sgi-gru: change GRU CCH commands from inline functions to outofline functions
Change the GRU instructions that manage contexts from inline functions to
out-of-line functions. This simplifies adding statistics & error checking
to these functions.
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>
diff --git a/drivers/misc/sgi-gru/gruhandles.h b/drivers/misc/sgi-gru/gruhandles.h
index fb72a52..dfce8ea 100644
--- a/drivers/misc/sgi-gru/gruhandles.h
+++ b/drivers/misc/sgi-gru/gruhandles.h
@@ -495,164 +495,22 @@
/* minimum TLB purge count to ensure a full purge */
#define GRUMAXINVAL 1024UL
+int cch_allocate(struct gru_context_configuration_handle *cch,
+ int asidval, unsigned long cbrmap, unsigned long dsrmap);
-/* Extract the status field from a kernel handle */
-#define GET_MSEG_HANDLE_STATUS(h) (((*(unsigned long *)(h)) >> 16) & 3)
-
-static inline void start_instruction(void *h)
-{
- unsigned long *w0 = h;
-
- wmb(); /* setting CMD bit must be last */
- *w0 = *w0 | 1;
- gru_flush_cache(h);
-}
-
-static inline int wait_instruction_complete(void *h)
-{
- int status;
-
- do {
- cpu_relax();
- barrier();
- status = GET_MSEG_HANDLE_STATUS(h);
- } while (status == CCHSTATUS_ACTIVE);
- return status;
-}
-
-#if defined CONFIG_IA64
-static inline void cch_allocate_set_asids(
- struct gru_context_configuration_handle *cch, int asidval)
-{
- int i;
-
- for (i = 0; i <= RGN_HPAGE; i++) { /* assume HPAGE is last region */
- cch->asid[i] = (asidval++);
-#if 0
- /* ZZZ hugepages not supported yet */
- if (i == RGN_HPAGE)
- cch->sizeavail[i] = GRU_SIZEAVAIL(hpage_shift);
- else
-#endif
- cch->sizeavail[i] = GRU_SIZEAVAIL(PAGE_SHIFT);
- }
-}
-#elif defined CONFIG_X86_64
-static inline void cch_allocate_set_asids(
- struct gru_context_configuration_handle *cch, int asidval)
-{
- int i;
-
- for (i = 0; i < 8; i++) {
- cch->asid[i] = asidval++;
- cch->sizeavail[i] = GRU_SIZEAVAIL(PAGE_SHIFT) |
- GRU_SIZEAVAIL(21);
- }
-}
-#endif
-
-static inline int cch_allocate(struct gru_context_configuration_handle *cch,
- int asidval, unsigned long cbrmap,
- unsigned long dsrmap)
-{
- cch_allocate_set_asids(cch, asidval);
- cch->dsr_allocation_map = dsrmap;
- cch->cbr_allocation_map = cbrmap;
- cch->opc = CCHOP_ALLOCATE;
- start_instruction(cch);
- return wait_instruction_complete(cch);
-}
-
-static inline int cch_start(struct gru_context_configuration_handle *cch)
-{
- cch->opc = CCHOP_START;
- start_instruction(cch);
- return wait_instruction_complete(cch);
-}
-
-static inline int cch_interrupt(struct gru_context_configuration_handle *cch)
-{
- cch->opc = CCHOP_INTERRUPT;
- start_instruction(cch);
- return wait_instruction_complete(cch);
-}
-
-static inline int cch_deallocate(struct gru_context_configuration_handle *cch)
-{
- cch->opc = CCHOP_DEALLOCATE;
- start_instruction(cch);
- return wait_instruction_complete(cch);
-}
-
-static inline int cch_interrupt_sync(struct gru_context_configuration_handle
- *cch)
-{
- cch->opc = CCHOP_INTERRUPT_SYNC;
- start_instruction(cch);
- return wait_instruction_complete(cch);
-}
-
-static inline int tgh_invalidate(struct gru_tlb_global_handle *tgh,
- unsigned long vaddr, unsigned long vaddrmask,
- int asid, int pagesize, int global, int n,
- unsigned short ctxbitmap)
-{
- tgh->vaddr = vaddr;
- tgh->asid = asid;
- tgh->pagesize = pagesize;
- tgh->n = n;
- tgh->global = global;
- tgh->vaddrmask = vaddrmask;
- tgh->ctxbitmap = ctxbitmap;
- tgh->opc = TGHOP_TLBINV;
- start_instruction(tgh);
- return wait_instruction_complete(tgh);
-}
-
-static inline void tfh_write_only(struct gru_tlb_fault_handle *tfh,
- unsigned long pfn, unsigned long vaddr,
- int asid, int dirty, int pagesize)
-{
- tfh->fillasid = asid;
- tfh->fillvaddr = vaddr;
- tfh->pfn = pfn;
- tfh->dirty = dirty;
- tfh->pagesize = pagesize;
- tfh->opc = TFHOP_WRITE_ONLY;
- start_instruction(tfh);
-}
-
-static inline void tfh_write_restart(struct gru_tlb_fault_handle *tfh,
- unsigned long paddr, int gaa,
- unsigned long vaddr, int asid, int dirty,
- int pagesize)
-{
- tfh->fillasid = asid;
- tfh->fillvaddr = vaddr;
- tfh->pfn = paddr >> GRU_PADDR_SHIFT;
- tfh->gaa = gaa;
- tfh->dirty = dirty;
- tfh->pagesize = pagesize;
- tfh->opc = TFHOP_WRITE_RESTART;
- start_instruction(tfh);
-}
-
-static inline void tfh_restart(struct gru_tlb_fault_handle *tfh)
-{
- tfh->opc = TFHOP_RESTART;
- start_instruction(tfh);
-}
-
-static inline void tfh_user_polling_mode(struct gru_tlb_fault_handle *tfh)
-{
- tfh->opc = TFHOP_USER_POLLING_MODE;
- start_instruction(tfh);
-}
-
-static inline void tfh_exception(struct gru_tlb_fault_handle *tfh)
-{
- tfh->opc = TFHOP_EXCEPTION;
- start_instruction(tfh);
-}
+int cch_start(struct gru_context_configuration_handle *cch);
+int cch_interrupt(struct gru_context_configuration_handle *cch);
+int cch_deallocate(struct gru_context_configuration_handle *cch);
+int cch_interrupt_sync(struct gru_context_configuration_handle *cch);
+int tgh_invalidate(struct gru_tlb_global_handle *tgh, unsigned long vaddr,
+ unsigned long vaddrmask, int asid, int pagesize, int global, int n,
+ unsigned short ctxbitmap);
+void tfh_write_only(struct gru_tlb_fault_handle *tfh, unsigned long pfn,
+ unsigned long vaddr, int asid, int dirty, int pagesize);
+void tfh_write_restart(struct gru_tlb_fault_handle *tfh, unsigned long paddr,
+ int gaa, unsigned long vaddr, int asid, int dirty, int pagesize);
+void tfh_restart(struct gru_tlb_fault_handle *tfh);
+void tfh_user_polling_mode(struct gru_tlb_fault_handle *tfh);
+void tfh_exception(struct gru_tlb_fault_handle *tfh);
#endif /* __GRUHANDLES_H__ */