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rapidio: change inbound window size type to u64

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Current definition of map_inb() mport operations callback uses u32 type
to specify required inbound window (IBW) size.  This is limiting factor
because existing hardware - tsi721 and fsl_rio, both support IBW size up
to 16GB.

Changing type of size parameter to u64 to allow IBW size configurations
larger than 4GB.

[alexandre.bounine@idt.com: remove compiler warning about size of constant]
  Link: http://lkml.kernel.org/r/20160802184856.2566-1-alexandre.bounine@idt.com
Link: http://lkml.kernel.org/r/1469125134-16523-11-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Barry Wood <barry.wood@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexandre Bounine 2016-08-02 14:06:54 -07:00 • committed by Linus Torvalds
parent 60e377b5c1
commit a057a52e94
3 changed files with 12 additions and 8 deletions
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4
arch/powerpc/sysdev/fsl_rio.c
View file

@ -289,7 +289,7 @@ static void fsl_rio_inbound_mem_init(struct rio_priv *priv)
}
int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
u64 rstart, u32 size, u32 flags)
u64 rstart, u64 size, u32 flags)
{
struct rio_priv *priv = mport->priv;
u32 base_size;
@ -298,7 +298,7 @@ int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
u32 riwar;
int i;
if ((size & (size - 1)) != 0)
if ((size & (size - 1)) != 0 || size > 0x400000000ULL)
return -EINVAL;
base_size_log = ilog2(size);