diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-12-22 08:36:22 +0000 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-12-27 14:16:57 +0100 |
commit | d1bac3a78111c82befc8c8fc185b2d90a64ed4b6 (patch) | |
tree | 2406446dcc089d7ca379948a70b10c03da60e508 /drivers/gpu | |
parent | c1b702c9a54316362b3c82e2fa36371ae6f4ab53 (diff) | |
download | linux-d1bac3a78111c82befc8c8fc185b2d90a64ed4b6.tar.bz2 |
drm: kselftest for drm_mm and restricted color eviction
Check that after applying the driver's color adjustment, restricted
eviction scanning finds a suitable hole.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-20-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/selftests/drm_mm_selftests.h | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/selftests/test-drm_mm.c | 116 |
2 files changed, 113 insertions, 4 deletions
diff --git a/drivers/gpu/drm/selftests/drm_mm_selftests.h b/drivers/gpu/drm/selftests/drm_mm_selftests.h index 0a3a7e32e5f7..6a4575fdc1c0 100644 --- a/drivers/gpu/drm/selftests/drm_mm_selftests.h +++ b/drivers/gpu/drm/selftests/drm_mm_selftests.h @@ -20,3 +20,4 @@ selftest(evict_range, igt_evict_range) selftest(topdown, igt_topdown) selftest(color, igt_color) selftest(color_evict, igt_color_evict) +selftest(color_evict_range, igt_color_evict_range) diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c index 6584e4ce96af..fb8f7056225b 100644 --- a/drivers/gpu/drm/selftests/test-drm_mm.c +++ b/drivers/gpu/drm/selftests/test-drm_mm.c @@ -1855,6 +1855,7 @@ out: } static int evict_color(struct drm_mm *mm, + u64 range_start, u64 range_end, struct evict_node *nodes, unsigned int *order, unsigned int count, @@ -1868,7 +1869,9 @@ static int evict_color(struct drm_mm *mm, struct drm_mm_node tmp; int err; - drm_mm_init_scan(mm, size, alignment, color); + drm_mm_init_scan_with_range(mm, + size, alignment, color, + range_start, range_end); if (!evict_nodes(mm, nodes, order, count, &evict_list)) @@ -1886,6 +1889,12 @@ static int evict_color(struct drm_mm *mm, return err; } + if (tmp.start < range_start || tmp.start + tmp.size > range_end) { + pr_err("Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n", + tmp.start, tmp.size, range_start, range_end); + err = -EINVAL; + } + if (colors_abutt(&tmp)) err = -EINVAL; @@ -1954,7 +1963,7 @@ static int igt_color_evict(void *ignored) for (mode = evict_modes; mode->name; mode++) { for (n = 1; n <= total_size; n <<= 1) { drm_random_reorder(order, total_size, &prng); - err = evict_color(&mm, + err = evict_color(&mm, 0, U64_MAX, nodes, order, total_size, n, 1, color++, mode); @@ -1967,7 +1976,7 @@ static int igt_color_evict(void *ignored) for (n = 1; n < total_size; n <<= 1) { drm_random_reorder(order, total_size, &prng); - err = evict_color(&mm, + err = evict_color(&mm, 0, U64_MAX, nodes, order, total_size, total_size/2, n, color++, mode); @@ -1984,7 +1993,7 @@ static int igt_color_evict(void *ignored) DRM_MM_BUG_ON(!nsize); drm_random_reorder(order, total_size, &prng); - err = evict_color(&mm, + err = evict_color(&mm, 0, U64_MAX, nodes, order, total_size, nsize, n, color++, mode); @@ -2010,6 +2019,105 @@ err: return ret; } +static int igt_color_evict_range(void *ignored) +{ + DRM_RND_STATE(prng, random_seed); + const unsigned int total_size = 8192; + const unsigned int range_size = total_size / 2; + const unsigned int range_start = total_size / 4; + const unsigned int range_end = range_start + range_size; + const struct insert_mode *mode; + unsigned long color = 0; + struct drm_mm mm; + struct evict_node *nodes; + struct drm_mm_node *node, *next; + unsigned int *order, n; + int ret, err; + + /* Like igt_color_evict(), but limited to small portion of the full + * drm_mm range. + */ + + ret = -ENOMEM; + nodes = vzalloc(total_size * sizeof(*nodes)); + if (!nodes) + goto err; + + order = drm_random_order(total_size, &prng); + if (!order) + goto err_nodes; + + ret = -EINVAL; + drm_mm_init(&mm, 0, 2*total_size - 1); + mm.color_adjust = separate_adjacent_colors; + for (n = 0; n < total_size; n++) { + if (!expect_insert(&mm, &nodes[n].node, + 1, 0, color++, + &insert_modes[0])) { + pr_err("insert failed, step %d\n", n); + goto out; + } + } + + for (mode = evict_modes; mode->name; mode++) { + for (n = 1; n <= range_size; n <<= 1) { + drm_random_reorder(order, range_size, &prng); + err = evict_color(&mm, range_start, range_end, + nodes, order, total_size, + n, 1, color++, + mode); + if (err) { + pr_err("%s evict_color(size=%u) failed for range [%x, %x]\n", + mode->name, n, range_start, range_end); + goto out; + } + } + + for (n = 1; n < range_size; n <<= 1) { + drm_random_reorder(order, total_size, &prng); + err = evict_color(&mm, range_start, range_end, + nodes, order, total_size, + range_size/2, n, color++, + mode); + if (err) { + pr_err("%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n", + mode->name, total_size/2, n, range_start, range_end); + goto out; + } + } + + for_each_prime_number_from(n, 1, min(range_size, max_prime)) { + unsigned int nsize = (range_size - n + 1) / 2; + + DRM_MM_BUG_ON(!nsize); + + drm_random_reorder(order, total_size, &prng); + err = evict_color(&mm, range_start, range_end, + nodes, order, total_size, + nsize, n, color++, + mode); + if (err) { + pr_err("%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n", + mode->name, nsize, n, range_start, range_end); + goto out; + } + } + } + + ret = 0; +out: + if (ret) + drm_mm_debug_table(&mm, __func__); + drm_mm_for_each_node_safe(node, next, &mm) + drm_mm_remove_node(node); + drm_mm_takedown(&mm); + kfree(order); +err_nodes: + vfree(nodes); +err: + return ret; +} + #include "drm_selftest.c" static int __init test_drm_mm_init(void) |