| /* |
| * Copyright © 2009 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: |
| * Xiang Haihao <haihao.xiang@intel.com> |
| * Zou Nan hai <nanhai.zou@intel.com> |
| * |
| */ |
| |
| #include <assert.h> |
| |
| #include "va_dricommon.h" |
| |
| #include "intel_batchbuffer.h" |
| #include "intel_memman.h" |
| #include "intel_driver.h" |
| |
| static Bool |
| intel_driver_get_param(struct intel_driver_data *intel, int param, int *value) |
| { |
| int ret; |
| struct drm_i915_getparam gp; |
| |
| gp.param = param; |
| gp.value = value; |
| |
| ret = drmCommandWriteRead(intel->fd, DRM_I915_GETPARAM, &gp, sizeof(gp)); |
| assert(ret == 0); |
| |
| return True; |
| } |
| |
| Bool |
| intel_driver_init(VADriverContextP ctx) |
| { |
| struct intel_driver_data *intel = intel_driver_data(ctx); |
| struct dri_state *dri_state = (struct dri_state *)ctx->dri_state; |
| |
| assert(dri_state); |
| assert(dri_state->driConnectedFlag == VA_DRI2 || |
| dri_state->driConnectedFlag == VA_DRI1); |
| |
| intel->fd = dri_state->fd; |
| intel->dri2Enabled = (dri_state->driConnectedFlag == VA_DRI2); |
| |
| if (!intel->dri2Enabled) { |
| drm_sarea_t *pSAREA; |
| |
| pSAREA = (drm_sarea_t *)dri_state->pSAREA; |
| intel->hHWContext = dri_state->hwContext; |
| intel->driHwLock = (drmLock *)(&pSAREA->lock); |
| intel->pPrivSarea = (void *)pSAREA + sizeof(drm_sarea_t); |
| } |
| |
| intel->locked = 0; |
| pthread_mutex_init(&intel->ctxmutex, NULL); |
| |
| intel_driver_get_param(intel, I915_PARAM_CHIPSET_ID, &intel->device_id); |
| intel_memman_init(intel); |
| intel_batchbuffer_init(intel); |
| |
| return True; |
| } |
| |
| Bool |
| intel_driver_terminate(VADriverContextP ctx) |
| { |
| struct intel_driver_data *intel = intel_driver_data(ctx); |
| |
| intel_memman_terminate(intel); |
| intel_batchbuffer_terminate(intel); |
| |
| pthread_mutex_destroy(&intel->ctxmutex); |
| |
| return True; |
| } |
| |
| void |
| intel_lock_hardware(VADriverContextP ctx) |
| { |
| struct intel_driver_data *intel = intel_driver_data(ctx); |
| char __ret = 0; |
| |
| PPTHREAD_MUTEX_LOCK(); |
| |
| assert(!intel->locked); |
| |
| if (!intel->dri2Enabled) { |
| DRM_CAS(intel->driHwLock, |
| intel->hHWContext, |
| (DRM_LOCK_HELD|intel->hHWContext), |
| __ret); |
| |
| if (__ret) { |
| drmGetLock(intel->fd, intel->hHWContext, 0); |
| } |
| } |
| |
| intel->locked = 1; |
| } |
| |
| void |
| intel_unlock_hardware(VADriverContextP ctx) |
| { |
| struct intel_driver_data *intel = intel_driver_data(ctx); |
| |
| if (!intel->dri2Enabled) { |
| DRM_UNLOCK(intel->fd, |
| intel->driHwLock, |
| intel->hHWContext); |
| } |
| |
| intel->locked = 0; |
| PPTHREAD_MUTEX_UNLOCK(); |
| } |