alloc_controller.cpp revision b166940edca6e312463461438e2aa66e9852c26a 
1/*
2 * Copyright (c) 2011-2012, 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 <cutils/log.h>
31#include <fcntl.h>
32#include <dlfcn.h>
33#include "gralloc_priv.h"
34#include "alloc_controller.h"
35#include "memalloc.h"
36#include "ionalloc.h"
37#include "gr.h"
38#include "comptype.h"
39
40#ifdef VENUS_COLOR_FORMAT
41#include <media/msm_media_info.h>
42#else
43#define VENUS_Y_STRIDE(args...) 0
44#define VENUS_Y_SCANLINES(args...) 0
45#define VENUS_BUFFER_SIZE(args...) 0
46#endif
47
48using namespace gralloc;
49using namespace qdutils;
50
51ANDROID_SINGLETON_STATIC_INSTANCE(AdrenoMemInfo);
52
53//Common functions
54static bool canFallback(int usage, bool triedSystem)
55{
56    // Fallback to system heap when alloc fails unless
57    // 1. Composition type is MDP
58    // 2. Alloc from system heap was already tried
59    // 3. The heap type is requsted explicitly
60    // 4. The heap type is protected
61    // 5. The buffer is meant for external display only
62
63    if(QCCompositionType::getInstance().getCompositionType() &
64       COMPOSITION_TYPE_MDP)
65        return false;
66    if(triedSystem)
67        return false;
68    if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PROTECTED))
69        return false;
70    if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY))
71        return false;
72    //Return true by default
73    return true;
74}
75
76static bool useUncached(int usage)
77{
78    // System heaps cannot be uncached
79    if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP)
80        return false;
81    if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED)
82        return true;
83    return false;
84}
85
86//-------------- AdrenoMemInfo-----------------------//
87AdrenoMemInfo::AdrenoMemInfo()
88{
89    libadreno_utils = ::dlopen("libadreno_utils.so", RTLD_NOW);
90    if (libadreno_utils) {
91        *(void **)&LINK_adreno_compute_padding = ::dlsym(libadreno_utils,
92                                           "compute_surface_padding");
93    }
94}
95
96AdrenoMemInfo::~AdrenoMemInfo()
97{
98    if (libadreno_utils) {
99        ::dlclose(libadreno_utils);
100    }
101}
102
103int AdrenoMemInfo::getStride(int width, int format)
104{
105    int stride = ALIGN(width, 32);
106    // Currently surface padding is only computed for RGB* surfaces.
107    if (format < 0x7) {
108        int bpp = 4;
109        switch(format)
110        {
111            case HAL_PIXEL_FORMAT_RGB_888:
112                bpp = 3;
113                break;
114            case HAL_PIXEL_FORMAT_RGB_565:
115            case HAL_PIXEL_FORMAT_RGBA_5551:
116            case HAL_PIXEL_FORMAT_RGBA_4444:
117                bpp = 2;
118                break;
119            default: break;
120        }
121        if ((libadreno_utils) && (LINK_adreno_compute_padding)) {
122            int surface_tile_height = 1;   // Linear surface
123            int raster_mode         = 0;   // Adreno unknown raster mode.
124            int padding_threshold   = 512; // Threshold for padding surfaces.
125            // the function below expects the width to be a multiple of
126            // 32 pixels, hence we pass stride instead of width.
127            stride = LINK_adreno_compute_padding(stride, bpp,
128                                      surface_tile_height, raster_mode,
129                                      padding_threshold);
130        }
131    } else {
132        switch (format)
133        {
134            case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
135            case HAL_PIXEL_FORMAT_RAW_SENSOR:
136                stride = ALIGN(width, 32);
137                break;
138            case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
139                stride = ALIGN(width, 128);
140                break;
141            case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
142            case HAL_PIXEL_FORMAT_YCbCr_420_SP:
143            case HAL_PIXEL_FORMAT_YCrCb_420_SP:
144            case HAL_PIXEL_FORMAT_YV12:
145            case HAL_PIXEL_FORMAT_YCbCr_422_SP:
146            case HAL_PIXEL_FORMAT_YCrCb_422_SP:
147                stride = ALIGN(width, 16);
148                break;
149            case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
150                stride = VENUS_Y_STRIDE(COLOR_FMT_NV12, width);
151                break;
152            case HAL_PIXEL_FORMAT_BLOB:
153                stride = width;
154                break;
155            default: break;
156        }
157    }
158    return stride;
159}
160
161//-------------- IAllocController-----------------------//
162IAllocController* IAllocController::sController = NULL;
163IAllocController* IAllocController::getInstance(void)
164{
165    if(sController == NULL) {
166        sController = new IonController();
167    }
168    return sController;
169}
170
171
172//-------------- IonController-----------------------//
173IonController::IonController()
174{
175    mIonAlloc = new IonAlloc();
176}
177
178int IonController::allocate(alloc_data& data, int usage)
179{
180    int ionFlags = 0;
181    int ret;
182
183    data.uncached = useUncached(usage);
184    data.allocType = 0;
185
186    if(usage & GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP)
187        ionFlags |= ION_HEAP(ION_SF_HEAP_ID);
188
189    if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP)
190        ionFlags |= ION_HEAP(ION_SYSTEM_HEAP_ID);
191
192    if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)
193        ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
194
195    //MM Heap is exclusively a secure heap.
196    if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP) {
197        //XXX: Right now the MM heap is the only secure heap we have. When we
198        //have other secure heaps, we can change this.
199        if(usage & GRALLOC_USAGE_PROTECTED) {
200            ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID);
201            ionFlags |= ION_SECURE;
202        }
203        else {
204            ALOGW("GRALLOC_USAGE_PRIVATE_MM_HEAP \
205                  cannot be used as an insecure heap!\
206                  trying to use IOMMU instead !!");
207            ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
208        }
209    }
210
211    if(usage & GRALLOC_USAGE_PRIVATE_CAMERA_HEAP)
212        ionFlags |= ION_HEAP(ION_CAMERA_HEAP_ID);
213
214    if(usage & GRALLOC_USAGE_PROTECTED)
215         data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER;
216
217    // if no flags are set, default to
218    // SF + IOMMU heaps, so that bypass can work
219    // we can fall back to system heap if
220    // we run out.
221    if(!ionFlags)
222        ionFlags = ION_HEAP(ION_SF_HEAP_ID) | ION_HEAP(ION_IOMMU_HEAP_ID);
223
224    data.flags = ionFlags;
225    ret = mIonAlloc->alloc_buffer(data);
226
227    // Fallback
228    if(ret < 0 && canFallback(usage,
229                              (ionFlags & ION_SYSTEM_HEAP_ID)))
230    {
231        ALOGW("Falling back to system heap");
232        data.flags = ION_HEAP(ION_SYSTEM_HEAP_ID);
233        ret = mIonAlloc->alloc_buffer(data);
234    }
235
236    if(ret >= 0 ) {
237        data.allocType |= private_handle_t::PRIV_FLAGS_USES_ION;
238    }
239
240    return ret;
241}
242
243IMemAlloc* IonController::getAllocator(int flags)
244{
245    IMemAlloc* memalloc = NULL;
246    if (flags & private_handle_t::PRIV_FLAGS_USES_ION) {
247        memalloc = mIonAlloc;
248    } else {
249        ALOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags);
250    }
251
252    return memalloc;
253}
254
255size_t getBufferSizeAndDimensions(int width, int height, int format,
256                                  int& alignedw, int &alignedh)
257{
258    size_t size;
259
260    alignedw = AdrenoMemInfo::getInstance().getStride(width, format);
261    alignedh = ALIGN(height, 32);
262    switch (format) {
263        case HAL_PIXEL_FORMAT_RGBA_8888:
264        case HAL_PIXEL_FORMAT_RGBX_8888:
265        case HAL_PIXEL_FORMAT_BGRA_8888:
266            size = alignedw * alignedh * 4;
267            break;
268        case HAL_PIXEL_FORMAT_RGB_888:
269            size = alignedw * alignedh * 3;
270            break;
271        case HAL_PIXEL_FORMAT_RGB_565:
272        case HAL_PIXEL_FORMAT_RGBA_5551:
273        case HAL_PIXEL_FORMAT_RGBA_4444:
274        case HAL_PIXEL_FORMAT_RAW_SENSOR:
275            size = alignedw * alignedh * 2;
276            break;
277
278            // adreno formats
279        case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:  // NV21
280            size  = ALIGN(alignedw*alignedh, 4096);
281            size += ALIGN(2 * ALIGN(width/2, 32) * ALIGN(height/2, 32), 4096);
282            break;
283        case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:   // NV12
284            // The chroma plane is subsampled,
285            // but the pitch in bytes is unchanged
286            // The GPU needs 4K alignment, but the video decoder needs 8K
287            size  = ALIGN( alignedw * alignedh, 8192);
288            size += ALIGN( alignedw * ALIGN(height/2, 32), 8192);
289            break;
290        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
291        case HAL_PIXEL_FORMAT_YV12:
292            if ((format == HAL_PIXEL_FORMAT_YV12) && ((width&1) || (height&1))) {
293                ALOGE("w or h is odd for the YV12 format");
294                return -EINVAL;
295            }
296            alignedh = height;
297            if (HAL_PIXEL_FORMAT_NV12_ENCODEABLE == format) {
298                // The encoder requires a 2K aligned chroma offset.
299                size = ALIGN(alignedw*alignedh, 2048) +
300                    (ALIGN(alignedw/2, 16) * (alignedh/2))*2;
301            } else {
302                size = alignedw*alignedh +
303                    (ALIGN(alignedw/2, 16) * (alignedh/2))*2;
304            }
305            size = ALIGN(size, 4096);
306            break;
307        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
308        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
309            alignedh = height;
310            size = ALIGN((alignedw*alignedh) + (alignedw* alignedh)/2, 4096);
311            break;
312        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
313        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
314            if(width & 1) {
315                ALOGE("width is odd for the YUV422_SP format");
316                return -EINVAL;
317            }
318            alignedh = height;
319            size = ALIGN(alignedw * alignedh * 2, 4096);
320            break;
321        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
322            alignedh = VENUS_Y_SCANLINES(COLOR_FMT_NV12, height);
323            size = VENUS_BUFFER_SIZE(COLOR_FMT_NV12, width, height);
324            break;
325        case HAL_PIXEL_FORMAT_BLOB:
326            if(height != 1) {
327                ALOGE("%s: Buffers with format HAL_PIXEL_FORMAT_BLOB \
328                      must have height==1 ", __FUNCTION__);
329                return -EINVAL;
330            }
331            alignedh = height;
332            alignedw = width;
333            size = width;
334            break;
335        default:
336            ALOGE("unrecognized pixel format: 0x%x", format);
337            return -EINVAL;
338    }
339
340    return size;
341}
342
343// Allocate buffer from width, height and format into a
344// private_handle_t. It is the responsibility of the caller
345// to free the buffer using the free_buffer function
346int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage)
347{
348    alloc_data data;
349    int alignedw, alignedh;
350    gralloc::IAllocController* sAlloc =
351        gralloc::IAllocController::getInstance();
352    data.base = 0;
353    data.fd = -1;
354    data.offset = 0;
355    data.size = getBufferSizeAndDimensions(w, h, format, alignedw, alignedh);
356    data.align = getpagesize();
357    data.uncached = useUncached(usage);
358    int allocFlags = usage;
359
360    int err = sAlloc->allocate(data, allocFlags);
361    if (0 != err) {
362        ALOGE("%s: allocate failed", __FUNCTION__);
363        return -ENOMEM;
364    }
365
366    private_handle_t* hnd = new private_handle_t(data.fd, data.size,
367                                                 data.allocType, 0, format,
368                                                 alignedw, alignedh);
369    hnd->base = (int) data.base;
370    hnd->offset = data.offset;
371    hnd->gpuaddr = 0;
372    *pHnd = hnd;
373    return 0;
374}
375
376void free_buffer(private_handle_t *hnd)
377{
378    gralloc::IAllocController* sAlloc =
379        gralloc::IAllocController::getInstance();
380    if (hnd && hnd->fd > 0) {
381        IMemAlloc* memalloc = sAlloc->getAllocator(hnd->flags);
382        memalloc->free_buffer((void*)hnd->base, hnd->size, hnd->offset, hnd->fd);
383    }
384    if(hnd)
385        delete hnd;
386
387}
388