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msm: kgsl: Add tracepoints for the pools

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Add trace points to track credit and debits to the KGSL memory pools.

Change-Id: Ic0dedbade3ecac12e625a08a9be372bd857f68d2
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Neeraja P <neerp@codeaurora.org>
This commit is contained in:
Jordan Crouse 2020-12-01 13:49:22 -07:00 • committed by Neeraja P
commit 6eb3621bef
2 changed files with 88 additions and 2 deletions
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14
drivers/gpu/msm/kgsl_pool.c
View file

@ -11,6 +11,7 @@
#include "kgsl_device.h"
#include "kgsl_pool.h"
#include "kgsl_sharedmem.h"
#include "kgsl_trace.h"
/**
* struct kgsl_page_pool - Structure to hold information for the pool
@ -108,6 +109,8 @@ _kgsl_pool_add_page(struct kgsl_page_pool *pool, struct page *p)
list_add_tail(&p->lru, &pool->page_list);
pool->page_count++;
spin_unlock(&pool->list_lock);
trace_kgsl_pool_add_page(pool->pool_order, pool->page_count);
mod_node_page_state(page_pgdat(p), NR_KERNEL_MISC_RECLAIMABLE,
(1 << pool->pool_order));
}
@ -128,6 +131,8 @@ _kgsl_pool_get_page(struct kgsl_page_pool *pool)
pool->page_count--;
list_del(&p->lru);
spin_unlock(&pool->list_lock);
trace_kgsl_pool_get_page(pool->pool_order, pool->page_count);
mod_node_page_state(page_pgdat(p), NR_KERNEL_MISC_RECLAIMABLE,
-(1 << pool->pool_order));
return p;
@ -179,6 +184,7 @@ _kgsl_pool_shrink(struct kgsl_page_pool *pool,
__free_pages(page, pool->pool_order);
pcount += (1 << pool->pool_order);
trace_kgsl_pool_free_page(pool->pool_order);
}
return pcount;
@ -353,10 +359,11 @@ static int kgsl_pool_alloc_page(int *page_size, struct page **pages,
if (order > 0) {
size = PAGE_SIZE << --order;
goto eagain;
} else
return -ENOMEM;
}
trace_kgsl_pool_alloc_page_system(order);
goto done;
}
@ -376,6 +383,7 @@ static int kgsl_pool_alloc_page(int *page_size, struct page **pages,
page = alloc_pages(gfp_mask, order);
if (page == NULL)
return -ENOMEM;
trace_kgsl_pool_alloc_page_system(order);
goto done;
}
}
@ -398,6 +406,8 @@ static int kgsl_pool_alloc_page(int *page_size, struct page **pages,
} else
return -ENOMEM;
}
trace_kgsl_pool_alloc_page_system(order);
}
done:
@ -412,6 +422,7 @@ done:
return pcount;
eagain:
trace_kgsl_pool_try_page_lower(get_order(*page_size));
*page_size = kgsl_get_page_size(size, ilog2(size));
*align = ilog2(*page_size);
return -EAGAIN;
@ -490,6 +501,7 @@ static void kgsl_pool_free_page(struct page *page)
/* Give back to system as not added to pool */
__free_pages(page, page_order);
trace_kgsl_pool_free_page(page_order);
}
/* Functions for the shrinker */

76
drivers/gpu/msm/kgsl_trace.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2011-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2011-2021, The Linux Foundation. All rights reserved.
*/
#if !defined(_KGSL_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
@ -1338,6 +1338,80 @@ TRACE_EVENT(kgsl_drawobj_timeline,
)
);
TRACE_EVENT(kgsl_pool_add_page,
TP_PROTO(int order, u32 count),
TP_ARGS(order, count),
TP_STRUCT__entry(
__field(int, order)
__field(u32, count)
),
TP_fast_assign(
__entry->order = order;
__entry->count = count;
),
TP_printk("order=%d count=%u",
__entry->order, __entry->count
)
);
TRACE_EVENT(kgsl_pool_get_page,
TP_PROTO(int order, u32 count),
TP_ARGS(order, count),
TP_STRUCT__entry(
__field(int, order)
__field(u32, count)
),
TP_fast_assign(
__entry->order = order;
__entry->count = count;
),
TP_printk("order=%d count=%u",
__entry->order, __entry->count
)
);
TRACE_EVENT(kgsl_pool_alloc_page_system,
TP_PROTO(int order),
TP_ARGS(order),
TP_STRUCT__entry(
__field(int, order)
),
TP_fast_assign(
__entry->order = order;
),
TP_printk("order=%d",
__entry->order
)
);
TRACE_EVENT(kgsl_pool_try_page_lower,
TP_PROTO(int order),
TP_ARGS(order),
TP_STRUCT__entry(
__field(int, order)
),
TP_fast_assign(
__entry->order = order;
),
TP_printk("order=%d",
__entry->order
)
);
TRACE_EVENT(kgsl_pool_free_page,
TP_PROTO(int order),
TP_ARGS(order),
TP_STRUCT__entry(
__field(int, order)
),
TP_fast_assign(
__entry->order = order;
),
TP_printk("order=%d",
__entry->order
)
);
#endif /* _KGSL_TRACE_H */
/* This part must be outside protection */