[v3,01/15] drm/i915: add io_size plumbing

Message ID	20220211113437.874691-2-matthew.auld@intel.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <dri-devel-bounces@lists.freedesktop.org> From: Matthew Auld <matthew.auld@intel.com> To: intel-gfx@lists.freedesktop.org Subject: [PATCH v3 01/15] drm/i915: add io_size plumbing Date: Fri, 11 Feb 2022 11:34:23 +0000 Message-Id: <20220211113437.874691-2-matthew.auld@intel.com> In-Reply-To: <20220211113437.874691-1-matthew.auld@intel.com> References: <20220211113437.874691-1-matthew.auld@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: list Cc: =?utf-8?q?Thomas_Hellstr=C3=B6m?= <thomas.hellstrom@linux.intel.com>, dri-devel@lists.freedesktop.org, Nirmoy Das <nirmoy.das@intel.com> Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
Series	Initial support for small BAR recovery \| expand [v3,00/15] Initial support for small BAR recovery [v3,01/15] drm/i915: add io_size plumbing [v3,02/15] drm/i915/ttm: require mappable by default [v3,03/15] drm/i915: add I915_BO_ALLOC_GPU_ONLY [v3,04/15] drm/i915/buddy: track available visible size [v3,05/15] drm/i915/buddy: adjust res->start [v3,06/15] drm/i915/buddy: tweak 2big check [v3,07/15] drm/i915/selftests: mock test io_size [v3,08/15] drm/i915/ttm: make eviction mappable aware [v3,09/15] drm/i915/ttm: mappable migration on fault [v3,10/15] drm/i915/selftests: exercise mmap migration [v3,11/15] drm/i915/selftests: handle allocation failures [v3,12/15] drm/i915/create: apply ALLOC_GPU_ONLY by default [v3,13/15] drm/i915/uapi: add NEEDS_CPU_ACCESS hint [v3,14/15] drm/i915/uapi: forbid ALLOC_GPU_ONLY for error capture [v3,15/15] drm/i915/lmem: don't treat small BAR as an error

diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 41d279db2be6..244acf462065 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -248,7 +248,7 @@ static int intelfb_create(struct drm_fb_helper *helper, struct intel_memory_region *mem = obj->mm.region; info->apertures->ranges[0].base = mem->io_start; - info->apertures->ranges[0].size = mem->total; + info->apertures->ranges[0].size = mem->io_size; /* Use fbdev's framebuffer from lmem for discrete */ info->fix.smem_start = diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c index 6c57b0a79c8a..a9aca11cedbb 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c @@ -696,7 +696,7 @@ struct intel_memory_region *i915_gem_shmem_setup(struct drm_i915_private *i915, { return intel_memory_region_create(i915, 0, totalram_pages() << PAGE_SHIFT, - PAGE_SIZE, 0, + PAGE_SIZE, 0, 0, type, instance, &shmem_region_ops); } diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c index 1de73a644965..b79f5f5e7df0 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -491,6 +491,7 @@ static int i915_gem_init_stolen(struct intel_memory_region *mem) /* Exclude the reserved region from driver use */ mem->region.end = reserved_base - 1; + mem->io_size = resource_size(&mem->region); /* It is possible for the reserved area to end before the end of stolen * memory, so just consider the start. */ @@ -747,7 +748,7 @@ static int init_stolen_lmem(struct intel_memory_region *mem) if (!io_mapping_init_wc(&mem->iomap, mem->io_start, - resource_size(&mem->region))) + mem->io_size)) return -EIO; /* @@ -802,7 +803,8 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type, I915_GTT_PAGE_SIZE_4K; mem = intel_memory_region_create(i915, lmem_base, lmem_size, - min_page_size, io_start, + min_page_size, + io_start, lmem_size, type, instance, &i915_region_stolen_lmem_ops); if (IS_ERR(mem)) @@ -833,7 +835,7 @@ i915_gem_stolen_smem_setup(struct drm_i915_private *i915, u16 type, mem = intel_memory_region_create(i915, intel_graphics_stolen_res.start, resource_size(&intel_graphics_stolen_res), - PAGE_SIZE, 0, type, instance, + PAGE_SIZE, 0, 0, type, instance, &i915_region_stolen_smem_ops); if (IS_ERR(mem)) return mem; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index 1eb2fd81c5b6..e9399f7b3e67 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -1101,7 +1101,7 @@ i915_gem_ttm_system_setup(struct drm_i915_private *i915, mr = intel_memory_region_create(i915, 0, totalram_pages() << PAGE_SHIFT, - PAGE_SIZE, 0, + PAGE_SIZE, 0, 0, type, instance, &ttm_system_region_ops); if (IS_ERR(mr)) diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c index f36191ebf964..42db9cd30978 100644 --- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c +++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c @@ -499,7 +499,7 @@ static int igt_mock_memory_region_huge_pages(void *arg) int bit; int err = 0; - mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0); + mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0, 0); if (IS_ERR(mem)) { pr_err("%s failed to create memory region\n", __func__); return PTR_ERR(mem); diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index cb3f66707b21..01838b8ce4c7 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -91,7 +91,7 @@ region_lmem_init(struct intel_memory_region *mem) if (!io_mapping_init_wc(&mem->iomap, mem->io_start, - resource_size(&mem->region))) { + mem->io_size)) { ret = -EIO; goto out_no_io; } @@ -144,6 +144,7 @@ intel_gt_setup_fake_lmem(struct intel_gt *gt) mappable_end, PAGE_SIZE, io_start, + mappable_end, INTEL_MEMORY_LOCAL, 0, &intel_region_lmem_ops); @@ -220,6 +221,7 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) lmem_size, min_page_size, io_start, + lmem_size, INTEL_MEMORY_LOCAL, 0, &intel_region_lmem_ops); @@ -233,6 +235,8 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) drm_dbg(&i915->drm, "Local memory: %pR\n", &mem->region); drm_dbg(&i915->drm, "Local memory IO start: %pa\n", &mem->io_start); + drm_info(&i915->drm, "Local memory IO size: %pa\n", + &mem->io_size); drm_info(&i915->drm, "Local memory available: %pa\n", &lmem_size); diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c index c70d7e286a51..595e2489c23e 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.c +++ b/drivers/gpu/drm/i915/intel_memory_region.c @@ -97,7 +97,7 @@ static int iomemtest(struct intel_memory_region *mem, bool test_all, const void *caller) { - resource_size_t last = resource_size(&mem->region) - PAGE_SIZE; + resource_size_t last = mem->io_size - PAGE_SIZE; resource_size_t page; int err; @@ -205,6 +205,8 @@ static int intel_memory_region_memtest(struct intel_memory_region *mem, if (!mem->io_start) return 0; + WARN_ON_ONCE(!mem->io_size); + if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM) || i915->params.memtest) err = iomemtest(mem, i915->params.memtest, caller); @@ -217,6 +219,7 @@ intel_memory_region_create(struct drm_i915_private *i915, resource_size_t size, resource_size_t min_page_size, resource_size_t io_start, + resource_size_t io_size, u16 type, u16 instance, const struct intel_memory_region_ops *ops) @@ -231,6 +234,7 @@ intel_memory_region_create(struct drm_i915_private *i915, mem->i915 = i915; mem->region = (struct resource)DEFINE_RES_MEM(start, size); mem->io_start = io_start; + mem->io_size = io_size; mem->min_page_size = min_page_size; mem->ops = ops; mem->total = size; diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h index 5625c9c38993..459051ce0c91 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.h +++ b/drivers/gpu/drm/i915/intel_memory_region.h @@ -71,6 +71,7 @@ struct intel_memory_region { struct drm_mm_node fake_mappable; resource_size_t io_start; + resource_size_t io_size; resource_size_t min_page_size; resource_size_t total; resource_size_t avail; @@ -103,6 +104,7 @@ intel_memory_region_create(struct drm_i915_private *i915, resource_size_t size, resource_size_t min_page_size, resource_size_t io_start, + resource_size_t io_size, u16 type, u16 instance, const struct intel_memory_region_ops *ops); diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c index 7acba1d2135e..247f65f02bbf 100644 --- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c +++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c @@ -170,7 +170,7 @@ static int igt_mock_reserve(void *arg) if (!order) return 0; - mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0); + mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0, 0); if (IS_ERR(mem)) { pr_err("failed to create memory region\n"); err = PTR_ERR(mem); @@ -383,7 +383,7 @@ static int igt_mock_splintered_region(void *arg) */ size = (SZ_4G - 1) & PAGE_MASK; - mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0); + mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0, 0); if (IS_ERR(mem)) return PTR_ERR(mem); @@ -471,7 +471,7 @@ static int igt_mock_max_segment(void *arg) */ size = SZ_8G; - mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0); + mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0, 0); if (IS_ERR(mem)) return PTR_ERR(mem); @@ -1188,7 +1188,7 @@ int intel_memory_region_mock_selftests(void) if (!i915) return -ENOMEM; - mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0); + mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0, 0); if (IS_ERR(mem)) { pr_err("failed to create memory region\n"); err = PTR_ERR(mem); diff --git a/drivers/gpu/drm/i915/selftests/mock_region.c b/drivers/gpu/drm/i915/selftests/mock_region.c index 19bff8afcaaa..467eeae6d5f0 100644 --- a/drivers/gpu/drm/i915/selftests/mock_region.c +++ b/drivers/gpu/drm/i915/selftests/mock_region.c @@ -107,7 +107,8 @@ mock_region_create(struct drm_i915_private *i915, resource_size_t start, resource_size_t size, resource_size_t min_page_size, - resource_size_t io_start) + resource_size_t io_start, + resource_size_t io_size) { int instance = ida_alloc_max(&i915->selftest.mock_region_instances, TTM_NUM_MEM_TYPES - TTM_PL_PRIV - 1, @@ -117,6 +118,7 @@ mock_region_create(struct drm_i915_private *i915, return ERR_PTR(instance); return intel_memory_region_create(i915, start, size, min_page_size, - io_start, INTEL_MEMORY_MOCK, instance, + io_start, io_size, + INTEL_MEMORY_MOCK, instance, &mock_region_ops); } diff --git a/drivers/gpu/drm/i915/selftests/mock_region.h b/drivers/gpu/drm/i915/selftests/mock_region.h index 329bf74dfaca..e36c3a433551 100644 --- a/drivers/gpu/drm/i915/selftests/mock_region.h +++ b/drivers/gpu/drm/i915/selftests/mock_region.h @@ -16,6 +16,7 @@ mock_region_create(struct drm_i915_private *i915, resource_size_t start, resource_size_t size, resource_size_t min_page_size, - resource_size_t io_start); + resource_size_t io_start, + resource_size_t io_size); #endif /* !__MOCK_REGION_H */

[v3,01/15] drm/i915: add io_size plumbing

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