Hi!
On Tue, Apr 21, 2020 at 05:07:05PM -0400, Rodrigo Siqueira wrote:
> On 04/15, Maxime Ripard wrote:
> > On Mon, Oct 21, 2019 at 10:00:39PM -0300, Brian Starkey wrote:
> > > Add a test which makes commits using the writeback connector, and
> > > checks the output buffer hash to make sure it is/isn't written as
> > > appropriate.
> > >
> > > V6: Simon Ser
> > > - Add igt documentation with igt_describe
> > > - Replace int ret by unsigned int fd_id when calling igt_create_fb
> > > - Add a descriptive error message if sync_fence_wait fail
> > > - Replace color_idx variable by i
> > > - Use in_fb instead of out_fb for getting the expected CRC
> > > - Drop unnecessary parentheses
> > > - Replace igt_fb_mod_to_tiling to DRM_FORMAT_MOD_LINEAR
> > >
> > > Signed-off-by: Brian Starkey <brian.starkey@xxxxxxx>
> > > [rebased and updated the patch to address feedback]
> > > Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>
> > > ---
> > > tests/kms_writeback.c | 123 ++++++++++++++++++++++++++++++++++++++++++
> > > 1 file changed, 123 insertions(+)
> > >
> > > diff --git a/tests/kms_writeback.c b/tests/kms_writeback.c
> > > index a373ec4d..068595b9 100644
> > > --- a/tests/kms_writeback.c
> > > +++ b/tests/kms_writeback.c
> > > @@ -30,6 +30,7 @@
> > > #include "igt.h"
> > > #include "igt_core.h"
> > > #include "igt_fb.h"
> > > +#include "sw_sync.h"
> > >
> > > IGT_TEST_DESCRIPTION("Exercise writeback feature.");
> > >
> > > @@ -196,6 +197,115 @@ static void writeback_test_fb(igt_output_t *output, igt_fb_t *valid_fb, igt_fb_t
> > > igt_assert(ret == -EINVAL);
> > > }
> > >
> > > +static void fill_fb(igt_fb_t *fb, double color[3])
> > > +{
> > > + cairo_t *cr = igt_get_cairo_ctx(fb->fd, fb);
> > > + igt_assert(cr);
> > > +
> > > + igt_paint_color(cr, 0, 0, fb->width, fb->height,
> > > + color[0], color[1], color[2]);
> > > +}
> > > +
> >
> > On which platform did you test this? On Arm (but I would assume
> > anything !i915), this will fire up an assert.
> >
> > I've replaced this with a igt_fb_map_buffer/memset, and it works as
> > expected.
>
> Could you share your fix for this issue? Since you already have a
> solution that you know that works on ARM, I can just use it for avoiding
> an unnecessary round of review in the next version.
Sure, you'll find it attached
Maxime
diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index 97a656c8..be825220 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -3812,12 +3812,9 @@ int igt_fb_get_crc(struct igt_fb *fb, igt_crc_t *crc)
if (fb->num_planes != 1)
return -EINVAL;
- if (fb->is_dumb)
- ptr = kmstest_dumb_map_buffer(fb->fd, fb->gem_handle, fb->size,
- PROT_READ);
- else
- ptr = gem_mmap__gtt(fb->fd, fb->gem_handle, fb->size,
- PROT_READ);
+ ptr = igt_fb_map_buffer(fb->fd, fb);
+ igt_assert(ptr);
+ map = ptr;
/*
* Framebuffers are often uncached, which can make byte-wise accesses
@@ -3846,7 +3843,7 @@ int igt_fb_get_crc(struct igt_fb *fb, igt_crc_t *crc)
crc->crc[0] = hash;
free(line);
- munmap(map, fb->size);
+ igt_fb_unmap_buffer(fb, map);
return 0;
#undef FNV1a_OFFSET_BIAS
diff --git a/tests/kms_writeback.c b/tests/kms_writeback.c
index 068595b9..c2ee05dd 100644
--- a/tests/kms_writeback.c
+++ b/tests/kms_writeback.c
@@ -149,7 +149,7 @@ static int do_writeback_test(igt_output_t *output, uint32_t fb_id,
igt_output_set_prop_value(output, IGT_CONNECTOR_CRTC_ID, config->crtc->crtc_id);
igt_output_set_prop_value(output, IGT_CONNECTOR_WRITEBACK_FB_ID, fb_id);
- igt_output_set_prop_value(output, IGT_CONNECTOR_WRITEBACK_OUT_FENCE_PTR, (uint64_t)out_fence_ptr);
+ igt_output_set_prop_value(output, IGT_CONNECTOR_WRITEBACK_OUT_FENCE_PTR, (uint64_t)(uintptr_t)out_fence_ptr);
if (ptr_valid)
*out_fence_ptr = 0;
@@ -197,13 +197,18 @@ static void writeback_test_fb(igt_output_t *output, igt_fb_t *valid_fb, igt_fb_t
igt_assert(ret == -EINVAL);
}
-static void fill_fb(igt_fb_t *fb, double color[3])
+static void fill_fb(igt_fb_t *fb, uint32_t pixel)
{
- cairo_t *cr = igt_get_cairo_ctx(fb->fd, fb);
- igt_assert(cr);
+ void *ptr;
- igt_paint_color(cr, 0, 0, fb->width, fb->height,
- color[0], color[1], color[2]);
+ igt_assert(fb->drm_format == DRM_FORMAT_XRGB8888);
+
+ ptr = igt_fb_map_buffer(fb->fd, fb);
+ igt_assert(ptr);
+
+ memset(ptr, pixel, fb->strides[0] * fb->height);
+
+ igt_fb_unmap_buffer(fb, ptr);
}
static void get_and_wait_out_fence(igt_output_t *output)
@@ -222,11 +227,8 @@ static void writeback_sequence(igt_output_t *output, igt_plane_t *plane,
igt_fb_t *in_fb, igt_fb_t *out_fbs[], int n_commits)
{
int i;
- double in_fb_colors[2][3] = {
- { 1.0, 0.0, 0.0 },
- { 0.0, 1.0, 0.0 },
- };
- double clear_color[3] = { 1.0, 1.0, 1.0 };
+ uint32_t in_fb_colors[2] = { 0xffff0000, 0xff00ff00 };
+ uint32_t clear_color = 0xffffffff;
igt_crc_t cleared_crc, out_expected;
for (i = 0; i < n_commits; i++) {
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