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accel/ivpu: Print CMDQ errors after consumer timeout

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Add checking of error reason bits in IVPU_MMU_CMDQ_CONS
register when waiting for consumer timeout occurred.

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/20231028155936.1183342-6-stanislaw.gruszka@linux.intel.com
This commit is contained in:
Karol Wachowski 2023-10-28 17:59:33 +02:00 committed by Stanislaw Gruszka
parent ba6b035daa
commit e013aa9ab0
1 changed files with 31 additions and 3 deletions
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34
drivers/accel/ivpu/ivpu_mmu.c
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@ -230,7 +230,12 @@
(REG_FLD(IVPU_MMU_REG_GERROR, MSI_PRIQ_ABT)) | \
(REG_FLD(IVPU_MMU_REG_GERROR, MSI_ABT)))
static char *ivpu_mmu_event_to_str(u32 cmd)
#define IVPU_MMU_CERROR_NONE 0x0
#define IVPU_MMU_CERROR_ILL 0x1
#define IVPU_MMU_CERROR_ABT 0x2
#define IVPU_MMU_CERROR_ATC_INV_SYNC 0x3
static const char *ivpu_mmu_event_to_str(u32 cmd)
{
switch (cmd) {
case IVPU_MMU_EVT_F_UUT:
@ -276,6 +281,22 @@ static char *ivpu_mmu_event_to_str(u32 cmd)
}
}
static const char *ivpu_mmu_cmdq_err_to_str(u32 err)
{
switch (err) {
case IVPU_MMU_CERROR_NONE:
return "No CMDQ Error";
case IVPU_MMU_CERROR_ILL:
return "Illegal command";
case IVPU_MMU_CERROR_ABT:
return "External abort on CMDQ read";
case IVPU_MMU_CERROR_ATC_INV_SYNC:
return "Sync failed to complete ATS invalidation";
default:
return "Unknown CMDQ Error";
}
}
static void ivpu_mmu_config_check(struct ivpu_device *vdev)
{
u32 val_ref;
@ -492,8 +513,15 @@ static int ivpu_mmu_cmdq_sync(struct ivpu_device *vdev)
REGV_WR32(IVPU_MMU_REG_CMDQ_PROD, q->prod);
ret = ivpu_mmu_cmdq_wait_for_cons(vdev);
if (ret)
ivpu_err(vdev, "Timed out waiting for consumer: %d\n", ret);
if (ret) {
u32 err;
val = REGV_RD32(IVPU_MMU_REG_CMDQ_CONS);
err = REG_GET_FLD(IVPU_MMU_REG_CMDQ_CONS, ERR, val);
ivpu_err(vdev, "Timed out waiting for MMU consumer: %d, error: %s\n", ret,
ivpu_mmu_cmdq_err_to_str(err));
}
return ret;
}