Re: [PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support

2022-02-18 Thread Jordan Justen
Ramalingam C writes: > On 2022-02-18 at 18:06:00 +, Robert Beckett wrote: >> >> If desired, we can make the wording clearer, maybe something like: >> >> "To keep things simple for userland, we mandate that any GTT mappings >> must be aligned to 2MB. The kernel will internally pad them out t

Re: [PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support

2022-02-18 Thread Ramalingam C
On 2022-02-18 at 18:06:00 +, Robert Beckett wrote: > > > On 18/02/2022 13:47, Ramalingam C wrote: > > On 2022-02-17 at 20:57:35 -0800, Jordan Justen wrote: > > > Robert Beckett writes: > > > > > > > From: Matthew Auld > > > > > > > > On discrete platforms like DG2, we need to support a mi

Re: [PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support

2022-02-18 Thread Robert Beckett
On 18/02/2022 13:47, Ramalingam C wrote: On 2022-02-17 at 20:57:35 -0800, Jordan Justen wrote: Robert Beckett writes: From: Matthew Auld On discrete platforms like DG2, we need to support a minimum page size of 64K when dealing with device local-memory. This is quite tricky for various r

Re: [PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support

2022-02-18 Thread Ramalingam C
On 2022-02-17 at 20:57:35 -0800, Jordan Justen wrote: > Robert Beckett writes: > > > From: Matthew Auld > > > > On discrete platforms like DG2, we need to support a minimum page size > > of 64K when dealing with device local-memory. This is quite tricky for > > various reasons, so try to documen

Re: [PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support

2022-02-17 Thread Jordan Justen
Robert Beckett writes: > From: Matthew Auld > > On discrete platforms like DG2, we need to support a minimum page size > of 64K when dealing with device local-memory. This is quite tricky for > various reasons, so try to document the new implicit uapi for this. > > v3: fix typos and less emphasi

[PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support

2022-02-08 Thread Robert Beckett
From: Matthew Auld On discrete platforms like DG2, we need to support a minimum page size of 64K when dealing with device local-memory. This is quite tricky for various reasons, so try to document the new implicit uapi for this. v3: fix typos and less emphasis v2: Fixed suggestions on formatting