diff options
Diffstat (limited to 'drivers/gpu/arm/t6xx/kbase/src/common/mali_kbase_js_ctx_attr.h')
| -rwxr-xr-x | drivers/gpu/arm/t6xx/kbase/src/common/mali_kbase_js_ctx_attr.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/drivers/gpu/arm/t6xx/kbase/src/common/mali_kbase_js_ctx_attr.h b/drivers/gpu/arm/t6xx/kbase/src/common/mali_kbase_js_ctx_attr.h new file mode 100755 index 00000000000..df60b7d6479 --- /dev/null +++ b/drivers/gpu/arm/t6xx/kbase/src/common/mali_kbase_js_ctx_attr.h @@ -0,0 +1,156 @@ +/* + * + * (C) COPYRIGHT 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +/** + * @file mali_kbase_js_ctx_attr.h + * Job Scheduler Context Attribute APIs + */ + +#ifndef _KBASE_JS_CTX_ATTR_H_ +#define _KBASE_JS_CTX_ATTR_H_ + +/** + * @addtogroup base_api + * @{ + */ + +/** + * @addtogroup base_kbase_api + * @{ + */ + +/** + * @addtogroup kbase_js + * @{ + */ + +/** + * Set the initial attributes of a context (when context create flags are set) + * + * Requires: + * - Hold the jsctx_mutex + */ +void kbasep_js_ctx_attr_set_initial_attrs(kbase_device *kbdev, kbase_context *kctx); + +/** + * Retain all attributes of a context + * + * This occurs on scheduling in the context on the runpool (but after + * is_scheduled is set) + * + * Requires: + * - jsctx mutex + * - runpool_irq spinlock + * - ctx->is_scheduled is true + */ +void kbasep_js_ctx_attr_runpool_retain_ctx(kbase_device *kbdev, kbase_context *kctx); + +/** + * Release all attributes of a context + * + * This occurs on scheduling out the context from the runpool (but before + * is_scheduled is cleared) + * + * Requires: + * - jsctx mutex + * - runpool_irq spinlock + * - ctx->is_scheduled is true + * + * @return MALI_TRUE indicates a change in ctx attributes state of the runpool. + * In this state, the scheduler might be able to submit more jobs than + * previously, and so the caller should ensure kbasep_js_try_run_next_job_nolock() + * or similar is called sometime later. + * @return MALI_FALSE indicates no change in ctx attributes state of the runpool. + */ +mali_bool kbasep_js_ctx_attr_runpool_release_ctx(kbase_device *kbdev, kbase_context *kctx); + +/** + * Retain all attributes of an atom + * + * This occurs on adding an atom to a context + * + * Requires: + * - jsctx mutex + * - If the context is scheduled, then runpool_irq spinlock must also be held + */ +void kbasep_js_ctx_attr_ctx_retain_atom(kbase_device *kbdev, kbase_context *kctx, kbase_jd_atom *katom); + +/** + * Release all attributes of an atom, given its retained state. + * + * This occurs after (permanently) removing an atom from a context + * + * Requires: + * - jsctx mutex + * - If the context is scheduled, then runpool_irq spinlock must also be held + * + * This is a no-op when \a katom_retained_state is invalid. + * + * @return MALI_TRUE indicates a change in ctx attributes state of the runpool. + * In this state, the scheduler might be able to submit more jobs than + * previously, and so the caller should ensure kbasep_js_try_run_next_job_nolock() + * or similar is called sometime later. + * @return MALI_FALSE indicates no change in ctx attributes state of the runpool. + */ +mali_bool kbasep_js_ctx_attr_ctx_release_atom(kbase_device *kbdev, kbase_context *kctx, kbasep_js_atom_retained_state *katom_retained_state); + +/** + * Requires: + * - runpool_irq spinlock + */ +static INLINE s8 kbasep_js_ctx_attr_count_on_runpool(kbase_device *kbdev, kbasep_js_ctx_attr attribute) +{ + kbasep_js_device_data *js_devdata; + + KBASE_DEBUG_ASSERT(kbdev != NULL); + KBASE_DEBUG_ASSERT(attribute < KBASEP_JS_CTX_ATTR_COUNT); + js_devdata = &kbdev->js_data; + + return js_devdata->runpool_irq.ctx_attr_ref_count[attribute]; +} + +/** + * Requires: + * - runpool_irq spinlock + */ +static INLINE mali_bool kbasep_js_ctx_attr_is_attr_on_runpool(kbase_device *kbdev, kbasep_js_ctx_attr attribute) +{ + /* In general, attributes are 'on' when they have a non-zero refcount (note: the refcount will never be < 0) */ + return (mali_bool) kbasep_js_ctx_attr_count_on_runpool(kbdev, attribute); +} + +/** + * Requires: + * - jsctx mutex + */ +static INLINE mali_bool kbasep_js_ctx_attr_is_attr_on_ctx(kbase_context *kctx, kbasep_js_ctx_attr attribute) +{ + kbasep_js_kctx_info *js_kctx_info; + + KBASE_DEBUG_ASSERT(kctx != NULL); + KBASE_DEBUG_ASSERT(attribute < KBASEP_JS_CTX_ATTR_COUNT); + js_kctx_info = &kctx->jctx.sched_info; + + /* In general, attributes are 'on' when they have a refcount (which should never be < 0) */ + return (mali_bool) (js_kctx_info->ctx.ctx_attr_ref_count[attribute]); +} + + /** @} *//* end group kbase_js */ + /** @} *//* end group base_kbase_api */ + /** @} *//* end group base_api */ + +#endif /* _KBASE_JS_DEFS_H_ */ |