Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 1 | /* |
Mahesh Aia | f695665 | 2021-08-19 07:48:22 -0700 | [diff] [blame] | 2 | * Copyright (c) 2017 - 2018, 2021 The Linux Foundation. All rights reserved. |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are |
| 6 | * met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above |
| 10 | * copyright notice, this list of conditions and the following |
| 11 | * disclaimer in the documentation and/or other materials provided |
| 12 | * with the distribution. |
| 13 | * * Neither the name of The Linux Foundation nor the names of its |
| 14 | * contributors may be used to endorse or promote products derived |
| 15 | * from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 21 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 22 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 23 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 24 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 25 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 26 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 27 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #include <errno.h> |
| 31 | #include <fcntl.h> |
| 32 | #include <sys/stat.h> |
| 33 | #include <unistd.h> |
| 34 | #include <xf86drm.h> |
| 35 | #include <xf86drmMode.h> |
Saurabh Shah | fad1afd | 2017-01-31 12:09:59 -0800 | [diff] [blame] | 36 | // Intentionally included after xf86 headers so that they in-turn include libdrm version of drm.h |
| 37 | // that doesn't use keyword "virtual" for a variable name. Not doing so leads to the kernel version |
| 38 | // of drm.h being included causing compilation to fail |
| 39 | #include <drm/msm_drm.h> |
Rheygine Medel | 99f7d1a | 2020-02-11 14:54:51 -0800 | [diff] [blame] | 40 | #include <display/drm/sde_drm.h> |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 41 | #include <algorithm> |
| 42 | #include <iterator> |
Mahesh Aia | f695665 | 2021-08-19 07:48:22 -0700 | [diff] [blame] | 43 | #include <chrono> |
| 44 | #include <thread> |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 45 | |
| 46 | #include "drm_master.h" |
| 47 | |
| 48 | #define __CLASS__ "DRMMaster" |
| 49 | |
| 50 | using std::mutex; |
| 51 | using std::lock_guard; |
| 52 | using std::begin; |
| 53 | using std::copy; |
| 54 | using std::end; |
| 55 | using std::fill; |
| 56 | |
| 57 | namespace drm_utils { |
| 58 | |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 59 | DRMMaster *DRMMaster::s_instance = nullptr; |
| 60 | mutex DRMMaster::s_lock; |
| 61 | |
| 62 | int DRMMaster::GetInstance(DRMMaster **master) { |
| 63 | lock_guard<mutex> obj(s_lock); |
| 64 | |
| 65 | if (!s_instance) { |
| 66 | s_instance = new DRMMaster(); |
| 67 | if (s_instance->Init() < 0) { |
| 68 | delete s_instance; |
| 69 | s_instance = nullptr; |
| 70 | return -ENODEV; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | *master = s_instance; |
| 75 | return 0; |
| 76 | } |
| 77 | |
Saurabh Shah | a57cf16 | 2017-02-28 17:00:11 -0800 | [diff] [blame] | 78 | void DRMMaster::DestroyInstance() { |
| 79 | lock_guard<mutex> obj(s_lock); |
| 80 | delete s_instance; |
| 81 | s_instance = nullptr; |
| 82 | } |
| 83 | |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 84 | int DRMMaster::Init() { |
Mahesh Aia | f695665 | 2021-08-19 07:48:22 -0700 | [diff] [blame] | 85 | uint8_t retry = 0; |
| 86 | do { |
| 87 | dev_fd_ = drmOpen("msm_drm", nullptr); |
| 88 | if(dev_fd_ < 0) { |
Ramkumar Radhakrishnan | 4d96f05 | 2021-11-15 21:26:16 -0800 | [diff] [blame] | 89 | DRM_LOGW("drmOpen failed with error %d, retry %d", dev_fd_, retry); |
Mahesh Aia | f695665 | 2021-08-19 07:48:22 -0700 | [diff] [blame] | 90 | if (retry >= MAX_RETRY) { |
| 91 | return -ENODEV; |
| 92 | } |
| 93 | std::this_thread::sleep_for(std::chrono::milliseconds(100)); |
| 94 | } |
| 95 | } while(dev_fd_ < 0 && retry++ < MAX_RETRY); |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 96 | |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | DRMMaster::~DRMMaster() { |
| 101 | drmClose(dev_fd_); |
| 102 | dev_fd_ = -1; |
| 103 | } |
| 104 | |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 105 | int DRMMaster::CreateFbId(const DRMBuffer &drm_buffer, uint32_t *fb_id) { |
Pullakavi Srinivas | 0243457 | 2021-02-28 23:46:09 +0530 | [diff] [blame] | 106 | lock_guard<mutex> obj(s_lock); |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 107 | uint32_t gem_handle = 0; |
| 108 | int ret = drmPrimeFDToHandle(dev_fd_, drm_buffer.fd, &gem_handle); |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 109 | if (ret) { |
Saurabh Shah | 66c941b | 2016-07-06 17:34:05 -0700 | [diff] [blame] | 110 | DRM_LOGE("drmPrimeFDToHandle failed with error %d", ret); |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 111 | return ret; |
| 112 | } |
| 113 | |
Saurabh Shah | b1bdf6e | 2017-02-16 10:57:19 -0800 | [diff] [blame] | 114 | struct drm_mode_fb_cmd2 cmd2 {}; |
| 115 | cmd2.width = drm_buffer.width; |
| 116 | cmd2.height = drm_buffer.height; |
| 117 | cmd2.pixel_format = drm_buffer.drm_format; |
| 118 | cmd2.flags = DRM_MODE_FB_MODIFIERS; |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 119 | fill(begin(cmd2.handles), begin(cmd2.handles) + drm_buffer.num_planes, gem_handle); |
Saurabh Shah | b1bdf6e | 2017-02-16 10:57:19 -0800 | [diff] [blame] | 120 | copy(begin(drm_buffer.stride), end(drm_buffer.stride), begin(cmd2.pitches)); |
| 121 | copy(begin(drm_buffer.offset), end(drm_buffer.offset), begin(cmd2.offsets)); |
| 122 | fill(begin(cmd2.modifier), begin(cmd2.modifier) + drm_buffer.num_planes, |
| 123 | drm_buffer.drm_format_modifier); |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 124 | |
Saurabh Shah | b1bdf6e | 2017-02-16 10:57:19 -0800 | [diff] [blame] | 125 | if ((ret = drmIoctl(dev_fd_, DRM_IOCTL_MODE_ADDFB2, &cmd2))) { |
| 126 | DRM_LOGE("DRM_IOCTL_MODE_ADDFB2 failed with error %d", ret); |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 127 | } else { |
| 128 | *fb_id = cmd2.fb_id; |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 129 | } |
| 130 | |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 131 | struct drm_gem_close gem_close = {}; |
| 132 | gem_close.handle = gem_handle; |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 133 | int ret1 = drmIoctl(dev_fd_, DRM_IOCTL_GEM_CLOSE, &gem_close); |
| 134 | if (ret1) { |
| 135 | DRM_LOGE("drmIoctl::DRM_IOCTL_GEM_CLOSE failed with error %d", ret1); |
| 136 | return ret1; |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 137 | } |
| 138 | |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 139 | return ret; |
| 140 | } |
| 141 | |
| 142 | int DRMMaster::RemoveFbId(uint32_t fb_id) { |
Pullakavi Srinivas | 0243457 | 2021-02-28 23:46:09 +0530 | [diff] [blame] | 143 | lock_guard<mutex> obj(s_lock); |
Saurabh Shah | f84c412 | 2017-04-07 10:34:40 -0700 | [diff] [blame] | 144 | int ret = 0; |
Saurabh Shah | fad1afd | 2017-01-31 12:09:59 -0800 | [diff] [blame] | 145 | #ifdef DRM_IOCTL_MSM_RMFB2 |
| 146 | ret = drmIoctl(dev_fd_, DRM_IOCTL_MSM_RMFB2, &fb_id); |
| 147 | if (ret) { |
| 148 | DRM_LOGE("drmIoctl::DRM_IOCTL_MSM_RMFB2 failed for fb_id %d with error %d", fb_id, errno); |
| 149 | } |
| 150 | #else |
Rheygine Medel | a83c2d7 | 2020-02-12 15:43:40 -0800 | [diff] [blame] | 151 | DRM_LOGE("drmModeRmFB is no longer used. DRM_IOCTL_MSM_RMFB2 not found"); |
Saurabh Shah | fad1afd | 2017-01-31 12:09:59 -0800 | [diff] [blame] | 152 | #endif |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 153 | return ret; |
| 154 | } |
| 155 | |
Saurabh Shah | 23cd08a | 2017-07-10 15:18:14 -0700 | [diff] [blame] | 156 | bool DRMMaster::IsRmFbRefCounted() { |
| 157 | #ifdef DRM_IOCTL_MSM_RMFB2 |
| 158 | return true; |
| 159 | #endif |
| 160 | return false; |
| 161 | } |
| 162 | |
Saurabh Shah | 7d476ed | 2016-06-27 16:40:58 -0700 | [diff] [blame] | 163 | } // namespace drm_utils |