| /* |
| * Copyright © 2012 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, sublicense, |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| */ |
| |
| #include "main/context.h" |
| |
| #include "brw_context.h" |
| |
| /** |
| * Query information about GPU resets observed by this context |
| * |
| * Called via \c dd_function_table::GetGraphicsResetStatus. |
| */ |
| GLenum |
| brw_get_graphics_reset_status(struct gl_context *ctx) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| int err; |
| uint32_t reset_count; |
| uint32_t active; |
| uint32_t pending; |
| |
| /* If hardware contexts are not being used (or |
| * DRM_IOCTL_I915_GET_RESET_STATS is not supported), this function should |
| * not be accessible. |
| */ |
| assert(brw->hw_ctx != NULL); |
| |
| /* A reset status other than NO_ERROR was returned last time. I915 returns |
| * nonzero active/pending only if reset has been encountered and completed. |
| * Return NO_ERROR from now on. |
| */ |
| if (brw->reset_count != 0) |
| return GL_NO_ERROR; |
| |
| err = drm_intel_get_reset_stats(brw->hw_ctx, &reset_count, &active, |
| &pending); |
| if (err) |
| return GL_NO_ERROR; |
| |
| /* A reset was observed while a batch from this context was executing. |
| * Assume that this context was at fault. |
| */ |
| if (active != 0) { |
| brw->reset_count = reset_count; |
| return GL_GUILTY_CONTEXT_RESET_ARB; |
| } |
| |
| /* A reset was observed while a batch from this context was in progress, |
| * but the batch was not executing. In this case, assume that the context |
| * was not at fault. |
| */ |
| if (pending != 0) { |
| brw->reset_count = reset_count; |
| return GL_INNOCENT_CONTEXT_RESET_ARB; |
| } |
| |
| return GL_NO_ERROR; |
| } |
| |
| void |
| brw_check_for_reset(struct brw_context *brw) |
| { |
| uint32_t reset_count; |
| uint32_t active; |
| uint32_t pending; |
| int err; |
| |
| err = drm_intel_get_reset_stats(brw->hw_ctx, &reset_count, &active, |
| &pending); |
| if (err) |
| return; |
| |
| if (active > 0 || pending > 0) |
| _mesa_set_context_lost_dispatch(&brw->ctx); |
| } |