Re: [PATCH v3 06/11] PCI: plda: Add event interrupt codes and IRQ domain ops

From: Conor Dooley <conor@kernel.org>
To: Minda Chen <minda.chen@starfivetech.com>
Cc: "Conor Dooley" <conor.dooley@microchip.com>,
	"Daire McNamara" <daire.mcnamara@microchip.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Emil Renner Berthing" <emil.renner.berthing@canonical.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org, linux-pci@vger.kernel.org,
	"Pali Rohár" <pali@kernel.org>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	"Mason Huo" <mason.huo@starfivetech.com>,
	"Leyfoon Tan" <leyfoon.tan@starfivetech.com>,
	"Kevin Xie" <kevin.xie@starfivetech.com>
Subject: Re: [PATCH v3 06/11] PCI: plda: Add event interrupt codes and IRQ domain ops
Date: Tue, 15 Aug 2023 14:11:09 +0100	[thread overview]
Message-ID: <20230815-five-comment-cff5fb01909f@spud> (raw)
In-Reply-To: <f983f3cc-ebb5-18fb-891a-adc073742bb9@starfivetech.com>

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On Tue, Aug 15, 2023 at 06:12:07PM +0800, Minda Chen wrote:
> 
> 
> On 2023/8/14 21:52, Conor Dooley wrote:
> > On Mon, Aug 14, 2023 at 04:20:11PM +0800, Minda Chen wrote:
> >> For PolarFire implements non-PLDA local interrupt events, most of
> >> event interrupt process codes can not be re-used. PLDA implements
> >> new codes and IRQ domain ops like PolarFire.
> >> 
> >> plda_handle_event adds a new IRQ num to event num mapping codes for
> >> PLDA local event except DMA engine interrupt events. The DMA engine
> >> interrupt events are implemented by vendors.
> >> 
> >> Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
> >> ---
> >>  .../pci/controller/plda/pcie-microchip-host.c | 29 +++---
> >>  drivers/pci/controller/plda/pcie-plda-host.c  | 99 +++++++++++++++++++
> >>  drivers/pci/controller/plda/pcie-plda.h       | 19 ++++
> >>  3 files changed, 133 insertions(+), 14 deletions(-)
> >> 
> >> diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
> >> index c28840315019..b42f1aac3ec3 100644
> >> --- a/drivers/pci/controller/plda/pcie-microchip-host.c
> >> +++ b/drivers/pci/controller/plda/pcie-microchip-host.c
> >> @@ -96,20 +96,21 @@
> >>  #define EVENT_LOCAL_DMA_END_ENGINE_1		12
> >>  #define EVENT_LOCAL_DMA_ERROR_ENGINE_0		13
> >>  #define EVENT_LOCAL_DMA_ERROR_ENGINE_1		14
> >> -#define EVENT_LOCAL_A_ATR_EVT_POST_ERR		15
> >> -#define EVENT_LOCAL_A_ATR_EVT_FETCH_ERR		16
> >> -#define EVENT_LOCAL_A_ATR_EVT_DISCARD_ERR	17
> >> -#define EVENT_LOCAL_A_ATR_EVT_DOORBELL		18
> >> -#define EVENT_LOCAL_P_ATR_EVT_POST_ERR		19
> >> -#define EVENT_LOCAL_P_ATR_EVT_FETCH_ERR		20
> >> -#define EVENT_LOCAL_P_ATR_EVT_DISCARD_ERR	21
> >> -#define EVENT_LOCAL_P_ATR_EVT_DOORBELL		22
> >> -#define EVENT_LOCAL_PM_MSI_INT_INTX		23
> >> -#define EVENT_LOCAL_PM_MSI_INT_MSI		24
> >> -#define EVENT_LOCAL_PM_MSI_INT_AER_EVT		25
> >> -#define EVENT_LOCAL_PM_MSI_INT_EVENTS		26
> >> -#define EVENT_LOCAL_PM_MSI_INT_SYS_ERR		27
> >> -#define NUM_EVENTS				28
> >> +#define NUM_MC_EVENTS				15
> >> +#define EVENT_LOCAL_A_ATR_EVT_POST_ERR		(NUM_MC_EVENTS + EVENT_A_ATR_EVT_POST_ERR)
> >> +#define EVENT_LOCAL_A_ATR_EVT_FETCH_ERR		(NUM_MC_EVENTS + EVENT_A_ATR_EVT_FETCH_ERR)
> >> +#define EVENT_LOCAL_A_ATR_EVT_DISCARD_ERR	(NUM_MC_EVENTS + EVENT_A_ATR_EVT_DISCARD_ERR)
> >> +#define EVENT_LOCAL_A_ATR_EVT_DOORBELL		(NUM_MC_EVENTS + EVENT_A_ATR_EVT_DOORBELL)
> >> +#define EVENT_LOCAL_P_ATR_EVT_POST_ERR		(NUM_MC_EVENTS + EVENT_P_ATR_EVT_POST_ERR)
> >> +#define EVENT_LOCAL_P_ATR_EVT_FETCH_ERR		(NUM_MC_EVENTS + EVENT_P_ATR_EVT_FETCH_ERR)
> >> +#define EVENT_LOCAL_P_ATR_EVT_DISCARD_ERR	(NUM_MC_EVENTS + EVENT_P_ATR_EVT_DISCARD_ERR)
> >> +#define EVENT_LOCAL_P_ATR_EVT_DOORBELL		(NUM_MC_EVENTS + EVENT_P_ATR_EVT_DOORBELL)
> >> +#define EVENT_LOCAL_PM_MSI_INT_INTX		(NUM_MC_EVENTS + EVENT_PM_MSI_INT_INTX)
> >> +#define EVENT_LOCAL_PM_MSI_INT_MSI		(NUM_MC_EVENTS + EVENT_PM_MSI_INT_MSI)
> >> +#define EVENT_LOCAL_PM_MSI_INT_AER_EVT		(NUM_MC_EVENTS + EVENT_PM_MSI_INT_AER_EVT)
> >> +#define EVENT_LOCAL_PM_MSI_INT_EVENTS		(NUM_MC_EVENTS + EVENT_PM_MSI_INT_EVENTS)
> >> +#define EVENT_LOCAL_PM_MSI_INT_SYS_ERR		(NUM_MC_EVENTS + EVENT_PM_MSI_INT_SYS_ERR)
> >> +#define NUM_EVENTS				(NUM_MC_EVENTS + NUM_PLDA_EVENTS)
> > 
> > Is this change not in the wrong patch & should be changed alongside the
> > movement of defines? 
> EVENT_xxx is new added one for PLDA codes and The event num start from 0. This add association to PLDA events.
> Maybe this can be moved to patch8 or a new patch.

It feels like it should be in patch 3 to me.

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