kernel_optimize_test/arch/sh
Thomas Petazzoni bf9c7e3d79 arch/sh: pcie-sh7786: handle non-zero DMA offset
On SuperH, the base of the physical memory might be different from
zero. In this case, PCI address zero will map to a non-zero physical
address. In order to make sure that the DMA mapping API takes care of
this DMA offset, we must fill in the dev->dma_pfn_offset field for PCI
devices. This gets done in the pcibios_bus_add_device() hook, called
for each new PCI device detected.

The dma_pfn_offset global variable is re-calculated for every PCI
controller available on the platform, but that's not an issue because
its value will each time be exactly the same, as it only depends on
the memory start address and memory size.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Rich Felker <dalias@libc.org>
2018-04-12 19:47:58 -04:00
..
boards sh: fix memory corruption of unflattened device tree 2018-04-12 19:47:51 -04:00
boot sh: fix build error for empty CONFIG_BUILTIN_DTB_SOURCE 2018-03-02 09:20:55 +09:00
cchips
configs firmware: Drop FIRMWARE_IN_KERNEL Kconfig option 2018-01-25 12:46:30 +01:00
drivers arch/sh: pcie-sh7786: handle non-zero DMA offset 2018-04-12 19:47:58 -04:00
include arch/sh: add sh7786_mm_sel() function 2018-04-12 19:47:53 -04:00
kernel arch/sh: make the DMA mapping operations observe dev->dma_pfn_offset 2018-04-12 19:47:53 -04:00
lib
lib64
math-emu
mm arch/sh: make the DMA mapping operations observe dev->dma_pfn_offset 2018-04-12 19:47:53 -04:00
oprofile
tools
Kconfig
Kconfig.cpu
Kconfig.debug
Makefile