Fixes

drivers/gpu/drm/ttm/ttm_page_alloc.c: In function 'ttm_page_alloc_debugfs':
drivers/gpu/drm/ttm/ttm_page_alloc.c:829: error: implicit declaration of
function 'seq_printf'
Signed-off-by: NMatt Turner <mattst88@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Sysfs interface allows user to configure pool allocator functionality and
change limits for the size of pool.
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Using single call to set multiple pages to wc reduces number of expensive cache
flushes.
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Setting single memory pages at a time to wc takes a lot time in cache flush. To
reduce number of cache flush set_pages_array_wc and set_memory_array_wc can be
used to set multiple pages to WC with single cache flush.

This improves allocation performance for wc cached pages in drm/ttm.

CC: Suresh Siddha <suresh.b.siddha@intel.com>
CC: Venkatesh Pallipadi <venkatesh.pallipadi@gmail.com>
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

ttm_page_pool file is hooked ttm_page_alloc_debugfs for pool
allocator state.
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

ttm_page_pool file is hooked ttm_page_alloc_debugfs for pool
allocator state.
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

ttm_page_alloc_debugfs can be registered to output the state
of pools.

Debugfs file will output number of pages freed from the pool,
number of pages in pool now and the lowes number of pages in
pool since previous shrink.
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

On AGP system we might allocate/free routinely uncached or wc memory,
changing page from cached (wb) to uc or wc is very expensive and involves
a lot of flushing. To improve performance this allocator use a pool
of uc,wc pages.

Pools are protected with spinlocks to allow multiple threads to allocate pages
simultanously. Expensive operations are done outside of spinlock to maximize
concurrency.

Pools are linked lists of pages that were recently freed. mm shrink callback
allows kernel to claim back pages when they are required for something else.

Fixes:
* set_pages_array_wb handles highmem pages so we don't have to remove them
  from pool.
* Add count parameter to ttm_put_pages to avoid looping in free code.
* Change looping from _safe to normal in pool fill error path.
* Initialize sum variable and make the loop prettier in get_num_unused_pages.

* Moved pages_freed reseting inside the loop in ttm_page_pool_free.
* Add warning comment about spinlock context in ttm_page_pool_free.

Based on Jerome Glisse's and Dave Airlie's pool allocator.
Signed-off-by: NJerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Reviewed-by: NJerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

The GPIO_I2C_INFO table does not always have
ATOM_MAX_SUPPORTED_DEVICE entries. Limit
the number of indices to the size of the
table.

Should fix Novell bug 589022.

v2: fix typo
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: Stable <stable@kernel.org>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Gleaned from the Mesa code.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=27355 .
Signed-off-by: NMichel Dänzer <daenzer@vmware.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

Some GPUs have an APM/ACPI PM mode selection switch and some BIOSes
set this to APM. We really want this in ACPI mode for Linux.
Signed-off-by: NDave Airlie <airlied@redhat.com>

These GPUs should be setting these registers up also.
Signed-off-by: NDave Airlie <airlied@redhat.com>

If we resume in a bad way, we'll get 0xffffffff in wptr, and then
oops with no console. This just adds a sanity check so that we can
avoid the oops and hopefully get more details out of people's systems.
Signed-off-by: NDave Airlie <airlied@redhat.com>

Need to enable the VID stream after link training
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Turn off hw i2c by default except for mm i2c which
is hw only until we sort out the remaining prescale
issues on older chips.  hw i2c can be enabled with
hw_i2c=1.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This allows us to remove the internal bit algo bus used by
the radeon i2c algo.  We now register a radeon algo adapter
if the gpio line is hw capable and the hw inplementation is
available, otherwise we register a bit algo adapter.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Doesn't seem to work reliably and the pci quirks don't
always work.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

- Add module option to force the display priority
  0 = auto, 1 = normal, 2 = high
- Default to high on r3xx/r4xx/rv515 chips
  Fixes flickering problems during heavy acceleration
  due to underflow to the display controllers
- Fill in minimal support for RS600

v2 - update display priority when bandwidth is updated
so the user can change the parameter at runtime and it
will take affect on the next modeset.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Seems to have gotten lost in the evergreen merge.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Some systems have LCD* rather than DFP* device tags in the bios
for eDP connectors; notably the new apple iMac. This fixes
things up so eDP connectors with either tag will work.

v2: fix typo
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Looks like a copy/paste typo from when evergreen support
was added.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

- 8 lane links are not valid for DP
- remove unused num var
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This prevented radeon.test=1 from testing transfers from/to GTT beyond the
visible VRAM size.
Signed-off-by: NMichel Dänzer <daenzer@vmware.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Fix build error when CONFIG_MAGIC_SYSRQ is not enabled:

drivers/gpu/drm/drm_fb_helper.c:915: error: 'sysrq_drm_fb_helper_restore_op' undeclared (first use in this function)
drivers/gpu/drm/drm_fb_helper.c:929: error: 'sysrq_drm_fb_helper_restore_op' undeclared (first use in this function)
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

- remove a few more drm only regs
- remove sampler, alu, bool, loop constant regs.
  They are set via separate packet3's already
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

- Drop some more safe regs taht userspace shouldn't hit
- Constant base regs need relocs.  This allows us to use
constant buffers rather than the constant register file.
Also we don't want userspace to be able to set arbitrary
mc base values for the const caches.
- Track SQ_CONFIG so we know whether userspace is using
the cfile or constant buffers.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Only the drm should be touching them.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Replace a BUG_ON with an error code in the event that the inode mapping
changes between calls to drm_open. This may happen for instance if udev
is loaded subsequent to the original opening of the device:

[  644.291870] kernel BUG at drivers/gpu/drm/drm_fops.c:146!
[  644.291876] invalid opcode: 0000 [#1] SMP
[  644.291882] last sysfs file: /sys/kernel/uevent_seqnum
[  644.291888]
[  644.291895] Pid: 7276, comm: lt-cairo-test-s Not tainted 2.6.34-rc1 #2 N150/N210/N220             /N150/N210/N220
[  644.291903] EIP: 0060:[<c11c70e3>] EFLAGS: 00210283 CPU: 0
[  644.291912] EIP is at drm_open+0x4b1/0x4e2
[  644.291918] EAX: f72d8d18 EBX: f790a400 ECX: f73176b8 EDX: 00000000
[  644.291923] ESI: f790a414 EDI: f790a414 EBP: f647ae20 ESP: f647adfc
[  644.291929]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  644.291937] Process lt-cairo-test-s (pid: 7276, ti=f647a000 task=f73f5c80 task.ti=f647a000)
[  644.291941] Stack:
[  644.291945]  00000000 f7bb7400 00000080 f6451100 f73176b8 f6479214 f6451100 f73176b8
[  644.291957] <0> c1297ce0 f647ae34 c11c6c04 f73176b8 f7949800 00000000 f647ae54 c1080ac5
[  644.291969] <0> f7949800 f6451100 00000000 f6451100 f73176b8 f6452780 f647ae70 c107d1e6
[  644.291982] Call Trace:
[  644.291991]  [<c11c6c04>] ? drm_stub_open+0x8a/0xb8
[  644.292000]  [<c1080ac5>] ? chrdev_open+0xef/0x106
[  644.292008]  [<c107d1e6>] ? __dentry_open+0xd4/0x1a6
[  644.292015]  [<c107d35b>] ? nameidata_to_filp+0x31/0x45
[  644.292022]  [<c10809d6>] ? chrdev_open+0x0/0x106
[  644.292030]  [<c10864e2>] ? do_last+0x346/0x423
[  644.292037]  [<c108789f>] ? do_filp_open+0x190/0x415
[  644.292046]  [<c1071eb5>] ? handle_mm_fault+0x214/0x710
[  644.292053]  [<c107d008>] ? do_sys_open+0x4d/0xe9
[  644.292061]  [<c1016462>] ? do_page_fault+0x211/0x23f
[  644.292068]  [<c107d0f0>] ? sys_open+0x23/0x2b
[  644.292075]  [<c1002650>] ? sysenter_do_call+0x12/0x26
[  644.292079] Code: 89 f0 89 55 dc e8 8d 96 0a 00 8b 45 e0 8b 55 dc 83 78 04 01 75 28 8b 83 18 02 00 00 85 c0 74 0f 8b 4d ec 3b 81 ac 00 00 00 74 13 <0f> 0b eb fe 8b 4d ec 8b 81 ac 00 00 00 89 83 18 02 00 00 89 f0
[  644.292143] EIP: [<c11c70e3>] drm_open+0x4b1/0x4e2 SS:ESP 0068:f647adfc
[  644.292175] ---[ end trace 2ddd476af89a60fa ]---
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

When there is allocation failure in radeon_cs_parser_relocs parser->nrelocs
is not cleaned. This causes NULL pointer defeference in radeon_cs_parser_fini
when clean up code is trying to loop over the relocation array and free the
objects.

Fix adds a check for a possible NULL pointer in clean up code.
Signed-off-by: NPauli Nieminen <suokkos@gmail.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

radeon_gart_fini might call GART unbind callback function which
might try to access GART table but if gart_disable is call first
the GART table will be unmapped so any access to it will oops.
Signed-off-by: NJerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

We can get this if the user moves the mouse when we are waiting to move
some stuff around in the validate. Don't fail.

Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

Check that atom cmd and data tables are valid
before using them.

(v2)
- fix some whitespace errors noticed by Rafał Miłecki
- check a few more cases
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

- no longer needed with the latest new pll algo fixes.
- also don't use lcd pll limits.  They don't seem
to work well for all systems.  If we have a case where
they are useful, we can set the flag for that case.

fixes fdo bug 27083
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

I missed rs4xx in 7f1e613daf0fdd0884316ab25a749db3c671329e

Fixes fdo bug 27219.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

RS4xx+ IGP chips use an internal gart, however,
some of them have the agp cap bits set in their pci
configs.  Make sure to clear the AGP flag as AGP will
not work with them.

Should fix fdo bug 27225
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>