CVS commit: src/sys

["matthew green" <mrg%netbsd.org@localhost>]

Module Name:    src
Committed By:   mrg
Date:           Mon Oct 17 03:05:32 UTC 2022

Modified Files:
        src/sys/dev/pci: pcireg.h
        src/sys/external/bsd/drm2/dist/drm/amd/amdgpu: amdgpu_cik.c amdgpu_si.c
        src/sys/external/bsd/drm2/dist/drm/radeon: radeon_cik.c radeon_si.c
        src/sys/external/bsd/drm2/include/linux: pci.h
        src/sys/external/bsd/drm2/linux: linux_pci.c

Log Message:
add pcie capability and read request size linux compat, some pci root support

implement support for:
- pcie_capability_read_dword()
- pcie_capability_read_word()
- pcie_capability_write_dword()
- pcie_capability_write_word()
- pcie_get_readrq()
- pcie_set_readrq()

implement the "struct pci_dev" bus->self member by creating a minimal fake
"struct pci_dev" for the pci bus itself.  this is kind of gross.  it checks
that the current device's parent is a netbsd "pci" device, and that it has
a (grand) parent "ppb" device, and then fills in the fake device based upon
the pci and ppb devices.

add some PCIE_LCSR2_TGT_LSPEED encodings, and map them to linux names.
map several other PCIE_LCSR and PCIE_LCAP names.

uncomment several pcie code segments in radeon and amdgpu.  (not sure that
we can test the amdgpu_si.c change, as we use the radeon version and the
amdgpu version hangs on the one machine i have.)

tested on amdgpu (RX550) and radeon (7750 & 3650).

ok @riastradh


To generate a diff of this commit:
cvs rdiff -u -r1.167 -r1.168 src/sys/dev/pci/pcireg.h
cvs rdiff -u -r1.5 -r1.6 \
    src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cik.c
cvs rdiff -u -r1.3 -r1.4 \
    src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_si.c
cvs rdiff -u -r1.6 -r1.7 \
    src/sys/external/bsd/drm2/dist/drm/radeon/radeon_cik.c
cvs rdiff -u -r1.4 -r1.5 \
    src/sys/external/bsd/drm2/dist/drm/radeon/radeon_si.c
cvs rdiff -u -r1.54 -r1.55 src/sys/external/bsd/drm2/include/linux/pci.h
cvs rdiff -u -r1.24 -r1.25 src/sys/external/bsd/drm2/linux/linux_pci.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.