Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMarcin Kościelnicki <koriakin@0x04.net>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

sil164 and friends are the most common, usually they just need to be
poked once because a fixed configuration is enough for any modes and
clocks, so they worked without this patch if the BIOS had done a good
job on POST. Display couldn't survive a suspend/resume cycle though.
Unfortunately, BIOS scripts are useless here.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This is required should we ever attempt to use an io-mapping where
KM_USER0 is verboten, such as inside an IRQ context.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Fixes suspend+multihead on some boards that also use BIOS scripts for
modesetting.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Locking only makes sense in the VBIOS parsing code as it's executed
before CRTC init.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Init-compute-mem was the last piece missing for nv0x-nv3x card
cold-booting. This implementation is somewhat lacking but it's been
reported to work on most chipsets it was tested in. Let me know if it
breaks suspend to RAM for you.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Tested-by: NPatrice Mandin <patmandin@gmail.com>
Tested-by: NBen Skeggs <bskeggs@redhat.com>
Tested-by: NXavier Chantry <chantry.xavier@gmail.com>
Tested-by: NMarcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Also collect all the PFB registers in a single place and remove some
duplicated definitions.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

It doesn't like variable length arrays.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

A previous commit started additionally using the SOR link when trying to
match the correct output script.  However, we never fill in this field
for LVDS so we can never match a script at all.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Based on a patch from Matthew Garrett.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Acked-by: NMatthew Garrett <mjg@redhat.com>

There's a report of this quirk breaking modesetting on at least one board.
After discussion with Francisco Jerez, we've decided to remove it:

<darktama> it's not worth limiting the quirk to just where we know it can
           work?  i'm happy either way really :)
<curro> hmm, don't think so, most if not all DCB15 cards have just one DAC
<curro> and with that quirk there's no way to tell if the load comes from
        the VGA or DVI port
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Acked-by: NFrancisco Jerez <currojerez@riseup.net>

On nv50 it became impossible to attempt a PCI ROM shadow of the VBIOS,
which will break some setups.

This patch also removes the different ordering of shadow methods for
pre-nv50 chipsets.  The reason for the different ordering was paranoia,
but it should hopefully be OK to try shadowing PRAMIN first.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

On nv50 it became impossible to attempt a PCI ROM shadow of the VBIOS,
which will break some setups.

This patch also removes the different ordering of shadow methods for
pre-nv50 chipsets.  The reason for the different ordering was paranoia,
but it should hopefully be OK to try shadowing PRAMIN first.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

No need to spam the logs when they're found, they're equivalent to
INIT_DONE.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Uncertain if this is a weirdo configuration, or a BIOS bug.  If it's not
a BIOS bug, we still don't know how to make it work anyway so ignore a
"conflicting" DCB entry to prevent a display hang.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

As long as we know the length of the opcode, we're probably better off
trying to parse the remainder of an init table rather than aborting in
the middle of it.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

The nv05 card in the bug report [1] doesn't have usable I2C port
register offsets (they're all filled with zeros). Ignore them and use
the defaults.

[1] http://bugs.launchpad.net/bugs/569505Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We just need to clear the SBA and ENABLE bits to reset the AGP
controller: If the AGP bridge was configured to use "fast writes",
clearing the FW bit would break the subsequent MMIO writes and
eventually end with a lockup.

Note that all the BIOSes I've seen do the same as we did (it works for
them because they don't use MMIO), OTOH the blob leaves FW untouched.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

dcb->i2c[] has DCB_MAX_NUM_I2C_ENTRIES entries.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

It appears version 0x21 'U' and 'd' tables require us to take the SOR link
into account when selecting the appropriate table for a particular output.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Some of the laptops with the switchable graphics, seem to not post the secondary GPU at all, and we can't find a copy of the BIOS anywhere except in the ACPI rom retrieval.

This adds support for ACPI ROM retrieval to nouveau.
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This resulted in accidently switching off the eDP panel on certain laptops
since the default state in the GPIO table was off.

Fixes rh#582621
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We totally fail at detecting un-POSTed chipsets prior to G80.  This commit
changes the pre-G80 POST detection to read the programmed horizontal total
from CRTC 0, and assume the card isn't POSTed if it's 0.

NVIDIA use some other heuristics more similar to what we do on G80, but I
wasted quite a long time trying to figure out the exact specifics of what
they do so we can try this for a bit instead.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Mutliple issues.  INIT_ZM_I2C_BYTE/INIT_I2C_BYTE didn't even try and
use the register value, and all the handlers were using the wrong
slave address.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

It appears to be meant to reference the second "default index".
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We may not have parsed the entry yet if the i2c_index is for an i2c bus
that's not referenced by a DCB encoder.

This could be done oh so much more nicely, except we have to care about
prehistoric DCB tables too, and they make life painful.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Some handlers don't report specific errors, but we still *really* want to
know if we failed to parse a complete init table.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We really want to be able to distinguish between INIT_DONE and an actual
error sometimes.  This commit fixes up several lazy "return 0;" to be
actual error codes, and explicitly reserves "0" as "success, but stop
parsing this table".
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>