Re: HEADS UP: graphics driver fixes

[mlh%goathill.org@localhost (MLH)]

>  If DRM/KMS has been flaky for you, please try again in HEAD!

NetBSD 7.99.5 (GENERIC) #0: Sat Feb 28 10:26:18 EST 2015 GENERIC amd64

Radeon HD6450

radeon0 at pci1 dev 0 function 0: vendor 1002 product 6779 (rev. 0x00)
...
drm: initializing kernel modesetting (CAICOS 0x1002:0x6779 0x1682:0x3200).
drm: register mmio base: 0xfbec0000
drm: register mmio size: 131072
drm kern info: ATOM BIOS: C28506
radeon0: info: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used)
radeon0: info: GTT: 1024M 0x0000000080000000 - 0x00000000BFFFFFFF
drm: Detected VRAM RAM=800M, BAR=256M
drm: RAM width 64bits DDR
Zone  kernel: Available graphics memory: 1414194 kiB
drm: radeon: 2048M of VRAM memory ready
drm: radeon: 1024M of GTT memory ready.
drm: Loading CAICOS Microcode
drm: Internal thermal controller without fan control
drm: GART: num cpu pages 262144, num gpu pages 262144
drm: PCIE GART of 1024M enabled (table at 0x0000000000273000).
radeon0: info: WB enabled
radeon0: info: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0x0xffff800049eb8c00
radeon0: info: fence driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr 0x0xffff800049eb8c0c
radeon0: info: fence driver on ring 5 use gpu addr 0x0000000000072118 and cpu addr 0x0xffff800049f82118
drm: Supports vblank timestamp caching Rev 2 (21.10.2013).
drm: Driver supports precise vblank timestamp query.
radeon0: interrupting at ioapic0 pin 16 (radeon)
drm: radeon: irq initialized.
drm: ring test on 0 succeeded in 1 usecs
drm: ring test on 3 succeeded in 1 usecs
drm: ring test on 5 succeeded in 1 usecs
drm: UVD initialized successfully.
drm: ib test on ring 0 succeeded in 0 usecs
drm: ib test on ring 3 succeeded in 0 usecs
drm: ib test on ring 5 succeeded
drm: Radeon Display Connectors
drm: Connector 0:
drm:   HDMI-A-1
drm:   HPD4
drm:   DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c
drm:   Encoders:
drm:     DFP1: INTERNAL_UNIPHY1
drm: Connector 1:
drm:   DVI-I-1
drm:   HPD1
drm:   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c
drm:   Encoders:
drm:     DFP2: INTERNAL_UNIPHY
drm: Connector 2:
drm:   VGA-1
drm:   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
drm:   Encoders:
drm:     CRT1: INTERNAL_KLDSCP_DAC1
radeondrmkmsfb0 at radeon0
radeon0: info: registered panic notifier
radeondrmkmsfb0: framebuffer at 0xffff80004a5a3000, size 1920x1200, depth 32, stride 7680
wsdisplay0 at radeondrmkmsfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0

Seems to be a little more stable than before. Not as much display
trashing so far, but xdm can't load anymore:

xdm.log:
xdm error (pid 2102): Unknown session exit code 2816 from process 2171
Segmentation fault at address 0x7f7feda665aa

Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting

Have to use startx