Hi Daniel,
Thank you for the review.
On Wednesday 21 Sep 2016 09:51:44 Daniel Vetter wrote:
> On Thu, Sep 08, 2016 at 05:44:24PM +0300, Laurent Pinchart wrote:
> > The driver needs the number of bytes per pixel, not the bpp and depth
> > info meant for fbdev compatibility. Use the right API.
> >
> > Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> > ---
> > Changes since v3:
> >
> > - Renamed bpp to cpp
> > ---
> >
> > drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 14 +++++++-------
> > drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 3 ++-
> > 2 files changed, 9 insertions(+), 8 deletions(-)
> >
> > Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> > Cc: Christian König <christian.koenig@xxxxxxx>
> > Cc: Michel Dänzer <michel@xxxxxxxxxxx>
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index bf033b58056c..0727946db189
> > 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> > @@ -62,12 +62,12 @@ static struct fb_ops amdgpufb_ops = {
> >
> > };
> >
> > -int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp,
> > bool tiled)
> > +int amdgpu_align_pitch(struct amdgpu_device *adev, int> width, int cpp,
> > bool tiled)
> > {
> > int aligned = width;
> > int pitch_mask = 0;
> >
> > - switch (bpp / 8) {
> > + switch (cpp) {
> > case 1:
> > pitch_mask = 255;
> > break;
> > @@ -82,7 +82,7 @@ int amdgpu_align_pitch(struct amdgpu_device *adev, int
> > width, int bpp, bool tile
> > aligned += pitch_mask;
> > aligned &= ~pitch_mask;
> >
> > - return aligned;
> > + return aligned * cpp;
>
> Now you multiply by cpp after the rounding.
That's right, but I don't think that's a problem, as all bpp values returned
by drm_fb_get_bpp_depth() are multiple of 8 bits.
> Otherwise looks reasonable.
> -Daniel
>
> > }
> >
> > static void amdgpufb_destroy_pinned_object(struct drm_gem_object *gobj)
> > @@ -111,13 +111,13 @@ static int amdgpufb_create_pinned_object(struct
> > amdgpu_fbdev *rfbdev,
> > int ret;
> > int aligned_size, size;
> > int height = mode_cmd->height;
> > - u32 bpp, depth;
> > + u32 cpp;
> >
> > - drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
> > + cpp = drm_format_plane_cpp(mode_cmd->pixel_format, 0);
> >
> > /* need to align pitch with crtc limits */
> >
> > - mode_cmd->pitches[0] = amdgpu_align_pitch(adev, mode_cmd->width, bpp,
> > - fb_tiled) * ((bpp + 1) / 8);
> > + mode_cmd->pitches[0] = amdgpu_align_pitch(adev, mode_cmd->width, cpp,
> > + fb_tiled);
> >
> > height = ALIGN(mode_cmd->height, 8);
> > size = mode_cmd->pitches[0] * height;
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index
> > 88fbed2389c0..20a4e569b245 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> > @@ -704,7 +704,8 @@ int amdgpu_mode_dumb_create(struct drm_file
> > *file_priv,
> > uint32_t handle;
> > int r;
> >
> > - args->pitch = amdgpu_align_pitch(adev, args->width, args->bpp, 0) *
> > ((args->bpp + 1) / 8);
> > + args->pitch = amdgpu_align_pitch(adev,> args->width,
> > + DIV_ROUND_UP(args->bpp, 8), 0);
> >
> > args->size = (u64)args->pitch * args->height;
> > args->size = ALIGN(args->size, PAGE_SIZE);
--
Regards,
Laurent Pinchart
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