[POWERPC] ps3: add lpar addressing
Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables the PS3 lpar address translation mechanism. This is a currently needed workaround for limitations in the design of the generic cell spu support. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This commit is contained in:
Родитель
2832a81df7
Коммит
261efc3f17
|
@ -29,4 +29,15 @@ config PS3_DYNAMIC_DMA
|
|||
This support is mainly for Linux kernel development. If unsure,
|
||||
say N.
|
||||
|
||||
config PS3_USE_LPAR_ADDR
|
||||
depends on PPC_PS3 && EXPERIMENTAL
|
||||
bool "PS3 use lpar address space"
|
||||
default y
|
||||
help
|
||||
This option is solely for experimentation by experts. Disables
|
||||
translation of lpar addresses. SPE support currently won't work
|
||||
without this set to y.
|
||||
|
||||
If you have any doubt, choose the default y.
|
||||
|
||||
endmenu
|
||||
|
|
|
@ -9,8 +9,14 @@
|
|||
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
|
||||
*/
|
||||
#define SECTION_SIZE_BITS 24
|
||||
|
||||
#if defined(CONFIG_PS3_USE_LPAR_ADDR)
|
||||
#define MAX_PHYSADDR_BITS 47
|
||||
#define MAX_PHYSMEM_BITS 47
|
||||
#else
|
||||
#define MAX_PHYSADDR_BITS 44
|
||||
#define MAX_PHYSMEM_BITS 44
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_MEMORY_HOTPLUG
|
||||
extern void create_section_mapping(unsigned long start, unsigned long end);
|
||||
|
|
Загрузка…
Ссылка в новой задаче