From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric@anholt.net (Eric Anholt) Date: Wed, 18 Apr 2018 09:45:15 -0700 Subject: [PATCH 2/2 v3] drm/pl111: Enable device-specific assigned memory In-Reply-To: <20180418085242.19525-2-linus.walleij@linaro.org> References: <20180418085242.19525-1-linus.walleij@linaro.org> <20180418085242.19525-2-linus.walleij@linaro.org> Message-ID: <87po2wlazo.fsf@anholt.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Linus Walleij writes: > The Versatile Express has 8 MB of dedicated video RAM (VRAM) > on the motherboard, which is what we should be using for the > PL111 if available. On this platform, the memory backplane > is constructed so that only this memory will work properly > with the CLCD on the motherboard, using any other memory > area just gives random snow on the display. > > The CA9 Versatile Express also has a PL111 instance on its > core tile that can address all memory, and this does not > have the restriction. Reviewed-by: Eric Anholt -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 832 bytes Desc: not available URL: From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Anholt Subject: Re: [PATCH 2/2 v3] drm/pl111: Enable device-specific assigned memory Date: Wed, 18 Apr 2018 09:45:15 -0700 Message-ID: <87po2wlazo.fsf@anholt.net> References: <20180418085242.19525-1-linus.walleij@linaro.org> <20180418085242.19525-2-linus.walleij@linaro.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0043250053==" Return-path: Received: from anholt.net (anholt.net [50.246.234.109]) by gabe.freedesktop.org (Postfix) with ESMTP id 38ECC6E596 for ; Wed, 18 Apr 2018 16:45:19 +0000 (UTC) In-Reply-To: <20180418085242.19525-2-linus.walleij@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Linus Walleij , Daniel Vetter , Jani Nikula , Sean Paul , Liviu Dudau Cc: Mali DP Maintainers , linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0043250053== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain Linus Walleij writes: > The Versatile Express has 8 MB of dedicated video RAM (VRAM) > on the motherboard, which is what we should be using for the > PL111 if available. On this platform, the memory backplane > is constructed so that only this memory will work properly > with the CLCD on the motherboard, using any other memory > area just gives random snow on the display. > > The CA9 Versatile Express also has a PL111 instance on its > core tile that can address all memory, and this does not > have the restriction. Reviewed-by: Eric Anholt --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE/JuuFDWp9/ZkuCBXtdYpNtH8nugFAlrXdhsACgkQtdYpNtH8 nui86g/9HaXXQDMAbjICm9RSzFremwNGzjslTsubi9erf2A2BhK+tU04zdPaARy8 fZWoSaMH520kUlQQYz6AoY1FSdMVFJ1NUeA1YCmJ+lnPaBFxZV1tGjPlff4zLTZI gs3LT27NjkWDAxP5f7uep41+Pg7ji6vENQF5xv552UvX0CnXtJgYVJK/oz/XBK9m zKgGUC4/LVx3Ut92m3fEM2SsErFgD5wp5plzO4n4kDA9eCZ+lR4kGWwRH6DtUeW0 +g1Ggq8nI8J4cpB2j1MBr1gLGyOLfVbHXWsxNXGp8LQGipF+UBFM3dqtzmU/sL+j fYlt52fzIYVVkPJFbyDAseN+HRnr/SzSfquZL2iU66XtjCphIGzUutZUiDesoJEl +0i3Jb/Hs4t7LTNhktxrRGg6uPh4SMxMErmFpbFj5lDNmkqxPGj+Fey7OwascFEY kudCSeNQs3z55meYz26vrGN7pKpAqDI8rvntDL6GmuASPvp8+5N3yE/DEnqVos7r stlZpARp6/2y7Ich3NyFZTV21QZwl7Xc8FR8xj8+7BpNDi1hqheL5N3wveudSUFC W4KbwK1SXo16x002Qw4fLjkvuU7i3KxOu19dKHB8seMRVV7BRSiPTUiWhu0AdKMG FMXL0gSJuoDzSzGQWJ8o0+PmUHzjT5mThpvgZVpA/KlimTQrkP8= =hWrk -----END PGP SIGNATURE----- --=-=-=-- --===============0043250053== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0043250053==--