sgi-gru: misc GRU cleanup
Misc trivial GRU drivers fixes:
- fix long lines
- eliminate extra whitespace
- eliminate compiler warning
- better validation of invalidate user parameters
- bug fix for GRU TLB flush (not the cpu TLB flush)
These changes are all internal to the SGI GRU driver and have no effect
on the base kernel.
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/grutables.h b/drivers/misc/sgi-gru/grutables.h
index a78f70d..db3fe08 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -278,13 +278,12 @@
/* Generate a GRU asid value from a GRU base asid & a virtual address. */
#if defined CONFIG_IA64
#define VADDR_HI_BIT 64
-#define GRUREGION(addr) ((addr) >> (VADDR_HI_BIT - 3) & 3)
#elif defined CONFIG_X86_64
#define VADDR_HI_BIT 48
-#define GRUREGION(addr) (0) /* ZZZ could do better */
#else
#error "Unsupported architecture"
#endif
+#define GRUREGION(addr) ((addr) >> (VADDR_HI_BIT - 3) & 3)
#define GRUASID(asid, addr) ((asid) + GRUREGION(addr))
/*------------------------------------------------------------------------------
@@ -297,12 +296,12 @@
* This structure is pointed to from the mmstruct via the notifier pointer.
* There is one of these per address space.
*/
-struct gru_mm_tracker {
- unsigned int mt_asid_gen; /* ASID wrap count */
- int mt_asid; /* current base ASID for gru */
- unsigned short mt_ctxbitmap; /* bitmap of contexts using
+struct gru_mm_tracker { /* pack to reduce size */
+ unsigned int mt_asid_gen:24; /* ASID wrap count */
+ unsigned int mt_asid:24; /* current base ASID for gru */
+ unsigned short mt_ctxbitmap:16;/* bitmap of contexts using
asid */
-};
+} __attribute__ ((packed));
struct gru_mm_struct {
struct mmu_notifier ms_notifier;
@@ -359,6 +358,8 @@
required for contest */
unsigned char ts_cbr_au_count;/* Number of CBR resources
required for contest */
+ char ts_blade; /* If >= 0, migrate context if
+ ref from diferent blade */
char ts_force_unload;/* force context to be unloaded
after migration */
char ts_cbr_idx[GRU_CBR_AU];/* CBR numbers of each