Re: [RFC 0/4] Add Format Modifiers for NVIDIA Blackwell chipsets

2025-07-17 Thread Faith Ekstrand
On Wed, Jul 16, 2025 at 6:36 PM James Jones wrote: > On 7/4/25 07:45, Faith Ekstrand wrote: > > On Thu, Jul 3, 2025 at 6:34 PM James Jones > > wrote: > > > > The layout of bits within the individual tiles (referred to as > > sectors in the DRM_FORMAT_MOD_NVIDIA

Re: [RFC 0/4] Add Format Modifiers for NVIDIA Blackwell chipsets

2025-07-16 Thread James Jones
On 7/4/25 07:45, Faith Ekstrand wrote: On Thu, Jul 3, 2025 at 6:34 PM James Jones > wrote: The layout of bits within the individual tiles (referred to as sectors in the DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D() macro) changed for some formats starting in Blac

Re: [RFC 0/4] Add Format Modifiers for NVIDIA Blackwell chipsets

2025-07-04 Thread Faith Ekstrand
On Thu, Jul 3, 2025 at 6:34 PM James Jones wrote: > The layout of bits within the individual tiles (referred to as > sectors in the DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D() macro) > changed for some formats starting in Blackwell 2 GPUs. New format > modifiers are needed to denote the difference an

[RFC 0/4] Add Format Modifiers for NVIDIA Blackwell chipsets

2025-07-03 Thread James Jones
The layout of bits within the individual tiles (referred to as sectors in the DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D() macro) changed for some formats starting in Blackwell 2 GPUs. New format modifiers are needed to denote the difference and prevent direct sharing of these incompatible buffers with