linux

Commit Graph

Author	SHA1	Message	Date
Dan Carpenter	65c4777de5	drm/vc4: copy_to_user() returns the number of bytes remaining The copy_to/from_user() functions return the number of bytes remaining to be copied. We want to return error codes here. Also it's a bad idea to print an error message if a copy from user fails because users can use that to spam /var/log/messages which is annoying so I removed those. Fixes: `214613656b` ('drm/vc4: Add an interface for capturing the GPU state after a hang.') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Eric Anholt <eric@anholt.net>	2015-12-17 11:40:11 -08:00
Eric Anholt	214613656b	drm/vc4: Add an interface for capturing the GPU state after a hang. This can be parsed with vc4-gpu-tools tools for trying to figure out what was going on. v2: Use __u32-style types. Signed-off-by: Eric Anholt <eric@anholt.net>	2015-12-07 20:49:49 -08:00
Eric Anholt	b501bacc60	drm/vc4: Add support for async pageflips. An async pageflip stores the modeset to be done and executes it once the BOs are ready to be displayed. This gets us about 3x performance in full screen rendering with pageflipping. Signed-off-by: Eric Anholt <eric@anholt.net>	2015-12-07 20:10:03 -08:00
Eric Anholt	d5b1a78a77	drm/vc4: Add support for drawing 3D frames. The user submission is basically a pointer to a command list and a pointer to uniforms. We copy those in to the kernel, validate and relocate them, and store the result in a GPU BO which we queue for execution. v2: Drop support for NV shader recs (not necessary for GL), simplify vc4_use_bo(), improve bin flush/semaphore checks, use __u32 style types. Signed-off-by: Eric Anholt <eric@anholt.net>	2015-12-07 20:05:10 -08:00

4 Commits