The SSID=1 is used by the firmware as default value in case SSID mapping is not initialized. This allows detecting use of miss-configured memory contexts. The future FW versions may not allow using SSID=1. Co-developed-by: Andrzej Kacprowski <andrzej.kacprowski@xxxxxxxxxxxxxxx> Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@xxxxxxxxxxxxxxx> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@xxxxxxxxxxxxxxx> --- drivers/accel/ivpu/ivpu_drv.c | 4 ++-- drivers/accel/ivpu/ivpu_drv.h | 5 ++++- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index d9e311b40348..70245cf84593 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -474,8 +474,8 @@ static int ivpu_dev_init(struct ivpu_device *vdev) vdev->hw->ops = &ivpu_hw_mtl_ops; vdev->platform = IVPU_PLATFORM_INVALID; - vdev->context_xa_limit.min = IVPU_GLOBAL_CONTEXT_MMU_SSID + 1; - vdev->context_xa_limit.max = IVPU_CONTEXT_LIMIT; + vdev->context_xa_limit.min = IVPU_USER_CONTEXT_MIN_SSID; + vdev->context_xa_limit.max = IVPU_USER_CONTEXT_MAX_SSID; atomic64_set(&vdev->unique_id_counter, 0); xa_init_flags(&vdev->context_xa, XA_FLAGS_ALLOC); xa_init_flags(&vdev->submitted_jobs_xa, XA_FLAGS_ALLOC1); diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h index 1b2aa05840ad..ef12a38e06e1 100644 --- a/drivers/accel/ivpu/ivpu_drv.h +++ b/drivers/accel/ivpu/ivpu_drv.h @@ -25,7 +25,10 @@ #define PCI_DEVICE_ID_MTL 0x7d1d #define IVPU_GLOBAL_CONTEXT_MMU_SSID 0 -#define IVPU_CONTEXT_LIMIT 64 +/* SSID 1 is used by the VPU to represent invalid context */ +#define IVPU_USER_CONTEXT_MIN_SSID 2 +#define IVPU_USER_CONTEXT_MAX_SSID (IVPU_USER_CONTEXT_MIN_SSID + 63) + #define IVPU_NUM_ENGINES 2 #define IVPU_PLATFORM_SILICON 0 -- 2.25.1
