From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <46010B20.4050807@domain.hid> Date: Wed, 21 Mar 2007 11:38:24 +0100 From: Jan Kiszka MIME-Version: 1.0 Subject: Re: [Xenomai-core] Xenomai support for ARM926EJ References: <17914.63535.18893.207257@domain.hid> <17920.13832.789072.876398@domain.hid> <17920.60301.400005.135175@domain.hid> <4600F735.2030205@domain.hid> <4601059E.6040903@domain.hid> In-Reply-To: <4601059E.6040903@domain.hid> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig5DAEBC7DAA43C54BC892277E" Sender: jan.kiszka@domain.hid List-Id: "Xenomai life and development \(bug reports, patches, discussions\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gilles Chanteperdrix Cc: xenomai-core This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig5DAEBC7DAA43C54BC892277E Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Gilles Chanteperdrix wrote: > Jan Kiszka wrote: >> I think implementing coloured caches (with reservations for RT >> processes) could be an option as well. Once RT context switches no >> longer require full cache flushes, those for non-RT processes could be= >> made interruptible. But all this would require heavy Linux hacking, I'= m >> afraid. >=20 > Using TCM removes any cache effect and does not require Linux hacking. >=20 How is TCM managed? Can you push parts of I-pipe/Xenomai or even some applications into it? Or does this only help here if you have a few ops of an interrupt handler to be saved from the (RT-wise) lousy caching architecture of ARM? [I threw coloured caches into the ring also to trigger some discussion on a long-term solution for MMU-based Xenomai on ARM.] Jan --------------enig5DAEBC7DAA43C54BC892277E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGAQsgniDOoMHTA+kRAsF+AKCCQIoD5Dq1SdrUCkYyva2MH8PY5wCfeGhs gMOgvpf0KD4zfKD6osrH5Ic= =pgGy -----END PGP SIGNATURE----- --------------enig5DAEBC7DAA43C54BC892277E--