610 строки
20 KiB
C
610 строки
20 KiB
C
/*
|
|
* SN Platform GRU Driver
|
|
*
|
|
* GRU DRIVER TABLES, MACROS, externs, etc
|
|
*
|
|
* Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __GRUTABLES_H__
|
|
#define __GRUTABLES_H__
|
|
|
|
/*
|
|
* GRU Chiplet:
|
|
* The GRU is a user addressible memory accelerator. It provides
|
|
* several forms of load, store, memset, bcopy instructions. In addition, it
|
|
* contains special instructions for AMOs, sending messages to message
|
|
* queues, etc.
|
|
*
|
|
* The GRU is an integral part of the node controller. It connects
|
|
* directly to the cpu socket. In its current implementation, there are 2
|
|
* GRU chiplets in the node controller on each blade (~node).
|
|
*
|
|
* The entire GRU memory space is fully coherent and cacheable by the cpus.
|
|
*
|
|
* Each GRU chiplet has a physical memory map that looks like the following:
|
|
*
|
|
* +-----------------+
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* |/////////////////|
|
|
* +-----------------+
|
|
* | system control |
|
|
* +-----------------+ _______ +-------------+
|
|
* |/////////////////| / | |
|
|
* |/////////////////| / | |
|
|
* |/////////////////| / | instructions|
|
|
* |/////////////////| / | |
|
|
* |/////////////////| / | |
|
|
* |/////////////////| / |-------------|
|
|
* |/////////////////| / | |
|
|
* +-----------------+ | |
|
|
* | context 15 | | data |
|
|
* +-----------------+ | |
|
|
* | ...... | \ | |
|
|
* +-----------------+ \____________ +-------------+
|
|
* | context 1 |
|
|
* +-----------------+
|
|
* | context 0 |
|
|
* +-----------------+
|
|
*
|
|
* Each of the "contexts" is a chunk of memory that can be mmaped into user
|
|
* space. The context consists of 2 parts:
|
|
*
|
|
* - an instruction space that can be directly accessed by the user
|
|
* to issue GRU instructions and to check instruction status.
|
|
*
|
|
* - a data area that acts as normal RAM.
|
|
*
|
|
* User instructions contain virtual addresses of data to be accessed by the
|
|
* GRU. The GRU contains a TLB that is used to convert these user virtual
|
|
* addresses to physical addresses.
|
|
*
|
|
* The "system control" area of the GRU chiplet is used by the kernel driver
|
|
* to manage user contexts and to perform functions such as TLB dropin and
|
|
* purging.
|
|
*
|
|
* One context may be reserved for the kernel and used for cross-partition
|
|
* communication. The GRU will also be used to asynchronously zero out
|
|
* large blocks of memory (not currently implemented).
|
|
*
|
|
*
|
|
* Tables:
|
|
*
|
|
* VDATA-VMA Data - Holds a few parameters. Head of linked list of
|
|
* GTS tables for threads using the GSEG
|
|
* GTS - Gru Thread State - contains info for managing a GSEG context. A
|
|
* GTS is allocated for each thread accessing a
|
|
* GSEG.
|
|
* GTD - GRU Thread Data - contains shadow copy of GRU data when GSEG is
|
|
* not loaded into a GRU
|
|
* GMS - GRU Memory Struct - Used to manage TLB shootdowns. Tracks GRUs
|
|
* where a GSEG has been loaded. Similar to
|
|
* an mm_struct but for GRU.
|
|
*
|
|
* GS - GRU State - Used to manage the state of a GRU chiplet
|
|
* BS - Blade State - Used to manage state of all GRU chiplets
|
|
* on a blade
|
|
*
|
|
*
|
|
* Normal task tables for task using GRU.
|
|
* - 2 threads in process
|
|
* - 2 GSEGs open in process
|
|
* - GSEG1 is being used by both threads
|
|
* - GSEG2 is used only by thread 2
|
|
*
|
|
* task -->|
|
|
* task ---+---> mm ->------ (notifier) -------+-> gms
|
|
* | |
|
|
* |--> vma -> vdata ---> gts--->| GSEG1 (thread1)
|
|
* | | |
|
|
* | +-> gts--->| GSEG1 (thread2)
|
|
* | |
|
|
* |--> vma -> vdata ---> gts--->| GSEG2 (thread2)
|
|
* .
|
|
* .
|
|
*
|
|
* GSEGs are marked DONTCOPY on fork
|
|
*
|
|
* At open
|
|
* file.private_data -> NULL
|
|
*
|
|
* At mmap,
|
|
* vma -> vdata
|
|
*
|
|
* After gseg reference
|
|
* vma -> vdata ->gts
|
|
*
|
|
* After fork
|
|
* parent
|
|
* vma -> vdata -> gts
|
|
* child
|
|
* (vma is not copied)
|
|
*
|
|
*/
|
|
|
|
#include <linux/rmap.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/wait.h>
|
|
#include <linux/mmu_notifier.h>
|
|
#include "gru.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;
|
|
|
|
#define GRU_MAX_BLADES MAX_NUMNODES
|
|
#define GRU_MAX_GRUS (GRU_MAX_BLADES * GRU_CHIPLETS_PER_BLADE)
|
|
|
|
#define GRU_DRIVER_ID_STR "SGI GRU Device Driver"
|
|
#define GRU_DRIVER_VERSION_STR "0.80"
|
|
|
|
/*
|
|
* GRU statistics.
|
|
*/
|
|
struct gru_stats_s {
|
|
atomic_long_t vdata_alloc;
|
|
atomic_long_t vdata_free;
|
|
atomic_long_t gts_alloc;
|
|
atomic_long_t gts_free;
|
|
atomic_long_t vdata_double_alloc;
|
|
atomic_long_t gts_double_allocate;
|
|
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 steal_context_failed;
|
|
atomic_long_t nopfn;
|
|
atomic_long_t break_cow;
|
|
atomic_long_t asid_new;
|
|
atomic_long_t asid_next;
|
|
atomic_long_t asid_wrap;
|
|
atomic_long_t asid_reuse;
|
|
atomic_long_t intr;
|
|
atomic_long_t call_os;
|
|
atomic_long_t call_os_check_for_bug;
|
|
atomic_long_t call_os_wait_queue;
|
|
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 migrate_check;
|
|
atomic_long_t migrated_retarget;
|
|
atomic_long_t migrated_unload;
|
|
atomic_long_t migrated_unload_delay;
|
|
atomic_long_t migrated_nopfn_retarget;
|
|
atomic_long_t migrated_nopfn_unload;
|
|
atomic_long_t tlb_dropin;
|
|
atomic_long_t tlb_dropin_fail_no_asid;
|
|
atomic_long_t tlb_dropin_fail_upm;
|
|
atomic_long_t tlb_dropin_fail_invalid;
|
|
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 mmu_invalidate_range;
|
|
atomic_long_t mmu_invalidate_page;
|
|
atomic_long_t mmu_clear_flush_young;
|
|
atomic_long_t flush_tlb;
|
|
atomic_long_t flush_tlb_gru;
|
|
atomic_long_t flush_tlb_gru_tgh;
|
|
atomic_long_t flush_tlb_gru_zero_asid;
|
|
|
|
atomic_long_t copy_gpa;
|
|
|
|
atomic_long_t mesq_receive;
|
|
atomic_long_t mesq_receive_none;
|
|
atomic_long_t mesq_send;
|
|
atomic_long_t mesq_send_failed;
|
|
atomic_long_t mesq_noop;
|
|
atomic_long_t mesq_send_unexpected_error;
|
|
atomic_long_t mesq_send_lb_overflow;
|
|
atomic_long_t mesq_send_qlimit_reached;
|
|
atomic_long_t mesq_send_amo_nacked;
|
|
atomic_long_t mesq_send_put_nacked;
|
|
atomic_long_t mesq_qf_not_full;
|
|
atomic_long_t mesq_qf_locked;
|
|
atomic_long_t mesq_qf_noop_not_full;
|
|
atomic_long_t mesq_qf_switch_head_failed;
|
|
atomic_long_t mesq_qf_unexpected_error;
|
|
atomic_long_t mesq_noop_unexpected_error;
|
|
atomic_long_t mesq_noop_lb_overflow;
|
|
atomic_long_t mesq_noop_qlimit_reached;
|
|
atomic_long_t mesq_noop_amo_nacked;
|
|
atomic_long_t mesq_noop_put_nacked;
|
|
|
|
};
|
|
|
|
#define OPT_DPRINT 1
|
|
#define OPT_STATS 2
|
|
#define GRU_QUICKLOOK 4
|
|
|
|
|
|
#define IRQ_GRU 110 /* Starting IRQ number for interrupts */
|
|
|
|
/* Delay in jiffies between attempts to assign a GRU context */
|
|
#define GRU_ASSIGN_DELAY ((HZ * 20) / 1000)
|
|
|
|
/*
|
|
* If a process has it's context stolen, min delay in jiffies before trying to
|
|
* steal a context from another process.
|
|
*/
|
|
#define GRU_STEAL_DELAY ((HZ * 200) / 1000)
|
|
|
|
#define STAT(id) do { \
|
|
if (gru_options & OPT_STATS) \
|
|
atomic_long_inc(&gru_stats.id); \
|
|
} while (0)
|
|
|
|
#ifdef CONFIG_SGI_GRU_DEBUG
|
|
#define gru_dbg(dev, fmt, x...) \
|
|
do { \
|
|
if (gru_options & OPT_DPRINT) \
|
|
dev_dbg(dev, "%s: " fmt, __func__, x); \
|
|
} while (0)
|
|
#else
|
|
#define gru_dbg(x...)
|
|
#endif
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* ASID management
|
|
*/
|
|
#define MAX_ASID 0xfffff0
|
|
#define MIN_ASID 8
|
|
#define ASID_INC 8 /* number of regions */
|
|
|
|
/* 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 __x86_64
|
|
#define VADDR_HI_BIT 48
|
|
#define GRUREGION(addr) (0) /* ZZZ could do better */
|
|
#else
|
|
#error "Unsupported architecture"
|
|
#endif
|
|
#define GRUASID(asid, addr) ((asid) + GRUREGION(addr))
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* File & VMS Tables
|
|
*/
|
|
|
|
struct gru_state;
|
|
|
|
/*
|
|
* 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
|
|
asid */
|
|
};
|
|
|
|
struct gru_mm_struct {
|
|
struct mmu_notifier ms_notifier;
|
|
atomic_t ms_refcnt;
|
|
spinlock_t ms_asid_lock; /* protects ASID assignment */
|
|
atomic_t ms_range_active;/* num range_invals active */
|
|
char ms_released;
|
|
wait_queue_head_t ms_wait_queue;
|
|
DECLARE_BITMAP(ms_asidmap, GRU_MAX_GRUS);
|
|
struct gru_mm_tracker ms_asids[GRU_MAX_GRUS];
|
|
};
|
|
|
|
/*
|
|
* One of these structures is allocated when a GSEG is mmaped. The
|
|
* structure is pointed to by the vma->vm_private_data field in the vma struct.
|
|
*/
|
|
struct gru_vma_data {
|
|
spinlock_t vd_lock; /* Serialize access to vma */
|
|
struct list_head vd_head; /* head of linked list of gts */
|
|
long vd_user_options;/* misc user option flags */
|
|
int vd_cbr_au_count;
|
|
int vd_dsr_au_count;
|
|
};
|
|
|
|
/*
|
|
* One of these is allocated for each thread accessing a mmaped GRU. A linked
|
|
* list of these structure is hung off the struct gru_vma_data in the mm_struct.
|
|
*/
|
|
struct gru_thread_state {
|
|
struct list_head ts_next; /* list - head at vma-private */
|
|
struct mutex ts_ctxlock; /* load/unload CTX lock */
|
|
struct mm_struct *ts_mm; /* mm currently mapped to
|
|
context */
|
|
struct vm_area_struct *ts_vma; /* vma of GRU context */
|
|
struct gru_state *ts_gru; /* GRU where the context is
|
|
loaded */
|
|
struct gru_mm_struct *ts_gms; /* asid & ioproc struct */
|
|
unsigned long ts_cbr_map; /* map of allocated CBRs */
|
|
unsigned long ts_dsr_map; /* map of allocated DATA
|
|
resources */
|
|
unsigned long ts_steal_jiffies;/* jiffies when context last
|
|
stolen */
|
|
long ts_user_options;/* misc user option flags */
|
|
pid_t ts_tgid_owner; /* task that is using the
|
|
context - for migration */
|
|
int ts_tsid; /* thread that owns the
|
|
structure */
|
|
int ts_tlb_int_select;/* target cpu if interrupts
|
|
enabled */
|
|
int ts_ctxnum; /* context number where the
|
|
context is loaded */
|
|
atomic_t ts_refcnt; /* reference count GTS */
|
|
unsigned char ts_dsr_au_count;/* Number of DSR resources
|
|
required for contest */
|
|
unsigned char ts_cbr_au_count;/* Number of CBR resources
|
|
required for contest */
|
|
char ts_force_unload;/* force context to be unloaded
|
|
after migration */
|
|
char ts_cbr_idx[GRU_CBR_AU];/* CBR numbers of each
|
|
allocated CB */
|
|
unsigned long ts_gdata[0]; /* save area for GRU data (CB,
|
|
DS, CBE) */
|
|
};
|
|
|
|
/*
|
|
* Threaded programs actually allocate an array of GSEGs when a context is
|
|
* created. Each thread uses a separate GSEG. TSID is the index into the GSEG
|
|
* array.
|
|
*/
|
|
#define TSID(a, v) (((a) - (v)->vm_start) / GRU_GSEG_PAGESIZE)
|
|
#define UGRUADDR(gts) ((gts)->ts_vma->vm_start + \
|
|
(gts)->ts_tsid * GRU_GSEG_PAGESIZE)
|
|
|
|
#define NULLCTX (-1) /* if context not loaded into GRU */
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* GRU State Tables
|
|
*/
|
|
|
|
/*
|
|
* One of these exists for each GRU chiplet.
|
|
*/
|
|
struct gru_state {
|
|
struct gru_blade_state *gs_blade; /* GRU state for entire
|
|
blade */
|
|
unsigned long gs_gru_base_paddr; /* Physical address of
|
|
gru segments (64) */
|
|
void *gs_gru_base_vaddr; /* Virtual address of
|
|
gru segments (64) */
|
|
unsigned char gs_gid; /* unique GRU number */
|
|
unsigned char gs_tgh_local_shift; /* used to pick TGH for
|
|
local flush */
|
|
unsigned char gs_tgh_first_remote; /* starting TGH# for
|
|
remote flush */
|
|
unsigned short gs_blade_id; /* blade of GRU */
|
|
spinlock_t gs_asid_lock; /* lock used for
|
|
assigning asids */
|
|
spinlock_t gs_lock; /* lock used for
|
|
assigning contexts */
|
|
|
|
/* -- the following are protected by the gs_asid_lock spinlock ---- */
|
|
unsigned int gs_asid; /* Next availe ASID */
|
|
unsigned int gs_asid_limit; /* Limit of available
|
|
ASIDs */
|
|
unsigned int gs_asid_gen; /* asid generation.
|
|
Inc on wrap */
|
|
|
|
/* --- the following fields are protected by the gs_lock spinlock --- */
|
|
unsigned long gs_context_map; /* bitmap to manage
|
|
contexts in use */
|
|
unsigned long gs_cbr_map; /* bitmap to manage CB
|
|
resources */
|
|
unsigned long gs_dsr_map; /* bitmap used to manage
|
|
DATA resources */
|
|
unsigned int gs_reserved_cbrs; /* Number of kernel-
|
|
reserved cbrs */
|
|
unsigned int gs_reserved_dsr_bytes; /* Bytes of kernel-
|
|
reserved dsrs */
|
|
unsigned short gs_active_contexts; /* number of contexts
|
|
in use */
|
|
struct gru_thread_state *gs_gts[GRU_NUM_CCH]; /* GTS currently using
|
|
the context */
|
|
};
|
|
|
|
/*
|
|
* This structure contains the GRU state for all the GRUs on a blade.
|
|
*/
|
|
struct gru_blade_state {
|
|
void *kernel_cb; /* First kernel
|
|
reserved cb */
|
|
void *kernel_dsr; /* First kernel
|
|
reserved DSR */
|
|
/* ---- the following are protected by the bs_lock spinlock ---- */
|
|
spinlock_t bs_lock; /* lock used for
|
|
stealing contexts */
|
|
int bs_lru_ctxnum; /* STEAL - last context
|
|
stolen */
|
|
struct gru_state *bs_lru_gru; /* STEAL - last gru
|
|
stolen */
|
|
|
|
struct gru_state bs_grus[GRU_CHIPLETS_PER_BLADE];
|
|
};
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Address Primitives
|
|
*/
|
|
#define get_tfm_for_cpu(g, c) \
|
|
((struct gru_tlb_fault_map *)get_tfm((g)->gs_gru_base_vaddr, (c)))
|
|
#define get_tfh_by_index(g, i) \
|
|
((struct gru_tlb_fault_handle *)get_tfh((g)->gs_gru_base_vaddr, (i)))
|
|
#define get_tgh_by_index(g, i) \
|
|
((struct gru_tlb_global_handle *)get_tgh((g)->gs_gru_base_vaddr, (i)))
|
|
#define get_cbe_by_index(g, i) \
|
|
((struct gru_control_block_extended *)get_cbe((g)->gs_gru_base_vaddr,\
|
|
(i)))
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Useful Macros
|
|
*/
|
|
|
|
/* Given a blade# & chiplet#, get a pointer to the GRU */
|
|
#define get_gru(b, c) (&gru_base[b]->bs_grus[c])
|
|
|
|
/* Number of bytes to save/restore when unloading/loading GRU contexts */
|
|
#define DSR_BYTES(dsr) ((dsr) * GRU_DSR_AU_BYTES)
|
|
#define CBR_BYTES(cbr) ((cbr) * GRU_HANDLE_BYTES * GRU_CBR_AU_SIZE * 2)
|
|
|
|
/* Convert a user CB number to the actual CBRNUM */
|
|
#define thread_cbr_number(gts, n) ((gts)->ts_cbr_idx[(n) / GRU_CBR_AU_SIZE] \
|
|
* GRU_CBR_AU_SIZE + (n) % GRU_CBR_AU_SIZE)
|
|
|
|
/* Convert a gid to a pointer to the GRU */
|
|
#define GID_TO_GRU(gid) \
|
|
(gru_base[(gid) / GRU_CHIPLETS_PER_BLADE] ? \
|
|
(&gru_base[(gid) / GRU_CHIPLETS_PER_BLADE]-> \
|
|
bs_grus[(gid) % GRU_CHIPLETS_PER_BLADE]) : \
|
|
NULL)
|
|
|
|
/* Scan all active GRUs in a GRU bitmap */
|
|
#define for_each_gru_in_bitmap(gid, map) \
|
|
for ((gid) = find_first_bit((map), GRU_MAX_GRUS); (gid) < GRU_MAX_GRUS;\
|
|
(gid)++, (gid) = find_next_bit((map), GRU_MAX_GRUS, (gid)))
|
|
|
|
/* Scan all active GRUs on a specific blade */
|
|
#define for_each_gru_on_blade(gru, nid, i) \
|
|
for ((gru) = gru_base[nid]->bs_grus, (i) = 0; \
|
|
(i) < GRU_CHIPLETS_PER_BLADE; \
|
|
(i)++, (gru)++)
|
|
|
|
/* Scan all active GTSs on a gru. Note: must hold ss_lock to use this macro. */
|
|
#define for_each_gts_on_gru(gts, gru, ctxnum) \
|
|
for ((ctxnum) = 0; (ctxnum) < GRU_NUM_CCH; (ctxnum)++) \
|
|
if (((gts) = (gru)->gs_gts[ctxnum]))
|
|
|
|
/* Scan each CBR whose bit is set in a TFM (or copy of) */
|
|
#define for_each_cbr_in_tfm(i, map) \
|
|
for ((i) = find_first_bit(map, GRU_NUM_CBE); \
|
|
(i) < GRU_NUM_CBE; \
|
|
(i)++, (i) = find_next_bit(map, GRU_NUM_CBE, i))
|
|
|
|
/* Scan each CBR in a CBR bitmap. Note: multiple CBRs in an allocation unit */
|
|
#define for_each_cbr_in_allocation_map(i, map, k) \
|
|
for ((k) = find_first_bit(map, GRU_CBR_AU); (k) < GRU_CBR_AU; \
|
|
(k) = find_next_bit(map, GRU_CBR_AU, (k) + 1)) \
|
|
for ((i) = (k)*GRU_CBR_AU_SIZE; \
|
|
(i) < ((k) + 1) * GRU_CBR_AU_SIZE; (i)++)
|
|
|
|
/* Scan each DSR in a DSR bitmap. Note: multiple DSRs in an allocation unit */
|
|
#define for_each_dsr_in_allocation_map(i, map, k) \
|
|
for ((k) = find_first_bit((const unsigned long *)map, GRU_DSR_AU);\
|
|
(k) < GRU_DSR_AU; \
|
|
(k) = find_next_bit((const unsigned long *)map, \
|
|
GRU_DSR_AU, (k) + 1)) \
|
|
for ((i) = (k) * GRU_DSR_AU_CL; \
|
|
(i) < ((k) + 1) * GRU_DSR_AU_CL; (i)++)
|
|
|
|
#define gseg_physical_address(gru, ctxnum) \
|
|
((gru)->gs_gru_base_paddr + ctxnum * GRU_GSEG_STRIDE)
|
|
#define gseg_virtual_address(gru, ctxnum) \
|
|
((gru)->gs_gru_base_vaddr + ctxnum * GRU_GSEG_STRIDE)
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Lock / Unlock GRU handles
|
|
* Use the "delresp" bit in the handle as a "lock" bit.
|
|
*/
|
|
|
|
/* Lock hierarchy checking enabled only in emulator */
|
|
|
|
static inline void __lock_handle(void *h)
|
|
{
|
|
while (test_and_set_bit(1, h))
|
|
cpu_relax();
|
|
}
|
|
|
|
static inline void __unlock_handle(void *h)
|
|
{
|
|
clear_bit(1, h);
|
|
}
|
|
|
|
static inline void lock_cch_handle(struct gru_context_configuration_handle *cch)
|
|
{
|
|
__lock_handle(cch);
|
|
}
|
|
|
|
static inline void unlock_cch_handle(struct gru_context_configuration_handle
|
|
*cch)
|
|
{
|
|
__unlock_handle(cch);
|
|
}
|
|
|
|
static inline void lock_tgh_handle(struct gru_tlb_global_handle *tgh)
|
|
{
|
|
__lock_handle(tgh);
|
|
}
|
|
|
|
static inline void unlock_tgh_handle(struct gru_tlb_global_handle *tgh)
|
|
{
|
|
__unlock_handle(tgh);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Function prototypes & externs
|
|
*/
|
|
struct gru_unload_context_req;
|
|
|
|
extern struct vm_operations_struct gru_vm_ops;
|
|
extern struct device *grudev;
|
|
|
|
extern struct gru_vma_data *gru_alloc_vma_data(struct vm_area_struct *vma,
|
|
int tsid);
|
|
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 void gru_unload_context(struct gru_thread_state *gts, int savestate);
|
|
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 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_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 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,
|
|
int dsr_au_count, char *dsmap);
|
|
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 void gru_flush_tlb_range(struct gru_mm_struct *gms, unsigned long start,
|
|
unsigned long len);
|
|
|
|
extern unsigned long gru_options;
|
|
|
|
#endif /* __GRUTABLES_H__ */
|