On 15.12.2015 06:12, Simon Horman wrote:
On Sat, Dec 12, 2015 at 08:07:51AM +0900, Simon Horman wrote:
On Fri, Dec 04, 2015 at 02:38:52PM +0100, Dirk Behme wrote:
From: Gaku Inami <gaku.inami.xw@xxxxxxxxxxxxxx>
Add Cortex-A57 CPU cores to r8a7795 SoC for a total of 4 x Cortex-A57.
Signed-off-by: Gaku Inami <gaku.inami.xw@xxxxxxxxxxxxxx>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
Sigend-off-by: Dirk Behme <dirk.behme@xxxxxxxxx>
Thanks, I have queued this up for v4.5.
I meant to test this earlier but somehow it slopped my mind.
With this patch applied I still only see one CPU brought up
whereas I was expecting 4. Are more patches needed in order to
get more CPUs operating?
Hmm, I don't think so (?).
I tested this with
https://github.com/dirkbehme/linux-renesas-rcar-gen3/commits/dirk/gen3-latest-update
and got (including the A53 patch)
...
ASID allocator initialised with 65536 entries
Detected PIPT I-cache on CPU1
CPU1: Booted secondary processor [411fd073]
Detected PIPT I-cache on CPU2
CPU2: Booted secondary processor [411fd073]
Detected PIPT I-cache on CPU3
CPU3: Booted secondary processor [411fd073]
Detected VIPT I-cache on CPU4
CPU features: enabling workaround for ARM erratum 845719
CPU4: Booted secondary processor [410fd034]
Detected VIPT I-cache on CPU5
CPU5: Booted secondary processor [410fd034]
Detected VIPT I-cache on CPU6
CPU6: Booted secondary processor [410fd034]
Detected VIPT I-cache on CPU7
CPU7: Booted secondary processor [410fd034]
Brought up 8 CPUs
SMP: Total of 8 processors activated.
CPU: All CPU(s) started at EL1
...
This is based on last weeks renesas-drivers-2015-12-08-v4.4-rc4 and
besides the patches for SDHI/eMMC I don't think it contains anything
additional regarding the number of CPU cores.
Best regards
Dirk
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