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2020-12-15lkdtm: disable KASAN for rodata.oMarco Elver1-0/+1
Building lkdtm with KASAN and Clang 11 or later results in the following error when attempting to load the module: kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle page fault for address: ffffffffc019cd70 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0011) - permissions violation ... RIP: 0010:asan.module_ctor+0x0/0xffffffffffffa290 [lkdtm] ... Call Trace: do_init_module+0x17c/0x570 load_module+0xadee/0xd0b0 __x64_sys_finit_module+0x16c/0x1a0 do_syscall_64+0x34/0x50 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The reason is that rodata.o generates a dummy function that lives in .rodata to validate that .rodata can't be executed; however, Clang 11 adds KASAN globals support by generating module constructors to initialize globals redzones. When Clang 11 adds a module constructor to rodata.o, it is also added to .rodata: any attempt to call it on initialization results in the above error. Therefore, disable KASAN instrumentation for rodata.o. Link: https://lkml.kernel.org/r/20201214191413.3164796-1-elver@google.com Signed-off-by: Marco Elver <elver@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-14Merge tag 'drm-next-2020-12-11' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-2/+4
Pull drm updates from Dave Airlie: "Not a huge amount of big things here, AMD has support for a few new HW variants (vangogh, green sardine, dimgrey cavefish), Intel has some more DG1 enablement. We have a few big reworks of the TTM layers and interfaces, GEM and atomic internal API reworks cross tree. fbdev is marked orphaned in here as well to reflect the current reality. core: - documentation updates - deprecate DRM_FORMAT_MOD_NONE - atomic crtc enable/disable rework - GEM convert drivers to gem object functions - remove SCATTER_LIST_MAX_SEGMENT sched: - avoid infinite waits ttm: - remove AGP support - don't modify caching for swapout - ttm pinning rework - major TTM reworks - new backend allocator - multihop support vram-helper: - top down BO placement fix - TTM changes - GEM object support displayport: - DP 2.0 DPCD prep work - DP MST extended DPCD caps fbdev: - mark as orphaned amdgpu: - Initial Vangogh support - Green Sardine support - Dimgrey Cavefish support - SG display support for renoir - SMU7 improvements - gfx9+ modiifier support - CI BACO fixes radeon: - expose voltage via hwmon on SUMO amdkfd: - fix unique id handling i915: - more DG1 enablement - bigjoiner support - integer scaling filter support - async flip support - ICL+ DSI command mode - Improve display shutdown - Display refactoring - eLLC machine fbdev loading fix - dma scatterlist fixes - TGL hang fixes - eLLC display buffer caching on SKL+ - MOCS PTE seeting for gen9+ msm: - Shutdown hook - GPU cooling device support - DSI 7nm and 10nm phy/pll updates - sm8150/sm2850 DPU support - GEM locking re-work - LLCC system cache support aspeed: - sysfs output config support ast: - LUT fix - new display mode gma500: - remove 2d framebuffer accel panfrost: - move gpu reset to a worker exynos: - new HDMI mode support mediatek: - MT8167 support - yaml bindings - MIPI DSI phy code moved etnaviv: - new perf counter - more lockdep annotation hibmc: - i2c DDC support ingenic: - pixel clock reset fix - reserved memory support - allow both DMA channels at once - different pixel format support - 30/24/8-bit palette modes tilcdc: - don't keep vblank irq enabled vc4: - new maintainer added - DSI registration fix virtio: - blob resource support - host visible and cross-device support - uuid api support" * tag 'drm-next-2020-12-11' of git://anongit.freedesktop.org/drm/drm: (1754 commits) drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs drm/amdgpu: fix size calculation with stolen vga memory drm/amdgpu: remove amdgpu_ttm_late_init and amdgpu_bo_late_init drm/amdgpu: free the pre-OS console framebuffer after the first modeset drm/amdgpu: enable runtime pm using BACO on CI dGPUs drm/amdgpu/cik: enable BACO reset on Bonaire drm/amd/pm: update smu10.h WORKLOAD_PPLIB setting for raven drm/amd/pm: remove one unsupported smu function for vangogh drm/amd/display: setup system context for APUs drm/amd/display: add S/G support for Vangogh drm/amdkfd: Fix leak in dmabuf import drm/amdgpu: use AMDGPU_NUM_VMID when possible drm/amdgpu: fix sdma instance fw version and feature version init drm/amd/pm: update driver if version for dimgrey_cavefish drm/amd/display: 3.2.115 drm/amd/display: [FW Promotion] Release 0.0.45 drm/amd/display: Revert DCN2.1 dram_clock_change_latency update drm/amd/display: Enable gpu_vm_support for dcn3.01 drm/amd/display: Fixed the audio noise during mode switching with HDCP mode on drm/amd/display: Add wm table for Renoir ...
2020-12-11Merge tag 'at24-fixes-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-currentWolfram Sang1-1/+0
at24 fixes for v5.10 - fix NVMEM name with custom AT24 device name
2020-12-10misc: pvpanic: Replace OF headers by mod_devicetable.hAndy Shevchenko1-2/+2
There is no use for OF headers in the driver, but mod_devicetable.h must be included. Update driver accordingly. Cc: Peng Hao <peng.hao2@zte.com.cn> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20201209203642.27648-5-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-10misc: pvpanic: Combine ACPI and platform driversAndy Shevchenko1-113/+17
There is nothing special in the driver that requires to have a special ACPI driver for it. Combine both into simple platform driver. Cc: Peng Hao <peng.hao2@zte.com.cn> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20201209203642.27648-4-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09altera-stapl: remove the unreached switch caseKaixu Xia1-5/+0
The value of the variable status must be one of the 0, -EIO and -EILSEQ, so the switch case -ENODATA is unreached. Remove it. Reported-by: Tosk Robot <tencent_os_robot@tencent.com> Signed-off-by: Kaixu Xia <kaixuxia@tencent.com> Link: https://lore.kernel.org/r/1605284071-6901-1-git-send-email-kaixuxia@tencent.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: pci_endpoint_test: fix return value of error branchXiongfeng Wang1-2/+6
We return 'err' in the error branch, but this variable may be set as zero before. Fix it by setting 'err' as a negative value before we goto the error label. Fixes: e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Link: https://lore.kernel.org/r/1605790158-6780-1-git-send-email-wangxiongfeng2@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: genwqe: Use dma_set_mask_and_coherent to simplify codeChristophe JAILLET1-17/+2
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201201210147.7917-1-christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: rtsx: rts5249 support runtime PMRicky Wu3-6/+127
rtsx_pcr: add callback functions to support runtime PM add delay_work to put device to D3 after idle over 10 sec rts5249: add extra init flow for rtd3 and set rtd3_en from config setting rtsx_pci_sdmmc: child device support autosuspend Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20201202065857.19412-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: rtsx: modify and fix init_hw functionRicky Wu1-3/+5
changed rtsx_pci_disable_aspm() to rtsx_disable_aspm() do not access ASPM configuration directly changed pcie_capability_write_word() to _clear_and_set_word() make sure only change PCI_EXP_LNKCTL bit8 make sure ASPM disable after extra_init_hw() Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20201202063228.18319-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: rtsx: modify en/disable aspm functionRicky Wu1-3/+9
enable/disable device ASPM function: changed write ASPM configuration directly to use write register Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20201202063124.18262-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: vmw_vmci: fix kernel info-leak by initializing dbells in vmci_ctx_get_chkpt_doorbells()Anant Thazhemadam1-1/+1
A kernel-infoleak was reported by syzbot, which was caused because dbells was left uninitialized. Using kzalloc() instead of kmalloc() fixes this issue. Reported-by: syzbot+a79e17c39564bedf0930@syzkaller.appspotmail.com Tested-by: syzbot+a79e17c39564bedf0930@syzkaller.appspotmail.com Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> Link: https://lore.kernel.org/r/20201122224534.333471-1-anant.thazhemadam@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc/sgi-xp: Replace in_interrupt() usageThomas Gleixner3-6/+17
The usage of in_interrupt() in xpc_partition_disengaged() is clearly intended to avoid canceling the timeout timer when the function is invoked from the timer callback. While in_interrupt() is deprecated and ill defined as it does not provide what the name suggests it catches the intended case. Add an argument to xpc_partition_disengaged() which is true if called from timer and otherwise false. Use del_timer_sync() instead of del_singleshot_timer_sync() which is the same thing. Note: This does not prevent reentrancy into the function as the function has no concurrency control and timer callback and regular task context callers can happen concurrently on different CPUs or the timer can interrupt the task context before it is able to cancel it. While the only driver which is providing the arch_xpc_ops callbacks (xpc_uv) seems not to have a reentrancy problem and the only negative effect would be a double dev_info() entry in dmesg, the whole mechanism is conceptually broken. But that's not subject of this cleanup endeavour and left as an exercise to the folks who might have interest to make that code fully correct. [bigeasy: Add the argument, use del_timer_sync().] Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Cliff Whickman <cpw@sgi.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Robin Holt <robinmholt@gmail.com> Cc: Steve Wahl <steve.wahl@hpe.com> Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Russ Anderson <russ.anderson@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20201119103151.ppo45mj53ulbxjx4@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09misc: isl29003: Fix typo for get/set modeZhou Xingxing1-2/+2
The operation of get/set mode was same with get/set resolution. It is a typo absolutely. This patch updates these bits operated by get/set mode. Signed-off-by: Zhou Xingxing <zhou_x1@hoperun.com> Link: https://lore.kernel.org/r/1607334545-2091-1-git-send-email-zhou_x1@hoperun.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09lkdtm: don't move ctors to .rodataMark Rutland2-2/+2
When building with KASAN and LKDTM, clang may implictly generate an asan.module_ctor function in the LKDTM rodata object. The Makefile moves the lkdtm_rodata_do_nothing() function into .rodata by renaming the file's .text section to .rodata, and consequently also moves the ctor function into .rodata, leading to a boot time crash (splat below) when the ctor is invoked by do_ctors(). Let's prevent this by marking the function as noinstr rather than notrace, and renaming the file's .noinstr.text to .rodata. Marking the function as noinstr will prevent tracing and kprobes, and will inhibit any undesireable compiler instrumentation. The ctor function (if any) will be placed in .text and will work correctly. Example splat before this patch is applied: [ 0.916359] Unable to handle kernel execute from non-executable memory at virtual address ffffa0006b60f5ac [ 0.922088] Mem abort info: [ 0.922828] ESR = 0x8600000e [ 0.923635] EC = 0x21: IABT (current EL), IL = 32 bits [ 0.925036] SET = 0, FnV = 0 [ 0.925838] EA = 0, S1PTW = 0 [ 0.926714] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000427b3000 [ 0.928489] [ffffa0006b60f5ac] pgd=000000023ffff003, p4d=000000023ffff003, pud=000000023fffe003, pmd=0068000042000f01 [ 0.931330] Internal error: Oops: 8600000e [#1] PREEMPT SMP [ 0.932806] Modules linked in: [ 0.933617] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7 #2 [ 0.935620] Hardware name: linux,dummy-virt (DT) [ 0.936924] pstate: 40400005 (nZcv daif +PAN -UAO -TCO BTYPE=--) [ 0.938609] pc : asan.module_ctor+0x0/0x14 [ 0.939759] lr : do_basic_setup+0x4c/0x70 [ 0.940889] sp : ffff27b600177e30 [ 0.941815] x29: ffff27b600177e30 x28: 0000000000000000 [ 0.943306] x27: 0000000000000000 x26: 0000000000000000 [ 0.944803] x25: 0000000000000000 x24: 0000000000000000 [ 0.946289] x23: 0000000000000001 x22: 0000000000000000 [ 0.947777] x21: ffffa0006bf4a890 x20: ffffa0006befb6c0 [ 0.949271] x19: ffffa0006bef9358 x18: 0000000000000068 [ 0.950756] x17: fffffffffffffff8 x16: 0000000000000000 [ 0.952246] x15: 0000000000000000 x14: 0000000000000000 [ 0.953734] x13: 00000000838a16d5 x12: 0000000000000001 [ 0.955223] x11: ffff94000da74041 x10: dfffa00000000000 [ 0.956715] x9 : 0000000000000000 x8 : ffffa0006b60f5ac [ 0.958199] x7 : f9f9f9f9f9f9f9f9 x6 : 000000000000003f [ 0.959683] x5 : 0000000000000040 x4 : 0000000000000000 [ 0.961178] x3 : ffffa0006bdc15a0 x2 : 0000000000000005 [ 0.962662] x1 : 00000000000000f9 x0 : ffffa0006bef9350 [ 0.964155] Call trace: [ 0.964844] asan.module_ctor+0x0/0x14 [ 0.965895] kernel_init_freeable+0x158/0x198 [ 0.967115] kernel_init+0x14/0x19c [ 0.968104] ret_from_fork+0x10/0x30 [ 0.969110] Code: 00000003 00000000 00000000 00000000 (00000000) [ 0.970815] ---[ end trace b5339784e20d015c ]--- Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kees Cook <keescook@chromium.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20201207170533.10738-1-mark.rutland@arm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-07mei: bus: enable pavp device.Tomas Winkler1-0/+4
Enable protected audio video path client on mei client bus. Cc: Sean Z Huang <sean.z.huang@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20201116125612.1660971-2-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-07mei: bus: add vtag supportAlexander Usyskin4-26/+98
Add API to support vtag in communication on mei bus. Add mei_cldev_send_vtag, mei_cldev_recv_vtag and mei_cldev_recv_nonblock_vtag functions to allow sending a message with vtag set and to receive vtag of an incoming message. Cc: Sean Z Huang <sean.z.huang@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20201116125612.1660971-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-07Merge 5.10-rc7 into char-misc-nextGreg Kroah-Hartman4-895/+8
We want the fixes in here, and this resolves a merge issue with drivers/misc/habanalabs/common/memory.c. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-06Revert "mei: virtio: virtualization frontend driver"Michael S. Tsirkin3-887/+0
This reverts commit d162219c655c8cf8003128a13840d6c1e183fb80. The device uses a VIRTIO device ID out of a not-for-production range. Releasing Linux using an ID out of this range will make it conflict with development setups. An official request to reserve an ID for an MEI device is yet to be submitted to the virtio TC, thus there's no chance it will be reserved and fixed in time before the next release. Once requested it usually takes 2-3 weeks to land in the spec, which means the device can be supported with the official ID in the next Linux version if contributors act quickly. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Tomas Winkler <tomas.winkler@intel.com> Cc: Alexander Usyskin <alexander.usyskin@intel.com> Cc: Wang Yu <yu1.wang@intel.com> Cc: Liu Shuo <shuo.a.liu@intel.com> Link: https://lore.kernel.org/r/20201205193625.469773-1-mst@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04misc: eeprom: at24: fix NVMEM name with custom AT24 device nameDiego Santa Cruz1-1/+0
When the "label" property is set on the AT24 EEPROM the NVMEM devid is set to NVMEM_DEVID_NONE, but it is not effective since there is a leftover line setting it back to NVMEM_DEVID_AUTO a few lines after. Fixes: 61f764c307f6 ("eeprom: at24: Support custom device names for AT24 EEPROMs") Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-12-04lkdtm/powerpc: Add SLB multihit testGanesh Goudar4-0/+127
To check machine check handling, add support to inject slb multihit errors. Co-developed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com> Signed-off-by: Mahesh Salgaonkar <mahesh@linux.ibm.com> Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com> [mpe: Use CONFIG_PPC_BOOK3S_64 to fix compile errors reported by lkp@intel.com] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201130083057.135610-1-ganeshgr@linux.ibm.com
2020-12-04ocxl: Add new kernel tracesChristophe Lombard2-0/+68
Add specific kernel traces which provide information on mmu notifier and on pages range. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201125155013.39955-6-clombard@linux.vnet.ibm.com
2020-12-04ocxl: Add mmu notifierChristophe Lombard1-1/+61
Add invalidate_range mmu notifier, when required (ATSD access of MMIO registers is available), to initiate TLB invalidation commands. For the time being, the ATSD0 set of registers is used by default. The pasid and bdf values have to be configured in the Process Element Entry. The PEE must be set up to match the BDF/PASID of the AFU. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201125155013.39955-5-clombard@linux.vnet.ibm.com
2020-12-04ocxl: Update the Process Element EntryChristophe Lombard3-5/+12
To complete the MMIO based mechanism, the fields: PASID, bus, device and function of the Process Element Entry have to be filled. (See OpenCAPI Power Platform Architecture document) Hypervisor Process Element Entry Word 0 1 .... 7 8 ...... 12 13 ..15 16.... 19 20 ........... 31 0 OSL Configuration State (0:31) 1 OSL Configuration State (32:63) 2 PASID | Reserved 3 Bus | Device |Function | Reserved 4 Reserved 5 Reserved 6 .... Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201125155013.39955-4-clombard@linux.vnet.ibm.com
2020-11-30habanalabs: Add CB IOCTL opcode to retrieve CB informationTomer Tayar1-0/+38
Add a new CB IOCTL opcode that enables a user to query about a CB and get its usage count. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: Modify the cs_cnt of a CB to be atomicTomer Tayar5-32/+17
Modify the CS counter of a CB to be atomic, so no locking is required when it is being modified or read. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: Add mask for CS type bits in CS flagsTomer Tayar1-2/+4
hl_cs_sanity_checks() extracts the CS type bits of the CS flags, by masking out the non-type bits. To save the need for updating the function whenever new bits for non-type flags are added, add an explicit mask for the CS type bits. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: change messages to debug levelOded Gabbay2-3/+3
Some messages should be changed to debug mode as we want to keep minimal prints during normal operation of the device. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: free host huge va_range if not usedOfir Bitton1-1/+3
If huge range is not valid, driver uses the host range also for huge page allocations, but driver never frees its allocation. This introduces a memory leak every time a user closes its context. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: handle reset when f/w is in prebootOded Gabbay1-29/+31
Currently, if the f/w is in preboot/u-boot they don't perform the new reset mechanism. Therefore, the driver needs to reset the device. To prevent reset of PCI_IF, the driver needs to first configure the reset units. If the security is enabled, the driver can't configure the reset units. In that situation, don't reset the card. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add missing counter updateOded Gabbay1-0/+1
The global CS drop-on-reset counter wasn't updated together with the context counter. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add ull to PLL masksAlon Mizrahi1-4/+4
These defines are 64-bit defines so they need ull suffix. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add support for cs with timestampOfir Bitton2-12/+36
add support for user to request a timestamp upon cs completion. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: indicate to user that a cs is goneOfir Bitton1-18/+50
We want to indicate to the user that a certain command submission is finished long time ago and it is no longer in database. This means no further information regarding this cs can be obtained. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: print ECC type fieldOded Gabbay1-2/+2
We have the ECC type field from the firmware but the driver didn't print it, so we need to add that field to the ECC print message. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: update firmware filesOded Gabbay3-2/+21
Update various firmware header files with new defines. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: gaudi_ctx_fini() can be statickernel test robot1-1/+1
Make a function in gaudi.c to be static Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: kernel test robot <lkp@intel.com> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: goya_reset_sob_group() can be statickernel test robot1-3/+3
Make some functions static Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: kernel test robot <lkp@intel.com> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fetch pll frequency from firmwareAlon Mizrahi11-295/+189
Once firmware security is enabled, driver must fetch pll frequencies through the firmware message interface instead of reading the registers directly. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: mmu map wrapper for sizes larger than a pageOfir Bitton6-77/+144
We introduce a new wrapper which allows us to mmu map any size to any host va_range available. In addition we remove duplicated code from various places in driver and using this new wrapper instead. This wrapper supports mapping only contiguous physical memory blocks and will be used for mappings that are done to the driver ASID. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: print CS type when it is stuckOded Gabbay1-3/+25
We have several types of command submissions and the user wants to know which type of command submission has not finished in time when that event occurs. This is very helpful for debug. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: align to new FW reset schemeOfir Bitton1-10/+14
As part of the security effort in which FW will be handling sensitive HW registers, hard reset flow will be done by FW and will be triggered by driver. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: firmware returns 64bit argumentAlon Mizrahi8-31/+49
F/W message returns 64bit value but up until now we casted it to a 32bit variable, instead of receiving 64bit in the first place. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fix MMU debugfs operationsMoti Haimovski4-263/+206
After the MMU-code refactoring, the existing MMU debugfs operations are no longer working so we need to fix them. In addition, remove the duplicate code that was in the debugfs code and use the already existing MMU-code. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: share a single ctx-mutex between all MMUsMoti Haimovski2-4/+4
Multiple locks are usually a source of problems, which in the MMU case can be avoided since it is relatively rare that both MMU tables are updated at the same time. Therefore, use a single shared lock instead of two separate ones. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: support reserving aligned va blockOfir Bitton3-5/+10
Add support for reserving va block with alignment different than page size. This is a pre-requisite for allocations needed in future ASICs Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add boot errors printsGuy Nisan1-0/+7
Add log prints for security and eFuse boot error bits Signed-off-by: Guy Nisan <gnisan@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: print message with correct deviceOded Gabbay1-1/+1
During hard-reset, the driver rejects further IOCTL calls and prints an error message. That error message should be printed with the correct device instead of using only the control device. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: fetch HBM ecc info from FWOfir Bitton2-7/+72
Once FW security is enabled there is no access to HBM ecc registers, need to read values from FW using a dedicated interface. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fetch hard reset capability from FWOfir Bitton5-12/+32
Driver must fetch FW hard reset capability during boot time, in order to skip the hard reset flow if necessary. 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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