diff options
| author | Alexandre Bounine | 2016-08-02 14:06:54 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2016-08-02 19:35:37 -0400 |
| commit | a057a52e94e15d89be8af557584e0144a496b6c6 (patch) | |
| tree | 94f430671c0aacbb4613eddcf2b349082d8b0e30 /arch | |
| parent | 60e377b5c1226d6737786947d0e915ab45d7f188 (diff) | |
rapidio: change inbound window size type to u64
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_rio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c index f5bf38b94595..386790cfa16e 100644 --- a/arch/powerpc/sysdev/fsl_rio.c +++ b/arch/powerpc/sysdev/fsl_rio.c @@ -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); |