3-4 Reviewed-by: Jordan Justen <[email protected]>
On 2018-05-27 21:35:43, Kenneth Graunke wrote: > This isn't strictly necessary, but anyone running Cannonlake will > already have Kernel 4.5 or later, so there's no reason to support > the relocation model on Gen10+. > > This will let us avoid dealing with them for new features. > > Reviewed-by: Scott D Phillips <[email protected]> > --- > src/mesa/drivers/dri/i965/brw_bufmgr.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/src/mesa/drivers/dri/i965/brw_bufmgr.c > b/src/mesa/drivers/dri/i965/brw_bufmgr.c > index 80bfc7c75db..2fb0a4453ff 100644 > --- a/src/mesa/drivers/dri/i965/brw_bufmgr.c > +++ b/src/mesa/drivers/dri/i965/brw_bufmgr.c > @@ -1738,6 +1738,16 @@ brw_bufmgr_init(struct gen_device_info *devinfo, int > fd) > 4096, _4GB); > util_vma_heap_init(&bufmgr->vma_allocator[BRW_MEMZONE_OTHER], > 1 * _4GB, gtt_size - 1 * _4GB); > + } else if (devinfo->gen >= 10) { > + /* Softpin landed in 4.5, but GVT used an aliasing PPGTT until > + * kernel commit 6b3816d69628becb7ff35978aa0751798b4a940a in > + * 4.14. Gen10+ GVT hasn't landed yet, so it's not actually a > + * problem - but extending this requirement back to earlier gens > + * might actually mean requiring 4.14. > + */ > + fprintf(stderr, "i965 requires softpin (Kernel 4.5) on Gen10+."); > + free(bufmgr); > + return NULL; > } > } > > -- > 2.17.0 > > _______________________________________________ > mesa-dev mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
