From 47514ac752efdf4ff3ca1edeed8a811dc56a082c Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 27 Jul 2021 14:10:33 +0200 Subject: [PATCH] drm/i915: move request slabs to direct module init/exit 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. v2: Make slab static (Jason, 0day) Reviewed-by: Jason Ekstrand Cc: Jason Ekstrand Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210727121037.2041102-7-daniel.vetter@ffwll.ch --- 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 40a592fbc3e0b..8fffa8d93bc58 100644 --- a/drivers/gpu/drm/i915/i915_globals.c +++ b/drivers/gpu/drm/i915/i915_globals.c @@ -8,7 +8,6 @@ #include #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 337c30ff0d3c1..028a12cc8eb87 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" @@ -1268,6 +1269,7 @@ 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 1f1d4a6a0effe..ce446716d0929 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; +static struct kmem_cache *slab_requests; +static 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) @@ -140,7 +136,7 @@ static void i915_fence_release(struct dma_fence *fence) intel_context_put(rq->context); - kmem_cache_free(global.slab_requests, rq); + kmem_cache_free(slab_requests, rq); } const struct dma_fence_ops i915_fence_ops = { @@ -157,7 +153,7 @@ 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 @@ -462,7 +458,7 @@ __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; @@ -808,7 +804,7 @@ 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; @@ -821,7 +817,7 @@ 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) @@ -882,7 +878,7 @@ __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); @@ -984,7 +980,7 @@ err_unwind: err_free: intel_context_put(ce); - kmem_cache_free(global.slab_requests, rq); + kmem_cache_free(slab_requests, rq); err_unreserve: intel_context_unpin(ce); return ERR_PTR(ret); @@ -2080,19 +2076,15 @@ enum i915_request_state i915_test_request_state(struct i915_request *rq) #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), @@ -2100,20 +2092,19 @@ 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 e6a0e0ebc9aa3..1bc1349ba3c25 100644 --- a/drivers/gpu/drm/i915/i915_request.h +++ b/drivers/gpu/drm/i915/i915_request.h @@ -668,4 +668,7 @@ enum i915_request_state { enum i915_request_state i915_test_request_state(struct i915_request *rq); +void i915_request_module_exit(void); +int i915_request_module_init(void); + #endif /* I915_REQUEST_H */ -- 2.39.5