Linaro-mm-sig

linaro-mm-sig@lists.linaro.org

22 participants
7040 discussions

How To Obtain A Belgian Residence Permit Easily and Quickly

by lopezolivert1＠gmail.com

Need a passport, visa, ID card, residence permit, or driving license—fast and hassle-free? Our global service helps individuals worldwide obtain official documents without long delays, complicated tests, or bureaucratic stress. Whether you’ve failed before, are short on time, or need urgent assistance, we deliver secure, verified documents tailored to your needs. Trusted by professionals, travelers, expats, and busy individuals across the world. Get started today and experience a smooth, discreet, and professional process. Contact us https://documentsfolders.com/ Passport Assistance – Fast Applications, Renewals & Replacements ( https://documentsfolders.com/passports/ ) Buy ID Cards, EU ID cards ( https://documentsfolders.com/id-cards/ ) Buy international driver's license, commercial driver's license, california driver's license, renew driver's license, class c driver's license ( https://documentsfolders.com/drivers-license/ ) Obtain Fishing License, florida fishing license, texas fishing license ( https://documentsfolders.com/fishing-license/ ) Obtain EU residence permit, temporary resident permit, green card, green card renewal, permanent resident ( https://documentsfolders.com/residence-card/ ) do you need a license to drive a boat? how to get a boating license, florida boating license, Buy boating license ( https://documentsfolders.com/boat-license/ ) green card renewal, green card news, amex green card, Buy US green card ( https://documentsfolders.com/green-card/ ) vise grip, visa provisioning service, h1b visa lottery results, us visa india wait time, ( https://documentsfolders.com/visas/ ) Buy Social Security, social security login, social security office near me, social security lawyers near me, retroactive social security payments, doge social security data access blocked ( https://documentsfolders.com/social-security/ ) google it support professional certificate, ielts test fee, ielts test cost, pte academic test, pte practice test, Degree certificate, Toefl certificate. ( https://documentsfolders.com/certificates/ ) Obtain German Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-german-residence-permit/ ) Obtain Italian Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-italian-residence-permit/ ) How To Obtain A Luxembourg Residence Permit Simple and Quick ( https://documentsfolders.com/buy-a-luxembourg-residence-permit/ ) How To Obtain A Maltese Residence Permit Simple and Quick ( https://documentsfolders.com/buy-a-maltese-residence-permit/ ) Fast Way to Getting a Cypriot Residence Permit ( https://documentsfolders.com/buy-a-cypriot-residence-permit/ ) Fast Way to Getting a Swiss Residence Permit ( https://documentsfolders.com/buy-a-swiss-residence-permit/ ) Fast Way to Getting a Norwegian Residence Permit ( https://documentsfolders.com/buy-a-norwegian-residence-permit/ ) Fast Way to Getting an Icelandic Residence Permit ( https://documentsfolders.com/buy-an-icelandic-residence-permit/ ) Fast Way to Getting a Liechtenstein Residence Permit ( https://documentsfolders.com/buy-a-liechtenstein-residence-permit/ ) Fast Way to Getting a Liechtenstein Residence Permit ( https://documentsfolders.com/buy-a-liechtenstein-residence-permit/ ) How To Obtain A Bulgarian Residence Permit Simple and Quick ( https://documentsfolders.com/buy-a-bulgarian-residence-permit/ ) How To Obtain A Hungarian Residence Permit Simple and Quick ( https://documentsfolders.com/buy-a-hungarian-residence-permit/ ) How To Obtain A Slovak Residence Permit Simple and Quick ( https://documentsfolders.com/buy-a-slovak-residence-permit/ ) How To Obtain a Czech Republic Residence Permit Simple and Quick ( https://documentsfolders.com/buy-a-czech-republic-residence/ ) How To Obtain an Irish Residence Permit Simple and Quick ( https://documentsfolders.com/obtain-irish-residence-permit/ ) How To Obtain A Greek Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-greek-residence-permit/ ) How To Obtain A Finnish Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-finnish-residence-permit/ ) How To Obtain A Danish Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-danish-residence-permit/ ) How To Obtain A Swedish Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-swedish-residence-permit/ ) How To Obtain an Austrian Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-an-austrian-residence-permit/ ) How To Obtain A Dutch Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-dutch-residence-permit/ ) How To Obtain A Belgian Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-belgian-residence-permit/ ) How To Obtain A Portuguese Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-portuguese-residence-permit/ ) How To Get Spanish Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-a-spanish-residence-permit/ ) How To Get a French Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-french-residence-permit/ ) How To Get a Polish Residence Permit Easily and Quickly ( https://documentsfolders.com/buy-polish-residence-permit/ )

2 months, 2 weeks

Köp ett belgiskt uppehållstillstånd

by lopezolivert1＠gmail.com

2 months, 2 weeks

Köp schweiziskt ID-kort

by lopezolivert1＠gmail.com

2 months, 2 weeks

PEDIR cocaína de alta calidad en línea

by divedtomson＠gmail.com

2 months, 2 weeks

A Beginner's Guide to Geometry Dash

by marleneostetler＠wshu.net

Ever found yourself captivated by the rhythmic thumping and vibrant visuals of a game where a block navigates a perilous obstacle course? That's the essence of Geometry Dash, a deceptively simple yet endlessly engaging rhythm-based platformer that has garnered a massive following. If you're looking to dive into a game that tests your reflexes, spatial awareness, and musicality, you've come to the right place. This guide will walk you through the basics of experiencing this unique title, offering tips and insights for both newcomers and those looking to improve. What is Geometry Dash? A Symphony of Squares and Spikes At its core, geometry dash is about guiding a square-shaped icon through a series of levels, each meticulously synchronized to an energetic electronic soundtrack. The objective is straightforward: reach the end of the level without crashing into any obstacles. These obstacles range from stationary spikes and moving saws to gravity-altering portals and speed-changing gates. The beauty of Geometry Dash lies in its elegant simplicity – a single tap or click makes your icon jump. Hold down, and it will continuously jump (or fly, depending on the current game mode). https://geometrydashlitefree.com The game isn't just about pixel-perfect timing; it's also about memorization and pattern recognition. Each level is a carefully choreographed dance between your icon and the environment. While the initial levels serve as a tutorial of sorts, introducing new mechanics and obstacles gradually, the difficulty quickly ramps up, demanding precise execution and a keen ear for the music's rhythm. The satisfaction of finally conquering a particularly challenging section, after countless attempts, is a feeling few other games can replicate. Getting Started: Your First Jumps and Flips Jumping into geometry dash is surprisingly easy. Most versions of the game offer a "Lite" or free demo, allowing you to experience a taste of the action without commitment. Once you've launched the game, you'll likely be presented with a selection of official levels, each with its own unique theme, music, and difficulty rating. Start with the earliest levels, such as "Stereo Madness" or "Back on Track." These are designed to introduce you to the fundamental mechanics: the basic jump, the continuous jump, and how the music dictates the flow of the level. Don't be discouraged by early failures; dying is an integral part of the learning process in Geometry Dash. Each failed attempt offers a valuable lesson, revealing the timing of a jump or the placement of an obstacle you hadn't noticed before. As you progress, you'll encounter various game modes, each changing how your icon behaves: Cube: The standard jumping icon. Ship: Your icon transforms into a spaceship, allowing you to fly by holding down. Releasing the button causes you to descend. Ball: Gravity flips with each tap, making your icon roll along the ceiling or floor. UFO: Similar to the ship, but each tap causes a short burst of upward flight. Wave: Your icon moves in a diagonal wave pattern, controlled by holding down to go up and releasing to go down. Robot: A bouncier version of the cube, with adjustable jump height based on how long you hold down. Spider: Instantly teleports your icon between the floor and ceiling with each tap. Mastering these modes, and understanding how they interact with different portals and environmental elements, is key to success. Tips for Taming the Dash Geometry Dash can be frustrating, but with the right approach, it becomes incredibly rewarding. Here are some tips to help you on your journey: Start Slow and Steady: Don't immediately jump into demon levels. Work your way through the official levels in order, gradually building your skills and understanding of the game's mechanics. Practice Mode is Your Best Friend: Every level features a "Practice Mode" where you can place checkpoints. This allows you to tackle difficult sections repeatedly without having to restart the entire level. Utilize it extensively to learn tricky timings and obstacle patterns. Listen to the Music: The music isn't just background noise; it's a vital part of the gameplay. Many jumps and actions are synchronized with the beat, so paying attention to the rhythm can significantly improve your timing. Focus on One Section at a Time: If you're struggling with a particular part of a level, break it down. Practice that specific sequence in practice mode until you can consistently clear it. Don't Be Afraid to Take Breaks: Frustration can quickly set in. If you find yourself getting angry or making more mistakes, step away from the game for a bit. A fresh perspective can often work wonders. Experiment with Custom Levels: Once you've tackled the official levels, the community-created levels offer an endless supply of challenges and creativity. From auto levels to extreme demons, there's something for everyone. The Endless Dash Geometry Dash is more than just a game; it's a testament to dedication and perseverance. Its simple controls belie a deep and challenging experience that rewards patience and practice. Whether you're aiming to conquer every official level, create your own elaborate courses, or simply enjoy the captivating music and visuals, the world of Geometry Dash offers endless possibilities. So, grab your virtual square, crank up the volume, and prepare for an exhilarating ride through a vibrant, spike-filled world.

2 months, 2 weeks

TELEGRAM: DRMIKE100 TO BUY ADDERALL ONLINE WITHOUT SCRIPT

by humanhealthchems＠gmail.com

TELEGRAM: DRMIKE100 TO BUY ADDERALL IN JAPAN WITHOUT SCRIPT Looking to enhance focus, improve cognitive performance, and manage attention deficit hyperactivity disorder (ADHD) symptoms? Look no further than the latest stock of Adderall available online! With just a few clicks, you can conveniently buy Adderall online and experience the unparalleled benefits it offers. Harnessing the power of its active ingredients - amphetamine and dextroamphetamine - this medication stimulates the central nervous system, helping individuals maintain better concentration levels while curbing impulsivity. Whether you're a student preparing for exams or an adult seeking enhanced productivity at work, buying Adderall online opens up a world of possibilities for achieving your goals efficiently. Rest assured that our quality-controlled inventory guarantees authentic products that are safe and effective. Say goodbye to distractions and hello to laser-like focus with Buy Adderall Online! Unlock a world of convenience with our hassle-free solution – buy Adderall online, without the need for a visit to the doctor's office. Embrace efficiency and reclaim your time with a seamless online experience. Experience the freedom to manage your well-being on your terms. Say goodbye to lengthy appointments and embrace the simplicity of obtaining Buy Adderall from the comfort of your own space. No more waiting rooms, no more delays – just a straightforward process tailored to your needs. Buy Adderal Buy Adderall Online 30 mg Buy Adderall XR Online 30 mg

2 months, 3 weeks

TELEGRAM: DRMIKE100 TO BUY ADDERALL 30MG ONLINE WITHOUT PRESCRIPTION

by humanhealthchems＠gmail.com

Looking to enhance focus, improve cognitive performance, and manage attention deficit hyperactivity disorder (ADHD) symptoms? Look no further than the latest stock of Adderall available online! With just a few clicks, you can conveniently buy Adderall online and experience the unparalleled benefits it offers. Harnessing the power of its active ingredients - amphetamine and dextroamphetamine - this medication stimulates the central nervous system, helping individuals maintain better concentration levels while curbing impulsivity. Whether you're a student preparing for exams or an adult seeking enhanced productivity at work, buying Adderall online opens up a world of possibilities for achieving your goals efficiently. Rest assured that our quality-controlled inventory guarantees authentic products that are safe and effective. Say goodbye to distractions and hello to laser-like focus with Buy Adderall Online! Unlock a world of convenience with our hassle-free solution – buy Adderall online, without the need for a visit to the doctor's office. Embrace efficiency and reclaim your time with a seamless online experience. Experience the freedom to manage your well-being on your terms. Say goodbye to lengthy appointments and embrace the simplicity of obtaining Buy Adderall from the comfort of your own space. No more waiting rooms, no more delays – just a straightforward process tailored to your needs. Buy Adderal Buy Adderall Online 30 mg Buy Adderall XR Online 30 mg

2 months, 3 weeks

[PATCH v15 0/6] Rust bindings for gem shmem

by Lyude Paul

Most of this patch series has already been pushed upstream, this is just the second half of the patch series that has not been pushed yet + some additional changes which were required to implement changes requested by the mailing list. This patch series is originally from Asahi, previously posted by Daniel Almeida. The previous version of the patch series can be found here: https://patchwork.freedesktop.org/series/164580/ Branch with patches applied available here: https://gitlab.freedesktop.org/lyudess/linux/-/commits/rust/gem-shmem This patch series applies on top of drm-rust-next with the following dependencies applied: https://lore.kernel.org/rust-for-linux/20260529173137.303717-1-lyude@redhat… Lyude Paul (6): rust: gem: shmem: Fix Default implementation for ObjectConfig rust: drm: gem/shmem: Add DmaResvGuard helper rust: drm: gem: Add vmap functions to shmem bindings rust: faux: Allow retrieving a bound Device drm/gem/shmem: Introduce __drm_gem_shmem_free_sgt_locked() rust: drm: gem: Introduce shmem::Object::sg_table() drivers/gpu/drm/drm_gem_shmem_helper.c | 32 +- include/drm/drm_gem_shmem_helper.h | 1 + rust/kernel/drm/gem/shmem.rs | 497 ++++++++++++++++++++++++- rust/kernel/faux.rs | 7 +- 4 files changed, 512 insertions(+), 25 deletions(-) base-commit: 0e42ec83d46ab8877d38d37493328ed7d1a24de8 prerequisite-patch-id: c8ade07eec6e9c9e875800b114137c459d362e4e prerequisite-patch-id: c38da06dbc4cfd2589bf2e7e9f0ebaa4da521ddf -- 2.54.0

2 months, 3 weeks

[PATCH] drm/prime: Fix unsupervised rb_tree corruption in drm_prime_remove_buf_handle

by w15303746062＠163.com

From: Mingyu Wang <25181214217(a)stu.xidian.edu.cn> Syzkaller fuzzer triggered a kernel panic via a WARNING in drm_prime_destroy_file_private() due to a non-empty prime rb_tree. The root cause is a complete lack of synchronization in the teardown path. While the import path (drm_gem_prime_fd_to_handle) holds the &file_priv->prime.lock during lookup and insertion, the deletion path (drm_prime_remove_buf_handle) traverses and mutates both the 'handles' and 'dmabufs' rb_trees without acquiring any mutex. When multiple threads concurrently close GEM handles or interleave import and close operations, the pointers and balance states of the rb_tree nodes get corrupted. As a result, certain members are erased from one tree but remain orphaned in the other. Upon process exit, the final sanity check triggers the WARNING. [ 448.919314][T19739] ------------[ cut here ]------------ [ 448.945387][T19739] WARNING: CPU: 0 PID: 19739 at drivers/gpu/drm/drm_prime.c:223 drm_prime_destroy_file_private+0x43/0x60 ... [ 449.056535][T19739] Call Trace: [ 449.056544][T19739] <TASK> [ 449.056553][T19739] drm_file_free.part.0+0x805/0xcf0 [ 449.056652][T19739] drm_close_helper.isra.0+0x183/0x1f0 [ 449.056677][T19739] drm_release+0x1ab/0x360 [ 449.056719][T19739] __fput+0x402/0xb50 [ 449.056783][T19739] task_work_run+0x16b/0x260 [ 449.056883][T19739] exit_to_user_mode_loop+0xf9/0x130 [ 449.056931][T19739] do_syscall_64+0x424/0xfa0 [ 449.056977][T19739] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 449.057268][T19739] </TASK> [ 449.057295][T19739] Kernel panic - not syncing: kernel: panic_on_warn set ... Fix this by acquiring the prime_fpriv->lock mutex around the rb_tree lookup and erasure logic. To respect the locking rules and avoid potential deadlocks with driver-specific memory cleanups, assign the target node to a temporary pointer and defer the dma_buf_put() and kfree() operations until after the mutex is safely dropped. Fixes: ea2aa97ca37a ("drm/gem: Fix GEM handle release errors") Cc: stable(a)vger.kernel.org Signed-off-by: Mingyu Wang <25181214217(a)stu.xidian.edu.cn> --- drivers/gpu/drm/drm_prime.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 9b44c78cd77f..26319c638e0f 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -190,6 +190,9 @@ void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv, uint32_t handle) { struct rb_node *rb; + struct drm_prime_member *found = NULL; + + mutex_lock(&prime_fpriv->lock); rb = prime_fpriv->handles.rb_node; while (rb) { @@ -200,8 +203,7 @@ void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv, rb_erase(&member->handle_rb, &prime_fpriv->handles); rb_erase(&member->dmabuf_rb, &prime_fpriv->dmabufs); - dma_buf_put(member->dma_buf); - kfree(member); + found = member; break; } else if (member->handle < handle) { rb = rb->rb_right; @@ -209,6 +211,13 @@ void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv, rb = rb->rb_left; } } + mutex_unlock(&prime_fpriv->lock); + + /* Defer resource release outside the mutex to prevent deadlocks */ + if (found) { + dma_buf_put(found->dma_buf); + kfree(found); + } } void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv) -- 2.34.1

2 months, 3 weeks

[PATCH] drm/amdgpu: fix recursive ww_mutex acquire in amdgpu_devcoredump_format

by Mikhail Gavrilov

When dumping IB contents from a hung job, amdgpu_devcoredump_format() acquires the VM root PD's reservation lock via amdgpu_vm_lock_by_pasid() and then, for each IB referenced by the job, calls amdgpu_bo_reserve() on the BO that backs the IB. Both reservations are taken on reservation_ww_class_mutex objects but neither uses a ww_acquire_ctx, which trips lockdep: WARNING: possible recursive locking detected -------------------------------------------- kworker/u128:0 is trying to acquire lock: ffff88838b16e1f0 (reservation_ww_class_mutex){+.+.}-{4:4}, at: amdgpu_devcoredump_format+0x1594/0x23f0 [amdgpu] but task is already holding lock: ffff8882f82681f0 (reservation_ww_class_mutex){+.+.}-{4:4}, at: amdgpu_devcoredump_format+0x1594/0x23f0 [amdgpu] Possible unsafe locking scenario: CPU0 ---- lock(reservation_ww_class_mutex); lock(reservation_ww_class_mutex); *** DEADLOCK *** May be due to missing lock nesting notation Workqueue: events_unbound amdgpu_devcoredump_deferred_work [amdgpu] Call Trace: __ww_mutex_lock.constprop.0 ww_mutex_lock amdgpu_bo_reserve amdgpu_devcoredump_format+0x1594 [amdgpu] amdgpu_devcoredump_deferred_work+0xea [amdgpu] process_one_work worker_thread kthread The two reservations are on different BOs in the captured trace, so the splat is a lockdep-correctness warning, not an observed deadlock. It becomes a real self-deadlock whenever the IB BO shares its dma_resv with the root PD (the always-valid case, see amdgpu_vm_is_bo_always_valid()): amdgpu_bo_reserve(abo) re-acquires the same ww_mutex without a ticket and blocks forever. With amdgpu.gpu_recovery=0 the timeout handler refires every ~2 s and each invocation produces this splat, drowning the kernel ring buffer. Fix it by collecting the per-IB BO references under the root PD's reservation, then releasing the root before reserving each IB BO individually. The walk over the VM mapping tree must remain under the root lock (mappings can be torn down without it), but the actual content copies do not need to nest inside it. Each per-IB reservation is now an independent top-level acquire, eliminating the nested ww_mutex. The collect/release logic is factored out into two small helpers (amdgpu_devcoredump_collect_ib_refs / amdgpu_devcoredump_release_ib_refs) to keep the main function's indentation reasonable. This also fixes a BO refcount leak in the original code: when amdgpu_bo_reserve() failed, control jumped to free_ib_content without running amdgpu_bo_unref(). In the new structure the per-IB BO refs are released unconditionally in the cleanup helper. Reproducer (~150 LoC libdrm_amdgpu): submit a single GFX IB containing PACKET3_INDIRECT_BUFFER chained at GPU VA 0 and wait for the fence. The TDR fires within ~10 s and the deferred coredump worker produces the splat above on every invocation. Fixes: 7b15fc2d1f1a ("drm/amdgpu: dump job ibs in the devcoredump") Cc: stable(a)vger.kernel.org # 7.1 Signed-off-by: Mikhail Gavrilov <mikhail.v.gavrilov(a)gmail.com> --- .../gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c | 147 +++++++++++++----- 1 file changed, 110 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c index d386bc775d03..f6bb968de756 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c @@ -207,6 +207,72 @@ static void amdgpu_devcoredump_fw_info(struct amdgpu_device *adev, } } +struct amdgpu_devcoredump_ib_ref { + struct amdgpu_bo *bo; + u64 offset; +}; + +/* + * Walk the VM's mapping tree under the root PD's reservation to obtain the BO + * that backs each IB and pin it with a refcount. The root PD reservation is + * dropped before this function returns; the caller can then reserve each IB + * BO individually without nesting ww_mutex acquires on + * reservation_ww_class_mutex. + * + * Returns an array of num_ibs entries (each ib_refs[i].bo may be NULL if its + * mapping was not found), or NULL on allocation failure / VM lookup failure. + * The caller must release the BO refs and free the array. + */ +static struct amdgpu_devcoredump_ib_ref * +amdgpu_devcoredump_collect_ib_refs(struct amdgpu_device *adev, + struct amdgpu_coredump_info *coredump) +{ + struct amdgpu_devcoredump_ib_ref *ib_refs; + struct amdgpu_bo_va_mapping *mapping; + struct amdgpu_bo *root; + struct amdgpu_vm *vm; + u64 va_start; + + ib_refs = kcalloc(coredump->num_ibs, sizeof(*ib_refs), GFP_KERNEL); + if (!ib_refs) + return NULL; + + vm = amdgpu_vm_lock_by_pasid(adev, &root, coredump->pasid); + if (!vm) { + kfree(ib_refs); + return NULL; + } + + for (int i = 0; i < coredump->num_ibs; i++) { + va_start = coredump->ibs[i].gpu_addr & AMDGPU_GMC_HOLE_MASK; + mapping = amdgpu_vm_bo_lookup_mapping(vm, va_start / AMDGPU_GPU_PAGE_SIZE); + if (!mapping) + continue; + + ib_refs[i].bo = amdgpu_bo_ref(mapping->bo_va->base.bo); + ib_refs[i].offset = va_start - + mapping->start * AMDGPU_GPU_PAGE_SIZE; + } + + amdgpu_bo_unreserve(root); + amdgpu_bo_unref(&root); + + return ib_refs; +} + +static void +amdgpu_devcoredump_release_ib_refs(struct amdgpu_devcoredump_ib_ref *ib_refs, + int num_ibs) +{ + if (!ib_refs) + return; + + for (int i = 0; i < num_ibs; i++) + if (ib_refs[i].bo) + amdgpu_bo_unref(&ib_refs[i].bo); + kfree(ib_refs); +} + static ssize_t amdgpu_devcoredump_format(char *buffer, size_t count, struct amdgpu_coredump_info *coredump) { @@ -214,13 +280,11 @@ amdgpu_devcoredump_format(char *buffer, size_t count, struct amdgpu_coredump_inf struct drm_printer p; struct drm_print_iterator iter; struct amdgpu_vm_fault_info *fault_info; - struct amdgpu_bo_va_mapping *mapping; struct amdgpu_ip_block *ip_block; struct amdgpu_res_cursor cursor; - struct amdgpu_bo *abo, *root; - uint64_t va_start, offset; + struct amdgpu_bo *abo; + uint64_t offset; struct amdgpu_ring *ring; - struct amdgpu_vm *vm; u32 *ib_content; uint8_t *kptr; int ver, i, j, r; @@ -343,43 +407,52 @@ amdgpu_devcoredump_format(char *buffer, size_t count, struct amdgpu_coredump_inf drm_printf(&p, "VRAM is lost due to GPU reset!\n"); if (coredump->num_ibs) { - /* Don't try to lookup the VM or map the BOs when calculating the - * size required to store the devcoredump. + struct amdgpu_devcoredump_ib_ref *ib_refs = NULL; + + /* + * Snapshot per-IB BO references under the root PD's reservation, + * then release the root before reserving each IB BO individually + * to copy its contents. + * + * Reserving an IB BO while the root PD is still reserved would + * be a nested ww_mutex acquire on reservation_ww_class_mutex + * without a ww_acquire_ctx, which trips lockdep's recursive- + * locking check and self-deadlocks for IB BOs that share their + * dma_resv with the root PD (always-valid BOs). + * + * Skip lookup/reservation entirely on the sizing pass: it does + * not write IB content, and the size estimate doesn't depend on + * whether the BOs are reachable. */ - if (sizing_pass) - vm = NULL; - else - vm = amdgpu_vm_lock_by_pasid(adev, &root, coredump->pasid); + if (!sizing_pass) + ib_refs = amdgpu_devcoredump_collect_ib_refs(adev, coredump); - for (int i = 0; i < coredump->num_ibs && (sizing_pass || vm); i++) { + for (int i = 0; i < coredump->num_ibs; i++) { ib_content = kvmalloc_array(coredump->ibs[i].ib_size_dw, 4, GFP_KERNEL); if (!ib_content) continue; - /* vm=NULL can only happen when 'sizing_pass' is true. Skip to the - * drm_printf() calls (ib_content doesn't need to be initialized - * as its content won't be written anywhere). - */ - if (!vm) + if (sizing_pass) goto output_ib_content; - va_start = coredump->ibs[i].gpu_addr & AMDGPU_GMC_HOLE_MASK; - mapping = amdgpu_vm_bo_lookup_mapping(vm, va_start / AMDGPU_GPU_PAGE_SIZE); - if (!mapping) - goto free_ib_content; + if (!ib_refs || !ib_refs[i].bo) + goto output_ib_content; + + abo = ib_refs[i].bo; + offset = ib_refs[i].offset; - offset = va_start - (mapping->start * AMDGPU_GPU_PAGE_SIZE); - abo = amdgpu_bo_ref(mapping->bo_va->base.bo); r = amdgpu_bo_reserve(abo, false); if (r) - goto free_ib_content; + goto output_ib_content; if (abo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) { off = 0; - if (abo->tbo.resource->mem_type != TTM_PL_VRAM) - goto unreserve_abo; + if (abo->tbo.resource->mem_type != TTM_PL_VRAM) { + amdgpu_bo_unreserve(abo); + goto output_ib_content; + } amdgpu_res_first(abo->tbo.resource, offset, coredump->ibs[i].ib_size_dw * 4, @@ -395,8 +468,10 @@ amdgpu_devcoredump_format(char *buffer, size_t count, struct amdgpu_coredump_inf r = ttm_bo_kmap(&abo->tbo, 0, PFN_UP(abo->tbo.base.size), &abo->kmap); - if (r) - goto unreserve_abo; + if (r) { + amdgpu_bo_unreserve(abo); + goto output_ib_content; + } kptr = amdgpu_bo_kptr(abo); kptr += offset; @@ -406,21 +481,19 @@ amdgpu_devcoredump_format(char *buffer, size_t count, struct amdgpu_coredump_inf amdgpu_bo_kunmap(abo); } + amdgpu_bo_unreserve(abo); + output_ib_content: drm_printf(&p, "\nIB #%d 0x%llx %d dw\n", i, coredump->ibs[i].gpu_addr, coredump->ibs[i].ib_size_dw); - for (int j = 0; j < coredump->ibs[i].ib_size_dw; j++) - drm_printf(&p, "0x%08x\n", ib_content[j]); -unreserve_abo: - if (vm) - amdgpu_bo_unreserve(abo); -free_ib_content: + if (!sizing_pass && ib_refs && ib_refs[i].bo) { + for (int j = 0; j < coredump->ibs[i].ib_size_dw; j++) + drm_printf(&p, "0x%08x\n", ib_content[j]); + } kvfree(ib_content); } - if (vm) { - amdgpu_bo_unreserve(root); - amdgpu_bo_unref(&root); - } + + amdgpu_devcoredump_release_ib_refs(ib_refs, coredump->num_ibs); } return count - iter.remain; -- 2.54.0

2 months, 3 weeks

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

Linaro-mm-sig