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3 commits

Author SHA1 Message Date
Ben Skeggs
917b24a3c7 drm/nouveau/bar: switch to instanced constructor 
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
 2021-02-11 11:49:52 +10:00
Thierry Reding
b568db62c5 drm/nouveau/bar/gm20b: Avoid BAR1 teardown during init 
Writing the 0x1704 (BUS_BAR1_BLOCK) register causes the GPU to probe the
memory region at the programmed address. The result is an address decode
error in the external memory controller because address 0, which is what
is written to the register, is not designated as accessible to devices.

Avoid triggering DMA from the GPU by removing teardown of the BAR1.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
 2019-09-17 14:50:16 +10:00
Ben Skeggs
70433b904a drm/nouveau/bar/gm107-: wait for instance block binding to complete 
Discovered by accident while working to use BAR2 access to instmem objects
on more paths.

We've apparently been relying on luck up until now!

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
 2017-11-02 13:32:18 +10:00