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From: hch@infradead.org (Christoph Hellwig)
To: linux-riscv@lists.infradead.org
Subject: [RFC PATCH 4/5] irqchip: RISC-V Local Interrupt Controller Driver
Date: Mon, 10 Sep 2018 06:35:49 -0700	[thread overview]
Message-ID: <20180910133549.GA15730@infradead.org> (raw)
In-Reply-To: <CAAhSdy2B3RTYKTsm+HrJfsC3dP3vZyT0VYi80h3pDVUxDCONwA@mail.gmail.com>

On Thu, Sep 06, 2018 at 05:23:07PM +0530, Anup Patel wrote:
> > And we reject that driver approach for good reason and are now
> > doing the architectualy low-level irq handling in common code
> > without any need whatsover to duplicate information in the
> > privileged spec in DT.
> 
> In other words, the whole idea of separate RISCV local interrupt
> controller driver was dropped due duplicate information in privilege
> spec DT ??

No.  We came to the conflusion that a few registers on a cpu
that allow enabling/disabling local vs external vs timer intterupts
aren't worth writing an irqchip (or DT entries) for.

  reply	other threads:[~2018-09-10 13:35 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-04 12:45 [RFC PATCH 0/5] New RISC-V Local Interrupt Controller Driver Anup Patel
2018-09-04 12:45 ` [RFC PATCH 1/5] RISC-V: Make IPI triggering flexible Anup Patel
2018-09-04 18:50   ` Christoph Hellwig
2018-09-05  4:36     ` Anup Patel
2018-09-05 18:56       ` Christoph Hellwig
2018-09-06  9:45     ` Palmer Dabbelt
2018-09-06 10:45       ` Anup Patel
2018-09-10 13:34         ` Christoph Hellwig
2018-09-11  3:37           ` Anup Patel
2018-09-29  1:45           ` Palmer Dabbelt
2018-09-29  1:45             ` Palmer Dabbelt
2018-09-29  7:06             ` Anup Patel
2018-09-29  7:06               ` Anup Patel
2018-09-04 12:45 ` [RFC PATCH 2/5] RISC-V: No need to pass scause as arg to do_IRQ() Anup Patel
2018-09-04 18:50   ` Christoph Hellwig
2018-09-04 12:45 ` [RFC PATCH 3/5] RISC-V: Select useful GENERIC_IRQ kconfig options Anup Patel
2018-09-04 18:56   ` Christoph Hellwig
2018-09-05  4:52     ` Anup Patel
2018-09-05 18:57       ` Christoph Hellwig
2018-09-04 12:45 ` [RFC PATCH 4/5] irqchip: RISC-V Local Interrupt Controller Driver Anup Patel
2018-09-04 18:57   ` Christoph Hellwig
2018-09-05  6:09     ` Anup Patel
2018-09-05 18:58       ` Christoph Hellwig
2018-09-06 11:53         ` Anup Patel
2018-09-10 13:35           ` Christoph Hellwig [this message]
2018-09-04 12:45 ` [RFC PATCH 5/5] clocksource: riscv_timer: Make timer interrupt as a per-CPU interrupt Anup Patel
2018-09-04 18:58   ` Christoph Hellwig
2018-09-05  8:21     ` Anup Patel

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