1 /* 2 * Copyright 2012 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #include "main/context.h" 25 26 #include <xf86drm.h> 27 #include "brw_context.h" 28 29 /** 30 * Query information about GPU resets observed by this context 31 * 32 * Called via \c dd_function_table::GetGraphicsResetStatus. 33 */ 34 GLenum 35 brw_get_graphics_reset_status(struct gl_context *ctx) 36 { 37 struct brw_context *brw = brw_context(ctx); 38 __DRIscreen *dri_screen = brw->screen->driScrnPriv; 39 struct drm_i915_reset_stats stats = { .ctx_id = brw->hw_ctx }; 40 41 /* If hardware contexts are not being used (or 42 * DRM_IOCTL_I915_GET_RESET_STATS is not supported), this function should 43 * not be accessible. 44 */ 45 assert(brw->hw_ctx != 0); 46 47 /* A reset status other than NO_ERROR was returned last time. I915 returns 48 * nonzero active/pending only if reset has been encountered and completed. 49 * Return NO_ERROR from now on. 50 */ 51 if (brw->reset_count != 0) 52 return GL_NO_ERROR; 53 54 if (drmIoctl(dri_screen->fd, DRM_IOCTL_I915_GET_RESET_STATS, &stats) != 0) 55 return GL_NO_ERROR; 56 57 /* A reset was observed while a batch from this context was executing. 58 * Assume that this context was at fault. 59 */ 60 if (stats.batch_active != 0) { 61 brw->reset_count = stats.reset_count; 62 return GL_GUILTY_CONTEXT_RESET_ARB; 63 } 64 65 /* A reset was observed while a batch from this context was in progress, 66 * but the batch was not executing. In this case, assume that the context 67 * was not at fault. 68 */ 69 if (stats.batch_pending != 0) { 70 brw->reset_count = stats.reset_count; 71 return GL_INNOCENT_CONTEXT_RESET_ARB; 72 } 73 74 return GL_NO_ERROR; 75 } 76 77 void 78 brw_check_for_reset(struct brw_context *brw) 79 { 80 __DRIscreen *dri_screen = brw->screen->driScrnPriv; 81 struct drm_i915_reset_stats stats = { .ctx_id = brw->hw_ctx }; 82 83 if (drmIoctl(dri_screen->fd, DRM_IOCTL_I915_GET_RESET_STATS, &stats) != 0) 84 return; 85 86 if (stats.batch_active > 0 || stats.batch_pending > 0) 87 _mesa_set_context_lost_dispatch(&brw->ctx); 88 } 89
