Merge "msm: kgsl: Execute user profiling commands in an IB" into 8901-fairphone-p-mp-release (170ae98e) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/gpu/msm/adreno_ringbuffer.c

+45 −12

Original line number	Diff line number	Diff line
		/* Copyright (c) 2002,2007-2018, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2002,2007-2018,2019, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -299,6 +299,11 @@ static int _adreno_ringbuffer_probe(struct adreno_device *adreno_dev,
		PAGE_SIZE, 0, KGSL_MEMDESC_PRIVILEGED, "pagetable_desc");
		if (ret)
		return ret;

		/* allocate a chunk of memory to create user profiling IB1s */
		kgsl_allocate_global(KGSL_DEVICE(adreno_dev), &rb->profile_desc,
		PAGE_SIZE, KGSL_MEMFLAGS_GPUREADONLY, 0, "profile_desc");

		return kgsl_allocate_global(KGSL_DEVICE(adreno_dev), &rb->buffer_desc,
		KGSL_RB_SIZE, KGSL_MEMFLAGS_GPUREADONLY,
		0, "ringbuffer");
		@@ -344,7 +349,7 @@ static void _adreno_ringbuffer_close(struct adreno_device *adreno_dev,

		kgsl_free_global(device, &rb->pagetable_desc);
		kgsl_free_global(device, &rb->preemption_desc);

		kgsl_free_global(device, &rb->profile_desc);
		kgsl_free_global(device, &rb->buffer_desc);
		kgsl_del_event_group(&rb->events);
		memset(rb, 0, sizeof(struct adreno_ringbuffer));
		@@ -837,6 +842,37 @@ static inline int _get_alwayson_counter(struct adreno_device *adreno_dev,
		return (unsigned int)(p - cmds);
		}

		/* This is the maximum possible size for 64 bit targets */
		#define PROFILE_IB_DWORDS 4
		#define PROFILE_IB_SLOTS (PAGE_SIZE / (PROFILE_IB_DWORDS << 2))

		static int set_user_profiling(struct adreno_device *adreno_dev,
		struct adreno_ringbuffer rb, u32 cmds, u64 gpuaddr)
		{
		int dwords, index = 0;
		u64 ib_gpuaddr;
		u32 *ib;

		if (!rb->profile_desc.hostptr)
		return 0;

		ib = ((u32 *) rb->profile_desc.hostptr) +
		(rb->profile_index * PROFILE_IB_DWORDS);
		ib_gpuaddr = rb->profile_desc.gpuaddr +
		(rb->profile_index * (PROFILE_IB_DWORDS << 2));

		dwords = _get_alwayson_counter(adreno_dev, ib, gpuaddr);

		/* Make an indirect buffer for the request */
		cmds[index++] = cp_mem_packet(adreno_dev, CP_INDIRECT_BUFFER_PFE, 2, 1);
		index += cp_gpuaddr(adreno_dev, &cmds[index], ib_gpuaddr);
		cmds[index++] = dwords;

		rb->profile_index = (rb->profile_index + 1) % PROFILE_IB_SLOTS;

		return index;
		}

		/* adreno_rindbuffer_submitcmd - submit userspace IBs to the GPU */
		int adreno_ringbuffer_submitcmd(struct adreno_device *adreno_dev,
		struct kgsl_drawobj_cmd *cmdobj,
		@@ -937,14 +973,11 @@ int adreno_ringbuffer_submitcmd(struct adreno_device *adreno_dev,
		!adreno_is_a3xx(adreno_dev) &&
		(cmdobj->profiling_buf_entry != NULL)) {
		user_profiling = true;
		dwords += 6;

		/*
		* REG_TO_MEM packet on A5xx and above needs another ordinal.
		* Add 2 more dwords since we do profiling before and after.
		* User side profiling uses two IB1s, one before with 4 dwords
		* per INDIRECT_BUFFER_PFE call
		*/
		if (!ADRENO_LEGACY_PM4(adreno_dev))
		dwords += 2;
		dwords += 8;

		/*
		* we want to use an adreno_submit_time struct to get the
		@@ -1003,11 +1036,11 @@ int adreno_ringbuffer_submitcmd(struct adreno_device *adreno_dev,
		}

		/*
		* Add cmds to read the GPU ticks at the start of command obj and
		* Add IB1 to read the GPU ticks at the start of command obj and
		* write it into the appropriate command obj profiling buffer offset
		*/
		if (user_profiling) {
		cmds += _get_alwayson_counter(adreno_dev, cmds,
		cmds += set_user_profiling(adreno_dev, rb, cmds,
		cmdobj->profiling_buffer_gpuaddr +
		offsetof(struct kgsl_drawobj_profiling_buffer,
		gpu_ticks_submitted));
		@@ -1055,11 +1088,11 @@ int adreno_ringbuffer_submitcmd(struct adreno_device *adreno_dev,
		}

		/*
		* Add cmds to read the GPU ticks at the end of command obj and
		* Add IB1 to read the GPU ticks at the end of command obj and
		* write it into the appropriate command obj profiling buffer offset
		*/
		if (user_profiling) {
		cmds += _get_alwayson_counter(adreno_dev, cmds,
		cmds += set_user_profiling(adreno_dev, rb, cmds,
		cmdobj->profiling_buffer_gpuaddr +
		offsetof(struct kgsl_drawobj_profiling_buffer,
		gpu_ticks_retired));

drivers/gpu/msm/adreno_ringbuffer.h

+13 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2002,2007-2018, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2002,2007-2018,2019, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -135,6 +135,18 @@ struct adreno_ringbuffer {
		unsigned long sched_timer;
		enum adreno_dispatcher_starve_timer_states starve_timer_state;
		spinlock_t preempt_lock;
		/**
		* @profile_desc: global memory to construct IB1s to do user side
		* profiling
		*/
		struct kgsl_memdesc profile_desc;
		/**
		* @profile_index: Pointer to the next "slot" in profile_desc for a user
		* profiling IB1. This allows for PAGE_SIZE / 16 = 256 simultaneous
		* commands per ringbuffer with user profiling enabled
		* enough.
		*/
		u32 profile_index;
		};

		/* Returns the current ringbuffer */