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2009-01-22MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatc ↵merge
hes-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green <andy@openmoko.com> fix-stray-endmenu.patch Signed-off-by: Andy Green <andy@openmoko.com>
2008-10-18amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errorsAndreas Herrmann
We are on 64-bit so better use u64 instead of u32 to deal with addresses: static void __init iommu_set_device_table(struct amd_iommu *iommu) { u64 entry; ... entry = virt_to_phys(amd_iommu_dev_table); ... (I am wondering why gcc 4.2.x did not warn about the assignment between u32 and unsigned long.) Cc: iommu@lists.linux-foundation.org Cc: stable@kernel.org Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-10-12x86, amd-iommu: propagate PCI device enabling errorIngo Molnar
propagate an error in enabling the PCI device. Also eliminates this warning: arch/x86/kernel/amd_iommu_init.c: In function ‘init_iommu_one’: arch/x86/kernel/amd_iommu_init.c:726: warning: ignoring return value of ‘pci_enable_device’, declared with attribute warn_unused_result Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-22iommu: remove fullflush and nofullflush in IOMMU generic optionFUJITA Tomonori
This patch against tip/x86/iommu virtually reverts 2842e5bf3115193f05dc9dac20f940e7abf44c1a. But just reverting the commit breaks AMD IOMMU so this patch also includes some fixes. The above commit adds new two options to x86 IOMMU generic kernel boot options, fullflush and nofullflush. But such change that affects all the IOMMUs needs more discussion (all IOMMU parties need the chance to discuss it): http://lkml.org/lkml/2008/9/19/106 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: use cmd_buf_size when freeing the command bufferJoerg Roedel
The command buffer release function uses the CMD_BUF_SIZE macro for get_order. Replace this with iommu->cmd_buf_size which is more reliable about the actual size of the buffer. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: calculate IVHD size with a functionJoerg Roedel
The current calculation of the IVHD entry size is hard to read. So move this code to a seperate function to make it more clear what this calculation does. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: remove unnecessary cast to u64 in the init codeJoerg Roedel
The ctrl variable is only u32 and readl also returns a 32 bit value. So the cast to u64 is pointless. Remove it with this patch. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: free domain bitmap with its allocation orderJoerg Roedel
The amd_iommu_pd_alloc_bitmap is allocated with a calculated order and freed with order 1. This is not a bug since the calculated order always evaluates to 1, but its unclean code. So replace the 1 with the calculation in the release path. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: allow IO page faults from devicesJoerg Roedel
There is a bit in the device entry to suppress all IO page faults generated by a device. This bit was set until now because there was no event logging. Now that there is event logging this patch allows IO page faults from devices to see them in the kernel log. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: enable event loggingJoerg Roedel
The code to log IOMMU events is in place now. So enable event logging with this patch. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: add event handling codeJoerg Roedel
This patch adds code for polling and printing out events generated by the AMD IOMMU. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: add MSI interrupt supportJoerg Roedel
The AMD IOMMU can generate interrupts for various reasons. This patch adds the basic interrupt enabling infrastructure to the driver. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: save pci_dev instead of devidJoerg Roedel
We need the pci_dev later anyways to enable MSI for the IOMMU hardware. So remove the devid pointing to the BDF and replace it with the pci_dev structure where the IOMMU is implemented. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: save pci segment from ACPI tablesJoerg Roedel
This patch adds the pci_seg field to the amd_iommu structure and fills it with the corresponding value from the ACPI table. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: add event buffer allocationJoerg Roedel
This patch adds the allocation of a event buffer for each AMD IOMMU in the system. The hardware will log events like device page faults or other errors to this buffer once this is enabled. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19AMD IOMMU: implement lazy IO/TLB flushingJoerg Roedel
The IO/TLB flushing on every unmaping operation is the most expensive part in AMD IOMMU code and not strictly necessary. It is sufficient to do the flush before any entries are reused. This is patch implements lazy IO/TLB flushing which does exactly this. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-15x86, AMD IOMMU: initialize dma_ops after sysfs registrationJoerg Roedel
If sysfs registration fails all memory used by IOMMU is freed. This happens after dma_ops initialization and the functions will access the freed memory then. Fix this by initializing dma_ops after the sysfs registration. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-15x86, AMD IOMMU: initialize device table properlyJoerg Roedel
This patch adds device table initializations which forbids memory accesses for devices per default and disables all page faults. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-26x86, AMD IOMMU: include amd_iommu_last_bdf in device initializationJoerg Roedel
All the values read while searching for amd_iommu_last_bdf are defined as inclusive. Let the code handle this value as such. Found by Wei Wang. Thanks Wei. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Cc: Wei Wang <wei.wang2@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-21Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', ↵Ingo Molnar
'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
2008-07-18AMD IOMMU: set iommu for device from ACPI code tooJoerg Roedel
The device<->iommu relationship has to be set from the information in the ACPI table too. This patch adds this logic to the driver. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: replace DEVID macro with a functionJoerg Roedel
This patch replaces the DEVID macro with a function and uses them where apropriate (also in the core code). Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: replace self made size parsing with memparse callJoerg Roedel
This patch replaces the self-made parsing of the amd_iommu_size option with the generic memparse function call. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: replace memset with __GFP_ZERO for table allocationJoerg Roedel
This patch removes the memset from the data structure initialization code and allocate the structures with the __GFP_ZERO flag. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: do runtime list initialization at compile timeJoerg Roedel
This patch changes the list initialization for the iommu list and the unity map list from runtime to compile time. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: use true/false instead of 0/1 for bool valueJoerg Roedel
This patch replaces the integer values used for the bool variable in ACPI scanning code with true and false. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: remove unneeded initializations from command buffer allocationJoerg Roedel
This patch removes an unneeded initialization from the alloc_command_buffer function and replaces a memset with __GFP_ZERO. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: remove unnecessary free checks from init codeJoerg Roedel
This patch removes unnecessary checks before memory is released. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: replace TBL_SIZE macro with a functionJoerg Roedel
This patch converts the TBL_SIZE macro in the init code to a function. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: replace UPDATE_LAST_BDF macro with a functionJoerg Roedel
This patch replaces the UPDATE_LAST_BDF macro in the init code with the update_last_devid function. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86, AMD IOMMU: add comments to the initialization codeJoerg Roedel
This patch adds some comments to the AMD IOMMU initialization code to increase its readability. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86: make only GART code include gart.hFUJITA Tomonori
gart.h has only GART-specific stuff. Only GART code needs it. Other IOMMU stuff should include iommu.h instead of gart.h. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09x86, AMD IOMMU: ignore detection of GART IOMMUJoerg Roedel
One of the last IOMMU updates covered a bug in the AMD IOMMU code. The early detection code does not succeed if the GART is already detected. This patch fixes this. Cc: Robert Richter <robert.richter@amd.com> Cc: Bhavna Sarathy <Bhavna.Sarathy@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: Joerg Roedel <joerg.roedel@amd.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Bhavna Sarathy <Bhavna.Sarathy@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-04x86, AMD IOMMU: remove unnecessary code from the iommu_enable functionJoerg Roedel
This code removes a leftover from the iommu_enable function. The ctrl variable is assigned but never used. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Cc: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-04x86, AMD IOMMU: don't try to init IOMMU if early detect code did not detect oneJoerg Roedel
This patch adds a check if the early detect code has found AMD IOMMU hardware descriptions and does not try to initialize hardware if the check failed. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Cc: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-04x86, AMD IOMMU: honor iommu=off instead of amd_iommu=offJoerg Roedel
This patch removes the amd_iommu=off kernel parameter and honors the generic iommu=off parameter for the same purpose. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Cc: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-30x86, AMD IOMMU: disable suspend/resume with IOMMU enabled (for now)Joerg Roedel
This patch disables suspend/resume on machines with AMD IOMMU enabled. Real suspend/resume support for AMD IOMMU is currently being worked on. Until this is ready it will be disabled to avoid data corruption when the IOMMU is not properly re-enabled at resume. The patch is based on a similar patch for the GART driver written by Pavel Machek. The overall driver merged into tip/master is tested with parallel disk and network loads and showed no problems in a test running for 3 days. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU, build fix #2Ingo Molnar
fix: arch/x86/kernel/amd_iommu.c: In function ‘amd_iommu_init_dma_ops': arch/x86/kernel/amd_iommu.c:940: error: lvalue required as left operand of assignment arch/x86/kernel/amd_iommu.c:941: error: lvalue required as left operand of assignment due to !CONFIG_GART_IOMMU. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: initialize dma_ops from IOMMU initialization and enable IOMMUsJoerg Roedel
This patch adds a call to the driver specific dma_ops initialization routine from the AMD IOMMU hardware initialization. Further it adds the necessary code to finally enable AMD IOMMU hardware. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add amd_iommu.h to export functions to the generic x86 dma codeJoerg Roedel
This patch adds the amd_iommu.h file which will be included in the generic code. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add kernel command line parameters for AMD IOMMUJoerg Roedel
This patch adds two parameters to the kernel command line to control behavior of the AMD IOMMU. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add early detection codeJoerg Roedel
This patch adds code to detect an AMD IOMMU early during boot before the early detection code of other IOMMUs run. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: clue initialization code togetherJoerg Roedel
This patch puts the AMD IOMMU ACPI table parsing and hardware initialization functions together to the main intialization routine. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add functions to parse IOMMU memory mapping requirements for ↵Joerg Roedel
devices This patch adds the functions to parse the information about IOMMU exclusion ranges and required unity mappings for the devices handled by the IOMMU. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add detect code for AMD IOMMU hardwareJoerg Roedel
This patch adds the detection of AMD IOMMU hardware provided on information from ACPI provided by the BIOS. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add functions for IOMMU hardware initialization from ACPIJoerg Roedel
This patch adds functions to initialize the IOMMU hardware with information from ACPI and PCI. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add device table initialization functionsJoerg Roedel
This patch adds functions necessary to initialize the device table from the ACPI definitions. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add command buffer (de-)allocationJoerg Roedel
This patch adds the functions to allocate and deallocate the command buffer for one IOMMU in the system. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add functions for programming IOMMU MMIO spaceJoerg Roedel
This patch adds the functions required to programm the IOMMU with the MMIO space. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-27x86, AMD IOMMU: add functions for mapping/unmapping the MMIO spaceJoerg Roedel
This patch contains two functions to map and unmap the MMIO region of an IOMMU. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
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