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path: root/drivers/misc/sgi-gru/grutables.h
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Diffstat (limited to 'drivers/misc/sgi-gru/grutables.h')
-rw-r--r--drivers/misc/sgi-gru/grutables.h60
1 files changed, 52 insertions, 8 deletions
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index bf1eeb7553e..34ab3d45391 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -148,11 +148,13 @@
#include <linux/wait.h>
#include <linux/mmu_notifier.h>
#include "gru.h"
+#include "grulib.h"
#include "gruhandles.h"
extern struct gru_stats_s gru_stats;
extern struct gru_blade_state *gru_base[];
extern unsigned long gru_start_paddr, gru_end_paddr;
+extern void *gru_start_vaddr;
extern unsigned int gru_max_gids;
#define GRU_MAX_BLADES MAX_NUMNODES
@@ -174,9 +176,12 @@ struct gru_stats_s {
atomic_long_t assign_context;
atomic_long_t assign_context_failed;
atomic_long_t free_context;
- atomic_long_t load_context;
- atomic_long_t unload_context;
- atomic_long_t steal_context;
+ atomic_long_t load_user_context;
+ atomic_long_t load_kernel_context;
+ atomic_long_t lock_kernel_context;
+ atomic_long_t unlock_kernel_context;
+ atomic_long_t steal_user_context;
+ atomic_long_t steal_kernel_context;
atomic_long_t steal_context_failed;
atomic_long_t nopfn;
atomic_long_t break_cow;
@@ -193,7 +198,7 @@ struct gru_stats_s {
atomic_long_t user_flush_tlb;
atomic_long_t user_unload_context;
atomic_long_t user_exception;
- atomic_long_t set_task_slice;
+ atomic_long_t set_context_option;
atomic_long_t migrate_check;
atomic_long_t migrated_retarget;
atomic_long_t migrated_unload;
@@ -207,6 +212,9 @@ struct gru_stats_s {
atomic_long_t tlb_dropin_fail_range_active;
atomic_long_t tlb_dropin_fail_idle;
atomic_long_t tlb_dropin_fail_fmm;
+ atomic_long_t tlb_dropin_fail_no_exception;
+ atomic_long_t tlb_dropin_fail_no_exception_war;
+ atomic_long_t tfh_stale_on_fault;
atomic_long_t mmu_invalidate_range;
atomic_long_t mmu_invalidate_page;
atomic_long_t mmu_clear_flush_young;
@@ -253,7 +261,6 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
#define OPT_DPRINT 1
#define OPT_STATS 2
-#define GRU_QUICKLOOK 4
#define IRQ_GRU 110 /* Starting IRQ number for interrupts */
@@ -373,6 +380,7 @@ struct gru_thread_state {
required for contest */
unsigned char ts_cbr_au_count;/* Number of CBR resources
required for contest */
+ char ts_cch_req_slice;/* CCH packet slice */
char ts_blade; /* If >= 0, migrate context if
ref from diferent blade */
char ts_force_cch_reload;
@@ -380,6 +388,9 @@ struct gru_thread_state {
after migration */
char ts_cbr_idx[GRU_CBR_AU];/* CBR numbers of each
allocated CB */
+ int ts_data_valid; /* Indicates if ts_gdata has
+ valid data */
+ struct gts_statistics ustats; /* User statistics */
unsigned long ts_gdata[0]; /* save area for GRU data (CB,
DS, CBE) */
};
@@ -452,6 +463,14 @@ struct gru_blade_state {
reserved cb */
void *kernel_dsr; /* First kernel
reserved DSR */
+ struct rw_semaphore bs_kgts_sema; /* lock for kgts */
+ struct gru_thread_state *bs_kgts; /* GTS for kernel use */
+
+ /* ---- the following are used for managing kernel async GRU CBRs --- */
+ int bs_async_dsr_bytes; /* DSRs for async */
+ int bs_async_cbrs; /* CBRs AU for async */
+ struct completion *bs_async_wq;
+
/* ---- the following are protected by the bs_lock spinlock ---- */
spinlock_t bs_lock; /* lock used for
stealing contexts */
@@ -552,6 +571,12 @@ struct gru_blade_state {
/* Lock hierarchy checking enabled only in emulator */
+/* 0 = lock failed, 1 = locked */
+static inline int __trylock_handle(void *h)
+{
+ return !test_and_set_bit(1, h);
+}
+
static inline void __lock_handle(void *h)
{
while (test_and_set_bit(1, h))
@@ -563,6 +588,11 @@ static inline void __unlock_handle(void *h)
clear_bit(1, h);
}
+static inline int trylock_cch_handle(struct gru_context_configuration_handle *cch)
+{
+ return __trylock_handle(cch);
+}
+
static inline void lock_cch_handle(struct gru_context_configuration_handle *cch)
{
__lock_handle(cch);
@@ -584,6 +614,11 @@ static inline void unlock_tgh_handle(struct gru_tlb_global_handle *tgh)
__unlock_handle(tgh);
}
+static inline int is_kernel_context(struct gru_thread_state *gts)
+{
+ return !gts->ts_mm;
+}
+
/*-----------------------------------------------------------------------------
* Function prototypes & externs
*/
@@ -598,24 +633,32 @@ extern struct gru_thread_state *gru_find_thread_state(struct vm_area_struct
*vma, int tsid);
extern struct gru_thread_state *gru_alloc_thread_state(struct vm_area_struct
*vma, int tsid);
+extern struct gru_state *gru_assign_gru_context(struct gru_thread_state *gts,
+ int blade);
+extern void gru_load_context(struct gru_thread_state *gts);
+extern void gru_steal_context(struct gru_thread_state *gts, int blade_id);
extern void gru_unload_context(struct gru_thread_state *gts, int savestate);
extern int gru_update_cch(struct gru_thread_state *gts, int force_unload);
extern void gts_drop(struct gru_thread_state *gts);
extern void gru_tgh_flush_init(struct gru_state *gru);
-extern int gru_kservices_init(struct gru_state *gru);
-extern void gru_kservices_exit(struct gru_state *gru);
+extern int gru_kservices_init(void);
+extern void gru_kservices_exit(void);
+extern int gru_dump_chiplet_request(unsigned long arg);
+extern long gru_get_gseg_statistics(unsigned long arg);
extern irqreturn_t gru_intr(int irq, void *dev_id);
extern int gru_handle_user_call_os(unsigned long address);
extern int gru_user_flush_tlb(unsigned long arg);
extern int gru_user_unload_context(unsigned long arg);
extern int gru_get_exception_detail(unsigned long arg);
-extern int gru_set_task_slice(long address);
+extern int gru_set_context_option(unsigned long address);
extern int gru_cpu_fault_map_id(void);
extern struct vm_area_struct *gru_find_vma(unsigned long vaddr);
extern void gru_flush_all_tlb(struct gru_state *gru);
extern int gru_proc_init(void);
extern void gru_proc_exit(void);
+extern struct gru_thread_state *gru_alloc_gts(struct vm_area_struct *vma,
+ int cbr_au_count, int dsr_au_count, int options, int tsid);
extern unsigned long gru_reserve_cb_resources(struct gru_state *gru,
int cbr_au_count, char *cbmap);
extern unsigned long gru_reserve_ds_resources(struct gru_state *gru,
@@ -624,6 +667,7 @@ extern int gru_fault(struct vm_area_struct *, struct vm_fault *vmf);
extern struct gru_mm_struct *gru_register_mmu_notifier(void);
extern void gru_drop_mmu_notifier(struct gru_mm_struct *gms);
+extern int gru_ktest(unsigned long arg);
extern void gru_flush_tlb_range(struct gru_mm_struct *gms, unsigned long start,
unsigned long len);