From: Yuquan Wang
This creates a specific CXL host bridge (0001:00) with two cxl
root ports on sbsa-ref. And the memory layout provides separate
space windows for the cxl host bridge in the sbsa-ref memmap:
- 64K CXL Host Bridge Component Registers (CHBCR)
- 64K CXL_PIO
- 128M CXL_MMIO
- 256M
From: Yuquan Wang
Define a new CXL host bridge type (TYPE_CXL_HOST). This is an
independent CXL host bridge which combined GPEX features (ECAM, MMIO
windows and irq) and CXL Host Bridge Component Registers (CHBCR).
The root bus path of CXL_HOST is "0001:00", that would not affect the
original PC
v2 -> v3:
- Update the commit message
- Fix some alignment and space problems
- Add a SPDX header for the new file
- Remove unnecessary comments
- Add CXL_HOST_BRIDGE config
v1 -> v2:
- Move the code of new bridge to hw/pci-host/cxl.c
- Fix and simplify some logic on handling the different bridge t
This renames some descriptions and definitions of pxb cxl host
bridge, since the original names can be confusing.
Signed-off-by: Yuquan Wang
---
hw/pci-bridge/pci_expander_bridge.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/hw/pci-bridge/pci_expander_bridge.c
b/
From: Yuquan Wang
This creates a specific cxl host bridge (0001:00) with two cxl
root ports on sbsa-ref. And the memory layout provides separate
space windows for the cxl host bridge in the sbsa-ref memmap:
- 64K CXL Host Bridge Component Registers (CHBCR)
- 64K CXL_PIO
- 128M CXL_MMIO
- 256M
v1 -> v2:
- Move the code of new bridge to hw/pci-host/cxl.c
- Fix and simplify some logic on handling the different bridge types
Background
==
Currently the base CXL support for arm platforms is only on Jonathan's
patches[1]. Some platform like SBSA-REF can be more like a real machine,
th
From: Yuquan Wang
This work defines a new cxl host bridge type (TYPE_CXL_HOST). This
could be considered as a prototype of an independent cxl host bridge
which combines gpex features (ecam, mmio windows & irq) and CHBCR
at meanwhile.
The root bus path of CXL_HOST is "0001:00", that would not aff
This renames some descriptions and definitions of pxb cxl host
bridge, since the original names can be confusing.
Signed-off-by: Yuquan Wang
---
hw/pci-bridge/pci_expander_bridge.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/hw/pci-bridge/pci_expander_bridge.c
b/
