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Update README#45
sgaud-quic wants to merge 4 commits into
qcom-6.18.yfrom
sgaud-quic-patch-26

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@sgaud-quic sgaud-quic commented Mar 19, 2026

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Test Commit
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Signed-off-by: Salendarsingh Gaud <sgaud@qti.qualcomm.com>
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Update README
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sgaud-quic commented Mar 23, 2026

Test Case qcs615 qcs615_prop qcs8300 qcs8300_prop qcs9100 qcs9100_prop rb1 rb3gen2 rb3gen2_prop rb8 rb8_prop
adsp_remoteproc ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
AudioRecord ✅ Pass ❌ Fail ✅ Pass ❌ Fail ✅ Pass ❌ Fail ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
BT_ON_OFF ⚠️ Skip ⚠️ Skip ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ⚠️ Skip
cdsp_remoteproc ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ⚠️ Skip ✅ Pass ✅ Pass ✅ Pass ✅ Pass
CPUFreq_Validation ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
DSP_AudioPD ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
fastrpc_test ❌ Fail ❌ Fail ✅ Pass ✅ Pass ✅ Pass ✅ Pass ❌ Fail ✅ Pass ❌ Fail ✅ Pass ✅ Pass
hotplug ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
Interrupts ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
irq ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
OpenCV ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
WiFi_Firmware_Driver ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
WiFi_OnOff ⚠️ Skip ⚠️ Skip ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ⚠️ Skip

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sgaud-quic commented Mar 27, 2026

6.18.18 3/27

Test Matrix

Test Case qcs615 qcs615_prop qcs8300 qcs8300_prop rb3gen2 rb3gen2_prop rb8 rb8_prop
adsp_remoteproc ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
AudioRecord ✅ Pass ❌ Fail ✅ Pass ❌ Fail ✅ Pass ✅ Pass ✅ Pass ✅ Pass
BT_ON_OFF ⚠️ Skip ⚠️ Skip ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
cdsp_remoteproc ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
CPUFreq_Validation ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
DSP_AudioPD ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
Ethernet ⚠️ Skip ⚠️ Skip ✅ Pass ✅ Pass ⚠️ Skip ⚠️ Skip ⚠️ Skip ✅ Pass
fastrpc_test ❌ Fail ❌ Fail ✅ Pass ✅ Pass ✅ Pass ❌ Fail ✅ Pass ✅ Pass
hotplug ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
Interrupts ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
irq ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
OpenCV ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
WiFi_Firmware_Driver ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass
WiFi_OnOff ⚠️ Skip ⚠️ Skip ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass ✅ Pass

sgaud-quic pushed a commit that referenced this pull request Apr 22, 2026
@ij-intel @gregkh
serial: 8250_dw: Rework IIR_NO_INT handling to stop interrupt storm
5dfd8c7 
commit 73a4ed8 upstream.

INTC10EE UART can end up into an interrupt storm where it reports
IIR_NO_INT (0x1). If the storm happens during active UART operation, it
is promptly stopped by IIR value change due to Rx or Tx events.
However, when there is no activity, either due to idle serial line or
due to specific circumstances such as during shutdown that writes
IER=0, there is nothing to stop the storm.

During shutdown the storm is particularly problematic because
serial8250_do_shutdown() calls synchronize_irq() that will hang in
waiting for the storm to finish which never happens.

This problem can also result in triggering a warning:

  irq 45: nobody cared (try booting with the "irqpoll" option)
  [...snip...]
  handlers:
    serial8250_interrupt
  Disabling IRQ #45

Normal means to reset interrupt status by reading LSR, MSR, USR, or RX
register do not result in the UART deasserting the IRQ.

Add a quirk to INTC10EE UARTs to enable Tx interrupts if UART's Tx is
currently empty and inactive. Rework IIR_NO_INT to keep track of the
number of consecutive IIR_NO_INT, and on fourth one perform the quirk.
Enabling Tx interrupts should change IIR value from IIR_NO_INT to
IIR_THRI which has been observed to stop the storm.

Fixes: e92fad0 ("serial: 8250_dw: Add ACPI ID for Granite Rapids-D UART")
Cc: stable <stable@kernel.org>
Reported-by: Bandal, Shankar <shankar.bandal@intel.com>
Tested-by: Bandal, Shankar <shankar.bandal@intel.com>
Tested-by: Murthy, Shanth <shanth.murthy@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://patch.msgid.link/20260203171049.4353-6-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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