diff options
Diffstat (limited to 'drivers/misc/sgi-gru/gruhandles.h')
| -rw-r--r-- | drivers/misc/sgi-gru/gruhandles.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/gruhandles.h b/drivers/misc/sgi-gru/gruhandles.h index f44112242d00..47b762f89e0d 100644 --- a/drivers/misc/sgi-gru/gruhandles.h +++ b/drivers/misc/sgi-gru/gruhandles.h @@ -91,6 +91,12 @@ /* Convert an arbitrary handle address to the beginning of the GRU segment */ #define GRUBASE(h) ((void *)((unsigned long)(h) & ~(GRU_SIZE - 1))) +/* Test a valid handle address to determine the type */ +#define TYPE_IS(hn, h) ((h) >= GRU_##hn##_BASE && (h) < \ + GRU_##hn##_BASE + GRU_NUM_##hn * GRU_HANDLE_STRIDE && \ + (((h) & (GRU_HANDLE_STRIDE - 1)) == 0)) + + /* General addressing macros. */ static inline void *get_gseg_base_address(void *base, int ctxnum) { |