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Diffstat (limited to 'drivers/gpu/arm/midgard/mali_kbase_tlstream.h')
| -rw-r--r-- | drivers/gpu/arm/midgard/mali_kbase_tlstream.h | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/drivers/gpu/arm/midgard/mali_kbase_tlstream.h b/drivers/gpu/arm/midgard/mali_kbase_tlstream.h new file mode 100644 index 000000000000..494f5c784f69 --- /dev/null +++ b/drivers/gpu/arm/midgard/mali_kbase_tlstream.h @@ -0,0 +1,284 @@ +/* + * + * (C) COPYRIGHT 2015 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. + * + */ + + + +#if !defined(_KBASE_TLSTREAM_H) +#define _KBASE_TLSTREAM_H + +#include <mali_kbase.h> + +/*****************************************************************************/ + +/** + * kbase_tlstream_init - initialize timeline infrastructure in kernel + * Return: zero on success, negative number on error + */ +int kbase_tlstream_init(void); + +/** + * kbase_tlstream_term - terminate timeline infrastructure in kernel + * + * Timeline need have to been previously enabled with kbase_tlstream_init(). + */ +void kbase_tlstream_term(void); + +/** + * kbase_tlstream_acquire - acquire timeline stream file descriptor + * @kctx: kernel common context + * @fd: timeline stream file descriptor + * + * This descriptor is meant to be used by userspace timeline to gain access to + * kernel timeline stream. This stream is later broadcasted by user space to the + * timeline client. + * Only one entity can own the descriptor at any given time. Descriptor shall be + * closed if unused. If descriptor cannot be obtained (i.e. when it is already + * being used) argument fd will contain negative value. + * + * Return: zero on success (this does not necessarily mean that stream + * descriptor could be returned), negative number on error + */ +int kbase_tlstream_acquire(struct kbase_context *kctx, int *fd); + +/** + * kbase_tlstream_flush_streams - flush timeline streams. + * + * Function will flush pending data in all timeline streams. + */ +void kbase_tlstream_flush_streams(void); + +/** + * kbase_tlstream_reset_body_streams - reset timeline body streams. + * + * Function will discard pending data in all timeline body streams. + */ +void kbase_tlstream_reset_body_streams(void); + +#if MALI_UNIT_TEST +/** + * kbase_tlstream_test - start timeline stream data generator + * @tpw_count: number of trace point writers in each context + * @msg_delay: time delay in milliseconds between trace points written by one + * writer + * @msg_count: number of trace points written by one writer + * @aux_msg: if non-zero aux messages will be included + * + * This test starts a requested number of asynchronous writers in both IRQ and + * thread context. Each writer will generate required number of test + * tracepoints (tracepoints with embedded information about writer that + * should be verified by user space reader). Tracepoints will be emitted in + * all timeline body streams. If aux_msg is non-zero writer will also + * generate not testable tracepoints (tracepoints without information about + * writer). These tracepoints are used to check correctness of remaining + * timeline message generating functions. Writer will wait requested time + * between generating another set of messages. This call blocks until all + * writers finish. + */ +void kbase_tlstream_test( + unsigned int tpw_count, + unsigned int msg_delay, + unsigned int msg_count, + int aux_msg); + +/** + * kbase_tlstream_stats - read timeline stream statistics + * @bytes_collected: will hold number of bytes read by the user + * @bytes_generated: will hold number of bytes generated by trace points + */ +void kbase_tlstream_stats(u32 *bytes_collected, u32 *bytes_generated); +#endif /* MALI_UNIT_TEST */ + +/*****************************************************************************/ + +/** + * kbase_tlstream_tl_summary_new_ctx - create context object in timeline + * summary + * @context: name of the context object + * @nr: context number + * + * Function emits a timeline message informing about context creation. Context + * is created with context number (its attribute), that can be used to link + * kbase context with userspace context. + * This message is directed to timeline summary stream. + */ +void kbase_tlstream_tl_summary_new_ctx(void *context, u32 nr); + +/** + * kbase_tlstream_tl_summary_new_gpu - create GPU object in timeline summary + * @gpu: name of the GPU object + * @id: id value of this GPU + * @core_count: number of cores this GPU hosts + * + * Function emits a timeline message informing about GPU creation. GPU is + * created with two attributes: id and core count. + * This message is directed to timeline summary stream. + */ +void kbase_tlstream_tl_summary_new_gpu(void *gpu, u32 id, u32 core_count); + +/** + * kbase_tlstream_tl_summary_new_lpu - create LPU object in timeline summary + * @lpu: name of the Logical Processing Unit object + * @nr: sequential number assigned to this LPU + * @fn: property describing this LPU's functional abilities + * + * Function emits a timeline message informing about LPU creation. LPU is + * created with two attributes: number linking this LPU with GPU's job slot + * and function bearing information about this LPU abilities. + * This message is directed to timeline summary stream. + */ +void kbase_tlstream_tl_summary_new_lpu(void *lpu, u32 nr, u32 fn); + +/** + * kbase_tlstream_tl_summary_lifelink_lpu_gpu - lifelink LPU object to GPU + * @lpu: name of the Logical Processing Unit object + * @gpu: name of the GPU object + * + * Function emits a timeline message informing that LPU object shall be deleted + * along with GPU object. + * This message is directed to timeline summary stream. + */ +void kbase_tlstream_tl_summary_lifelink_lpu_gpu(void *lpu, void *gpu); + +/** + * kbase_tlstream_tl_new_ctx - create context object in timeline + * @context: name of the context object + * @nr: context number + * + * Function emits a timeline message informing about context creation. Context + * is created with context number (its attribute), that can be used to link + * kbase context with userspace context. + */ +void kbase_tlstream_tl_new_ctx(void *context, u32 nr); + +/** + * kbase_tlstream_tl_new_atom - create atom object in timeline + * @atom: name of the atom object + * @nr: sequential number assigned to this atom + * + * Function emits a timeline message informing about atom creation. Atom is + * created with atom number (its attribute) that links it with actual work + * bucket id understood by hardware. + */ +void kbase_tlstream_tl_new_atom(void *atom, u32 nr); + +/** + * kbase_tlstream_tl_del_ctx - destroy context object in timeline + * @context: name of the context object + * + * Function emits a timeline message informing that context object ceased to + * exist. + */ +void kbase_tlstream_tl_del_ctx(void *context); + +/** + * kbase_tlstream_tl_del_atom - destroy atom object in timeline + * @atom: name of the atom object + * + * Function emits a timeline message informing that atom object ceased to + * exist. + */ +void kbase_tlstream_tl_del_atom(void *atom); + +/** + * kbase_tlstream_tl_ret_gpu_ctx - retain GPU by context + * @gpu: name of the GPU object + * @context: name of the context object + * + * Function emits a timeline message informing that GPU object is being held + * by context and must not be deleted unless it is released. + */ +void kbase_tlstream_tl_ret_gpu_ctx(void *gpu, void *context); + +/** + * kbase_tlstream_tl_ret_atom_ctx - retain atom by context + * @atom: name of the atom object + * @context: name of the context object + * + * Function emits a timeline message informing that atom object is being held + * by context and must not be deleted unless it is released. + */ +void kbase_tlstream_tl_ret_atom_ctx(void *atom, void *context); + +/** + * kbase_tlstream_tl_ret_atom_lpu - retain atom by LPU + * @atom: name of the atom object + * @lpu: name of the Logical Processing Unit object + * + * Function emits a timeline message informing that atom object is being held + * by LPU and must not be deleted unless it is released. + */ +void kbase_tlstream_tl_ret_atom_lpu(void *atom, void *lpu); + +/** + * kbase_tlstream_tl_nret_gpu_ctx - release GPU by context + * @gpu: name of the GPU object + * @context: name of the context object + * + * Function emits a timeline message informing that GPU object is being released + * by context. + */ +void kbase_tlstream_tl_nret_gpu_ctx(void *gpu, void *context); + +/** + * kbase_tlstream_tl_nret_atom_ctx - release atom by context + * @atom: name of the atom object + * @context: name of the context object + * + * Function emits a timeline message informing that atom object is being + * released by context. + */ +void kbase_tlstream_tl_nret_atom_ctx(void *atom, void *context); + +/** + * kbase_tlstream_tl_nret_atom_lpu - release atom by LPU + * @atom: name of the atom object + * @lpu: name of the Logical Processing Unit object + * + * Function emits a timeline message informing that atom object is being + * released by LPU. + */ +void kbase_tlstream_tl_nret_atom_lpu(void *atom, void *lpu); + +/** + * kbase_tlstream_aux_pm_state - timeline message: power management state + * @core_type: core type (shader, tiler, l2 cache, l3 cache) + * @state: 64bits bitmask reporting power state of the cores (1-ON, 0-OFF) + */ +void kbase_tlstream_aux_pm_state(u32 core_type, u64 state); + +/** + * kbase_tlstream_aux_job_softstop - soft job stop occurred + * @js_id: job slot id + */ +void kbase_tlstream_aux_job_softstop(u32 js_id); + +/** + * kbase_tlstream_aux_pagefault - timeline message: MMU page fault event + * resulting in new pages being mapped + * @mmu_as: MMU address space number + * @page_count: number of currently used pages + */ +void kbase_tlstream_aux_pagefault(u32 mmu_as, u32 page_count); + +/** + * kbase_tlstream_aux_pagesalloc - timeline message: total number of allocated + * pages is changed + * @page_count_change: number of pages to be added or subtracted (according to + * the sign) + */ +void kbase_tlstream_aux_pagesalloc(s64 page_count_change); + +#endif /* _KBASE_TLSTREAM_H */ + |