* [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity
@ 2017-11-29 0:53 Stephen Boyd
2017-11-29 23:48 ` Jingoo Han
2017-12-11 10:19 ` Lorenzo Pieralisi
0 siblings, 2 replies; 4+ messages in thread
From: Stephen Boyd @ 2017-11-29 0:53 UTC (permalink / raw)
To: Jingoo Han, Joao Pinto; +Cc: linux-kernel, Bjorn Helgaas, linux-pci
We have macros for getting the upper or lower 32 bits of a
number. Use them here to shave a couple lines off the code.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/pci/dwc/pcie-designware-host.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
index 157621175147..ae5abfddf8de 100644
--- a/drivers/pci/dwc/pcie-designware-host.c
+++ b/drivers/pci/dwc/pcie-designware-host.c
@@ -89,10 +89,8 @@ void dw_pcie_msi_init(struct pcie_port *pp)
msi_target = virt_to_phys((void *)pp->msi_data);
/* program the msi_data */
- dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
- (u32)(msi_target & 0xffffffff));
- dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4,
- (u32)(msi_target >> 32 & 0xffffffff));
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4, lower_32_bits(msi_target));
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4, upper_32_bits(msi_target));
}
static void dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity
2017-11-29 0:53 [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity Stephen Boyd
@ 2017-11-29 23:48 ` Jingoo Han
2017-12-11 10:19 ` Lorenzo Pieralisi
1 sibling, 0 replies; 4+ messages in thread
From: Jingoo Han @ 2017-11-29 23:48 UTC (permalink / raw)
To: 'Stephen Boyd', 'Joao Pinto'
Cc: linux-kernel, 'Bjorn Helgaas', linux-pci
On Tuesday, November 28, 2017 7:54 PM, Stephen Boyd wrote:
>
> We have macros for getting the upper or lower 32 bits of a
> number. Use them here to shave a couple lines off the code.
>
> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Best regards,
Jingoo Han
> ---
> drivers/pci/dwc/pcie-designware-host.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/dwc/pcie-designware-host.c
> b/drivers/pci/dwc/pcie-designware-host.c
> index 157621175147..ae5abfddf8de 100644
> --- a/drivers/pci/dwc/pcie-designware-host.c
> +++ b/drivers/pci/dwc/pcie-designware-host.c
> @@ -89,10 +89,8 @@ void dw_pcie_msi_init(struct pcie_port *pp)
> msi_target = virt_to_phys((void *)pp->msi_data);
>
> /* program the msi_data */
> - dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
> - (u32)(msi_target & 0xffffffff));
> - dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4,
> - (u32)(msi_target >> 32 & 0xffffffff));
> + dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
> lower_32_bits(msi_target));
> + dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4,
> upper_32_bits(msi_target));
> }
>
> static void dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq)
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity
2017-11-29 0:53 [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity Stephen Boyd
2017-11-29 23:48 ` Jingoo Han
@ 2017-12-11 10:19 ` Lorenzo Pieralisi
2017-12-19 20:16 ` Stephen Boyd
1 sibling, 1 reply; 4+ messages in thread
From: Lorenzo Pieralisi @ 2017-12-11 10:19 UTC (permalink / raw)
To: Stephen Boyd
Cc: Jingoo Han, Joao Pinto, linux-kernel, Bjorn Helgaas, linux-pci
On Tue, Nov 28, 2017 at 04:53:34PM -0800, Stephen Boyd wrote:
> We have macros for getting the upper or lower 32 bits of a
> number. Use them here to shave a couple lines off the code.
>
> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
> ---
> drivers/pci/dwc/pcie-designware-host.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
> index 157621175147..ae5abfddf8de 100644
> --- a/drivers/pci/dwc/pcie-designware-host.c
> +++ b/drivers/pci/dwc/pcie-designware-host.c
> @@ -89,10 +89,8 @@ void dw_pcie_msi_init(struct pcie_port *pp)
> msi_target = virt_to_phys((void *)pp->msi_data);
>
> /* program the msi_data */
> - dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
> - (u32)(msi_target & 0xffffffff));
> - dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4,
> - (u32)(msi_target >> 32 & 0xffffffff));
> + dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4, lower_32_bits(msi_target));
> + dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4, upper_32_bits(msi_target));
> }
Hi Stephen,
I was about to apply it but I think that for consistency it would be
better to convert to {lower,upper}_32_bits() also code in
dw_msi_setup_msg() and slightly reword the log accordingly; if you do
not mind sending a v2 with those changes I will apply then.
Thanks,
Lorenzo
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity
2017-12-11 10:19 ` Lorenzo Pieralisi
@ 2017-12-19 20:16 ` Stephen Boyd
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Boyd @ 2017-12-19 20:16 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Jingoo Han, Joao Pinto, linux-kernel, Bjorn Helgaas, linux-pci
On 12/11, Lorenzo Pieralisi wrote:
> On Tue, Nov 28, 2017 at 04:53:34PM -0800, Stephen Boyd wrote:
> > We have macros for getting the upper or lower 32 bits of a
> > number. Use them here to shave a couple lines off the code.
> >
> > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
> > ---
> > drivers/pci/dwc/pcie-designware-host.c | 6 ++----
> > 1 file changed, 2 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
> > index 157621175147..ae5abfddf8de 100644
> > --- a/drivers/pci/dwc/pcie-designware-host.c
> > +++ b/drivers/pci/dwc/pcie-designware-host.c
> > @@ -89,10 +89,8 @@ void dw_pcie_msi_init(struct pcie_port *pp)
> > msi_target = virt_to_phys((void *)pp->msi_data);
> >
> > /* program the msi_data */
> > - dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
> > - (u32)(msi_target & 0xffffffff));
> > - dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4,
> > - (u32)(msi_target >> 32 & 0xffffffff));
> > + dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4, lower_32_bits(msi_target));
> > + dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4, upper_32_bits(msi_target));
> > }
>
> Hi Stephen,
>
> I was about to apply it but I think that for consistency it would be
> better to convert to {lower,upper}_32_bits() also code in
> dw_msi_setup_msg() and slightly reword the log accordingly; if you do
> not mind sending a v2 with those changes I will apply then.
>
Ok. v2 coming shortly.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-12-19 20:16 UTC | newest]
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2017-11-29 0:53 [PATCH] PCI: dwc: Use {upper,lower}_32_bits() macros for clarity Stephen Boyd
2017-11-29 23:48 ` Jingoo Han
2017-12-11 10:19 ` Lorenzo Pieralisi
2017-12-19 20:16 ` Stephen Boyd
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