From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Extend the rotated vma mock selftest to cover remapped vmas as
well.
TODO: reindent the loops I guess? Left like this for now to
ease review
v2: Include the vma type in the error message (Chris)
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/selftests/i915_vma.c | 74 +++++++++++++++++++++--
1 file changed, 68 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c
b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 4fc49c27f13c..64c5055c83f9 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -58,7 +58,7 @@ static bool assert_vma(struct i915_vma *vma,
static struct i915_vma *
checked_vma_instance(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
- struct i915_ggtt_view *view)
+ const struct i915_ggtt_view *view)
{
struct i915_vma *vma;
bool ok = true;
@@ -395,13 +395,63 @@ assert_rotated(struct drm_i915_gem_object *obj,
return sg;
}
+static unsigned long remapped_index(const struct intel_remapped_info *r,
+ unsigned int n,
+ unsigned int x,
+ unsigned int y)
+{
+ return (r->plane[n].stride * y +
+ r->plane[n].offset + x);
+}
+
+static struct scatterlist *
+assert_remapped(struct drm_i915_gem_object *obj,
+ const struct intel_remapped_info *r, unsigned int n,
+ struct scatterlist *sg)
+{
+ unsigned int x, y;
+
+ for (y = 0; y < r->plane[n].height; y++) {
+ for (x = 0; x < r->plane[n].width; x++) {
+ unsigned long src_idx;
+ dma_addr_t src;
+
+ if (!sg) {
+ pr_err("Invalid sg table: too short at plane
%d, (%d, %d)!\n",
+ n, x, y);
+ return ERR_PTR(-EINVAL);
+ }
+
+ src_idx = remapped_index(r, n, x, y);
+ src = i915_gem_object_get_dma_address(obj, src_idx);
+
+ if (sg_dma_len(sg) != PAGE_SIZE) {
+ pr_err("Invalid sg.length, found %d, expected
%lu for remapped page (%d, %d) [src index %lu]\n",
+ sg_dma_len(sg), PAGE_SIZE,
+ x, y, src_idx);
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (sg_dma_address(sg) != src) {
+ pr_err("Invalid address for remapped page (%d,
%d) [src index %lu]\n",
+ x, y, src_idx);
+ return ERR_PTR(-EINVAL);
+ }
+
+ sg = sg_next(sg);
+ }
+ }
+
+ return sg;
+}
+
static unsigned int rotated_size(const struct intel_remapped_plane_info *a,
const struct intel_remapped_plane_info *b)
{
return a->width * a->height + b->width * b->height;
}
-static int igt_vma_rotate(void *arg)
+static int igt_vma_rotate_remap(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_address_space *vm = &i915->ggtt.vm;
@@ -424,6 +474,11 @@ static int igt_vma_rotate(void *arg)
{ .width = 6, .height = 4, .stride = 6 },
{ }
}, *a, *b;
+ enum i915_ggtt_view_type types[] = {
+ I915_GGTT_VIEW_ROTATED,
+ I915_GGTT_VIEW_REMAPPED,
+ 0,
+ }, *t;
const unsigned int max_pages = 64;
int err = -ENOMEM;
@@ -435,6 +490,7 @@ static int igt_vma_rotate(void *arg)
if (IS_ERR(obj))
goto out;
+ for (t = types; *t; t++) {
for (a = planes; a->width; a++) {
for (b = planes + ARRAY_SIZE(planes); b-- != planes; ) {
struct i915_ggtt_view view;
@@ -445,7 +501,7 @@ static int igt_vma_rotate(void *arg)
GEM_BUG_ON(max_offset > max_pages);
max_offset = max_pages - max_offset;
- view.type = I915_GGTT_VIEW_ROTATED;
+ view.type = *t;
view.rotated.plane[0] = *a;
view.rotated.plane[1] = *b;
@@ -495,9 +551,14 @@ static int igt_vma_rotate(void *arg)
sg = vma->pages->sgl;
for (n = 0; n <
ARRAY_SIZE(view.rotated.plane); n++) {
- sg = assert_rotated(obj,
&view.rotated, n, sg);
+ if (view.type ==
I915_GGTT_VIEW_ROTATED)
+ sg =
assert_rotated(obj, &view.rotated, n, sg);
+ else
+ sg =
assert_remapped(obj, &view.remapped, n, sg);
if (IS_ERR(sg)) {
- pr_err("Inconsistent
VMA pages for plane %d: [(%d, %d, %d, %d), (%d, %d, %d, %d)]\n", n,
+ pr_err("Inconsistent %s
VMA pages for plane %d: [(%d, %d, %d, %d), (%d, %d, %d, %d)]\n",
+ view.type ==
I915_GGTT_VIEW_ROTATED ?
+ "rotated" :
"remapped", n,
view.rotated.plane[0].width,
view.rotated.plane[0].height,
view.rotated.plane[0].stride,
@@ -516,6 +577,7 @@ static int igt_vma_rotate(void *arg)
}
}
}
+ }
out_object:
i915_gem_object_put(obj);
@@ -719,7 +781,7 @@ int i915_vma_mock_selftests(void)
static const struct i915_subtest tests[] = {
SUBTEST(igt_vma_create),
SUBTEST(igt_vma_pin1),
- SUBTEST(igt_vma_rotate),
+ SUBTEST(igt_vma_rotate_remap),
SUBTEST(igt_vma_partial),
};
struct drm_i915_private *i915;
--
2.18.1
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