[v3,1/7] drm/i915: support creating LMEM objects

Message ID	20191023132100.9578-1-matthew.auld@intel.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=TcPF=YQ=lists.freedesktop.org=intel-gfx-bounces@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C67A2173B From: Matthew Auld <matthew.auld@intel.com> To: intel-gfx@lists.freedesktop.org Date: Wed, 23 Oct 2019 14:20:54 +0100 Message-Id: <20191023132100.9578-1-matthew.auld@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 1/7] drm/i915: support creating LMEM objects Precedence: list Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
Series	[v3,1/7] drm/i915: support creating LMEM objects \| expand [v3,1/7] drm/i915: support creating LMEM objects [v3,2/7] drm/i915: setup io-mapping for LMEM [v3,3/7] drm/i915/lmem: support kernel mapping [v3,4/7] drm/i915/selftests: add write-dword test for LMEM [v3,5/7] drm/i915/selftests: extend coverage to include LMEM huge-pages [v3,6/7] drm/i915/selftests: prefer random sizes for the huge-GTT-page smoke tests [v3,7/7] drm/i915/selftests: add sanity selftest for huge-GTT-pages

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 2fd4bed188e5..308f2b1c03bc 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -120,6 +120,7 @@ gem-y += \ gem/i915_gem_internal.o \ gem/i915_gem_object.o \ gem/i915_gem_object_blt.o \ + gem/i915_gem_lmem.o \ gem/i915_gem_mman.o \ gem/i915_gem_pages.o \ gem/i915_gem_phys.o \ @@ -148,6 +149,7 @@ i915-y += \ i915_scheduler.o \ i915_trace_points.o \ i915_vma.o \ + intel_region_lmem.o \ intel_wopcm.o # general-purpose microcontroller (GuC) support diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c new file mode 100644 index 000000000000..3beec9b38e83 --- /dev/null +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2019 Intel Corporation + */ + +#include "intel_memory_region.h" +#include "gem/i915_gem_region.h" +#include "gem/i915_gem_lmem.h" +#include "i915_drv.h" + +const struct drm_i915_gem_object_ops i915_gem_lmem_obj_ops = { + .get_pages = i915_gem_object_get_pages_buddy, + .put_pages = i915_gem_object_put_pages_buddy, + .release = i915_gem_object_release_memory_region, +}; + +bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) +{ + return obj->ops == &i915_gem_lmem_obj_ops; +} + +struct drm_i915_gem_object * +i915_gem_object_create_lmem(struct drm_i915_private *i915, + resource_size_t size, + unsigned int flags) +{ + return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], + size, flags); +} + + struct drm_i915_gem_object * +__i915_gem_lmem_object_create(struct intel_memory_region *mem, + resource_size_t size, + unsigned int flags) +{ + static struct lock_class_key lock_class; + struct drm_i915_private *i915 = mem->i915; + struct drm_i915_gem_object *obj; + + if (size > BIT(mem->mm.max_order) * mem->mm.chunk_size) + return ERR_PTR(-E2BIG); + + obj = i915_gem_object_alloc(); + if (!obj) + return ERR_PTR(-ENOMEM); + + drm_gem_private_object_init(&i915->drm, &obj->base, size); + i915_gem_object_init(obj, &i915_gem_lmem_obj_ops, &lock_class); + + obj->read_domains = I915_GEM_DOMAIN_WC | I915_GEM_DOMAIN_GTT; + + i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); + + i915_gem_object_init_memory_region(obj, mem, flags); + + return obj; +} diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h new file mode 100644 index 000000000000..fc3f15580fe3 --- /dev/null +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2019 Intel Corporation + */ + +#ifndef __I915_GEM_LMEM_H +#define __I915_GEM_LMEM_H + +#include <linux/types.h> + +struct drm_i915_private; +struct drm_i915_gem_object; +struct intel_memory_region; + +extern const struct drm_i915_gem_object_ops i915_gem_lmem_obj_ops; + +bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj); + +struct drm_i915_gem_object * +i915_gem_object_create_lmem(struct drm_i915_private *i915, + resource_size_t size, + unsigned int flags); + +struct drm_i915_gem_object * +__i915_gem_lmem_object_create(struct intel_memory_region *mem, + resource_size_t size, + unsigned int flags); + +#endif /* !__I915_GEM_LMEM_H */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8882c0908c3b..79a87e706405 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -101,6 +101,8 @@ #include "i915_vma.h" #include "i915_irq.h" +#include "intel_region_lmem.h" + #include "intel_gvt.h" /* General customization: @@ -1781,6 +1783,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc) #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i)) +#define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM) #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc) diff --git a/drivers/gpu/drm/i915/intel_region_lmem.c b/drivers/gpu/drm/i915/intel_region_lmem.c new file mode 100644 index 000000000000..199532056e1b --- /dev/null +++ b/drivers/gpu/drm/i915/intel_region_lmem.c @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2019 Intel Corporation + */ + +#include "i915_drv.h" +#include "intel_memory_region.h" +#include "gem/i915_gem_lmem.h" +#include "gem/i915_gem_region.h" +#include "intel_region_lmem.h" + +const struct intel_memory_region_ops intel_region_lmem_ops = { + .init = intel_memory_region_init_buddy, + .release = intel_memory_region_release_buddy, + .create_object = __i915_gem_lmem_object_create, +}; diff --git a/drivers/gpu/drm/i915/intel_region_lmem.h b/drivers/gpu/drm/i915/intel_region_lmem.h new file mode 100644 index 000000000000..ed2a3bab6443 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_region_lmem.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2019 Intel Corporation + */ + +#ifndef __INTEL_REGION_LMEM_H +#define __INTEL_REGION_LMEM_H + +extern const struct intel_memory_region_ops intel_region_lmem_ops; + +#endif /* !__INTEL_REGION_LMEM_H */ diff --git a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h index 00a063730bc3..4b3cac73e291 100644 --- a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h +++ b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h @@ -33,6 +33,7 @@ selftest(gem_contexts, i915_gem_context_live_selftests) selftest(blt, i915_gem_object_blt_live_selftests) selftest(client, i915_gem_client_blt_live_selftests) selftest(reset, intel_reset_live_selftests) +selftest(memory_region, intel_memory_region_live_selftests) selftest(hangcheck, intel_hangcheck_live_selftests) selftest(execlists, intel_execlists_live_selftests) selftest(guc, intel_guc_live_selftest) diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c index 56091e7e599e..617a35cfac2f 100644 --- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c +++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c @@ -11,8 +11,10 @@ #include "mock_gem_device.h" #include "mock_region.h" +#include "gem/i915_gem_lmem.h" #include "gem/i915_gem_region.h" #include "gem/selftests/mock_context.h" +#include "gt/intel_gt.h" #include "selftests/i915_random.h" static void close_objects(struct intel_memory_region *mem, @@ -252,6 +254,27 @@ static int igt_mock_contiguous(void *arg) return err; } +static int igt_lmem_create(void *arg) +{ + struct drm_i915_private *i915 = arg; + struct drm_i915_gem_object *obj; + int err = 0; + + obj = i915_gem_object_create_lmem(i915, PAGE_SIZE, 0); + if (IS_ERR(obj)) + return PTR_ERR(obj); + + err = i915_gem_object_pin_pages(obj); + if (err) + goto out_put; + + i915_gem_object_unpin_pages(obj); +out_put: + i915_gem_object_put(obj); + + return err; +} + int intel_memory_region_mock_selftests(void) { static const struct i915_subtest tests[] = { @@ -280,3 +303,20 @@ int intel_memory_region_mock_selftests(void) drm_dev_put(&i915->drm); return err; } + +int intel_memory_region_live_selftests(struct drm_i915_private *i915) +{ + static const struct i915_subtest tests[] = { + SUBTEST(igt_lmem_create), + }; + + if (!HAS_LMEM(i915)) { + pr_info("device lacks LMEM support, skipping\n"); + return 0; + } + + if (intel_gt_is_wedged(&i915->gt)) + return 0; + + return i915_live_subtests(tests, i915); +}

[v3,1/7] drm/i915: support creating LMEM objects

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Patch