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| author | Karol Wachowski <karol.wachowski@linux.intel.com> | 2023-09-01 12:49:52 +0300 |
|---|---|---|
| committer | Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> | 2023-09-04 12:01:26 +0300 |
| commit | 34d03f2a174dce5ad7c2c1149127abddb75ac713 (patch) | |
| tree | 2b763187245363d5f921e7c0719be2e63571883a /drivers/accel/ivpu/ivpu_mmu_context.c | |
| parent | edee62c0852aa7e107b9e9e7f1b3669a8d293ca2 (diff) | |
| download | linux-34d03f2a174dce5ad7c2c1149127abddb75ac713.tar.xz | |
accel/ivpu: Initialize context with SSID = 1
Context with SSID = 1 is reserved and accesses on that context happen
only when context is uninitialized on the VPU side. Such access triggers
MMU fault (0xa) "Invalid CD Fetch", which doesn't contain any useful
information besides context ID.
This commit will change that state, now (0x10) "Translation fault" will
be triggered and accessed address will shown in the log.
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901094957.168898-7-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel/ivpu/ivpu_mmu_context.c')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_mmu_context.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_mmu_context.c b/drivers/accel/ivpu/ivpu_mmu_context.c index 5b48983c7cf8..0c8c65351919 100644 --- a/drivers/accel/ivpu/ivpu_mmu_context.c +++ b/drivers/accel/ivpu/ivpu_mmu_context.c @@ -469,6 +469,16 @@ void ivpu_mmu_global_context_fini(struct ivpu_device *vdev) return ivpu_mmu_context_fini(vdev, &vdev->gctx); } +int ivpu_mmu_reserved_context_init(struct ivpu_device *vdev) +{ + return ivpu_mmu_user_context_init(vdev, &vdev->rctx, IVPU_RESERVED_CONTEXT_MMU_SSID); +} + +void ivpu_mmu_reserved_context_fini(struct ivpu_device *vdev) +{ + return ivpu_mmu_user_context_fini(vdev, &vdev->rctx); +} + void ivpu_mmu_user_context_mark_invalid(struct ivpu_device *vdev, u32 ssid) { struct ivpu_file_priv *file_priv; |