1 /*
2  * Copyright (c) 2011-2018, The Linux Foundation. All rights reserved.
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 <log/log.h>
31 #include <algorithm>
32 #include <vector>
33 
34 #include "gr_allocator.h"
35 #include "gr_utils.h"
36 #include "gralloc_priv.h"
37 
38 #include "qd_utils.h"
39 
40 #ifndef ION_FLAG_CP_PIXEL
41 #define ION_FLAG_CP_PIXEL 0
42 #endif
43 
44 #ifndef ION_FLAG_ALLOW_NON_CONTIG
45 #define ION_FLAG_ALLOW_NON_CONTIG 0
46 #endif
47 
48 #ifndef ION_FLAG_CP_CAMERA_PREVIEW
49 #define ION_FLAG_CP_CAMERA_PREVIEW 0
50 #endif
51 
52 #ifdef MASTER_SIDE_CP
53 #define CP_HEAP_ID ION_SECURE_HEAP_ID
54 #define SD_HEAP_ID ION_SECURE_DISPLAY_HEAP_ID
55 #define ION_CP_FLAGS (ION_SECURE | ION_FLAG_CP_PIXEL)
56 #define ION_SD_FLAGS (ION_SECURE | ION_FLAG_CP_SEC_DISPLAY)
57 #define ION_SC_FLAGS (ION_SECURE | ION_FLAG_CP_CAMERA)
58 #define ION_SC_PREVIEW_FLAGS (ION_SECURE | ION_FLAG_CP_CAMERA_PREVIEW)
59 #else  // SLAVE_SIDE_CP
60 #define CP_HEAP_ID ION_CP_MM_HEAP_ID
61 #define SD_HEAP_ID CP_HEAP_ID
62 #define ION_CP_FLAGS (ION_SECURE | ION_FLAG_ALLOW_NON_CONTIG)
63 #define ION_SD_FLAGS ION_SECURE
64 #define ION_SC_FLAGS ION_SECURE
65 #define ION_SC_PREVIEW_FLAGS ION_SECURE
66 #endif
67 
68 using std::shared_ptr;
69 using std::vector;
70 
71 namespace gralloc {
72 
GetBufferInfo(const BufferDescriptor & descriptor)73 static BufferInfo GetBufferInfo(const BufferDescriptor &descriptor) {
74   return BufferInfo(descriptor.GetWidth(), descriptor.GetHeight(), descriptor.GetFormat(),
75                     descriptor.GetUsage());
76 }
77 
Allocator()78 Allocator::Allocator() : ion_allocator_(nullptr) {}
79 
Init()80 bool Allocator::Init() {
81   ion_allocator_ = new IonAlloc();
82   if (!ion_allocator_->Init()) {
83     return false;
84   }
85 
86   return true;
87 }
88 
~Allocator()89 Allocator::~Allocator() {
90   if (ion_allocator_) {
91     delete ion_allocator_;
92   }
93 }
94 
AllocateMem(AllocData * alloc_data,uint64_t usage)95 int Allocator::AllocateMem(AllocData *alloc_data, uint64_t usage) {
96   int ret;
97   alloc_data->uncached = UseUncached(usage);
98 
99   // After this point we should have the right heap set, there is no fallback
100   GetIonHeapInfo(usage, &alloc_data->heap_id, &alloc_data->alloc_type, &alloc_data->flags);
101 
102   ret = ion_allocator_->AllocBuffer(alloc_data);
103   if (ret >= 0) {
104     alloc_data->alloc_type |= private_handle_t::PRIV_FLAGS_USES_ION;
105   } else {
106     ALOGE("%s: Failed to allocate buffer - heap: 0x%x flags: 0x%x", __FUNCTION__,
107           alloc_data->heap_id, alloc_data->flags);
108   }
109 
110   return ret;
111 }
112 
MapBuffer(void ** base,unsigned int size,unsigned int offset,int fd)113 int Allocator::MapBuffer(void **base, unsigned int size, unsigned int offset, int fd) {
114   if (ion_allocator_) {
115     return ion_allocator_->MapBuffer(base, size, offset, fd);
116   }
117 
118   return -EINVAL;
119 }
120 
ImportBuffer(int fd)121 int Allocator::ImportBuffer(int fd) {
122   if (ion_allocator_) {
123     return ion_allocator_->ImportBuffer(fd);
124   }
125   return -EINVAL;
126 }
127 
FreeBuffer(void * base,unsigned int size,unsigned int offset,int fd,int handle)128 int Allocator::FreeBuffer(void *base, unsigned int size, unsigned int offset, int fd, int handle) {
129   if (ion_allocator_) {
130     return ion_allocator_->FreeBuffer(base, size, offset, fd, handle);
131   }
132 
133   return -EINVAL;
134 }
135 
CleanBuffer(void * base,unsigned int size,unsigned int offset,int handle,int op)136 int Allocator::CleanBuffer(void *base, unsigned int size, unsigned int offset, int handle, int op) {
137   if (ion_allocator_) {
138     return ion_allocator_->CleanBuffer(base, size, offset, handle, op);
139   }
140 
141   return -EINVAL;
142 }
143 
CheckForBufferSharing(uint32_t num_descriptors,const vector<shared_ptr<BufferDescriptor>> & descriptors,ssize_t * max_index)144 bool Allocator::CheckForBufferSharing(uint32_t num_descriptors,
145                                       const vector<shared_ptr<BufferDescriptor>> &descriptors,
146                                       ssize_t *max_index) {
147   unsigned int cur_heap_id = 0, prev_heap_id = 0;
148   unsigned int cur_alloc_type = 0, prev_alloc_type = 0;
149   unsigned int cur_ion_flags = 0, prev_ion_flags = 0;
150   bool cur_uncached = false, prev_uncached = false;
151   unsigned int alignedw, alignedh;
152   unsigned int max_size = 0;
153 
154   *max_index = -1;
155   for (uint32_t i = 0; i < num_descriptors; i++) {
156     // Check Cached vs non-cached and all the ION flags
157     cur_uncached = UseUncached(descriptors[i]->GetUsage());
158     GetIonHeapInfo(descriptors[i]->GetUsage(), &cur_heap_id, &cur_alloc_type, &cur_ion_flags);
159 
160     if (i > 0 && (cur_heap_id != prev_heap_id || cur_alloc_type != prev_alloc_type ||
161                   cur_ion_flags != prev_ion_flags)) {
162       return false;
163     }
164 
165     // For same format type, find the descriptor with bigger size
166     GetAlignedWidthAndHeight(GetBufferInfo(*descriptors[i]), &alignedw, &alignedh);
167     unsigned int size = GetSize(GetBufferInfo(*descriptors[i]), alignedw, alignedh);
168     if (max_size < size) {
169       *max_index = INT(i);
170       max_size = size;
171     }
172 
173     prev_heap_id = cur_heap_id;
174     prev_uncached = cur_uncached;
175     prev_ion_flags = cur_ion_flags;
176     prev_alloc_type = cur_alloc_type;
177   }
178 
179   return true;
180 }
181 
GetImplDefinedFormat(uint64_t usage,int format)182 int Allocator::GetImplDefinedFormat(uint64_t usage, int format) {
183   int gr_format = format;
184 
185   // If input format is HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED then based on
186   // the usage bits, gralloc assigns a format.
187   if (format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED ||
188       format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
189     if (usage & GRALLOC_USAGE_PRIVATE_ALLOC_UBWC) {
190       // Use of 10BIT_TP and 10BIT bits is supposed to be mutually exclusive.
191       // Each bit maps to only one format. Here we will check one of the bits
192       // and ignore the other.
193       if (usage & GRALLOC_USAGE_PRIVATE_10BIT_TP) {
194         gr_format = HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC;
195       } else if (usage & GRALLOC_USAGE_PRIVATE_10BIT) {
196         gr_format = HAL_PIXEL_FORMAT_YCbCr_420_P010_UBWC;
197       } else {
198         gr_format = HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC;
199       }
200     } else if (usage & GRALLOC_USAGE_PRIVATE_10BIT) {
201       gr_format = HAL_PIXEL_FORMAT_YCbCr_420_P010_VENUS;
202     } else if (usage & BufferUsage::VIDEO_ENCODER) {
203       gr_format = HAL_PIXEL_FORMAT_NV12_ENCODEABLE;  // NV12
204     } else if (usage & BufferUsage::CAMERA_INPUT) {
205       if (usage & BufferUsage::CAMERA_OUTPUT) {
206         // Assumed ZSL if both producer and consumer camera flags set
207         gr_format = HAL_PIXEL_FORMAT_NV21_ZSL;  // NV21
208       } else {
209         gr_format = HAL_PIXEL_FORMAT_YCrCb_420_SP;  // NV21
210       }
211     } else if (usage & BufferUsage::CAMERA_OUTPUT) {
212       if (format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
213         gr_format = HAL_PIXEL_FORMAT_NV21_ZSL;  // NV21
214       } else {
215 #ifdef USE_NV21_CAMERA_PREVIEW
216         gr_format = HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS;  // NV21 preview
217 #else
218         gr_format = HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS;  // NV12 preview
219 #endif
220       }
221     } else if (usage & BufferUsage::COMPOSER_OVERLAY) {
222       // XXX: If we still haven't set a format, default to RGBA8888
223       gr_format = HAL_PIXEL_FORMAT_RGBA_8888;
224     } else if (format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
225       // If no other usage flags are detected, default the
226       // flexible YUV format to NV21_ZSL
227       gr_format = HAL_PIXEL_FORMAT_NV21_ZSL;
228     }
229   }
230 
231   return gr_format;
232 }
233 
234 /* The default policy is to return cached buffers unless the client explicity
235  * sets the PRIVATE_UNCACHED flag or indicates that the buffer will be rarely
236  * read or written in software. */
UseUncached(uint64_t usage)237 bool Allocator::UseUncached(uint64_t usage) {
238   if ((usage & GRALLOC_USAGE_PRIVATE_UNCACHED) || (usage & BufferUsage::PROTECTED)) {
239     return true;
240   }
241 
242   // CPU read rarely
243   if ((usage & BufferUsage::CPU_READ_MASK) == static_cast<uint64_t>(BufferUsage::CPU_READ_RARELY)) {
244     return true;
245   }
246 
247   // CPU  write rarely
248   if ((usage & BufferUsage::CPU_WRITE_MASK) ==
249       static_cast<uint64_t>(BufferUsage::CPU_WRITE_RARELY)) {
250     return true;
251   }
252 
253   if ((usage & BufferUsage::SENSOR_DIRECT_DATA) || (usage & BufferUsage::GPU_DATA_BUFFER)) {
254     return true;
255   }
256 
257   return false;
258 }
259 
GetIonHeapInfo(uint64_t usage,unsigned int * ion_heap_id,unsigned int * alloc_type,unsigned int * ion_flags)260 void Allocator::GetIonHeapInfo(uint64_t usage, unsigned int *ion_heap_id, unsigned int *alloc_type,
261                                unsigned int *ion_flags) {
262   unsigned int heap_id = 0;
263   unsigned int type = 0;
264   uint32_t flags = 0;
265   if (usage & GRALLOC_USAGE_PROTECTED) {
266     if (usage & GRALLOC_USAGE_PRIVATE_SECURE_DISPLAY) {
267       heap_id = ION_HEAP(SD_HEAP_ID);
268       /*
269        * There is currently no flag in ION for Secure Display
270        * VM. Please add it to the define once available.
271        */
272       flags |= UINT(ION_SD_FLAGS);
273     } else if (usage & BufferUsage::CAMERA_OUTPUT) {
274       heap_id = ION_HEAP(SD_HEAP_ID);
275       if (usage & BufferUsage::COMPOSER_OVERLAY) {
276         flags |= UINT(ION_SC_PREVIEW_FLAGS);
277       } else {
278         flags |= UINT(ION_SC_FLAGS);
279       }
280     } else {
281       heap_id = ION_HEAP(CP_HEAP_ID);
282       flags |= UINT(ION_CP_FLAGS);
283     }
284   }
285 
286   if (usage & BufferUsage::SENSOR_DIRECT_DATA) {
287     heap_id |= ION_HEAP(ION_ADSP_HEAP_ID);
288   }
289 
290   if (flags & UINT(ION_SECURE)) {
291     type |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER;
292   }
293 
294   // if no ion heap flags are set, default to system heap
295   if (!heap_id) {
296     heap_id = ION_HEAP(ION_SYSTEM_HEAP_ID);
297   }
298 
299   *alloc_type = type;
300   *ion_flags = flags;
301   *ion_heap_id = heap_id;
302 
303   return;
304 }
305 }  // namespace gralloc
306