From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH 3/3] ARM: tegra: use section-sized static mappings for LPAE too Date: Tue, 26 Nov 2013 12:13:30 +0100 Message-ID: <20131126111330.GF27752@ulmo.nvidia.com> References: <1385419003-11348-1-git-send-email-swarren@wwwdotorg.org> <1385419003-11348-3-git-send-email-swarren@wwwdotorg.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="DO5DiztRLs659m5i" Return-path: Content-Disposition: inline In-Reply-To: <1385419003-11348-3-git-send-email-swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Stephen Warren Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Stephen Warren List-Id: linux-tegra@vger.kernel.org --DO5DiztRLs659m5i Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Nov 25, 2013 at 03:36:43PM -0700, Stephen Warren wrote: > From: Stephen Warren >=20 > The static mappings for Tegra's PPSB and APB regions were sized at 1MB > in order to allow mapping via sections in order to avoid burning RAM for > PTEs. On LPAE, sections are 2MB, so the static mappings need to be > larger in order to gain the same benefit. Set IO_{PPSB,APB}_SIZE to > SECTION_SIZE so this adjusts automatically. >=20 > While we're fiddling with iomap.h, compress IO_{IRAM,CPU}_VIRT together > to save virtual address space in the vmalloc region; these two regions > are mapped using PTEs. >=20 > Signed-off-by: Stephen Warren > --- > arch/arm/mach-tegra/iomap.h | 14 +++++++------- > 1 file changed, 7 insertions(+), 7 deletions(-) Reviewed-by: Thierry Reding --DO5DiztRLs659m5i Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJSlIJZAAoJEN0jrNd/PrOhUecP+waOOfLRYMQMaO8CnxuHHUdA QDyd0eYUYXVchjunZYOCiTEaMdq3Q8v2K1cCMDgCa02pouF4NTyBzybJY54fOwo7 1jUmPMfW9+YUzmNFBaLQiO4g8d71AjPd/YYdwulDEYrlAkNRH4cNujw3qrX2DW89 qrk+YBAQl+wplC/Mq1e+Cu1BjRpn8EkJ79KX56zaZ9HTZP9d3N2RGzXsS59r2QNA AmATAaoXj0WJ6tazVnUNYPJHJHVQZzuGi9JdEJldOvuwW1XU/PLwb9iYDo+cpMAk U/C23YnUjfflBoQzXBg/3x98LUaUbizT7n2h0Y1GW5veOAxDVrAUrqI5hwwINX7z xS6Ug8bAQ5HLk5T3+8lGOvHG1mvft9oFpktO4F7lN9h9KRLID7Qwgir+dhQwD+/E NeDLEQG+orqOHXyOJIRhJQFM2QB+sg7ieegYLr1Fuy/GwCPirtfVST5o1VzAna4G tTILePqk14i/HgI3l81a6PCionz+dhtriTGmuvWAmQJR7e2nAc169Z14QfJ29wih k10U5jx61uys0m1IeFCkIJ7TCLI0MP7V6v4qUh61/7wq3V+9e9QPPFupgmByBXkV SdgWoL+Bf6bo6Pm30hmWRBOpTwmHrlQWbO6tjeBOmH92Y4M5xn04ylsx9G4n+77X uD8q3rShNQv1RnaY5dsH =FRGC -----END PGP SIGNATURE----- --DO5DiztRLs659m5i--