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gru: support cch_allocate for kernel threads

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Change the interface to cch_allocate so that it can be used to allocate
GRU contexts for kernel threads.  Kernel threads use the GRU in unmapped
mode and do not require ASIDs for the GRU TLB.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jack Steiner
2009-06-17 16:28:21 -07:00
committed by Linus Torvalds
parent d57c82b107
commit 6e9100741c
4 changed files with 17 additions and 19 deletions
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12
drivers/misc/sgi-gru/gruhandles.c
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@@ -72,18 +72,8 @@ static int wait_instruction_complete(void *h, enum mcs_op opc)
return status;
}
int cch_allocate(struct gru_context_configuration_handle *cch,
int asidval, int sizeavail, unsigned long cbrmap,
unsigned long dsrmap)
int cch_allocate(struct gru_context_configuration_handle *cch)
{
int i;
for (i = 0; i < 8; i++) {
cch->asid[i] = (asidval++);
cch->sizeavail[i] = sizeavail;
}
cch->dsr_allocation_map = dsrmap;
cch->cbr_allocation_map = cbrmap;
cch->opc = CCHOP_ALLOCATE;
start_instruction(cch);
return wait_instruction_complete(cch, cchop_allocate);