On Fri, 2017-09-29 at 17:10 +0100, Matthew Auld wrote: > Enable transparent-huge-pages through gemfs by mounting with > huge=within_size. > > v2: sprinkle within_size comment > > Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_gemfs.c | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_gemfs.c b/drivers/gpu/drm/i915/i915_gemfs.c > index 168d0bd98f60..b1b4d13d8f97 100644 > --- a/drivers/gpu/drm/i915/i915_gemfs.c > +++ b/drivers/gpu/drm/i915/i915_gemfs.c > @@ -24,6 +24,7 @@ > > #include <linux/fs.h> > #include <linux/mount.h> > +#include <linux/pagemap.h> > > #include "i915_drv.h" > #include "i915_gemfs.h" > @@ -41,6 +42,26 @@ int i915_gemfs_init(struct drm_i915_private *i915) > if (IS_ERR(gemfs)) > return PTR_ERR(gemfs); > > + /* > + * Enable huge-pages for objects that are at least HPAGE_PMD_SIZE, most > + * likely 2M. Note that within_size may overallocate huge-pages, if say > + * we allocate an object of size 2M + 4K, but under memory pressure Maybe append after "2M + 4K" "we may get 2M + 2M", to complete the sentence. Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Regards, Joonas -- Joonas Lahtinen Open Source Technology Center Intel Corporation _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
