user/sven/linux.git/drivers/accel, branch v6.6.40

kthread: add kthread_stop_put

2024-06-12T09:12:52Z

[ Upstream commit 6309727ef27162deabd5c095c11af24970fba5a2 ] Add a kthread_stop_put() helper that stops a thread and puts its task struct. Use it to replace the various instances of kthread_stop() followed by put_task_struct(). Remove the kthread_stop_put() macro in usbip that is similar but doesn't return the result of kthread_stop(). [agruenba@redhat.com: fix kerneldoc comment] Link: https://lkml.kernel.org/r/20230911111730.2565537-1-agruenba@redhat.com [akpm@linux-foundation.org: document kthread_stop_put()'s argument] Link: https://lkml.kernel.org/r/20230907234048.2499820-1-agruenba@redhat.com Signed-off-by: Andreas Gruenbacher Signed-off-by: Andrew Morton Stable-dep-of: bb9025f4432f ("dma-mapping: benchmark: fix up kthread-related error handling") Signed-off-by: Sasha Levin

accel/ivpu: Fix deadlock in context_xa

2024-04-17T09:19:34Z

commit fd7726e75968b27fe98534ccbf47ccd6fef686f3 upstream. ivpu_device->context_xa is locked both in kernel thread and IRQ context. It requires XA_FLAGS_LOCK_IRQ flag to be passed during initialization otherwise the lock could be acquired from a thread and interrupted by an IRQ that locks it for the second time causing the deadlock. This deadlock was reported by lockdep and observed in internal tests. Fixes: 35b137630f08 ("accel/ivpu: Introduce a new DRM driver for Intel VPU") Cc: # v6.3+ Signed-off-by: Jacek Lawrynowicz Reviewed-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-9-jacek.lawrynowicz@linux.intel.com Signed-off-by: Greg Kroah-Hartman

accel/habanalabs: increase HL_MAX_STR to 64 bytes to avoid warnings

2024-04-13T11:07:35Z

[ Upstream commit 8c075401f2dbda43600c61f780a165abde77877a ] Fix a warning of a buffer overflow: ‘snprintf’ output between 38 and 47 bytes into a destination of size 32 Signed-off-by: Koby Elbaz Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

accel/ivpu: Don't enable any tiles by default on VPU40xx

2024-03-01T12:35:01Z

commit eb0d253ff9c74dee30aa92fe460b825eb28acd73 upstream. There is no point in requesting 1 tile on VPU40xx as the FW will probably need more tiles to run workloads, so it will have to reconfigure PLL anyway. Don't enable any tiles and allow the FW to perform initial tile configuration. This improves NPU boot stability as the tiles are always enabled only by the FW from the same initial state. Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4") Cc: stable@vger.kernel.org Signed-off-by: Andrzej Kacprowski Signed-off-by: Jacek Lawrynowicz Reviewed-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20240220131624.1447813-1-jacek.lawrynowicz@linux.intel.com Signed-off-by: Greg Kroah-Hartman

accel/ivpu/40xx: Stop passing SKU boot parameters to FW

2024-03-01T12:34:56Z

[ Upstream commit 553099da45397914a995dce6307d6c26523c2567 ] This parameter was never used by the 40xx FW. Signed-off-by: Krystian Pradzynski Signed-off-by: Jacek Lawrynowicz Reviewed-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20240126122804.2169129-7-jacek.lawrynowicz@linux.intel.com Signed-off-by: Sasha Levin

accel/ivpu: Disable d3hot_delay on all NPU generations

2024-03-01T12:34:56Z

[ Upstream commit a7f31091ddf457352e3dd7ac183fdbd26b4dcd04 ] NPU does not require this delay regardless of the generation. All generations are integrated into the SOC. Signed-off-by: Jacek Lawrynowicz Reviewed-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20240126122804.2169129-4-jacek.lawrynowicz@linux.intel.com Signed-off-by: Sasha Levin

accel/ivpu: Force snooping for MMU writes

2024-03-01T12:34:55Z

[ Upstream commit c9da9a1f17bf4fa96b115950fd389c917b583c1c ] Set AW_SNOOP_OVERRIDE bit in VPU_37/40XX_HOST_IF_TCU_PTW_OVERRIDES to force snooping for MMU write accesses (setting event queue events). MMU event queue buffer is the only buffer written by MMU and mapped as write-back which break cache coherency. Force write transactions to be snooped solving the problem. Signed-off-by: Wachowski, Karol Signed-off-by: Jacek Lawrynowicz Reviewed-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20240126122804.2169129-2-jacek.lawrynowicz@linux.intel.com Signed-off-by: Sasha Levin

accel/habanalabs: add support for Gaudi2C device

2024-02-05T20:14:29Z

[ Upstream commit 42422993cf28d456778ee9168d73758ec037cd51 ] Gaudi2 with PCI revision ID with the value of '3' represents Gaudi2C device and should be detected and initialized as Gaudi2. Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

accel/habanalabs: fix information leak in sec_attest_info()

2024-01-25T23:35:38Z

[ Upstream commit a9f07790a4b2250f0140e9a61c7f842fd9b618c7 ] This function may copy the pad0 field of struct hl_info_sec_attest to user mode which has not been initialized, resulting in leakage of kernel heap data to user mode. To prevent this, use kzalloc() to allocate and zero out the buffer, which can also eliminate other uninitialized holes, if any. Fixes: 0c88760f8f5e ("habanalabs/gaudi2: add secured attestation info uapi") Signed-off-by: Xingyuan Mo Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

accel/qaic: Implement quirk for SOC_HW_VERSION

2024-01-10T16:16:47Z

[ Upstream commit 4c8874c2a6512b9fe7285cab1a6910d9211a6cfb ] The SOC_HW_VERSION register in the BHI space is not correctly initialized by the device and in many cases contains uninitialized data. The register could contain 0xFFFFFFFF which is a special value to indicate a link error in PCIe, therefore if observed, we could incorrectly think the device is down. Intercept reads for this register, and provide the correct value - every production instance would read 0x60110200 if the device was operating as intended. Fixes: a36bf7af868b ("accel/qaic: Add MHI controller") Signed-off-by: Jeffrey Hugo Reviewed-by: Pranjal Ramajor Asha Kanojiya Reviewed-by: Jacek Lawrynowicz Link: https://patchwork.freedesktop.org/patch/msgid/20231208163101.1295769-3-quic_jhugo@quicinc.com Signed-off-by: Sasha Levin