[PATCH 07/10] drm/i915: move request slabs to direct module init/exit
Daniel Vetter
daniel.vetter at ffwll.ch
Fri Jul 23 19:29:31 UTC 2021
With the global kmem_cache shrink infrastructure gone there's nothing
special and we can convert them over.
I'm doing this split up into each patch because there's quite a bit of
noise with removing the static global.slab_requests|execute_cbs to just a
slab_requests|execute_cbs.
Cc: Jason Ekstrand <jason at jlekstrand.net>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
drivers/gpu/drm/i915/i915_globals.c | 2 --
drivers/gpu/drm/i915/i915_pci.c | 2 ++
drivers/gpu/drm/i915/i915_request.c | 47 ++++++++++++-----------------
drivers/gpu/drm/i915/i915_request.h | 3 ++
4 files changed, 24 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_globals.c b/drivers/gpu/drm/i915/i915_globals.c
index 40a592fbc3e0..8fffa8d93bc5 100644
--- a/drivers/gpu/drm/i915/i915_globals.c
+++ b/drivers/gpu/drm/i915/i915_globals.c
@@ -8,7 +8,6 @@
#include <linux/workqueue.h>
#include "i915_globals.h"
-#include "i915_request.h"
#include "i915_scheduler.h"
#include "i915_vma.h"
@@ -30,7 +29,6 @@ static void __i915_globals_cleanup(void)
}
static __initconst int (* const initfn[])(void) = {
- i915_global_request_init,
i915_global_scheduler_init,
i915_global_vma_init,
};
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 2334eb3e9abb..bb2bd12fb8c2 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -35,6 +35,7 @@
#include "i915_drv.h"
#include "gem/i915_gem_context.h"
#include "gem/i915_gem_object.h"
+#include "i915_request.h"
#include "i915_perf.h"
#include "i915_globals.h"
#include "i915_selftest.h"
@@ -1302,6 +1303,7 @@ static const struct {
{ i915_context_module_init, i915_context_module_exit },
{ i915_gem_context_module_init, i915_gem_context_module_exit },
{ i915_objects_module_init, i915_objects_module_exit },
+ { i915_request_module_init, i915_request_module_exit },
{ i915_globals_init, i915_globals_exit },
{ i915_mock_selftests, NULL },
{ i915_pmu_init, i915_pmu_exit },
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 6594cb2f8ebd..69152369ea00 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -42,7 +42,6 @@
#include "i915_active.h"
#include "i915_drv.h"
-#include "i915_globals.h"
#include "i915_trace.h"
#include "intel_pm.h"
@@ -52,11 +51,8 @@ struct execute_cb {
struct i915_request *signal;
};
-static struct i915_global_request {
- struct i915_global base;
- struct kmem_cache *slab_requests;
- struct kmem_cache *slab_execute_cbs;
-} global;
+struct kmem_cache *slab_requests;
+struct kmem_cache *slab_execute_cbs;
static const char *i915_fence_get_driver_name(struct dma_fence *fence)
{
@@ -107,7 +103,7 @@ static signed long i915_fence_wait(struct dma_fence *fence,
struct kmem_cache *i915_request_slab_cache(void)
{
- return global.slab_requests;
+ return slab_requests;
}
static void i915_fence_release(struct dma_fence *fence)
@@ -159,7 +155,7 @@ static void i915_fence_release(struct dma_fence *fence)
!cmpxchg(&rq->engine->request_pool, NULL, rq))
return;
- kmem_cache_free(global.slab_requests, rq);
+ kmem_cache_free(slab_requests, rq);
}
const struct dma_fence_ops i915_fence_ops = {
@@ -176,7 +172,7 @@ static void irq_execute_cb(struct irq_work *wrk)
struct execute_cb *cb = container_of(wrk, typeof(*cb), work);
i915_sw_fence_complete(cb->fence);
- kmem_cache_free(global.slab_execute_cbs, cb);
+ kmem_cache_free(slab_execute_cbs, cb);
}
static __always_inline void
@@ -514,7 +510,7 @@ __await_execution(struct i915_request *rq,
if (i915_request_is_active(signal))
return 0;
- cb = kmem_cache_alloc(global.slab_execute_cbs, gfp);
+ cb = kmem_cache_alloc(slab_execute_cbs, gfp);
if (!cb)
return -ENOMEM;
@@ -868,7 +864,7 @@ request_alloc_slow(struct intel_timeline *tl,
rq = list_first_entry(&tl->requests, typeof(*rq), link);
i915_request_retire(rq);
- rq = kmem_cache_alloc(global.slab_requests,
+ rq = kmem_cache_alloc(slab_requests,
gfp | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
if (rq)
return rq;
@@ -881,7 +877,7 @@ request_alloc_slow(struct intel_timeline *tl,
retire_requests(tl);
out:
- return kmem_cache_alloc(global.slab_requests, gfp);
+ return kmem_cache_alloc(slab_requests, gfp);
}
static void __i915_request_ctor(void *arg)
@@ -942,7 +938,7 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
*
* Do not use kmem_cache_zalloc() here!
*/
- rq = kmem_cache_alloc(global.slab_requests,
+ rq = kmem_cache_alloc(slab_requests,
gfp | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
if (unlikely(!rq)) {
rq = request_alloc_slow(tl, &ce->engine->request_pool, gfp);
@@ -1029,7 +1025,7 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
GEM_BUG_ON(!list_empty(&rq->sched.waiters_list));
err_free:
- kmem_cache_free(global.slab_requests, rq);
+ kmem_cache_free(slab_requests, rq);
err_unreserve:
intel_context_unpin(ce);
return ERR_PTR(ret);
@@ -2084,19 +2080,15 @@ void i915_request_show(struct drm_printer *m,
#include "selftests/i915_request.c"
#endif
-static void i915_global_request_exit(void)
+void i915_request_module_exit(void)
{
- kmem_cache_destroy(global.slab_execute_cbs);
- kmem_cache_destroy(global.slab_requests);
+ kmem_cache_destroy(slab_execute_cbs);
+ kmem_cache_destroy(slab_requests);
}
-static struct i915_global_request global = { {
- .exit = i915_global_request_exit,
-} };
-
-int __init i915_global_request_init(void)
+int __init i915_request_module_init(void)
{
- global.slab_requests =
+ slab_requests =
kmem_cache_create("i915_request",
sizeof(struct i915_request),
__alignof__(struct i915_request),
@@ -2104,20 +2096,19 @@ int __init i915_global_request_init(void)
SLAB_RECLAIM_ACCOUNT |
SLAB_TYPESAFE_BY_RCU,
__i915_request_ctor);
- if (!global.slab_requests)
+ if (!slab_requests)
return -ENOMEM;
- global.slab_execute_cbs = KMEM_CACHE(execute_cb,
+ slab_execute_cbs = KMEM_CACHE(execute_cb,
SLAB_HWCACHE_ALIGN |
SLAB_RECLAIM_ACCOUNT |
SLAB_TYPESAFE_BY_RCU);
- if (!global.slab_execute_cbs)
+ if (!slab_execute_cbs)
goto err_requests;
- i915_global_register(&global.base);
return 0;
err_requests:
- kmem_cache_destroy(global.slab_requests);
+ kmem_cache_destroy(slab_requests);
return -ENOMEM;
}
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 717e5b292046..a79480f07f04 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -647,4 +647,7 @@ bool
i915_request_active_engine(struct i915_request *rq,
struct intel_engine_cs **active);
+void i915_request_module_exit(void);
+int i915_request_module_init(void);
+
#endif /* I915_REQUEST_H */
--
2.32.0
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