include <drm/drm_fourcc.h>
static inline int nv_drm_format_num_planes(uint32_t format)
{
#if defined(NV_DRM_FORMAT_NUM_PLANES_PRESENT)
return drm_format_num_planes(format);
#else
const struct drm_format_info *info = drm_format_info(format);
return info != NULL ? info->num_planes : 1;
#endif
}
#if defined(NV_DRM_FORMAT_MODIFIERS_PRESENT)
/*
* DRM_FORMAT_MOD_LINEAR was also defined after the original modifier support
* was added to the kernel, as a more explicit alias of DRM_FORMAT_MOD_NONE
*/
#if !defined(DRM_FORMAT_MOD_VENDOR_NONE)
#define DRM_FORMAT_MOD_VENDOR_NONE 0
#endif
#if !defined(DRM_FORMAT_MOD_LINEAR)
#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0)
#endif
/*
* DRM_FORMAT_MOD_INVALID was defined after the original modifier support was
* added to the kernel, for use as a sentinel value.
*/
#if !defined(DRM_FORMAT_RESERVED)
#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1)
#endif
#if !defined(DRM_FORMAT_MOD_INVALID)
#define DRM_FORMAT_MOD_INVALID fourcc_mod_code(NONE, DRM_FORMAT_RESERVED)
#endif
/*
* 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
#endif /* defined(NV_DRM_FORMAT_MODIFIERS_PRESENT) */
/*
* 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
/*
* drm_vma_offset_exact_lookup_locked() were added
* by kernel commit 2225cfe46bcc which was Signed-off-by:
* Daniel Vetter <daniel.vetter@intel.com>
*
* drm_vma_offset_exact_lookup_locked() were copied from
* include/drm/drm_vma_manager.h @ 2225cfe46bcc
* which has the following copyright and license information:
*
* Copyright (c) 2013 David Herrmann <dh.herrmann@gmail.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_vma_manager.h>
/**
* nv_drm_vma_offset_exact_lookup_locked() - Look up node by exact address
* @mgr: Manager object
* @start: Start address (page-based, not byte-based)
* @pages: Size of object (page-based)
*
* Same as drm_vma_offset_lookup_locked() but does not allow any offset into the node.
* It only returns the exact object with the given start address.
*
* RETURNS:
* Node at exact start address @start.
*/
static inline struct drm_vma_offset_node *
nv_drm_vma_offset_exact_lookup_locked(struct drm_vma_offset_manager *mgr,
unsigned long start,
unsigned long pages)
{
#if defined(NV_DRM_VMA_OFFSET_EXACT_LOOKUP_LOCKED_PRESENT)
return drm_vma_offset_exact_lookup_locked(mgr, start, pages);
#else
struct drm_vma_offset_node *node;
node = drm_vma_offset_lookup_locked(mgr, start, pages);
return (node && node->vm_node.start == start) ? node : NULL;
#endif
}
static inline bool
nv_drm_vma_node_is_allowed(struct drm_vma_offset_node *node,
struct file *filp)
{
#if defined(NV_DRM_VMA_NODE_IS_ALLOWED_HAS_TAG_ARG)
return drm_vma_node_is_allowed(node, filp->private_data);
#else
return drm_vma_node_is_allowed(node, filp);
#endif
}
#endif /* defined(NV_DRM_ATOMIC_MODESET_AVAILABLE) */
#endif /* defined(NV_DRM_AVAILABLE) */
#endif /* __NVIDIA_DRM_HELPER_H__ */
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