On Fri, Jan 18, 2019 at 07:11:06PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> v2: Leave the stride alone for buffers that look to be for the cursor
> ---
> drivers/gpu/drm/i915/i915_gem.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 1e7c95d0fea1..b4b34519af80 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -745,7 +745,12 @@ i915_gem_dumb_create(struct drm_file *file,
> struct drm_mode_create_dumb *args)
> {
> /* have to work out size/pitch and return them */
> - args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 64);
> + if (args->bpp == 32 && (args->width == 64 ||
> + args->width == 128 ||
> + args->width == 256))
> + args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 64);
> + else
> + args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 4096);
Shouldn't we convert this into a non-hack and just do it anytime the pitch
is too wide for the display to handle?
Or am I missing something somewhere? -modesetting et all will dtrt
because tiling, but this should help with boot splashes and stuff like
that (but those tend to not do side-by-side, so maybe that's why the get
away with it).
-Daniel
> args->size = args->pitch * args->height;
> return i915_gem_create(file, to_i915(dev),
> args->size, &args->handle);
> --
> 2.19.2
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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