The patch titled
gru: change context load and unload
has been added to the -mm tree. Its filename is
gru-change-context-load-and-unload.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: gru: change context load and unload
From: Jack Steiner <steiner@xxxxxxx>
Remove "static" from the functions for loading/unloading GRU contexts.
These functions will be called from other GRU files. Fix bug in unlocking
gru context.
Signed-off-by: Jack Steiner <steiner@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/misc/sgi-gru/grufault.c | 4 ++--
drivers/misc/sgi-gru/grumain.c | 10 +++++-----
drivers/misc/sgi-gru/grutables.h | 4 ++++
3 files changed, 11 insertions(+), 7 deletions(-)
diff -puN drivers/misc/sgi-gru/grufault.c~gru-change-context-load-and-unload drivers/misc/sgi-gru/grufault.c
--- a/drivers/misc/sgi-gru/grufault.c~gru-change-context-load-and-unload
+++ a/drivers/misc/sgi-gru/grufault.c
@@ -558,8 +558,8 @@ int gru_handle_user_call_os(unsigned lon
* CCH may contain stale data if ts_force_cch_reload is set.
*/
if (gts->ts_gru && gts->ts_force_cch_reload) {
- gru_update_cch(gts, 0);
gts->ts_force_cch_reload = 0;
+ gru_update_cch(gts, 0);
}
ret = -EAGAIN;
@@ -644,7 +644,7 @@ static int gru_unload_all_contexts(void)
if (gts && mutex_trylock(>s->ts_ctxlock)) {
spin_unlock(&gru->gs_lock);
gru_unload_context(gts, 1);
- gru_unlock_gts(gts);
+ mutex_unlock(>s->ts_ctxlock);
spin_lock(&gru->gs_lock);
}
}
diff -puN drivers/misc/sgi-gru/grumain.c~gru-change-context-load-and-unload drivers/misc/sgi-gru/grumain.c
--- a/drivers/misc/sgi-gru/grumain.c~gru-change-context-load-and-unload
+++ a/drivers/misc/sgi-gru/grumain.c
@@ -533,7 +533,7 @@ void gru_unload_context(struct gru_threa
* Load a GRU context by copying it from the thread data structure in memory
* to the GRU.
*/
-static void gru_load_context(struct gru_thread_state *gts)
+void gru_load_context(struct gru_thread_state *gts)
{
struct gru_state *gru = gts->ts_gru;
struct gru_context_configuration_handle *cch;
@@ -600,8 +600,8 @@ int gru_update_cch(struct gru_thread_sta
gts->ts_tlb_int_select = gru_cpu_fault_map_id();
cch->tlb_int_select = gru_cpu_fault_map_id();
cch->tfm_fault_bit_enable =
- (gts->ts_user_options == GRU_OPT_MISS_FMM_POLL
- || gts->ts_user_options == GRU_OPT_MISS_FMM_INTR);
+ (gts->ts_user_options == GRU_OPT_MISS_FMM_POLL
+ || gts->ts_user_options == GRU_OPT_MISS_FMM_INTR);
} else {
for (i = 0; i < 8; i++)
cch->asid[i] = 0;
@@ -645,7 +645,7 @@ static int gru_retarget_intr(struct gru_
#define next_gru(b, g) (((g) < &(b)->bs_grus[GRU_CHIPLETS_PER_BLADE - 1]) ? \
((g)+1) : &(b)->bs_grus[0])
-static void gru_steal_context(struct gru_thread_state *gts, int blade_id)
+void gru_steal_context(struct gru_thread_state *gts, int blade_id)
{
struct gru_blade_state *blade;
struct gru_state *gru, *gru0;
@@ -711,7 +711,7 @@ static void gru_steal_context(struct gru
/*
* Scan the GRUs on the local blade & assign a GRU context.
*/
-static struct gru_state *gru_assign_gru_context(struct gru_thread_state *gts,
+struct gru_state *gru_assign_gru_context(struct gru_thread_state *gts,
int blade)
{
struct gru_state *gru, *grux;
diff -puN drivers/misc/sgi-gru/grutables.h~gru-change-context-load-and-unload drivers/misc/sgi-gru/grutables.h
--- a/drivers/misc/sgi-gru/grutables.h~gru-change-context-load-and-unload
+++ a/drivers/misc/sgi-gru/grutables.h
@@ -611,6 +611,10 @@ extern struct gru_thread_state *gru_find
*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);
_
Patches currently in -mm which might be from steiner@xxxxxxx are
gru-bug-fixes-for-gru-exception-handling.patch
gru-dump-chiplet-state.patch
gru-dynamic-allocation-of-kernel-contexts.patch
gru-change-context-load-and-unload.patch
gru-support-cch_allocate-for-kernel-threads.patch
gru-change-resource-assignment-for-kernel-threads.patch
gru-support-contexts-with-zero-dsrs-or-cbrs.patch
gru-fix-handling-of-mesq-failures.patch
gru-check-context-state-on-reload.patch
gru-support-instruction-completion-interrupts.patch
gru-support-for-asynchronous-gru-instructions.patch
gru-update-gru-kernel-self-tests.patch
gru-update-to-rev-09-of-gru-spec.patch
--
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