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[2603:6081:7b00:6400:39a6:276d:283b:ce62]) by smtp.gmail.com with ESMTPSA id m124-20020a375882000000b0073b8745fd39sm1927310qkb.110.2023.03.17.09.43.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Mar 2023 09:43:18 -0700 (PDT) Date: Fri, 17 Mar 2023 12:43:16 -0400 From: Tom Rini To: Mark Kettenis Cc: Janne Grunau , u-boot@lists.denx.de Subject: Re: [PATCH] apple_m1_defconfig: Bump CONFIG_LMB_MAX_REGIONS to 64 Message-ID: <20230317164316.GZ54321@bill-the-cat> References: <20230313-apple_m1_defconfig_lmb_max_regions-v1-1-d2eac7bcfd20@jannau.net> <87v8j4bu4b.fsf@bloch.sibelius.xs4all.nl> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="1xgN/QrJiKkXsZJ5" Content-Disposition: inline In-Reply-To: <87v8j4bu4b.fsf@bloch.sibelius.xs4all.nl> X-Clacks-Overhead: GNU Terry Pratchett X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean --1xgN/QrJiKkXsZJ5 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Mar 13, 2023 at 03:31:32PM +0100, Mark Kettenis wrote: > > From: Janne Grunau > > Date: Mon, 13 Mar 2023 14:54:32 +0100 > >=20 > > Apple silicon SoCs have numerous embedded co-processors with pre-loaded > > firmware. The co-processors text and data sections need to be mapped via > > DART iommus controlled by the main processor. Those sections are > > exported as reserved-memory. Bump CONFIG_LMB_MAX_REGIONS from 8 to 64 to > > deal with the large amount of reserved-memory regions. >=20 > We recently bumped the default for CONFIG_LMB_MAX_REGIONS from 8 to > 16, but 64 would be a safer value for this platform as there are more > co-processor drivers in the pipeline that may add reserved-memory > regions. These machines have plenty of memory. >=20 > > Signed-off-by: Janne Grunau >=20 > Reviewed-by: Mark Kettenis Does this mean it's a fix we need for v2023.04, or v2023.07 is OK? --=20 Tom --1xgN/QrJiKkXsZJ5 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmQUmJ0ACgkQFHw5/5Y0 tyzhKAwAjgs0kueY+p55/pkks9i6eGOCVgfmWGjM7Val+YVlcuG1Pgs0PUWK1r6f jxgalDAVEp5qSqkCWBMF4WQqT5cS1Y4wka9SWkNKdRn+VsQJgJ/J0wJjkzRkhYrC 2qoyCOe5YjOiGuaPDYk7dZ7vLQUQNbmwEFw+3PWziI1bCElhg+KcB8JooOoADdZp 0o5Lnb4gAMlVsncx677qUFcd7sDdy+cF9h/Rfauq0laSvfOuEcycRC2I7Fdrhn0t 6OdjyPR+Dufl9RJ0Whw77i+YMHRX0vHkVJmqIxwhNHAKKpriQuE04/rh7Scpqtpf /adpHjoi3tmoUKekrWCEZFLFv7iHUmjz4PT+SO7mddF5YA0dhRGk3y+lSrJLm4+t jpphWp1VAw3O4QOqd8Yzgh/jl+rUc4Zb2CICzHNHivYsLs+a84XbajXGoS3KnwHS 5uh9IxBIdz7mp7yERm88HnQdVbxJ4Ox5B5NUraRnjRVuRemh3zrYkm93BoietNOO Xu0GGjeo =tiw4 -----END PGP SIGNATURE----- --1xgN/QrJiKkXsZJ5--