6263203ed6
Add the concept of a gang to spufs as a new type of object. So far, this has no impact whatsover on scheduling, but makes it possible to add that later. A new type of object in spufs is now a spu_gang. It is created with the spu_create system call with the flags argument set to SPU_CREATE_GANG (0x2). Inside of a spu_gang, it is then possible to create spu_context objects, which until now was only possible at the root of spufs. There is a new member in struct spu_context pointing to the spu_gang it belongs to, if any. The spu_gang maintains a list of spu_context structures that are its children. This information can then be used in the scheduler in the future. There is still a bug that needs to be resolved in this basic infrastructure regarding the order in which objects are removed. When the spu_gang file descriptor is closed before the spu_context descriptors, we leak the dentry and inode for the gang. Any ideas how to cleanly solve this are appreciated. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> |
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| .. | ||
| spufs | ||
| cbe_regs.c | ||
| cbe_regs.h | ||
| interrupt.c | ||
| interrupt.h | ||
| iommu.c | ||
| iommu.h | ||
| Kconfig | ||
| Makefile | ||
| pervasive.c | ||
| pervasive.h | ||
| ras.c | ||
| ras.h | ||
| setup.c | ||
| smp.c | ||
| spider-pic.c | ||
| spu_base.c | ||
| spu_callbacks.c | ||
| spu_priv1_mmio.c | ||
| spu_syscalls.c | ||