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[PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks

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  [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks Logan Gunthorpe <logang@deltatee.com> - 2017-08-22 19:10 +0200
    Re: [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of  in-driver hacks Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-08-22 19:50 +0200
      Re: [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of  in-driver hacks Logan Gunthorpe <logang@deltatee.com> - 2017-08-22 20:00 +0200
        Re: [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of  in-driver hacks Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-08-22 22:20 +0200

#1717597 — [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks

Now that ioread64 and iowrite64 are available in io-64-nonatomic,
we can remove the hack at the top of ntb_hw_intel.c and replace it
with an include.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Acked-by: Jon Mason <jdmason@kudzu.us>
---
 drivers/ntb/hw/intel/ntb_hw_intel.c | 30 +-----------------------------
 1 file changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
index 2557e2c05b90..606c90f59d4b 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.c
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -59,6 +59,7 @@
 #include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/ntb.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
 
 #include "ntb_hw_intel.h"
 
@@ -155,35 +156,6 @@ MODULE_PARM_DESC(xeon_b2b_dsd_bar5_addr32,
 static inline enum ntb_topo xeon_ppd_topo(struct intel_ntb_dev *ndev, u8 ppd);
 static int xeon_init_isr(struct intel_ntb_dev *ndev);
 
-#ifndef ioread64
-#ifdef readq
-#define ioread64 readq
-#else
-#define ioread64 _ioread64
-static inline u64 _ioread64(void __iomem *mmio)
-{
-	u64 low, high;
-
-	low = ioread32(mmio);
-	high = ioread32(mmio + sizeof(u32));
-	return low | (high << 32);
-}
-#endif
-#endif
-
-#ifndef iowrite64
-#ifdef writeq
-#define iowrite64 writeq
-#else
-#define iowrite64 _iowrite64
-static inline void _iowrite64(u64 val, void __iomem *mmio)
-{
-	iowrite32(val, mmio);
-	iowrite32(val >> 32, mmio + sizeof(u32));
-}
-#endif
-#endif
-
 static inline int pdev_is_atom(struct pci_dev *pdev)
 {
 	switch (pdev->device) {
-- 
2.11.0

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#1717622 — Re: [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks

On Tue, Aug 22, 2017 at 8:02 PM, Logan Gunthorpe <logang@deltatee.com> wrote:
> Now that ioread64 and iowrite64 are available in io-64-nonatomic,
> we can remove the hack at the top of ntb_hw_intel.c and replace it
> with an include.

> @@ -59,6 +59,7 @@
>  #include <linux/random.h>
>  #include <linux/slab.h>
>  #include <linux/ntb.h>
> +#include <linux/io-64-nonatomic-lo-hi.h>

I would rather try to squeeze to most alpabetiacelly ordered part of this block.
Otherwise it's a pretty nice clean up!

-- 
With Best Regards,
Andy Shevchenko

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#1717634 — Re: [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks

On 22/08/17 11:41 AM, Andy Shevchenko wrote:
>> @@ -59,6 +59,7 @@
>>   #include <linux/random.h>
>>   #include <linux/slab.h>
>>   #include <linux/ntb.h>
>> +#include <linux/io-64-nonatomic-lo-hi.h>
> 
> I would rather try to squeeze to most alpabetiacelly ordered part of this block.
> Otherwise it's a pretty nice clean up!
> 

I don't understand. The includes were not alphabetically in any order 
originally and I'd rather not reorder them in my patch.

Logan

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#1717799 — Re: [PATCH v7 6/7] ntb: ntb_hw_intel: use io-64-nonatomic instead of in-driver hacks

On Tue, Aug 22, 2017 at 8:56 PM, Logan Gunthorpe <logang@deltatee.com> wrote:
>
>
> On 22/08/17 11:41 AM, Andy Shevchenko wrote:
>>>
>>> @@ -59,6 +59,7 @@
>>>   #include <linux/random.h>
>>>   #include <linux/slab.h>
>>>   #include <linux/ntb.h>
>>> +#include <linux/io-64-nonatomic-lo-hi.h>
>>
>>
>> I would rather try to squeeze to most alpabetiacelly ordered part of this
>> block.
>> Otherwise it's a pretty nice clean up!
>>
>
> I don't understand. The includes were not alphabetically in any order
> originally and I'd rather not reorder them in my patch.

In excerpt I see if you put your include before random.h you will get
3 headers in order.
There may be even better sequence, I didn't check.


-- 
With Best Regards,
Andy Shevchenko

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