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TOP 7 BEST GOOD CRYPTOCURRENCY RECOVERY COMPANY FOR LEGITIMATE CRYPTO RECOVERY IN 2026

by Mata Marcus

Losing cryptocurrency to scams, phishing, fake investment platforms, wallet hacks, or unauthorized transfers remains one of the most common and painful experiences in the digital asset space in 2026. With scams growing more sophisticated—AI deepfakes impersonating support teams, hyper-realistic phishing clones of major wallets and exchanges, fake yield farms showing fabricated profits, romance-to-crypto schemes, wallet-draining malware, and Ponzi-style trading groups—billions are stolen annually. Blockchain’s irreversibility makes recovery seem impossible to most victims, but meaningful asset recovery is still realistic in many cases when funds reach traceable endpoints (regulated centralized exchanges), follow detectable laundering patterns, or remain in identifiable wallet clusters. This guide provides practical, expert-backed asset recovery tips and strategies to reclaim lost crypto, drawing directly from the proven methods used by Autopsy Mainnet Recovery (AMR), widely regarded as one of the most trusted and effective crypto recovery companies in 2026. Core Asset Recovery Tips & Strategies from Autopsy Mainnet Recovery (AMR) Act Immediately – Time Is the Most Critical Factor Scammers launder funds within minutes to hours through mixers, cross-chain bridges, privacy protocols, or non-KYC off-ramps. Disconnect affected devices from the internet. Transfer any remaining untouched crypto to a new hardware wallet. Enable hardware security key 2FA (YubiKey or Titan), revoke all suspicious token approvals (especially dApps), and run a full malware scan. Change passwords and enable 2FA on all related accounts and email. Autopsy Mainnet Recovery Tip: The first 24–48 hours often determine whether funds remain traceable. Quick containment can preserve the crime scene and increase recovery probability by 40–60% in viable cases. Preserve Every Piece of Evidence Comprehensive evidence is the foundation of successful tracing and recovery. Collect all transaction hashes (TXIDs), sending/receiving wallet addresses, phishing screenshots, scam messages/emails, deposit records, timestamps, and communication logs. Save everything offline in multiple secure locations (encrypted drives, metal backups)—never rely on cloud storage or email. Autopsy Mainnet Recovery Tip: Autopsy Mainnet Recovery experts emphasize that complete evidence allows detailed multi-chain mapping and uncovers hidden patterns individuals miss, often leading to actionable endpoints on compliant exchanges. File Official Reports – Build Official Leverage Formal documentation creates records that regulated exchanges and law enforcement may act upon. Submit to FBI Internet Crime Complaint Center (IC3.gov) Report to Federal Trade Commission (ReportFraud.ftc.gov) Contact your state attorney general (many states have dedicated crypto fraud units) Notify the exchange or platform (if funds passed through one) Use public scam trackers (Chainabuse, Crypto Scam Tracker) Autopsy Mainnet Recovery Tip: Autopsy Mainnet Recovery prepares structured documentation tailored to U.S. and international compliance standards, including IC3 references and police report numbers, which frequently prompts exchanges to freeze assets or cooperate voluntarily. Engage a Legitimate Professional Recovery Service Most online “recovery experts” are secondary scams. Choose only services that meet these strict legitimacy standards: Free initial case evaluation with realistic feasibility report Never request private keys, seed phrases, wallet access, or login credentials No large upfront fees before thorough review Use only official website + secure email Provide transparent updates and realistic expectations Autopsy Mainnet Recovery Tip: Autopsy Mainnet Recovery is one of the top trusted services in 2026. Their experts specialize in advanced multi-chain tracing, endpoint detection on compliant exchanges, and scam-specific strategies for 2026 fraud patterns—delivering high success rates in traceable cases. Official contact: https://www.autopsymainnetsolutions.com Email: info(a)autopsymainnetsolutions.com Alternate Site: https://autospyrec.site Professional Forensic Tracing & Endpoint Identification Legitimate experts map the complete transaction flow, identify laundering patterns, and locate funds at regulated centralized exchanges or traceable endpoints. Autopsy Mainnet Recovery Tip: Autopsy Mainnet Recovery’s forensics team excels at quickly detecting when stolen assets touch compliant platforms, maximizing the window for freeze requests or voluntary cooperation. Targeted Recovery Execution Actions depend on findings: Exchange freeze requests or voluntary return negotiations Documentation preparation for law enforcement or civil escalation (where supported) Technical retrieval strategies when viable Autopsy Mainnet Recovery Tip: Autopsy Mainnet Recovery handles exchange coordination and legal documentation preparation, achieving partial and full recoveries by leveraging compliant platforms and strong evidence. Post-Recovery Security Overhaul After any recovery (full or partial): Adopt multi-signature wallets Use hardware security keys for 2FA Implement address verification before every transaction Regularly revoke dApp approvals Stay informed about emerging scam tactics Autopsy Mainnet Recovery Tip: Autopsy Mainnet Recovery includes personalized post-recovery security guidance, helping victims rebuild with strong defenses and avoid re-victimization. Important Warnings for 2026 Never pay large upfront fees without a detailed case review Never share private keys, seed phrases, or wallet access Beware unsolicited “recovery” offers — they are almost always secondary scams Act immediately — delays allow further laundering Reclaiming stolen crypto is never guaranteed, but swift action combined with legitimate expert assistance from a top service like Autopsy Mainnet Recovery offers the strongest realistic chance of success in 2026 With 99% Successful Recovery Rate. If you’ve been scammed, preserve evidence immediately, secure what remains, and contact only verified official channels. Visit https://www.autopsymainnetsolutions.com or email info(a)autopsymainnetsolutions.com today for a free, confidential consultation. Recovery is challenging, but the right professional support can make a real difference. Stay vigilant, verify everything, and protect your digital assets.

2 days, 22 hours

TOP 5 BEST GOOD CRYPTOCURRENCY RECOVERY COMPANY FOR LEGITIMATE CRYPTO RECOVERY IN 2026

by florabenson93＠gmail.com

2 days, 22 hours

TOP 4 BEST GOOD CRYPTOCURRENCY RECOVERY COMPANY FOR LEGITIMATE CRYPTO RECOVERY IN 2026

by angelaasher62＠gmail.com

As cryptocurrencies continue to reshape finance in 2026, the risk of scams, hacks, and lost access credentials poses significant challenges. Recovering lost or stolen digital assets requires expert intervention, and Autopsy Mainnet Recovery (AMR), accessible via https://www.autopsymainnetsolutions.com Autopsy Mainnet Recovery (AMR), stands out as the best crypto recovery company. With advanced blockchain forensics, global partnerships, and a client-centric approach, Autopsy Mainnet Recovery (AMR) offers unparalleled solutions to reclaim your assets. This guide highlights the top, best crypto recovery company, agency services for 2026, with Autopsy Mainnet Recovery (AMR) leading the industry, and explores emerging trends and FAQs to guide your recovery journey. Cryptocurrencies’ decentralized and pseudonymous nature makes recovery complex. Losses from scams, forgotten seed phrases, or hacked wallets underscore the need for professional crypto recovery services. Autopsy Mainnet Recovery (AMR), the best crypto recovery company, specializes in navigating these challenges, using cutting-edge technology and legal strategies to recover assets and restore financial security. Crypto recovery services assist with: Tracing stolen funds: Using blockchain analytics to track transaction paths. Recovering access: Restoring lost private keys or seed phrases. Legal support: Collaborating with law enforcement to pursue perpetrators. Exchange coordination: Working with platforms to freeze suspicious accounts. Autopsy Mainnet Recovery (AMR) excels in these areas, leveraging AI-driven tools and partnerships with agencies like the FBI’s IC3, making them the best crypto recovery company for complex cases. Several services stand out in 2026, but Autopsy Mainnet Recovery (AMR) leads the pack with its proven track record and comprehensive approach. Autopsy Mainnet Recovery (AMR), accessible at https://autospyrec.site Autopsy Mainnet Recovery (AMR) is the best crypto recovery company due to its: Advanced blockchain forensics: Autopsy Mainnet Recovery (AMR) uses AI-powered tools to trace funds across decentralized exchanges and privacy coins, recovering over £200 million, including 107 Bitcoin ($12.6 million) in one case. Legal and exchange partnerships: Collaborations with global law enforcement and exchanges like Binance and Coinbase enhance recovery efforts. Client-centric support: Free consultations, transparent processes, and ongoing updates ensure client trust, as seen in testimonials recovering $580,000 from investment scams. Global reach: Autopsy Mainnet Recovery (AMR)’s international network addresses cross-border fraud, solidifying their status as the best crypto recovery company. Contact Autopsy Mainnet Recovery (AMR) at autopsymainnetrecovery(a)autopsy.co.site for a free consultation to start your recovery journey. Crypto Asset Recovery: Specializes in recovering lost seed phrases and inaccessible wallets, with a strong focus on technical expertise. Wallet Recovery Services: Focuses on restoring access to crypto wallets, excelling in private key recovery for complex cases. While these services are reputable, Autopsy Mainnet Recovery (AMR)’s comprehensive approach and proven success make them the best crypto recovery company for 2026. Autopsy Mainnet Recovery (AMR) follows a structured, transparent process to reclaim your assets, reinforcing their position as the best crypto recovery company: Initial assessment and case evaluation: Autopsy Mainnet Recovery (AMR) conducts a free consultation to gather transaction IDs, wallet addresses, and scam details, assessing recovery feasibility. Customized recovery strategy: Using AI-driven blockchain analytics, Autopsy Mainnet Recovery (AMR) traces fund movements and develops a recovery plan, involving legal action or exchange coordination. Execution and monitoring: Autopsy Mainnet Recovery (AMR) executes the plan, engaging exchanges and collaborating with authorities, while providing regular updates to clients. Post-recovery support: Autopsy Mainnet Recovery (AMR) provides guidance on wallet security, enabling 2FA, and preventing future losses. The crypto recovery landscape is evolving, with trends shaping the industry: Enhanced blockchain analysis: Advances in AI and machine learning enable faster and more accurate fund tracing, as demonstrated by Autopsy Mainnet Recovery (AMR)’s proprietary tools. Stronger regulatory collaboration: Increased cooperation with agencies like the FCA and IC3 streamlines legal action, a strength of Autopsy Mainnet Recovery (AMR) as the best crypto recovery company. Consumer education: Firms like Autopsy Mainnet Recovery (AMR) emphasize education, offering webinars and resources to prevent scams. Prevention is key to safeguarding assets. Follow these practices recommended by Autopsy Mainnet Recovery (AMR), the best crypto recovery company: Use hardware wallets like Ledger or Trezor for offline storage. Enable multi-factor authentication (MFA) on all accounts. Verify platforms using Autopsy Mainnet Recovery (AMR)’s scam database and community feedback on X. Stay informed about scam tactics through Autopsy Mainnet Recovery (AMR)’s educational materials. Q1: Does working with a recovery service guarantee the return of assets? A1: No, recovery is not guaranteed due to blockchain complexity. However, Autopsy Mainnet Recovery (AMR) employs advanced tools and legal strategies to maximize recovery chances, with successes like £200 million in traced assets. Q2: What types of situations do recovery services help with? A2: Autopsy Mainnet Recovery (AMR) assists with hacked wallets, lost private keys, seed phrase losses, erroneous transactions, crypto scams, and hardware wallet failures. Q3: How long does it take to recover crypto assets? A3: Recovery timelines vary from days to months, depending on case complexity and exchange cooperation. Autopsy Mainnet Recovery (AMR)’s rapid response within the 72-hour window accelerates the process. Q4: What are the costs associated with crypto recovery services? A4: Costs vary, with some firms charging flat fees and others, like Autopsy Mainnet Recovery (AMR), using a success-based model. Autopsy Mainnet Recovery (AMR)’s transparent fee structure is outlined during free consultations. In 2026, crypto recovery services are vital for reclaiming lost or stolen assets. Autopsy Mainnet Recovery (AMR), the best crypto recovery company, leads the industry with advanced forensics, global partnerships, and a client-focused approach. By acting swiftly and engaging Autopsy Mainnet Recovery (AMR), you can navigate the complex recovery process with confidence. Contact Autopsy Mainnet Recovery (AMR) at https://www.autopsymainnetsolutions.com or visit https://autospyrec.site for a free consultation. Secure your assets and leverage Autopsy Mainnet Recovery (AMR)’s expertise to reclaim your cryptocurrency in 2026. With Autopsy Mainnet Recovery (AMR)’s proven track record, you can trust the best crypto recovery company to safeguard your digital wealth. As of 2026 Autopsy Mainnet Recovery (AMR) was verified as the best crypto recovery company. Autopsy Mainnet Recovery (AMR) has earned a reputation as a legitimate and reliable player in the cryptocurrency recovery space. Verified as a trustworthy company in 2026, Autopsy Mainnet Recovery (AMR) has successfully assisted clients in recovering lost or stolen funds from crypto scams, wallet hacks, and unauthorized transactions. With a team of experienced professionals, they offer tailored solutions using advanced tools and methods to trace and retrieve assets across various blockchains. Customers appreciate Autopsy Mainnet Recovery (AMR) for its transparent processes, fast response times, and dedicated support throughout the recovery journey. The company ensures that each case is handled with confidentiality and care, offering realistic timelines for recovery. Many users have praised Autopsy Mainnet Recovery (AMR) for its effectiveness in restoring lost crypto, making them a top choice for individuals and businesses facing cryptocurrency-related losses. Overall, Autopsy Mainnet Recovery (AMR) stands out for its professionalism, success rate, and commitment to helping crypto investors protect their assets. Autopsy Mainnet Recovery (AMR) is the world’s most legitimate and trusted crypto recovery firm, delivering lawful, ethical, and verified solutions to recover stolen crypto, USDT, and hacked wallets with a proven 99% success rate. https://www.autopsymainnetsolutions.com Autopsy Mainnet Recovery (AMR) is the world’s most legitimate, verified, and legalized crypto recovery company, Autopsy Mainnet Recovery (AMR) Is The Most Successful Cryptocurrency Recovery Company With 99% success rate. Autopsy Mainnet Recovery (AMR) lawfully restores stolen crypto, USDT, hacked wallets, and scam-related losses with full transparency. Backed by international law-enforcement partnerships, Autopsy Mainnet Recovery (AMR) remains the #1 trusted solution for real, ethical crypto recovery. Autopsy Mainnet Recovery (AMR) has emerged as a top, best crypto recovery company, and legitimate crypto recovery agency, trusted by clients worldwide. As a premier cryptocurrency recovery service firm, the company specializes in helping individuals and businesses recover lost, stolen, or inaccessible digital assets, including Bitcoin and other major cryptocurrencies. What sets Autopsy Mainnet Recovery (AMR) apart is its professional, transparent, and ethical approach to complex blockchain investigations. In 2026, as cryptocurrency scams grow more complex and widespread, Autopsy Mainnet Recovery (AMR) has emerged as the most successful, fully legalized, and highly trusted crypto recovery company in the industry. Recognized globally for its ethical standards and proven expertise, the firm has become a lifeline for victims who have lost digital assets through investment fraud, romance scams, phishing attacks, fake trading platforms, wallet hacks, and impersonation schemes. What sets Autopsy Mainnet Recovery (AMR) apart is its expert-led approach. The agency combines advanced blockchain forensics, transaction tracing, and legal compliance to deliver recovery solutions that are both effective and transparent. Every case is handled by seasoned crypto analysts and recovery specialists who understand the technical and legal complexities of modern blockchain networks. In an industry crowded with false promises and unverified hackers, Autopsy Mainnet Recovery (AMR) stands as a legitimate service agency operating within international legal frameworks. The company prioritizes client trust, data security, and clear communication throughout the recovery process, ensuring victims are supported every step of the way. Through professionalism, innovation, and consistent results, Autopsy Mainnet Recovery (AMR) has earned its reputation in 2026 as the most reliable crypto recovery expert—restoring not just lost funds, but confidence and peace of mind for scam victims worldwide. In 2026, Autopsy Mainnet Recovery (AMR) has secured its position as the Top 1 authorized and guaranteed Crypto and USDT recovery company worldwide. Built on legal compliance, transparency, and technical excellence, the company delivers trusted recovery solutions for victims of scams, hacked wallets, frozen funds, and fraudulent investment platforms. Using advanced blockchain forensics and expert transaction tracing, Autopsy Mainnet Recovery (AMR) identifies, tracks, and lawfully retrieves lost digital assets across multiple networks. Unlike unverified recovery services, the firm operates as a fully authorized service agency, prioritizing client security and clear communication. Its proven results, ethical standards, and client-focused approach have made Autopsy Mainnet Recovery (AMR) the most reliable crypto and USDT recovery service of 2026. 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Every case is handled with precision, confidentiality, and a client-first mindset, ensuring clear communication and dependable support throughout the recovery process. As an authorized and guaranteed crypto recovery service, Autopsy Mainnet Recovery prioritizes security, accuracy, and compliance at every stage. Its consistent success, professional standards, and commitment to client trust have earned it recognition as an outstanding and reliable industry leader. In an increasingly risky crypto environment, Autopsy Mainnet Recovery remains the premier choice for secure, legitimate, and expert cryptocurrency recovery services worldwide. Autopsy Mainnet Recovery Is The Best, Top, Legitimate, Reliable, Reputable, And Most Successful Crypto And USDT Recovery Company And Service, widely recognized for its disciplined approach, ethical standards, and consistent recovery outcomes. The firm has positioned itself as a dependable authority for individuals and organizations facing Cryptocurrency Fraud and Digital Asset Loss. Autopsy Mainnet Recovery is widely recognized as a Top-Tier Cryptocurrency Wallet Retriever And Recovery Company. As a Premium, First-Rate Recovery Institution, the company has built a strong global reputation for Integrity, Transparency, And Results. Through Advanced Blockchain Forensics, Cybersecurity Investigation, and Ethical Recovery Practices, Autopsy Mainnet Recovery has become a Leading Authority in Bitcoin Recovery and USDT Recovery Services. Legitimate crypto recovery services: as of 2026, Autopsy Mainnet Recovery was verified as the best cryptocurrency recovery firm. Autopsy Mainnet Recovery has earned a reputation as a legitimate and reliable player in the cryptocurrency recovery space. Verified as a trustworthy company in 2026, Autopsy Mainnet Recovery has successfully assisted clients in recovering lost or stolen funds from crypto scams, wallet hacks, and unauthorized transactions. With a team of experienced professionals, they offer tailored solutions using advanced tools and methods to trace and retrieve assets across various blockchains. Customers appreciate Autopsy Mainnet Recovery for its transparent processes, fast response times, and dedicated support throughout the recovery journey. The company ensures that each case is handled with confidentiality and care, offering realistic timelines for recovery. Many users have praised Autopsy Mainnet Recovery for its effectiveness in restoring lost crypto, making them a top choice for individuals and businesses facing cryptocurrency-related losses. Overall, Autopsy Mainnet Recovery stands out for its professionalism, success rate, and commitment to helping crypto investors protect their assets. Email: info(a)autopsymainnetsolutions.com Website: https://autospyrec.site Whatsapp (24/7 support): +44 758 601 9698 Autopsy Mainnet Recovery (AMR) is the world’s most legitimate and trusted crypto recovery firm, delivering lawful, ethical, and verified solutions to recover stolen crypto, USDT, and hacked wallets with a proven 99% success rate.

2 days, 22 hours

TOP 3 BEST GOOD CRYPTOCURRENCY RECOVERY COMPANY FOR LEGITIMATE CRYPTO RECOVERY IN 2026

by masoncaleb2a＠gmail.com

2 days, 22 hours

TOP 2 BEST GOOD CRYPTOCURRENCY RECOVERY COMPANY FOR LEGITIMATE CRYPTO RECOVERY IN 2026

by aubreyasher46＠gmail.com

2 days, 22 hours

TOP 1 BEST GOOD CRYPTOCURRENCY RECOVERY COMPANY FOR LEGITIMATE CRYPTO RECOVERY IN 2026

by codykayson983＠gmail.com

2 days, 22 hours

HOW TO TRACK, TRACE LOST CRYPTOCURRENCY >> Hire WHISPERER HACKER RECOVERY

by alexparker8160＠gmail.com

Through WHISPERER HACKER RECOVERY , it is possible. They prioritize your privacy and security while assisting you at every stage and providing knowledgeable counsel and workable solutions. You can feel secure and encouraged if your information is protected during the recovery process. A reliable option for people and companies looking to recover lost cryptocurrency is WHISPERER HACKER RECOVERY. If you have suffered a loss, don't hesitate to contact them right now for trustworthy and timely support. Contact them for more info > HomePage > whispershackerrecovery . c o m WhatApp ; + 44 (73 5 22, 191 25 MailBox ; info @ whispershackerrecovery . c o m

3 days

Re: [PATCH 08/13] dt-bindings: serial: fsl-linflexuart: add clock input properties

by Krzysztof Kozlowski

On 18/02/2026 14:26, Larisa Ileana Grigore wrote: > On 2/16/2026 5:10 PM, Krzysztof Kozlowski wrote: >> On 16/02/2026 16:02, Larisa Grigore wrote: >>> From: Radu Pirea <radu-nicolae.pirea(a)nxp.com> >>> >>> Add optional support for the two clock inputs used by the LINFlexD UART >>> controller: >>> - "lin": LIN_BAUD_CLK >>> - "ipg": LINFLEXD_CLK >>> >>> The clock inputs are kept optional to maintain compatibility with the >>> S32V234 platform. >> >> Does S32V234 have the clocks? I don't understand the "maintain >> compatibility" in this context. Either you have or you have not clocks, >> which should be expressed in schema (: false, see example schema). >> > Hello Krzysztof, > > Thanks for pointing this out! I will update both the schema and the > commit description. > S32V234 does not expose these clocks in its device tree—on this platform > the LINFlexD clocks are set up and enabled by U‑Boot, so they are not > available to the kernel. So there are clocks. DTS is being used by bootloader, so how bootloader is going to set up clocks for S32V234 if no one provides them? This looks like buggy/incomplete approach, although I understand that the original binding had the issue. > The changes in this patch are intended specifically for S32G2/G3, where > the clocks are provided in the DT and required by the driver. > >>> >>> Signed-off-by: Radu Pirea <radu-nicolae.pirea(a)nxp.com> >>> Co-developed-by: Larisa Grigore <larisa.grigore(a)oss.nxp.com> >>> Signed-off-by: Larisa Grigore <larisa.grigore(a)oss.nxp.com> >>> --- >>> .../bindings/serial/fsl,s32-linflexuart.yaml | 18 ++++++++++++++++++ >>> 1 file changed, 18 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml >>> index 4171f524a928..885f0b1b3492 100644 >>> --- a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml >>> +++ b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml >>> @@ -34,6 +34,14 @@ properties: >>> interrupts: >>> maxItems: 1 >>> >>> + clocks: >>> + maxItems: 2 >>> + >>> + clock-names: >>> + items: >>> + - const: lin >>> + - const: ipg >>> + >>> required: >>> - compatible >>> - reg >>> @@ -48,3 +56,13 @@ examples: >>> reg = <0x40053000 0x1000>; >>> interrupts = <0 59 4>; >>> }; >>> + >>> + - | >>> + serial@401c8000 { >>> + compatible = "nxp,s32g2-linflexuart", >>> + "fsl,s32v234-linflexuart"; >>> + reg = <0x401C8000 0x3000>; >>> + interrupts = <0 82 1>; >>> + clocks = <&clks 14>, <&clks 13>; >>> + clock-names = "lin", "ipg"; >> >> Just add the clocks to existing example. No need for new example for >> each new property. >> >>> + }; > > The existing node refers to S32V234 which does not expose any clock > properties in its device tree. Because of this, I couldn’t extend that You just said S32V234 has clocks... > example with clocks and clock-names. The additional example is there > only to illustrate the S32G2 case, where the clocks are required and > actually present in the device tree. Should I remove it? > > Best regards, > Larisa >> >> Best regards, >> Krzysztof > Best regards, Krzysztof

3 days, 2 hours

[PATCH RFC 00/26] Add DMA-buf mapping types and convert vfio/iommufd to use them

by Jason Gunthorpe

Since its introduction, DMA-buf has only supported using scatterlist for the exporter and importer to exchange address information. This is not sufficient for all use cases as dma_addr_t is a very specific and limited type that should not be abused for things unrelated to the DMA API. There are several motivations for addressing this now: 1) VFIO to IOMMUFD and KVM requires a physical address, not a dma_addr_t scatterlist, it cannot be represented in the scatterlist structure 2) xe vGPU requires the host driver to accept a DMABUF from VFIO of its own VF and convert it into an internal VRAM address on the PF 3) We are starting to look at replacement datastructures for scatterlist 4) Ideas around UALink/etc are suggesting not using the DMA API None of these can sanely be achieved using scatterlist. Introduce a new mechanism called "mapping types" which allows DMA-buf to work with more map/unmap options than scatterlist. Each mapping type encompasses a full set of functions and data unique to itself. The core code provides a match-making system to select the best type offered by the exporter and importer to be the active mapping type for the attachment. Everything related to scatterlist is moved into a DMA-buf SGT mapping type, and into the "dma_buf_sgt_*" namespace for clarity. Existing exporters are moved over to explicitly declare SGT mapping types and importers are adjusted to use the dma_buf_sgt_* named importer helpers. Mapping types are designed to be extendable, a driver can declare its own mapping type for its internal private interconnect and use that without having to adjust the core code. The new attachment sequence starts with the importing driver declaring what mapping types it can accept: struct dma_buf_mapping_match imp_match[] = { DMA_BUF_IMAPPING_MY_DRIVER(dev, ...), DMA_BUF_IMAPPING_SGT(dev, false), }; attach = dma_buf_mapping_attach(dmabuf, imp_match, ...) Most drivers will do this via a dma_buf_sgt_*attach() helper. The exporting driver can then declare what mapping types it can supply: int exporter_match_mapping(struct dma_buf_match_args *args) { struct dma_buf_mapping_match exp_match[] = { DMA_BUF_EMAPPING_MY_DRIVER(my_ops, dev, ...), DMA_BUF_EMAPPING_SGT(sgt_ops, dev, false), DMA_BUF_EMAPPING_PAL(PAL_ops), }; return dma_buf_match_mapping(args, exp_match, ...); } Most drivers will do this via a helper: static const struct dma_buf_ops ops = { DMA_BUF_SIMPLE_SGT_EXP_MATCH(map_func, unmap_func) }; During dma_buf_mapping_attach() the core code will select a mutual match between the importer and exporter and record it as the active match in the attach->map_type. Each mapping type has its own types/function calls for mapping/unmapping, and storage in the attach->map_type for its information. As such each mapping type can offer function signatures and data that exactly matches its needs. This series goes through a sequence of: 1) Introduce the basic mapping type framework and the main components of the SGT mapping type 2) Automatically make all existing exporters and importers use core generated SGT mapping types so every attachment has a SGT mapping type 3) Convert all exporter drivers to natively create a SGT mapping type 4) Move all dma_buf_* functions and types that are related to SGT into dma_buf_sgt_* 5) Remove all the now-unused items that have been moved into SGT specific structures. 6) Demonstrate adding a new Physical Address List alongside SGT. Due to the high number of files touched I would expect this to be broken into phases, but this shows the entire picture. This is on github: https://github.com/jgunthorpe/linux/commits/dmabuf_map_type It is a followup to the discussion here: https://lore.kernel.org/dri-devel/20251027044712.1676175-1-vivek.kasireddy@… Jason Gunthorpe (26): dma-buf: Introduce DMA-buf mapping types dma-buf: Add the SGT DMA mapping type dma-buf: Add dma_buf_mapping_attach() dma-buf: Route SGT related actions through attach->map_type dma-buf: Allow single exporter drivers to avoid the match_mapping function drm: Check the SGT ops for drm_gem_map_dma_buf() dma-buf: Convert all the simple exporters to use SGT mapping type drm/vmwgfx: Use match_mapping instead of dummy calls accel/habanalabs: Use the SGT mapping type drm/xe/dma-buf: Use the SGT mapping type drm/amdgpu: Use the SGT mapping type vfio/pci: Change the DMA-buf exporter to use mapping_type dma-buf: Update dma_buf_phys_vec_to_sgt() to use the SGT mapping type iio: buffer: convert to use the SGT mapping type functionfs: convert to use the SGT mapping type dma-buf: Remove unused SGT stuff from the common structures treewide: Rename dma_buf_map_attachment(_unlocked) to dma_buf_sgt_ treewide: Rename dma_buf_unmap_attachment(_unlocked) to dma_buf_sgt_* treewide: Rename dma_buf_attach() to dma_buf_sgt_attach() treewide: Rename dma_buf_dynamic_attach() to dma_buf_sgt_dynamic_attach() dma-buf: Add the Physical Address List DMA mapping type vfio/pci: Add physical address list support to DMABUF iommufd: Use the PAL mapping type instead of a vfio function iommufd: Support DMA-bufs with multiple physical ranges iommufd/selftest: Check multi-phys DMA-buf scenarios dma-buf: Add kunit tests for mapping type Documentation/gpu/todo.rst | 2 +- drivers/accel/amdxdna/amdxdna_gem.c | 14 +- drivers/accel/amdxdna/amdxdna_ubuf.c | 10 +- drivers/accel/habanalabs/common/memory.c | 54 ++- drivers/accel/ivpu/ivpu_gem.c | 10 +- drivers/accel/ivpu/ivpu_gem_userptr.c | 11 +- drivers/accel/qaic/qaic_data.c | 8 +- drivers/dma-buf/Makefile | 1 + drivers/dma-buf/dma-buf-mapping.c | 186 ++++++++- drivers/dma-buf/dma-buf.c | 180 ++++++--- drivers/dma-buf/heaps/cma_heap.c | 12 +- drivers/dma-buf/heaps/system_heap.c | 13 +- drivers/dma-buf/st-dma-mapping.c | 373 ++++++++++++++++++ drivers/dma-buf/udmabuf.c | 8 +- drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 98 +++-- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 +- drivers/gpu/drm/armada/armada_gem.c | 33 +- drivers/gpu/drm/drm_gem_shmem_helper.c | 2 +- drivers/gpu/drm/drm_prime.c | 31 +- drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 18 +- drivers/gpu/drm/i915/gem/i915_gem_object.c | 2 +- .../drm/i915/gem/selftests/i915_gem_dmabuf.c | 8 +- .../gpu/drm/i915/gem/selftests/mock_dmabuf.c | 8 +- drivers/gpu/drm/msm/msm_gem_prime.c | 7 +- drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 11 +- drivers/gpu/drm/tegra/gem.c | 33 +- drivers/gpu/drm/virtio/virtgpu_prime.c | 23 +- drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 32 +- drivers/gpu/drm/xe/xe_bo.c | 18 +- drivers/gpu/drm/xe/xe_dma_buf.c | 61 +-- drivers/iio/industrialio-buffer.c | 15 +- drivers/infiniband/core/umem_dmabuf.c | 15 +- drivers/iommu/iommufd/io_pagetable.h | 4 +- drivers/iommu/iommufd/iommufd_private.h | 8 - drivers/iommu/iommufd/iommufd_test.h | 7 + drivers/iommu/iommufd/pages.c | 85 ++-- drivers/iommu/iommufd/selftest.c | 177 ++++++--- .../media/common/videobuf2/videobuf2-core.c | 2 +- .../common/videobuf2/videobuf2-dma-contig.c | 26 +- .../media/common/videobuf2/videobuf2-dma-sg.c | 21 +- .../common/videobuf2/videobuf2-vmalloc.c | 13 +- .../platform/nvidia/tegra-vde/dmabuf-cache.c | 9 +- drivers/misc/fastrpc.c | 21 +- drivers/tee/tee_heap.c | 13 +- drivers/usb/gadget/function/f_fs.c | 11 +- drivers/vfio/pci/vfio_pci_dmabuf.c | 79 ++-- drivers/xen/gntdev-dmabuf.c | 29 +- include/linux/dma-buf-mapping.h | 297 ++++++++++++++ include/linux/dma-buf.h | 168 ++++---- io_uring/zcrx.c | 9 +- net/core/devmem.c | 14 +- samples/vfio-mdev/mbochs.c | 10 +- sound/soc/fsl/fsl_asrc_m2m.c | 12 +- tools/testing/selftests/iommu/iommufd.c | 43 ++ tools/testing/selftests/iommu/iommufd_utils.h | 17 + 55 files changed, 1764 insertions(+), 614 deletions(-) create mode 100644 drivers/dma-buf/st-dma-mapping.c base-commit: c63e5a50e1dd291cd95b04291b028fdcaba4c534 -- 2.43.0

3 days, 15 hours

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