alloc_controller.cpp revision 2d9ebfd924dfc0e86b7b6fda9ec7a538a1e91955 
1/*
2 * Copyright (c) 2011-2012, Code Aurora Forum. 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 Code Aurora Forum, Inc. 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 <cutils/log.h>
31#include <fcntl.h>
32#include "gralloc_priv.h"
33#include "alloc_controller.h"
34#include "memalloc.h"
35#include "ionalloc.h"
36#include "gr.h"
37#include "comptype.h"
38
39#ifdef VENUS_COLOR_FORMAT
40#include <media/msm_media_info.h>
41#else
42#define VENUS_Y_STRIDE(args...) 0
43#define VENUS_Y_SCANLINES(args...) 0
44#define VENUS_BUFFER_SIZE(args...) 0
45#endif
46
47using namespace gralloc;
48using namespace qdutils;
49
50//Common functions
51static bool canFallback(int usage, bool triedSystem)
52{
53    // Fallback to system heap when alloc fails unless
54    // 1. Composition type is MDP
55    // 2. Alloc from system heap was already tried
56    // 3. The heap type is requsted explicitly
57    // 4. The heap type is protected
58    // 5. The buffer is meant for external display only
59
60    if(QCCompositionType::getInstance().getCompositionType() &
61       COMPOSITION_TYPE_MDP)
62        return false;
63    if(triedSystem)
64        return false;
65    if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PROTECTED |
66                GRALLOC_USAGE_PRIVATE_CP_BUFFER))
67        return false;
68    if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY))
69        return false;
70    //Return true by default
71    return true;
72}
73
74static bool useUncached(int usage)
75{
76    // System heaps cannot be uncached
77    if(usage & (GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP |
78                GRALLOC_USAGE_PRIVATE_IOMMU_HEAP))
79        return false;
80    if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED)
81        return true;
82    return false;
83}
84
85IAllocController* IAllocController::sController = NULL;
86IAllocController* IAllocController::getInstance(void)
87{
88    if(sController == NULL) {
89        sController = new IonController();
90    }
91    return sController;
92}
93
94
95//-------------- IonController-----------------------//
96IonController::IonController()
97{
98    mIonAlloc = new IonAlloc();
99}
100
101int IonController::allocate(alloc_data& data, int usage)
102{
103    int ionFlags = 0;
104    int ret;
105    bool noncontig = false;
106
107    data.uncached = useUncached(usage);
108    data.allocType = 0;
109
110    if(usage & GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP)
111        ionFlags |= ION_HEAP(ION_SF_HEAP_ID);
112
113    if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP) {
114        ionFlags |= ION_HEAP(ION_SYSTEM_HEAP_ID);
115        noncontig = true;
116    }
117
118    if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)
119        ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
120
121    if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP)
122        ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID);
123
124    if(usage & GRALLOC_USAGE_PRIVATE_CAMERA_HEAP)
125        ionFlags |= ION_HEAP(ION_CAMERA_HEAP_ID);
126
127    if(usage & GRALLOC_USAGE_PRIVATE_CP_BUFFER)
128        ionFlags |= ION_SECURE;
129
130    // if no flags are set, default to
131    // SF + IOMMU heaps, so that bypass can work
132    // we can fall back to system heap if
133    // we run out.
134    if(!ionFlags)
135        ionFlags = ION_HEAP(ION_SF_HEAP_ID) | ION_HEAP(ION_IOMMU_HEAP_ID);
136
137    data.flags = ionFlags;
138    ret = mIonAlloc->alloc_buffer(data);
139
140    // Fallback
141    if(ret < 0 && canFallback(usage,
142                              (ionFlags & ION_SYSTEM_HEAP_ID)))
143    {
144        ALOGW("Falling back to system heap");
145        data.flags = ION_HEAP(ION_SYSTEM_HEAP_ID);
146        noncontig = true;
147        ret = mIonAlloc->alloc_buffer(data);
148    }
149
150    if(ret >= 0 ) {
151        data.allocType |= private_handle_t::PRIV_FLAGS_USES_ION;
152        if(noncontig)
153            data.allocType |= private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM;
154        if(ionFlags & ION_SECURE)
155            data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER;
156    }
157
158    return ret;
159}
160
161IMemAlloc* IonController::getAllocator(int flags)
162{
163    IMemAlloc* memalloc = NULL;
164    if (flags & private_handle_t::PRIV_FLAGS_USES_ION) {
165        memalloc = mIonAlloc;
166    } else {
167        ALOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags);
168    }
169
170    return memalloc;
171}
172
173size_t getBufferSizeAndDimensions(int width, int height, int format,
174                                  int& alignedw, int &alignedh)
175{
176    size_t size;
177
178    alignedw = ALIGN(width, 32);
179    alignedh = ALIGN(height, 32);
180    switch (format) {
181        case HAL_PIXEL_FORMAT_RGBA_8888:
182        case HAL_PIXEL_FORMAT_RGBX_8888:
183        case HAL_PIXEL_FORMAT_BGRA_8888:
184            size = alignedw * alignedh * 4;
185            break;
186        case HAL_PIXEL_FORMAT_RGB_888:
187            size = alignedw * alignedh * 3;
188            break;
189        case HAL_PIXEL_FORMAT_RGB_565:
190        case HAL_PIXEL_FORMAT_RGBA_5551:
191        case HAL_PIXEL_FORMAT_RGBA_4444:
192            size = alignedw * alignedh * 2;
193            break;
194
195            // adreno formats
196        case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:  // NV21
197            size  = ALIGN(alignedw*alignedh, 4096);
198            size += ALIGN(2 * ALIGN(width/2, 32) * ALIGN(height/2, 32), 4096);
199            break;
200        case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:   // NV12
201            // The chroma plane is subsampled,
202            // but the pitch in bytes is unchanged
203            // The GPU needs 4K alignment, but the video decoder needs 8K
204            alignedw = ALIGN(width, 128);
205            size  = ALIGN( alignedw * alignedh, 8192);
206            size += ALIGN( alignedw * ALIGN(height/2, 32), 8192);
207            break;
208        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
209        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
210        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
211        case HAL_PIXEL_FORMAT_YV12:
212            if ((format == HAL_PIXEL_FORMAT_YV12) && ((width&1) || (height&1))) {
213                ALOGE("w or h is odd for the YV12 format");
214                return -EINVAL;
215            }
216            alignedw = ALIGN(width, 16);
217            alignedh = height;
218            if (HAL_PIXEL_FORMAT_NV12_ENCODEABLE == format) {
219                // The encoder requires a 2K aligned chroma offset.
220                size = ALIGN(alignedw*alignedh, 2048) +
221                    (ALIGN(alignedw/2, 16) * (alignedh/2))*2;
222            } else {
223                size = alignedw*alignedh +
224                    (ALIGN(alignedw/2, 16) * (alignedh/2))*2;
225            }
226            size = ALIGN(size, 4096);
227            break;
228        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
229        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
230            if(width & 1) {
231                ALOGE("width is odd for the YUV422_SP format");
232                return -EINVAL;
233            }
234            alignedw = ALIGN(width, 16);
235            alignedh = height;
236            size = ALIGN(alignedw * alignedh * 2, 4096);
237            break;
238        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
239            size = alignedw*alignedh +
240                  (ALIGN(alignedw/2, 32) * (alignedh/2))*2;
241            size = ALIGN(size, 4096);
242            break;
243        default:
244            ALOGE("unrecognized pixel format: 0x%x", format);
245            return -EINVAL;
246    }
247
248    return size;
249}
250
251// Allocate buffer from width, height and format into a
252// private_handle_t. It is the responsibility of the caller
253// to free the buffer using the free_buffer function
254int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage)
255{
256    alloc_data data;
257    int alignedw, alignedh;
258    gralloc::IAllocController* sAlloc =
259        gralloc::IAllocController::getInstance();
260    data.base = 0;
261    data.fd = -1;
262    data.offset = 0;
263    data.size = getBufferSizeAndDimensions(w, h, format, alignedw, alignedh);
264    data.align = getpagesize();
265    data.uncached = useUncached(usage);
266    int allocFlags = usage;
267
268    int err = sAlloc->allocate(data, allocFlags);
269    if (0 != err) {
270        ALOGE("%s: allocate failed", __FUNCTION__);
271        return -ENOMEM;
272    }
273
274    private_handle_t* hnd = new private_handle_t(data.fd, data.size,
275                                                 data.allocType, 0, format,
276                                                 alignedw, alignedh);
277    hnd->base = (int) data.base;
278    hnd->offset = data.offset;
279    hnd->gpuaddr = 0;
280    *pHnd = hnd;
281    return 0;
282}
283
284void free_buffer(private_handle_t *hnd)
285{
286    gralloc::IAllocController* sAlloc =
287        gralloc::IAllocController::getInstance();
288    if (hnd && hnd->fd > 0) {
289        IMemAlloc* memalloc = sAlloc->getAllocator(hnd->flags);
290        memalloc->free_buffer((void*)hnd->base, hnd->size, hnd->offset, hnd->fd);
291    }
292    if(hnd)
293        delete hnd;
294
295}
296