Idea from Martin Peres, different implementation by me.

v2: Martin Peres:
- fix mast calculation
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

This will probably result in more lines of code, however, we're going to
have at least 3 slightly different implementations of this very soon and
I'd rather keep the ram reclocking logic separate from the hw specifics.

DDR2/DDR3/GDDR3 implemented thus far, others will be added as necessary.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Statically generating the PFB register and MR values for each timing set
turns out to be insufficient.  There's at least one (so far) known piece
of information which effects MR values which is stored in the perflvl
entry on some chipsets (and in another table on later ones), which is
disconnected from the timing table entries.

After this change we will generate a timing set based on an input clock
frequency instead, and have this data stored in the performance level
data.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

We might want/need the boot data to generate the other perflevels.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Roy Spliet:
- Implement according to specs
- Simplify
- Make array for mc latency registers

Martin Peres:
- squash and split all the commits from Roy
- rework following Ben Skeggs comments
- add a form of timings validation
- store the initial timings for later use

Ben Skeggs
- merge slightly modified tidy-up patch with this one
- remove perflvl-dropping logic for the moment
Signed-off-by: NRoy Spliet <r.spliet@student.tudelft.nl>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

It turns out we need access to some additional information in various VBIOS
tables to handle PFB memory timings correctly.

Rather than hack in parsing of the new stuff in some kludgy way, I've
restructured the VBIOS parsing to be more primitive, so we can use them in
more flexible ways in the future.

The perflvl->timing association code is disabled for the moment until it can
be reworked.  We don't use this stuff yet anyway, so no harm done.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>

Module parameter descriptions don't take a trailing \n, otherwise it
breaks formatting of modinfo's output. Also remove trailing space.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

- Rename several VBIOS entries to closer match the real world
- Add the missing 0x100238 and 0x100240 register values
- Parse bit 14 of the VBIOS timing table
- "Magic value" -> tCWL, fixing some minor bugs in the process
- Also name a few more by their name rather than their number.
- Some values seem to be dependent on the memory type. Fix

Edits by Martin Peres <martin.peres@labri.fr>:
- this is a squash commit
- reworked for fixing some style issues
Signed-off-by: NRoy Spliet <r.spliet@student.tudelft.nl>
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

Uses only the VBIOS tables, from what I can tell this is what NVIDIA do
too, I was able to change the detected memory type by modifying this table
on a NVC1 chipset.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

M version 2 appears to have a table with some form of memory type info
available.

NVIDIA appear to ignore the table information except for this DDR2/DDR3
case (which has the same value in 0x100714).  My guess is this is due to
some of the supported memory types not being represented in the table.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

DDR1/DDR[23] confirmed on NVA8 (see note about DDR3 in source) by changing
the value and watching the binary driver's behaviour.

GDDR3/4 values confirmed on a NV96 via the same method above.  That GDDR4
is present is interesting, as far as I can see no boards using it were ever
released.

GDDR5 value is based on VBIOS images of known GDDR5 boards.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

NV20/NV30 is partially educated guesswork at this point, based on any
information around about available memory types and a horribly unspeakable
amount of vbios image scouring.  I'm not entirely certain the GDDR3 define
is correct, I have not spotted a single vbios with that value yet (though
it is mentioned in some 1218-using nv4x vbios), but there are reports that
some nv3x did use it..

NV40(100914) confirmed by switching an NV49 to DDR1/DDR2 values and making
sure that the binary driver behaviour showed it had detected DDR1/DDR2
instead of GDDR3 before dying horribly.

NV40(100474) confirmed by doing much the same task as above on an NV44,
except this was *much* easier as changing the values didn't seem to have
any noticable effect on the memory controller aside from changing the
binary driver's behaviour.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Most functions were quite different between NV10/NV20 already, and they're
about to get even more so.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

Also, display detected memory type in logs - though, we don't even try to
detect this yet.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

* drm-gma500-alanc: (47 commits)
  gma500: psb_irq: mark mid_{enable, disable}_pipe_event() as static
  gma500: mark psb_intel_sdvo_hdmi_sink_detect() as static
  gma500: psb_intel_display: drop unused variables
  gma500: mark psb_intel_pipe_set_base() as static
  gma500: drop unused psb_intel_modeset_cleanup()
  gma500: oaktrail_lvds_init() drop unused variable
  gma500: oaktrail_hdmi_i2c_access() drop unused variable
  gma500: mark oaktrail_backlight_init() as static
  gma500: oaktrail_hdmi: fix -Wmissing-field-initializers warning
  gma500: oaktrail_hdmi: drop dead code
  gma500: oaktrail_crtc: drop unused variables
  gma500: oaktrail_crtc: mark few functions as static
  gma500: mdfld_intel_display: drop unused variables
  gma500: mdfld_dsi_pkg_sender: fix -Wtype-limits warning
  gma500: mdfld_dsi_dpi: drop unused variables
  gma500: mdfld_device: mark few functions as static
  gma500: cdv_intel_lvds: #if 0 currently unused functions
  gma500: cdv_intel_lvds: mark few functions as static
  gma500: cdv_intel_hdmi: add missing include
  gma500: cdv_intel_crt: mark few functions as static
  ...

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>