1/*
2 * Copyright 2009 Jerome Glisse.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Jerome Glisse
23 */
24#include <drm/drmP.h>
25#include <drm/radeon_drm.h>
26#include "radeon_reg.h"
27#include "radeon.h"
28
29void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize,
30			   unsigned sdomain, unsigned ddomain)
31{
32	struct radeon_bo *dobj = NULL;
33	struct radeon_bo *sobj = NULL;
34	struct radeon_fence *fence = NULL;
35	uint64_t saddr, daddr;
36	unsigned long start_jiffies;
37	unsigned long end_jiffies;
38	unsigned long time;
39	unsigned i, n, size;
40	int r;
41
42	size = bsize;
43	n = 1024;
44	r = radeon_bo_create(rdev, NULL, size, true, sdomain, &sobj);
45	if (r) {
46		goto out_cleanup;
47	}
48	r = radeon_bo_reserve(sobj, false);
49	if (unlikely(r != 0))
50		goto out_cleanup;
51	r = radeon_bo_pin(sobj, sdomain, &saddr);
52	radeon_bo_unreserve(sobj);
53	if (r) {
54		goto out_cleanup;
55	}
56	r = radeon_bo_create(rdev, NULL, size, true, ddomain, &dobj);
57	if (r) {
58		goto out_cleanup;
59	}
60	r = radeon_bo_reserve(dobj, false);
61	if (unlikely(r != 0))
62		goto out_cleanup;
63	r = radeon_bo_pin(dobj, ddomain, &daddr);
64	radeon_bo_unreserve(dobj);
65	if (r) {
66		goto out_cleanup;
67	}
68
69	/* r100 doesn't have dma engine so skip the test */
70	if (rdev->asic->copy_dma) {
71
72		start_jiffies = jiffies;
73		for (i = 0; i < n; i++) {
74			r = radeon_fence_create(rdev, &fence);
75			if (r) {
76				goto out_cleanup;
77			}
78
79			r = radeon_copy_dma(rdev, saddr, daddr,
80					size / RADEON_GPU_PAGE_SIZE, fence);
81
82			if (r) {
83				goto out_cleanup;
84			}
85			r = radeon_fence_wait(fence, false);
86			if (r) {
87				goto out_cleanup;
88			}
89			radeon_fence_unref(&fence);
90		}
91		end_jiffies = jiffies;
92		time = end_jiffies - start_jiffies;
93		time = jiffies_to_msecs(time);
94		if (time > 0) {
95			i = ((n * size) >> 10) / time;
96			printk(KERN_INFO "radeon: dma %u bo moves of %ukb from"
97					" %d to %d in %lums (%ukb/ms %ukb/s %uM/s)\n",
98					n, size >> 10,
99					sdomain, ddomain, time,
100					i, i * 1000, (i * 1000) / 1024);
101		}
102	}
103
104	start_jiffies = jiffies;
105	for (i = 0; i < n; i++) {
106		r = radeon_fence_create(rdev, &fence);
107		if (r) {
108			goto out_cleanup;
109		}
110		r = radeon_copy_blit(rdev, saddr, daddr, size / RADEON_GPU_PAGE_SIZE, fence);
111		if (r) {
112			goto out_cleanup;
113		}
114		r = radeon_fence_wait(fence, false);
115		if (r) {
116			goto out_cleanup;
117		}
118		radeon_fence_unref(&fence);
119	}
120	end_jiffies = jiffies;
121	time = end_jiffies - start_jiffies;
122	time = jiffies_to_msecs(time);
123	if (time > 0) {
124		i = ((n * size) >> 10) / time;
125		printk(KERN_INFO "radeon: blit %u bo moves of %ukb from %d to %d"
126		       " in %lums (%ukb/ms %ukb/s %uM/s)\n", n, size >> 10,
127		       sdomain, ddomain, time, i, i * 1000, (i * 1000) / 1024);
128	}
129out_cleanup:
130	if (sobj) {
131		r = radeon_bo_reserve(sobj, false);
132		if (likely(r == 0)) {
133			radeon_bo_unpin(sobj);
134			radeon_bo_unreserve(sobj);
135		}
136		radeon_bo_unref(&sobj);
137	}
138	if (dobj) {
139		r = radeon_bo_reserve(dobj, false);
140		if (likely(r == 0)) {
141			radeon_bo_unpin(dobj);
142			radeon_bo_unreserve(dobj);
143		}
144		radeon_bo_unref(&dobj);
145	}
146	if (fence) {
147		radeon_fence_unref(&fence);
148	}
149	if (r) {
150		printk(KERN_WARNING "Error while benchmarking BO move.\n");
151	}
152}
153
154void radeon_benchmark(struct radeon_device *rdev)
155{
156	radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
157			      RADEON_GEM_DOMAIN_VRAM);
158	radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
159			      RADEON_GEM_DOMAIN_GTT);
160}
161