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24c3caff99
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Nicholas Piggin 24c3caff99 ppc/pnv: Implement POWER9 LPC PSI serirq outputs and auto-clear function 
The POWER8 LPC ISA device irqs all get combined and reported to the line
connected the PSI LPCHC irq. POWER9 changed this so only internal LPC
host controller irqs use that line, and the device irqs get routed to
4 new lines connected to PSI SERIRQ0-3.

POWER9 also introduced a new feature that automatically clears the irq
status in the LPC host controller when EOI'ed, so software does not have
to.

The powernv OPAL (skiboot) firmware managed to work because the LPCHC
irq handler scanned all LPC irqs and handled those including clearing
status even on POWER9 systems. So LPC irqs worked despite OPAL thinking
it was running in POWER9 mode. After this change, UART interrupts show
up on serirq1 which is where OPAL routes them to:

 cat /proc/interrupts
 ...
 20:          0  XIVE-IRQ 1048563 Level     opal-psi#0:lpchc
 ...
 25:         34  XIVE-IRQ 1048568 Level     opal-psi#0:lpc_serirq_mux1

Whereas they previously turn up on lpchc.

Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:21:06 +10:00
..
9pfs hw/xen: Make XenDevOps structures const 2024-06-04 11:53:43 +02:00
acpi hw/acpi: Update CPUs AML with cpu-(ctrl)dev change 2024-07-22 20:15:41 -04:00
adc aspeed/adc: Add AST2700 support 2024-07-21 07:46:38 +02:00
alpha alpha: switch boards to "default y" 2024-05-03 15:47:47 +02:00
arm virtio,pci,pc: features,fixes 2024-07-24 09:32:04 +10:00
audio virtio-snd: check for invalid param shift operands 2024-07-21 14:43:02 -04:00
avr avr: switch boards to "default y" 2024-05-03 15:47:47 +02:00
block vhost,vhost-user: Add VIRTIO_F_IN_ORDER to vhost feature bits 2024-07-21 14:45:56 -04:00
char util/fifo8: Rename fifo8_pop_buf() -> fifo8_pop_bufptr() 2024-07-23 22:34:54 +02:00
core virtio,pci,pc: features,fixes 2024-07-24 09:32:04 +10:00
cpu hw: Add a Kconfig switch for the TYPE_CPU_CLUSTER device 2024-04-25 12:48:12 +02:00
cris cris: switch boards to "default y" 2024-05-03 15:47:47 +02:00
cxl Misc HW patch queue 2024-07-24 15:39:43 +10:00
display virtio-gpu-gl: declare dependency on ui-opengl 2024-07-22 12:47:28 +04:00
dma hw/dma: Add a trace log for a description loading failure 2024-06-18 14:52:00 +02:00
fsi hw/fsi: Aspeed APB2OPB & On-chip peripheral bus 2024-02-01 08:33:18 +01:00
gpio hw/gpio/aspeed: Add reg_table_count to AspeedGPIOClass 2024-07-02 07:52:43 +02:00
hppa hw/hppa/machine: Replace g_memdup() by g_memdup2() 2024-05-08 19:42:45 +02:00
hyperv kvm: move target-dependent interrupt routing out of kvm-all.c 2024-05-03 15:47:48 +02:00
i2c hw/i2c/mpc_i2c: Fix mmio region size 2024-07-23 20:30:36 +02:00
i386 Misc HW patch queue 2024-07-24 15:39:43 +10:00
ide hw/ide/macio: switch from using qemu_allocate_irq() to qdev input GPIOs 2024-07-02 06:58:48 +02:00
input hw: arm: Remove use of tabs in some source files 2024-05-28 14:20:48 +01:00
intc hw/intc/loongson_ipi: Declare QOM types using DEFINE_TYPES() macro 2024-07-23 20:30:36 +02:00
ipack hw/ipack: Constify VMState 2023-12-29 11:17:30 +11:00
ipmi hw/ipmi: Constify VMState 2023-12-29 11:17:30 +11:00
isa hw/isa/vt82c686: Turn "intr" irq into a named gpio 2024-07-16 20:04:08 +02:00
loongarch hw/loongarch/virt: Remove unused assignment 2024-07-12 09:41:18 +08:00
m68k hw: skip registration of outdated versioned machine types 2024-07-02 06:58:37 +02:00
mem hw/cxl/cxl-mailbox-utils: Add device DDR5 ECS control feature 2024-07-21 14:42:04 -04:00
microblaze microblaze: switch boards to "default y" 2024-05-03 15:47:47 +02:00
mips hw/mips/loongson3_virt: remove useless type cast 2024-07-23 20:30:36 +02:00
misc hw/misc: In STM32L4x5 EXTI, handle direct interrupts 2024-07-11 11:41:34 +01:00
net Misc HW patch queue 2024-07-24 15:39:43 +10:00
nubus hw/nubus/virtio-mmio: Fix missing ERRP_GUARD() in realize handler 2024-07-23 22:34:09 +02:00
nvme virtio,pci,pc: features,fixes 2024-07-24 09:32:04 +10:00
nvram hw/nvram: Add BCM2835 OTP device 2024-07-01 12:48:55 +01:00
openrisc kconfig: express dependency of individual boards on libfdt 2024-05-10 15:45:15 +02:00
pci pcie_sriov: Allow user to create SR-IOV device 2024-07-22 20:15:41 -04:00
pci-bridge Misc HW patch queue 2024-04-25 09:43:29 -07:00
pci-host acpi/gpex: Create PCI link devices outside PCI root bridge 2024-07-22 20:15:42 -04:00
pcmcia hw/pcmcia/pxa2xx: Inline pxa2xx_pcmcia_init() 2023-10-27 12:48:57 +01:00
ppc ppc/pnv: Implement POWER9 LPC PSI serirq outputs and auto-clear function 2024-07-26 09:21:06 +10:00
remote hw/remote/vfio-user: Fix config space access byte order 2024-05-08 19:43:15 +02:00
riscv hw/riscv/virt-acpi-build.c: Update the HID of RISC-V UART 2024-07-22 20:15:42 -04:00
rtc docs: Correct Loongarch -> LoongArch 2024-07-23 20:30:36 +02:00
rx kconfig: express dependency of individual boards on libfdt 2024-05-10 15:45:15 +02:00
s390x virtio: features,fixes 2024-07-03 20:54:17 -07:00
scsi Misc HW patch queue 2024-07-24 15:39:43 +10:00
sd hw/sd/sdcard: Support boot area in emmc image 2024-07-16 20:30:15 +02:00
sensor hw, target: Add ResetType argument to hold and exit phase methods 2024-04-25 10:21:06 +01:00
sh4 hw/sh4: Remove newline character in trace events 2024-06-10 13:05:27 -04:00
smbios smbios: make memory device size configurable per Machine 2024-07-22 20:15:41 -04:00
sparc sparc: switch boards to "default y" 2024-05-03 15:47:48 +02:00
sparc64 qemu-sparc queue 2024-05-06 10:19:56 -07:00
ssi aspeed/smc: Fix possible integer overflow 2024-07-21 07:46:38 +02:00
timer hpet: avoid timer storms on periodic timers 2024-07-22 19:19:44 +02:00
tpm hw/tpm: Remove HOST_PAGE_ALIGN from tpm_ppi_init 2024-02-29 11:35:36 -10:00
tricore tricore: switch boards to "default y" 2024-05-03 15:47:48 +02:00
ufs hw/ufs: Fix mcq register range check logic 2024-07-14 17:11:21 +09:00
usb hw/usb/u2f-passthru: Get rid of qemu_open_old() 2024-07-17 14:04:15 +03:00
vfio vfio queue: 2024-07-24 12:58:46 +10:00
virtio virtio-iommu: Add trace point on virtio_iommu_detach_endpoint_from_domain 2024-07-22 20:15:42 -04:00
watchdog aspeed/wdt: Add AST2700 support 2024-06-16 21:08:54 +02:00
xen xen: mapcache: Fix unmapping of first entries in buckets 2024-07-12 00:17:36 +02:00
xenpv hw/xen: Register framebuffer backend via xen_backend_init() 2024-06-04 11:53:43 +02:00
xtensa hw/xtensa: require libfdt 2024-05-10 15:45:15 +02:00
Kconfig hw: Fix problem with the A*MPCORE switches in the Kconfig files 2024-04-25 12:48:12 +02:00
meson.build hw/rdma: Remove deprecated pvrdma device and rdmacm-mux helper 2024-04-24 16:03:38 +02:00