- 18 Jun, 2021 22 commits
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Koby Elbaz authored
Due to new security restrictions, GIC controller can no longer be accessed from user/kernel. To monitor that, a new status bit will be read from preboot caps, indicating whether direct access to GIC is blocked. In case it is blocked, driver will use scratchpad registers instead of using GIC interface on two main scenarios: The first of which LKD triggers interrupts to F/W through GIC, and the second of when LKD configures all engines/QMANs to write to GIC when they want to report an error. From F/W perspective, it will poll on all SPs, and once IRQ number is retrieved, SP register is cleared, and it will perform the write to the GIC to trigger the IRQ handler. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
Maintain both STS1 and ERR1 registers used for status communication with F/W. Those are not maintained as we currently have less than 31 statuses/error defined and so LKD did not refer to those register. The reason to read them now is to try to support future f/w versions with current driver. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
When attempting to read FW component's version we should break if input FW component is invalid in order to avoid using uninitialized destination pointer. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
When setting "DMA mask from FW" we are reading PSOC_GLOBAL_CONF register which is allowed only once FW has done it's iATU configuration. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Oded Gabbay authored
Print the user given pointer and error code on failure to get user pages for easier debugging. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Omer Shpigelman authored
Change casting code according to kernel coding style. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Oded Gabbay authored
Some users might want to implement their own policy of when the device is unusable so we need to ignore this status in the driver and continue loading as normal. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
Implementing dynamic linux image load to the device. This patch also implements the FW communication steps during the boot-fit. This patch also enables the dynamic protocol based on the compatibility flag. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
Implementing dynamic boot fit image load to the device. Note that some necessary adjustment were added to the static loader as well so that both loaders can co-exist. as this is not the final FW load stage the dynamic FW load is still forced to be non functional. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Oded Gabbay authored
Hint address failure that results in a valid mapping with an address that was allocated by the driver is not a real failure. Therefore, the driver shouldn't notify about this in kernel log. The user is responsible to check the returned address. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Guy Nisan authored
Indicate "progress" instead of "error" when reporting progress status. Change "u-boot stopped by user" to "Cannot boot" message as CPU_BOOT_STATUS_UBOOT_NOT_READY may indicate a fatal error that prevent u-boot from loading firmware. Signed-off-by: Guy Nisan <gnisan@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ofir Bitton authored
iATU (internal Address Translation Unit of the PCI controller) configuration is being done by FW right after driver enables the PCI device. Hence, driver must add a minor sleep afterwards in order to make sure FW finishes configuring iATU regions. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Oded Gabbay authored
Update the common and GAUDI firmware header files to the latest version. The latest version use the correct endianness types so this commit also contains minor changes to the code to use the correct conversions when reading/writing to the firmware structures. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
LKD has interfaces in which it receives device address. For instance the debugfs_read/write variants receives device address for CFG/SRAM/DRAM for read/write and need to translate to the mapped PCI BAR address. In addition, the dynamic FW load protocol dictates that the address to which the LKD will copy the image for the next FW component will be received as a device address and can be placed either in SRAM or DRAM. We need to distinguish those regions as the access methods to those regions are different (in DRAM we possibly need to set the BAR base). Looking forward this code will be used to remove duplicated code in the debugfs_read/write that search the memory region for the input device address. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
First stage of the dynamic FW load protocol is to reset the protocol to avoid residues from former load cycles. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
Instead of using multiple ASIC specific copies of functions to read the FW version use single common one that gets ASIC specific arguments. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Alon Mizrahi authored
Use mmu cache range invalidation instead of entire cache invalidation because it yields better performance. In GOYA and GAUDI, always use entire cache invalidation because these ASICs don't support range invalidation. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
Replace multiple arguments to init device CPU function by passing firmware loader managing structure that is initialized per ASIC with the loader parameters. In addition, the FW loader management structure is now part of the habanalabs device, this way the loader parameters will be able to be communicated across various boot stages. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
This refactor is needed due to the dynamic FW load in which requesting the FW file (and getting its attributes) is not immediately followed by copying FW file content. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Ohad Sharabi authored
Start the skeleton for the dynamic F/W load by marking current preboot code path as legacy. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Oded Gabbay authored
Update the firmware files to the latest from the firmware team. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Moti Haimovski authored
On PLDM, in case of NIC hangs, the ELBI reset to take much longer than expected. As a result an increase in the ELBI reset timeout is required. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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- 17 Jun, 2021 8 commits
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/mc-io.c:70: warning: Function parameter or member 'dpmcp_dev' not described in 'fsl_create_mc_io' Cc: Stuart Yoder <stuyoder@gmail.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-8-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/fsl-mc-msi.c:164: warning: Function parameter or member 'fwnode' not described in 'fsl_mc_msi_create_irq_domain' drivers/bus/fsl-mc/fsl-mc-msi.c:164: warning: Excess function parameter 'np' description in 'fsl_mc_msi_create_irq_domain' Cc: Stuart Yoder <stuyoder@gmail.com> Cc: German Rivera <German.Rivera@freescale.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-7-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/fsl-mc-allocator.c:271: warning: Function parameter or member 'new_mc_adev' not described in 'fsl_mc_object_allocate' drivers/bus/fsl-mc/fsl-mc-allocator.c:271: warning: Excess function parameter 'new_mc_dev' description in 'fsl_mc_object_allocate' drivers/bus/fsl-mc/fsl-mc-allocator.c:417: warning: Function parameter or member 'mc_bus_dev' not described in 'fsl_mc_cleanup_irq_pool' drivers/bus/fsl-mc/fsl-mc-allocator.c:417: warning: expecting prototype for Teardown the interrupt pool associated with an fsl(). Prototype was for fsl_mc_cleanup_irq_pool() instead drivers/bus/fsl-mc/fsl-mc-allocator.c:443: warning: Function parameter or member 'mc_dev' not described in 'fsl_mc_allocate_irqs' drivers/bus/fsl-mc/fsl-mc-allocator.c:443: warning: expecting prototype for Allocate the IRQs required by a given fsl(). Prototype was for fsl_mc_allocate_irqs() instead drivers/bus/fsl-mc/fsl-mc-allocator.c:586: warning: Function parameter or member 'mc_dev' not described in 'fsl_mc_allocator_probe' drivers/bus/fsl-mc/fsl-mc-allocator.c:618: warning: Function parameter or member 'mc_dev' not described in 'fsl_mc_allocator_remove' Cc: Stuart Yoder <stuyoder@gmail.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-6-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/dprc-driver.c:360: warning: Function parameter or member 'alloc_interrupts' not described in 'dprc_scan_container' drivers/bus/fsl-mc/dprc-driver.c:383: warning: Function parameter or member 'irq_num' not described in 'dprc_irq0_handler' drivers/bus/fsl-mc/dprc-driver.c:383: warning: Excess function parameter 'irq' description in 'dprc_irq0_handler' drivers/bus/fsl-mc/dprc-driver.c:394: warning: Function parameter or member 'irq_num' not described in 'dprc_irq0_handler_thread' drivers/bus/fsl-mc/dprc-driver.c:394: warning: Excess function parameter 'irq' description in 'dprc_irq0_handler_thread' Cc: Stuart Yoder <stuyoder@gmail.com> Cc: German Rivera <German.Rivera@freescale.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-5-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/dprc.c:345: warning: Function parameter or member 'attr' not described in 'dprc_get_attributes' drivers/bus/fsl-mc/dprc.c:521: warning: Function parameter or member 'obj_type' not described in 'dprc_get_obj_region' Cc: Stuart Yoder <stuyoder@gmail.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-4-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/fsl-mc-bus.c:30: warning: expecting prototype for Default DMA mask for devices on a fsl(). Prototype was for FSL_MC_DEFAULT_DMA_MASK() instead drivers/bus/fsl-mc/fsl-mc-bus.c:45: warning: Function parameter or member 'fsl_mc_regs' not described in 'fsl_mc' drivers/bus/fsl-mc/fsl-mc-bus.c:124: warning: Function parameter or member 'dev' not described in 'fsl_mc_bus_uevent' drivers/bus/fsl-mc/fsl-mc-bus.c:124: warning: Function parameter or member 'env' not described in 'fsl_mc_bus_uevent' drivers/bus/fsl-mc/fsl-mc-bus.c:480: warning: Function parameter or member 'mc_driver' not described in '__fsl_mc_driver_register' drivers/bus/fsl-mc/fsl-mc-bus.c:480: warning: Function parameter or member 'owner' not described in '__fsl_mc_driver_register' drivers/bus/fsl-mc/fsl-mc-bus.c:511: warning: Function parameter or member 'mc_driver' not described in 'fsl_mc_driver_unregister' drivers/bus/fsl-mc/fsl-mc-bus.c:571: warning: Function parameter or member 'dev' not described in 'fsl_mc_get_root_dprc' drivers/bus/fsl-mc/fsl-mc-bus.c:571: warning: Function parameter or member 'root_dprc_dev' not described in 'fsl_mc_get_root_dprc' drivers/bus/fsl-mc/fsl-mc-bus.c:739: warning: Function parameter or member 'dev' not described in 'fsl_mc_is_root_dprc' drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'obj_desc' not described in 'fsl_mc_device_add' drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'mc_io' not described in 'fsl_mc_device_add' drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'parent_dev' not described in 'fsl_mc_device_add' drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'new_mc_dev' not described in 'fsl_mc_device_add' drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: expecting prototype for Add a newly discovered fsl(). Prototype was for fsl_mc_device_add() instead drivers/bus/fsl-mc/fsl-mc-bus.c:1066: warning: Function parameter or member 'pdev' not described in 'fsl_mc_bus_probe' drivers/bus/fsl-mc/fsl-mc-bus.c:1190: warning: Function parameter or member 'pdev' not described in 'fsl_mc_bus_remove' Cc: Stuart Yoder <stuyoder@gmail.com> Cc: German Rivera <German.Rivera@freescale.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-3-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/mc-sys.c:20: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/bus/fsl-mc/mc-sys.c:151: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/bus/fsl-mc/mc-sys.c:197: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/bus/fsl-mc/mc-sys.c:237: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Cc: Stuart Yoder <stuyoder@gmail.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-2-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/bus/fsl-mc/mc-io.c:53: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/bus/fsl-mc/mc-io.c:126: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Cc: Stuart Yoder <stuyoder@gmail.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210617110500.15907-1-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 15 Jun, 2021 10 commits
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Huilong Deng authored
Macros should not use a trailing semicolon. Signed-off-by: Huilong Deng <denghuilong@cdjrlc.com> Signed-off-by: Johannes Thumshirn <jth@kernel.org> Link: https://lore.kernel.org/r/fe520620eeddaa2ed8c669125f9b673c89d6b5a5.1623768541.git.johannes.thumshirn@wdc.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Tom Rix authored
checkpatch looks for the tag on the first line. So delete empty first line Signed-off-by: Tom Rix <trix@redhat.com> Link: https://lore.kernel.org/r/20210610214438.3161140-4-trix@redhat.comAcked-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christophe JAILLET authored
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'add_card()', GFP_KERNEL can be used because this flag is already used a few lines above and no lock is taken in the between. While at it, also remove some useless casting. @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/e1d7fa558f31abf294659a9d4edcc1e4fc065fab.1623590706.git.christophe.jaillet@wanadoo.frSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clayton Casciato authored
Fixed a coding style issue. Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Clayton Casciato <majortomtosourcecontrol@gmail.com> Link: https://lore.kernel.org/r/20210613203031.23721-1-majortomtosourcecontrol@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Samuel Thibault authored
The existing code was assuming that bright color names can be forged by just prepending the "bright" word to the color name. But some langages may rather append it, or require completely different names ("grey" is actually already an example). From: Trevor Astrope <astrope@tabbweb.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Link: https://lore.kernel.org/r/20210613195909.n7ssor6iqeo3pcno@beginSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jeremy Linton authored
If the symlink is unable to be created, the driver goes ahead and continues device creation. Instead lets propagate the failure, and fail the probe. Link: https://lore.kernel.org/r/20210526204042.2681700-1-jeremy.linton@arm.com Fixes: 8a7365c2 ("coresight: Expose device connections via sysfs") Cc: stable@vger.kernel.org Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210614175901.532683-7-mathieu.poirier@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Sai Prakash Ranjan authored
commit 6f755e85 ("coresight: Add helper for inserting synchronization packets") removed trailing '\0' from barrier_pkt array and updated the call sites like etb_update_buffer() to have proper checks for barrier_pkt size before read but missed updating tmc_update_etf_buffer() which still reads barrier_pkt past the array size resulting in KASAN out-of-bounds bug. Fix this by adding a check for barrier_pkt size before accessing like it is done in etb_update_buffer(). BUG: KASAN: global-out-of-bounds in tmc_update_etf_buffer+0x4b8/0x698 Read of size 4 at addr ffffffd05b7d1030 by task perf/2629 Call trace: dump_backtrace+0x0/0x27c show_stack+0x20/0x2c dump_stack+0x11c/0x188 print_address_description+0x3c/0x4a4 __kasan_report+0x140/0x164 kasan_report+0x10/0x18 __asan_report_load4_noabort+0x1c/0x24 tmc_update_etf_buffer+0x4b8/0x698 etm_event_stop+0x248/0x2d8 etm_event_del+0x20/0x2c event_sched_out+0x214/0x6f0 group_sched_out+0xd0/0x270 ctx_sched_out+0x2ec/0x518 __perf_event_task_sched_out+0x4fc/0xe6c __schedule+0x1094/0x16a0 preempt_schedule_irq+0x88/0x170 arm64_preempt_schedule_irq+0xf0/0x18c el1_irq+0xe8/0x180 perf_event_exec+0x4d8/0x56c setup_new_exec+0x204/0x400 load_elf_binary+0x72c/0x18c0 search_binary_handler+0x13c/0x420 load_script+0x500/0x6c4 search_binary_handler+0x13c/0x420 exec_binprm+0x118/0x654 __do_execve_file+0x77c/0xba4 __arm64_compat_sys_execve+0x98/0xac el0_svc_common+0x1f8/0x5e0 el0_svc_compat_handler+0x84/0xb0 el0_svc_compat+0x10/0x50 The buggy address belongs to the variable: barrier_pkt+0x10/0x40 Memory state around the buggy address: ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00 ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffffd05b7d1000: 00 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03 ^ ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa ================================================================== Link: https://lore.kernel.org/r/20210505093430.18445-1-saiprakash.ranjan@codeaurora.org Fixes: 0c3fc4d5 ("coresight: Add barrier packet for synchronisation") Cc: stable@vger.kernel.org Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210614175901.532683-6-mathieu.poirier@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Junhao He authored
"attr" is checked by perf framework, so remove the redundant check in etm4_parse_event_config(). Link: https://lore.kernel.org/r/1620912469-52222-4-git-send-email-liuqi115@huawei.comSigned-off-by: Junhao He <hejunhao2@hisilicon.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210614175901.532683-5-mathieu.poirier@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Junhao He authored
Remove unnecessary assignment of "path" in coresight_release_path(). Link: https://lore.kernel.org/r/1620912469-52222-3-git-send-email-liuqi115@huawei.comSigned-off-by: Junhao He <hejunhao2@hisilicon.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210614175901.532683-4-mathieu.poirier@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Junhao He authored
Currently the pointer "sink" might be checked before initialized. Fix this by initializing this pointer. Link: https://lore.kernel.org/r/1620912469-52222-2-git-send-email-liuqi115@huawei.com Fixes: 6d578258 ("coresight: Make sysfs functional on topologies with per core sink") Signed-off-by: Junhao He <hejunhao2@hisilicon.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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