Commit Graph

44 Commits

Author SHA1 Message Date
Kees Cook 6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Masahiro Yamada 64a9dfc447 drm/radeon: fix include notation and remove -Iinclude/drm flag
Include <drm/*.h> instead of relative path from include/drm, then
remove the -Iinclude/drm compiler flag.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-14-git-send-email-yamada.masahiro@socionext.com
2017-05-17 14:36:40 +02:00
Jérome Glisse 3cf8bb1ad1 drm/radeon: fix indentation.
I hate doing this but it hurts my eyes to go over code that does not
comply with indentation rules. Only thing that is not only space change
is in atom.c all other files are space indentation issues.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-03-16 18:08:06 -04:00
Alex Deucher 9c565e3386 drm/radeon: make some dpm errors debug only
"Could not force DPM to low", etc. is usually harmless and
just confuses users.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2015-11-25 11:28:42 -05:00
Alex Deucher 4e7697ed79 drm/radeon: make rv770_set_sw_state failures non-fatal
On some cards it takes a relatively long time for the change
to take place.  Make a timeout non-fatal.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=76130

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2015-11-24 12:48:15 -05:00
Alex Deucher 296deb7167 drm/radeon/rv7xx/eg: implement get_current_sclk/mclk
Will be used for exposing current clocks via INFO ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-03-19 12:26:30 -04:00
Alex Deucher 49ead33b9f drm/radeon: comment out some currently unused 7xx dpm code
Keep it around for reference.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-01-22 10:38:58 -05:00
Michele Curti 01467a9b5e drm/radeon: reduce sparse false positive warnings
include radeon_asic.h header file in the various xxx_dpm.c files
to reduce sparse false positive warnings. Not so great patch
in itself, but reducing warning count from 391 to 258 may help
to see real problems..

Signed-off-by: Michele Curti <michele.curti@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-10-16 18:34:10 -04:00
Alexandre Demers 41959341ac drm/radeon/dpm: Reenabling SS on Cayman
It reverts commit c745fe611c now that
Cayman is stable since VDDCI fix. Spread spectrum was not the culprit.

This depends on b0880e87c1
(drm/radeon/dpm: fix vddci setup typo on cayman).

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-07-10 17:01:30 -04:00
Dave Airlie 4d538b7919 Merge branch 'drm-next-3.15' of git://people.freedesktop.org/~deathsimple/linux into drm-next
So this is the initial pull request for radeon drm-next 3.15. Highlights:
- VCE bringup including DPM support
- Few cleanups for the ring handling code

* 'drm-next-3.15' of git://people.freedesktop.org/~deathsimple/linux:
  drm/radeon: cleanup false positive lockup handling
  drm/radeon: drop radeon_ring_force_activity
  drm/radeon: drop drivers copy of the rptr
  drm/radeon/cik: enable/disable vce cg when encoding v2
  drm/radeon: add support for vce 2.0 clock gating
  drm/radeon/dpm: properly enable/disable vce when vce pg is enabled
  drm/radeon/dpm: enable dynamic vce state switching v2
  drm/radeon: add vce dpm support for KV/KB
  drm/radeon: enable vce dpm on CI
  drm/radeon: add vce dpm support for CI
  drm/radeon: fill in set_vce_clocks for CIK asics
  drm/radeon/dpm: fetch vce states from the vbios
  drm/radeon/dpm: fill in some initial vce infrastructure
  drm/radeon/dpm: move platform caps fetching to a separate function
  drm/radeon: add callback for setting vce clocks
  drm/radeon: add VCE version parsing and checking
  drm/radeon: add VCE ring query
  drm/radeon: initial VCE support v4
  drm/radeon: fix CP semaphores on CIK
2014-02-27 14:39:30 +10:00
Alex Deucher 78b0351019 drm/radeon/dpm: reduce r7xx vblank mclk threshold to 200
Most laptops seems to have a vblank period of less than
300 and mclk switching works fine.  Drop the quirk and
set the default threshold to 200.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=70701

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 13:41:02 -05:00
Alex Deucher 82f79cc54b drm/radeon/dpm: move platform caps fetching to a separate function
It's needed by by both the asic specific functions and the
extended table parser.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 16:11:30 +01:00
Alex Deucher 299302294e drm/radeon/dpm: use stored max_vddc rather than looking it up
When we parse the power tables use the stored mac_vddc value
rather than lookig it up manually each time.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-06 12:22:47 -05:00
Alex Deucher 8097d94116 drm/radeon/dpm: disable mclk switching on desktop RV770
Mclk switching doesn't seem to work reliably on these
cards.  Most RV770 boards specify the same mclk for all
performance levels anyway so in most cases, this has
no affect.

Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73067

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-01-20 18:20:55 -05:00
Alex Deucher f5f1f897c8 drm/radeon: add query to fetch the max engine clock (v2)
This is needed for reporting the max GPU engine clock
in OpenCL.  This just reports the max possible engine
clock, it does not take into account current conditions
that may limit that clock.

v2: fix query number for merge with 3.13

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-01-20 18:20:29 -05:00
Dave Airlie cfd72a4c20 Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
drm-intel-next-2014-01-10:
- final bits for runtime D3 on Haswell from Paul (now enabled fully)
- parse the backlight modulation freq information in the VBT from Jani
  (but not yet used)
- more watermark improvements from Ville for ilk-ivb and bdw
- bugfixes for fastboot from Jesse
- watermark fix for i830M (but not yet everything)
- vlv vga hotplug w/a (Imre)
- piles of other small improvements, cleanups and fixes all over

Note that the pull request includes a backmerge of the last drm-fixes
pulled into Linus' tree - things where getting a bit too messy. So the
shortlog also contains a bunch of patches from Linus tree. Please yell if
you want me to frob it for you a bit.

* 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (609 commits)
  drm/i915/bdw: make sure south port interrupts are enabled properly v2
  drm/i915: Include more information in disabled hotplug interrupt warning
  drm/i915: Only complain about a rogue hotplug IRQ after disabling
  drm/i915: Only WARN about a stuck hotplug irq ONCE
  drm/i915: s/hotplugt_status_gen4/hotplug_status_g4x/
2014-01-20 10:21:54 +10:00
Alex Deucher e14cd2bbcb drm/radeon/dpm: switch on new late_enable callback
Right now it's called right after enable, but after
reworking the dpm init order, it will get called later
to accomodate loading the smc early, but enabling
thermal interrupts and block powergating later after
the ring tests are complete.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-12-24 17:56:50 -05:00
Alex Deucher a3f1124515 drm/radeon/dpm: add late_enable for rv7xx-NI
Make sure interrupts are enabled
before we enable thermal interrupts.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-12-24 17:55:26 -05:00
Alex Deucher c745fe611c drm/radeon/dpm: disable ss on Cayman
Spread spectrum seems to cause hangs when dynamic clock
switching is enabled.  Disable it for now. This does not
affect performance or the amount of power saved. Tracked
down by Martin Andersson.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69723

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-12-17 09:23:15 -05:00
Alex Deucher 1cd8b21aa2 drm/radeon/dpm: rework auto performance level enable
Calling force_performance_level() from set_power_state()
doesn't work on some asics because the current power
state pointer has not been properly updated at that point.
Move the calls to force_performance_level() out of the
asic specific set_power_state() functions and into
the main power state sequence.

Fixes dpm resume on SI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15 20:27:52 -04:00
Alex Deucher 84f3d9f7b4 drm/radeon/dpm: fix fallback for empty UVD clocks
Some older 6xx-7xx boards didn't always fill in the
UVD clocks properly in the UVD power states.  This
leads to the driver trying to set a 0 clock which
results in slow or broken UVD playback.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=69120

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-11 11:44:34 -04:00
Alex Deucher bdcc031bc7 drm/radeonn: gcc fixes for rv7xx/eg/btc dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:18 -04:00
Alex Deucher f75195cac3 drm/radeon/dpm: add reclocking quirk for ASUS K70AF
The LCD has a relatively short vblank time (216us), but
the card is able to reclock memory fine in that time.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reported-by: normalrawr@gmail.com
2013-08-30 16:30:37 -04:00
Alex Deucher b841ce7b41 drm/radeon/dpm: fix spread spectrum setup (v2)
Need to check for engine and memory clock ss separately
and only enable dynamic ss if either of them are found.

This should fix systems which have a ss table, but do
not have entries for engine or memory.  On those systems
we may enable dynamic spread spectrum without enabling
it on the engine or memory clocks which can lead to a
hang in some cases.

fixes some systems reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=66963

v2: fix typo

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-07 17:37:10 -04:00
Alex Deucher fda837241f drm/radeon/dpm: adjust thermal protection requirements
On rv770 and newer, clock gating is not required
for thermal protection.  The only requirement is that
the design utilizes a thermal sensor.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-07 17:37:09 -04:00
Alex Deucher 1294d4a36d drm/radeon: add a module parameter to disable aspm
Can cause hangs when enabled in certain motherboards.
Set radeon.aspm=0 to disable aspm.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-17 14:52:46 -04:00
Alex Deucher b06195d994 drm/radeon/dpm: implement vblank_too_short callback for 7xx
Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-08 17:40:31 -04:00
Alex Deucher 222dc9a072 drm/radeon/dpm: fix display_gap programming on rv7xx
Check the driver state rather than the register as the
crtc registers may not be enabled yet.

Should fix:
https://bugzilla.kernel.org/show_bug.cgi?id=60510
https://bugs.freedesktop.org/show_bug.cgi?id=66651

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-08 17:39:51 -04:00
Alex Deucher 8b5e6b7f0e drm/radeon/dpm: implement force performance levels for 7xx/eg/btc
Allows you to limit the selected power levels via sysfs.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-05 18:09:30 -04:00
Mike Lothian bf0936e196 drm/radeon/dpm: fix compilation with certain versions of gcc
Add #include <linux/seq_file.h> to *_dpm.c files

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-02 18:32:01 -04:00
Alex Deucher bd210d11cd drm/radeon/dpm: add debugfs support for 7xx/evergreen/btc
This allows you to look at the current DPM state via
debugfs.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-01 16:08:32 -04:00
Alex Deucher e38bb5aeef drm/radeon/dpm: fix typo in setting uvd clock
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:40:09 -04:00
Alex Deucher 173dbb0ef6 add dpm_set_power_state failure output (7xx-ni)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:40:08 -04:00
Alex Deucher 72dd2c54ee drm/radeon/dpm: add dpm_set_power_state failure output (7xx-ni)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:40:07 -04:00
Alex Deucher fa4b5471bd drm/radeon/dpm: add dpm_enable failure output (7xx-ni)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:40:05 -04:00
Alex Deucher b97721f311 drm/radeon/dpm/r7xx: properly catch errors in dpm setup
We weren't properly catching errors in dpm_enable()
and dpm_set_power_state().

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:16:50 -04:00
Alex Deucher 2abba66e7a drm/radeon: update radeon_atombios_get_default_voltages for mvdd
Add a way to look up the bootup mvdd.  Required for DPM on SI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:16:40 -04:00
Alex Deucher 58653abdd2 drm/radeon: update radeon_atom_is_voltage_gpio() for SI
SI uses a new atom table.  Required for DPM on SI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:16:24 -04:00
Alex Deucher 5d77d77641 drm/radeon/dpm/rv7xx: restructure code
Needed to properly handle dynamic state adjustment.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:16:12 -04:00
Alex Deucher d22b7e406a drm/radeon/dpm: fixup dynamic state adjust for btc (v2)
Use a dedicated copy of the current power state since
we may have to adjust it on the fly.

v2: fix up redundant state sets

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:15:53 -04:00
Alex Deucher f85392bcf9 drm/radeon: add dpm UVD handling for evergreen/btc asics
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:15:47 -04:00
Alex Deucher 7c464f68b3 drm/radeon: add dpm UVD handling for r7xx asics
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:15:46 -04:00
Alex Deucher dc50ba7f9a drm/radeon/kms: add dpm support for evergreen (v4)
This adds dpm support for evergreen asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage, rename ulv struct
v3: fix thermal interrupt check notices by Jerome
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:15:22 -04:00
Alex Deucher 66229b2005 drm/radeon/kms: add dpm support for rv7xx (v4)
This adds dpm support for rv7xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:14:59 -04:00