[PATCH 00/10] pnv/phb4: Update PHB4 to the latest spec PH5

From: Saif Abrar <saif.abrar@linux.vnet.ibm.com>
To: qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Cc: clg@kaod.org, npiggin@gmail.com, fbarrat@linux.ibm.com,
	mst@redhat.com, marcel.apfelbaum@gmail.com, cohuck@redhat.com,
	pbonzini@redhat.com, thuth@redhat.com, lvivier@redhat.com,
	saif.abrar@linux.vnet.ibm.com
Subject: [PATCH 00/10] pnv/phb4: Update PHB4 to the latest spec PH5
Date: Thu, 21 Mar 2024 05:04:12 -0500	[thread overview]
Message-ID: <20240321100422.5347-1-saif.abrar@linux.vnet.ibm.com> (raw)

Hello,

This series updates the existing PHB4 model to the latest spec:
"Power Systems Host Bridge 5 (PHB5) Functional Specification Version 0.5_00".

Updates include the following:
- implemented sticky reset logic
- implemented read-only, write-only, W1C and WxC logic
- return all 1's on read to unimplemented registers
- update PCIE registers for link status, speed and width
- implement IODA PCT debug table without any functionality
- set write-mask bits for PCIE Link-Control-2 register that is read/written by PHB4
- update LSI Source-ID register based on small/big PHB number of interrupts

Also, a new testbench for PHB4 model is added that does XSCOM read/writes
to various registers of interest and verifies the values.

Regards.

Saif Abrar (10):
  qtest/phb4: Add testbench for PHB4
  pnv/phb4: Add reset logic to PHB4
  pnv/phb4: Implement sticky reset logic in PHB4
  pnv/phb4: Implement read-only and write-only bits of registers
  pnv/phb4: Implement write-clear and return 1's on unimplemented reg read
  pnv/phb4: Set link-active status in HPSTAT and LMR registers
  pnv/phb4: Set link speed and width in the DLP training control register
  pnv/phb4: Implement IODA PCT table
  hw/pci: Set write-mask bits for PCIE Link-Control-2 register
  pnv/phb4: Mask off LSI Source-ID based on number of interrupts

 hw/pci-host/pnv_phb4.c                    | 601 ++++++++++++++++++++--
 hw/pci/pcie.c                             |   6 +
 include/hw/pci-host/pnv_phb4.h            |   9 +
 include/hw/pci-host/pnv_phb4_regs.h       |  66 ++-
 include/standard-headers/linux/pci_regs.h |   3 +
 tests/qtest/meson.build                   |   1 +
 tests/qtest/pnv-phb4-test.c               | 177 +++++++
 7 files changed, 805 insertions(+), 58 deletions(-)
 create mode 100644 tests/qtest/pnv-phb4-test.c

-- 
2.39.3