Re: [PATCH v3 23/25] drm/xe: Compute dumb-buffer sizes with drm_mode_size_dumb()

On 18/02/2025 14:23, Thomas Zimmermann wrote: Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and buffer size. Align the pitch to a multiple of 8. Align the buffer size according to hardware requirements. Xe's internal calculation allowed for 64-bit wide buffer sizes, but the ioc

Re: [PATCH v3 02/25] drm/dumb-buffers: Provide helper to set pitch and size

Hi, On 18/02/2025 16:23, Thomas Zimmermann wrote: Add drm_modes_size_dumb(), a helper to calculate the dumb-buffer scanline pitch and allocation size. Implementations of struct drm_driver.dumb_create can call the new helper for their size computations. There is currently quite a bit of code dup

Re: [PATCH v3 02/25] drm/dumb-buffers: Provide helper to set pitch and size

Hi, On 20/02/2025 12:05, Thomas Zimmermann wrote: Hi Am 20.02.25 um 10:18 schrieb Tomi Valkeinen: [...] + * Color modes of 10, 12, 15, 30 and 64 are only supported for use by + * legacy user space. Please don't use them in new code. Other modes + * are not support. + * + * Do not attempt to al

Re: [PATCH v2 21/25] drm/virtio: Compute dumb-buffer sizes with drm_mode_size_dumb()

On 1/9/25 17:57, Thomas Zimmermann wrote: > Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and > buffer size. Align the pitch to a multiple of 4. > > Signed-off-by: Thomas Zimmermann > Cc: David Airlie > Cc: Gerd Hoffmann > Cc: Gurchetan Singh > Cc: Chia-I Wu > --- > drivers

Re: [PATCH v3 02/25] drm/dumb-buffers: Provide helper to set pitch and size

Hi Am 20.02.25 um 10:18 schrieb Tomi Valkeinen: [...] + * Color modes of 10, 12, 15, 30 and 64 are only supported for use by + * legacy user space. Please don't use them in new code. Other modes + * are not support. + * + * Do not attempt to allocate anything but linear framebuffer memory + * wi