Age | Commit message (Collapse) | Author |
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first step in merging rs4xx/rs6xx gart setup
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No solid idea about what these 2 bits do, but nv50 can now survive a few
PGRAPH exceptions just as nv40 does :)
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This is possibly temporary. I can trigger an unending IRQ storm on G8x
in some circumstances, and have no idea how to handle that particular PFIFO
exception correctly yet.
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Doesn't fix any issue I've seen, but is a potential issue if a FIFO IRQ
occurs during channel creation/takedown.
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The IRQ handling stuff really is a mess.. On the TODO :)
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I swore I'd actually do this properly and not go the horrible route
we did with nv4x, but I won't get around to it just yet with so many
*actually* interesting things to do first.. One day.
Since someone already added nv86, why not!
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Turns out it's important to save/restore AR14 in particular.
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Make both crtc and the command argument 32 bits to avoid any 32-on-64 compat
issues.
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Enum can be of pretty much any size since C leaves the choice of size up to the implementation. So avoid using it in new interfaces like the vblank pre- & post-modeset ioctl. Thanks to hch for spotting this.
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From Jesse and Zhenyu originally.
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The vblank tasklet update code must build 2D blt commands with the
appropriate tiled flags.
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The batchbuffer submission paths were fixed to use the 965-specific command,
but the vblank tasklet was not. When the older version is sent, the 965 will
lock up.
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dude kernel moduless use kernel errors :)
this fixes an oops on init when this codepath hits.
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- Note that this may not work for all nv86.
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This interface was defined completely wrong, however userspace has only
ever used 4 values from it (0x1, 0x2, 0x3 and 0x6), so fix the interface to do what userspace actually expected but define new defines for new users to use
it properly.
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Previously, the R300_CMD_WAIT command would write the passed directly to the
hardware. However this is incorrect because the R300_WAIT_* values used are
internal interface values that do not map directly to the hardware.
The new function I have added translates the R300_WAIT_* values into appropriate
values for the hardware before writing the register.
Thanks to John Bridgman for pointing this out. :-)
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The wait functions depend on PTIMER, so write the old (incorrect, but working) values for uninitialised hw
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Kernel bug 10289.
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More or less a workaround for issues on some chipsets where a context
switch results in critical data in PRAMIN being overwritten by the GPU.
The correct fix is known, but may take some time before it's a feasible
option.
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Limit frag address to 8 bits
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This needs to be tested thoroughly before pushing to the
kernel.
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This updated microcode is not in use yet.
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This is the correct fix for the RS690 and hopefully the dma coherent work.
For now we limit everybody to a 32-bit DMA mask but it is possible for
RS690 to use a 40-bit DMA mask for the GART table itself,
and the PCIE cards can use 40-bits for the table entries.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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DMA command submission. It's worth remembering that all new bright ideas on how
to make this command reader work properly and according to docs
will probably fail :( Bring in some old code.
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The docs state bits 4-11 represent bits 32-39 of a 40-bit address
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If we ever want to be able to use the 3D engine we have no choice. It
appears that the tiling setup (required for 3D on G8x) is in the page tables.
The immediate benefit of this change however is that it's now not possible
for a client to use the GPU to render over the top of important engine setup
tables, which also live in VRAM.
G8x VRAM size is limited to 512MiB at the moment, as we use a 1-1 mapping
of real vram pages to their offset within the start of a channel's VRAM
DMA object and only populate a single PDE for VRAM use.
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