user/sven/linux.git/drivers/accel, branch v6.6.48

accel/habanalabs: fix debugfs files permissions

2024-08-29T15:33:35Z

[ Upstream commit 0b105a2a7225f2736bd07aca0538cd67f09bfa20 ] debugfs files are created with permissions that don't align with the access requirements. Signed-off-by: Avri Kehat Reviewed-by: Oded Gabbay Reviewed-by: Carl Vanderlip Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

accel/habanalabs: fix bug in timestamp interrupt handling

2024-08-29T15:33:27Z

[ Upstream commit 0165994c215f321e2d055368f89b424756e340eb ] There is a potential race between user thread seeking to re-use a timestamp record with new interrupt id, while this record is still in the middle of interrupt handling and it is about to be freed. Imagine the driver set the record in_use to 0 and only then fill the free_node information. This might lead to unpleasant scenario where the new registration thread detects the record as free to use, and change the cq buff address. That will cause the free_node to get the wrong buffer address to put refcount to. Signed-off-by: farah kassabri Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

accel/habanalabs: export dma-buf only if size/offset multiples of PAGE_SIZE

2024-08-29T15:33:27Z

[ Upstream commit 0b75cb5b240fddf181c284d415ee77ef61b418d6 ] It is currently allowed for a user to export dma-buf with size and offset that are not multiples of PAGE_SIZE. The exported memory is mapped for the importer device, and there it will be rounded to PAGE_SIZE, leading to actually exporting more than the user intended to. To make the user be aware of it, accept only size and offset which are multiple of PAGE_SIZE. Signed-off-by: Tomer Tayar Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

accel/habanalabs/gaudi2: unsecure tpc count registers

2024-08-29T15:33:27Z

[ Upstream commit 1e3a78270b4ec1c8c177eb310c08128d52137a69 ] As TPC kernels now must use those registers we unsecure them. Signed-off-by: Ofir Bitton Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

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