linux-kernel - Re: [PATCH v3 04/11] PCI: microchip: Rename data structure and functions

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Date:   Mon, 14 Aug 2023 14:42:21 +0100
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Minda Chen <minda.chen@...rfivetech.com>
CC:     Daire McNamara <daire.mcnamara@...rochip.com>,
        Conor Dooley <conor@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
        Pali Rohár <pali@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mason Huo <mason.huo@...rfivetech.com>,
        Leyfoon Tan <leyfoon.tan@...rfivetech.com>,
        Kevin Xie <kevin.xie@...rfivetech.com>
Subject: Re: [PATCH v3 04/11] PCI: microchip: Rename data structure and
 functions

On Mon, Aug 14, 2023 at 04:20:09PM +0800, Minda Chen wrote:
> Rename mc_* to plda_* for common data structures,
> setup and IRQ functions.
> 
> The modification includes:
> - Add related data structures of PCIe host instance.
>   mc_pcie --> plda_pcie_rp (Get most of data members)
>   mc_msi  --> plda_msi
> - function rename list:
>   mc_pcie_setup_window     --> plda_pcie_setup_window
>   mc_pcie_setup_windows    --> plda_pcie_setup_iomems
>   mc_allocate_msi_domains  --> plda_allocate_msi_domains
>   MSI interrupts related functions and IRQ domain
>   (primary function is mc_handle_msi):
>   mc_handle_msi            --> plda_handle_msi
>   INTx interrupts related functions and IRQ domain
>   (primary function is mc_handle_intx):
>   mc_handle_intx           --> plda_handle_intx
> 
> Signed-off-by: Minda Chen <minda.chen@...rfivetech.com>
> ---
>  .../pci/controller/plda/pcie-microchip-host.c | 216 ++++++++----------
>  drivers/pci/controller/plda/pcie-plda.h       |  20 ++
>  2 files changed, 120 insertions(+), 116 deletions(-)
> 
> diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
> index 5ab11741f406..e25459f34891 100644
> --- a/drivers/pci/controller/plda/pcie-microchip-host.c
> +++ b/drivers/pci/controller/plda/pcie-microchip-host.c
> @@ -21,9 +21,6 @@
>  #include "../../pci.h"
>  #include "pcie-plda.h"
>  
> -/* Number of MSI IRQs */
> -#define MC_MAX_NUM_MSI_IRQS			32
> -
>  /* PCIe Bridge Phy and Controller Phy offsets */
>  #define MC_PCIE1_BRIDGE_ADDR			0x00008000u
>  #define MC_PCIE1_CTRL_ADDR			0x0000a000u
> @@ -175,22 +172,9 @@ struct event_map {
>  	u32 event_bit;
>  };
>  
> -struct mc_msi {
> -	struct mutex lock;		/* Protect used bitmap */
> -	struct irq_domain *msi_domain;
> -	struct irq_domain *dev_domain;
> -	u32 num_vectors;
> -	u64 vector_phy;
> -	DECLARE_BITMAP(used, MC_MAX_NUM_MSI_IRQS);
> -};
> -
>  struct mc_pcie {
> +	struct plda_pcie_rp plda;

I'm not super keen on the "rp"s that've been introduced here and
elsewhere when "port" is what's used all over the shop.
Not a big gripe though, so
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.

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