From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Alexey Brodkin" <Alexey.Brodkin@synopsys.com>
Subject: Re: [PATCH v2 3/4] ARC: add support for DSP-enabled userspace applications
Date: Wed, 11 Mar 2020 19:13:28 +0000 [thread overview]
Message-ID: <6f7916f4-9ff9-e947-c62e-30000a4bcc84@synopsys.com> (raw)
In-Reply-To: <20200305200252.14278-4-Eugeniy.Paltsev@synopsys.com>
On 3/5/20 12:02 PM, Eugeniy Paltsev wrote:
> To be able to run DSP-enabled userspace applications we need to
> save and restore following DSP-related registers:
> At IRQ/exception entry/exit:
> * DSP_CTRL (save it and reset to value suitable for kernel)
> * ACC0_LO, ACC0_HI (we already save them as r58, r59 pair)
> At context switch:
> * ACC0_GLO, ACC0_GHI
> * DSP_BFLY0, DSP_FFT_CTRL
>
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
next prev parent reply other threads:[~2020-03-11 19:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-05 20:02 [PATCH v2 0/4] ARC: handle DSP presence in HW Eugeniy Paltsev
2020-03-05 20:02 ` [PATCH v2 1/4] ARC: add helpers to sanitize config options Eugeniy Paltsev
2020-03-06 22:55 ` Vineet Gupta
2020-03-05 20:02 ` [PATCH v2 2/4] ARC: handle DSP presence in HW Eugeniy Paltsev
2020-03-07 0:12 ` Vineet Gupta
2020-03-10 12:18 ` Eugeniy Paltsev
2020-03-10 12:19 ` Eugeniy Paltsev
2020-03-05 20:02 ` [PATCH v2 3/4] ARC: add support for DSP-enabled userspace applications Eugeniy Paltsev
2020-03-11 19:13 ` Vineet Gupta [this message]
2020-03-05 20:02 ` [PATCH v2 4/4] ARC: allow userspace DSP applications to use AGU extensions Eugeniy Paltsev
2020-03-11 19:15 ` Vineet Gupta
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