alloc_controller.cpp revision 966f989a6d502dc12ad7f5ad950180df6581f382 
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                bpp = 2;
116                break;
117            default: break;
118        }
119        if ((libadreno_utils) && (LINK_adreno_compute_padding)) {
120            int surface_tile_height = 1;   // Linear surface
121            int raster_mode         = 0;   // Adreno unknown raster mode.
122            int padding_threshold   = 512; // Threshold for padding surfaces.
123            // the function below expects the width to be a multiple of
124            // 32 pixels, hence we pass stride instead of width.
125            stride = LINK_adreno_compute_padding(stride, bpp,
126                                      surface_tile_height, raster_mode,
127                                      padding_threshold);
128        }
129    } else {
130        switch (format)
131        {
132            case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
133            case HAL_PIXEL_FORMAT_RAW_SENSOR:
134                stride = ALIGN(width, 32);
135                break;
136            case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
137                stride = ALIGN(width, 128);
138                break;
139            case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
140            case HAL_PIXEL_FORMAT_YCbCr_420_SP:
141            case HAL_PIXEL_FORMAT_YCrCb_420_SP:
142            case HAL_PIXEL_FORMAT_YV12:
143            case HAL_PIXEL_FORMAT_YCbCr_422_SP:
144            case HAL_PIXEL_FORMAT_YCrCb_422_SP:
145                stride = ALIGN(width, 16);
146                break;
147            case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
148                stride = VENUS_Y_STRIDE(COLOR_FMT_NV12, width);
149                break;
150            case HAL_PIXEL_FORMAT_BLOB:
151                stride = width;
152                break;
153            default: break;
154        }
155    }
156    return stride;
157}
158
159//-------------- IAllocController-----------------------//
160IAllocController* IAllocController::sController = NULL;
161IAllocController* IAllocController::getInstance(void)
162{
163    if(sController == NULL) {
164        sController = new IonController();
165    }
166    return sController;
167}
168
169
170//-------------- IonController-----------------------//
171IonController::IonController()
172{
173    mIonAlloc = new IonAlloc();
174}
175
176int IonController::allocate(alloc_data& data, int usage)
177{
178    int ionFlags = 0;
179    int ret;
180
181    data.uncached = useUncached(usage);
182    data.allocType = 0;
183
184    if(usage & GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP)
185        ionFlags |= ION_HEAP(ION_SF_HEAP_ID);
186
187    if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP)
188        ionFlags |= ION_HEAP(ION_SYSTEM_HEAP_ID);
189
190    if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)
191        ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
192
193    //MM Heap is exclusively a secure heap.
194    if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP) {
195        //XXX: Right now the MM heap is the only secure heap we have. When we
196        //have other secure heaps, we can change this.
197        if(usage & GRALLOC_USAGE_PROTECTED) {
198            ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID);
199            ionFlags |= ION_SECURE;
200        }
201        else {
202            ALOGW("GRALLOC_USAGE_PRIVATE_MM_HEAP \
203                  cannot be used as an insecure heap!\
204                  trying to use IOMMU instead !!");
205            ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
206        }
207    }
208
209    if(usage & GRALLOC_USAGE_PRIVATE_CAMERA_HEAP)
210        ionFlags |= ION_HEAP(ION_CAMERA_HEAP_ID);
211
212    if(usage & GRALLOC_USAGE_PROTECTED)
213         data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER;
214
215    // if no flags are set, default to
216    // SF + IOMMU heaps, so that bypass can work
217    // we can fall back to system heap if
218    // we run out.
219    if(!ionFlags)
220        ionFlags = ION_HEAP(ION_SF_HEAP_ID) | ION_HEAP(ION_IOMMU_HEAP_ID);
221
222    data.flags = ionFlags;
223    ret = mIonAlloc->alloc_buffer(data);
224
225    // Fallback
226    if(ret < 0 && canFallback(usage,
227                              (ionFlags & ION_SYSTEM_HEAP_ID)))
228    {
229        ALOGW("Falling back to system heap");
230        data.flags = ION_HEAP(ION_SYSTEM_HEAP_ID);
231        ret = mIonAlloc->alloc_buffer(data);
232    }
233
234    if(ret >= 0 ) {
235        data.allocType |= private_handle_t::PRIV_FLAGS_USES_ION;
236    }
237
238    return ret;
239}
240
241IMemAlloc* IonController::getAllocator(int flags)
242{
243    IMemAlloc* memalloc = NULL;
244    if (flags & private_handle_t::PRIV_FLAGS_USES_ION) {
245        memalloc = mIonAlloc;
246    } else {
247        ALOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags);
248    }
249
250    return memalloc;
251}
252
253size_t getBufferSizeAndDimensions(int width, int height, int format,
254                                  int& alignedw, int &alignedh)
255{
256    size_t size;
257
258    alignedw = AdrenoMemInfo::getInstance().getStride(width, format);
259    alignedh = ALIGN(height, 32);
260    switch (format) {
261        case HAL_PIXEL_FORMAT_RGBA_8888:
262        case HAL_PIXEL_FORMAT_RGBX_8888:
263        case HAL_PIXEL_FORMAT_BGRA_8888:
264            size = alignedw * alignedh * 4;
265            break;
266        case HAL_PIXEL_FORMAT_RGB_888:
267            size = alignedw * alignedh * 3;
268            break;
269        case HAL_PIXEL_FORMAT_RGB_565:
270        case HAL_PIXEL_FORMAT_RAW_SENSOR:
271            size = alignedw * alignedh * 2;
272            break;
273
274            // adreno formats
275        case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:  // NV21
276            size  = ALIGN(alignedw*alignedh, 4096);
277            size += ALIGN(2 * ALIGN(width/2, 32) * ALIGN(height/2, 32), 4096);
278            break;
279        case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:   // NV12
280            // The chroma plane is subsampled,
281            // but the pitch in bytes is unchanged
282            // The GPU needs 4K alignment, but the video decoder needs 8K
283            size  = ALIGN( alignedw * alignedh, 8192);
284            size += ALIGN( alignedw * ALIGN(height/2, 32), 8192);
285            break;
286        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
287        case HAL_PIXEL_FORMAT_YV12:
288            if ((format == HAL_PIXEL_FORMAT_YV12) && ((width&1) || (height&1))) {
289                ALOGE("w or h is odd for the YV12 format");
290                return -EINVAL;
291            }
292            alignedh = height;
293            if (HAL_PIXEL_FORMAT_NV12_ENCODEABLE == format) {
294                // The encoder requires a 2K aligned chroma offset.
295                size = ALIGN(alignedw*alignedh, 2048) +
296                    (ALIGN(alignedw/2, 16) * (alignedh/2))*2;
297            } else {
298                size = alignedw*alignedh +
299                    (ALIGN(alignedw/2, 16) * (alignedh/2))*2;
300            }
301            size = ALIGN(size, 4096);
302            break;
303        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
304        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
305            alignedh = height;
306            size = ALIGN((alignedw*alignedh) + (alignedw* alignedh)/2, 4096);
307            break;
308        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
309        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
310            if(width & 1) {
311                ALOGE("width is odd for the YUV422_SP format");
312                return -EINVAL;
313            }
314            alignedh = height;
315            size = ALIGN(alignedw * alignedh * 2, 4096);
316            break;
317        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
318            alignedh = VENUS_Y_SCANLINES(COLOR_FMT_NV12, height);
319            size = VENUS_BUFFER_SIZE(COLOR_FMT_NV12, width, height);
320            break;
321        case HAL_PIXEL_FORMAT_BLOB:
322            if(height != 1) {
323                ALOGE("%s: Buffers with format HAL_PIXEL_FORMAT_BLOB \
324                      must have height==1 ", __FUNCTION__);
325                return -EINVAL;
326            }
327            alignedh = height;
328            alignedw = width;
329            size = width;
330            break;
331        default:
332            ALOGE("unrecognized pixel format: 0x%x", format);
333            return -EINVAL;
334    }
335
336    return size;
337}
338
339// Allocate buffer from width, height and format into a
340// private_handle_t. It is the responsibility of the caller
341// to free the buffer using the free_buffer function
342int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage)
343{
344    alloc_data data;
345    int alignedw, alignedh;
346    gralloc::IAllocController* sAlloc =
347        gralloc::IAllocController::getInstance();
348    data.base = 0;
349    data.fd = -1;
350    data.offset = 0;
351    data.size = getBufferSizeAndDimensions(w, h, format, alignedw, alignedh);
352    data.align = getpagesize();
353    data.uncached = useUncached(usage);
354    int allocFlags = usage;
355
356    int err = sAlloc->allocate(data, allocFlags);
357    if (0 != err) {
358        ALOGE("%s: allocate failed", __FUNCTION__);
359        return -ENOMEM;
360    }
361
362    private_handle_t* hnd = new private_handle_t(data.fd, data.size,
363                                                 data.allocType, 0, format,
364                                                 alignedw, alignedh);
365    hnd->base = (int) data.base;
366    hnd->offset = data.offset;
367    hnd->gpuaddr = 0;
368    *pHnd = hnd;
369    return 0;
370}
371
372void free_buffer(private_handle_t *hnd)
373{
374    gralloc::IAllocController* sAlloc =
375        gralloc::IAllocController::getInstance();
376    if (hnd && hnd->fd > 0) {
377        IMemAlloc* memalloc = sAlloc->getAllocator(hnd->flags);
378        memalloc->free_buffer((void*)hnd->base, hnd->size, hnd->offset, hnd->fd);
379    }
380    if(hnd)
381        delete hnd;
382
383}
384