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Thu, 15 Jul 2021 04:14:45 -0400 Received: from imap1.suse-dmz.suse.de (imap1.suse-dmz.suse.de [192.168.254.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id ED8EC1FDE5; Thu, 15 Jul 2021 08:11:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1626336711; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=HqXB8FwbR4mWpXDEB856YL88ZL4zpytqwWSg0MK4Er0=; b=LHKTszttqznz72msYhWWLK1zPzgNrcB+dS3HiqvBes9ppU+jpyPba5y2HYbEjULgBG3/AV epTkUDMw1E2/4Wntdv56xMOgytYwbaPcStEJBedjAPKj+N23oSreLjdkUg36UE/xwMYH7W Jz+o6kupe6rb2gHOG+dtK1n/Z7UCsHM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1626336711; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=HqXB8FwbR4mWpXDEB856YL88ZL4zpytqwWSg0MK4Er0=; b=I2b3kJ8MW05joOEVymY6wqDkHjgqqNfRErhlTZWfvH5QGu6TP9k69zTpGDWjYpr+mE/3on OLuKRBgrY5YGmbCg== Received: from imap1.suse-dmz.suse.de (imap1.suse-dmz.suse.de [192.168.254.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap1.suse-dmz.suse.de (Postfix) with ESMTPS id 459FD13AB3; Thu, 15 Jul 2021 08:11:51 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id b0TXDsft72C/agAAGKfGzw (envelope-from ); Thu, 15 Jul 2021 08:11:51 +0000 Subject: Re: [PATCH v3 0/2] allow simple{fb, drm} drivers to be used on non-x86 EFI platforms To: Javier Martinez Canillas , linux-kernel@vger.kernel.org Cc: linux-efi@vger.kernel.org, David Airlie , Catalin Marinas , dri-devel@lists.freedesktop.org, Atish Patra , linux-riscv@lists.infradead.org, Will Deacon , Ard Biesheuvel , x86@kernel.org, Russell King , Ingo Molnar , Peter Robinson , Borislav Petkov , Albert Ou , Hans de Goede , Paul Walmsley , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Palmer Dabbelt References: <20210625130947.1803678-1-javierm@redhat.com> From: Thomas Zimmermann Message-ID: <8dd26141-a09c-39e2-5174-4cad8d21c49c@suse.de> Date: Thu, 15 Jul 2021 10:11:50 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="iu6zN0OFsiQ8WAhMAHq5Yk61xpQgmcPTH" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --iu6zN0OFsiQ8WAhMAHq5Yk61xpQgmcPTH Content-Type: multipart/mixed; boundary="oERJS9i9SRexZTdXWB5psyaCpbIofUtkZ"; protected-headers="v1" From: Thomas Zimmermann To: Javier Martinez Canillas , linux-kernel@vger.kernel.org Cc: linux-efi@vger.kernel.org, David Airlie , Catalin Marinas , dri-devel@lists.freedesktop.org, Atish Patra , linux-riscv@lists.infradead.org, Will Deacon , Ard Biesheuvel , x86@kernel.org, Russell King , Ingo Molnar , Peter Robinson , Borislav Petkov , Albert Ou , Hans de Goede , Paul Walmsley , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Palmer Dabbelt Message-ID: <8dd26141-a09c-39e2-5174-4cad8d21c49c@suse.de> Subject: Re: [PATCH v3 0/2] allow simple{fb, drm} drivers to be used on non-x86 EFI platforms References: <20210625130947.1803678-1-javierm@redhat.com> In-Reply-To: --oERJS9i9SRexZTdXWB5psyaCpbIofUtkZ Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Hi Am 13.07.21 um 18:59 schrieb Javier Martinez Canillas: > On 6/25/21 3:09 PM, Javier Martinez Canillas wrote: >> The simplefb and simpledrm drivers match against a "simple-framebuffer= " >> device, but for aarch64 this is only registered when using Device Tree= s >> and there's a node with a "simple-framebuffer" compatible string. >> >> There is no code to register a "simple-framebuffer" platform device wh= en >> using EFI instead. In fact, the only platform device that's registered= in >> this case is an "efi-framebuffer", which means that the efifb driver i= s >> the only driver supported to have an early console with EFI on aarch64= =2E >> >> The x86 architecture platform has a Generic System Framebuffers (sysfb= ) >> support, that register a system frambuffer platform device. It either >> registers a "simple-framebuffer" for the simple{fb,drm} drivers or leg= acy >> VGA/EFI FB devices for the vgafb/efifb drivers. >> >> The sysfb is generic enough to be reused by other architectures and ca= n be >> moved out of the arch/x86 directory to drivers/firmware, allowing the = EFI >> logic used by non-x86 architectures to be folded into sysfb as well. >> >=20 > Any more comments on this series? It would be nice for this to land so = the > simpledrm driver could be used on aarch64 EFI systems as well. >=20 > The patches have already been acked by x86 and DRM folks. Time to get this merged, I'd say. People are asking for these patches=20 already. Best regards Thomas >=20 > Best regards, >=20 --=20 Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 N=C3=BCrnberg, Germany (HRB 36809, AG N=C3=BCrnberg) Gesch=C3=A4ftsf=C3=BChrer: Felix Imend=C3=B6rffer --oERJS9i9SRexZTdXWB5psyaCpbIofUtkZ-- --iu6zN0OFsiQ8WAhMAHq5Yk61xpQgmcPTH Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsF5BAABCAAjFiEExndm/fpuMUdwYFFolh/E3EQov+AFAmDv7cYFAwAAAAAACgkQlh/E3EQov+B8 UxAAy4fbawz3l/323R44323T5tao9iLYrR1CirJHLwuir/wLpyBCiKntH12jR0bEROIu/rUG/KrQ gtMsLgxRwNOIF2VTrz6I1cTS5/J83Q5NApEuFHJE1lXT24JV9LFtZTnDjCUIrrY5Yc1X5WIkC8Yi KnFrEakP86onMRRc51y/B7RuGGHg+7k95LTGtbrsry4Yeu//SQyCnffr8jR3uWgF8ft3BKc51O19 7I2KkhlafdRS0R6jxhcuemVGgTxo3NfAe439lw2HMI+7PagXjf+ZirgSt34QsNVO2JuKPT3jymW3 m0u80hkUAv8kPc7gHL6CNN1eSKgR3s6yydi5uzlYQQR3I98v2OErLfLcBRwwjVqFpYv4lbDJqqBR 5tCt/78LRkoa/pBN6u7E0MSWd5JyBNJxcOGvLmMWJ5TsnCK3G0i0S78YUaBXOfKcYiSvO2i1xnrs uzyvAJbq6Il71SL2clOXmmgstbGfBqJMewei4vjATq/O+k2SzkEZMuiksq7YyJxXU79LkbTo6PW8 fMWVWy1pmZqfQgwKfE2BPjTzu1UwAPHVBN8vQOgu2M7CcQ3MmrjnWLYem3tDloyRAzrHnSOkZ5MY ZbkBlTsBqKJdTO4dA6dyJt15i30RV2k6DohnF5DCXepAF3fbWjv+Rm30/Acvs43UgtecBvWu68rh ofQ= =fW1p -----END PGP SIGNATURE----- --iu6zN0OFsiQ8WAhMAHq5Yk61xpQgmcPTH--