The divider value to convert from CZ clock rate to ms needs a +1
adjustment on VLV just like on CHV. This matches both the spec and
the accuracy test by pm_rc6_residency.
v2:
- simplify logic checking for the CHV 320MHz special case (Rodrigo)
Testcase: igt/pm_rc6_residency
Signed-off-by: Imre Deak <imre.deak@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76877
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On VLV/CHV the media well rc6 residency gets reported separately
from the render well, so add another file to sysfs so that we can
report the residency to the user.
Testcase: igt/pm_rc6_residency --run-subtest media-rc6-accuracy
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The frequency values(Rp0, Rp1, Rpn) reported by RP_STATE_CAP register
are stored, initially by the Driver, inside the dev_priv->rps structure.
Since these values are expected to remain same throughout, there is no real
need to read this register, on dynamic basis, from certain debugfs/sysfs
functions and the values can be instead retrieved from the dev_priv->rps
structure when needed.
For the i915_frequency_info debugfs interface, the frequency values from the
RP_STATE_CAP register only should be used, to indicate the actual Hw state,
since it is principally used for the debugging purpose.
v2: Reverted the changes in i915_frequency_info function, to continue report
back the frequency values, as per the actual Hw state (Chris)
Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Replace the valleyview_set_rps() and gen6_set_rps() calls with
intel_set_rps() which itself does the IS_VALLEYVIEW() check. The
code becomes simpler since the callers don't have to do this check
themselves.
Most of the change was performe with the following semantic patch:
@@
expression E1, E2, E3;
@@
- if (IS_VALLEYVIEW(E1)) {
- valleyview_set_rps(E2, E3);
- } else {
- gen6_set_rps(E2, E3);
- }
+ intel_set_rps(E2, E3);
Adding intel_set_rps() and making valleyview_set_rps() and gen6_set_rps()
static was done manually. Also valleyview_set_rps() had to be moved a
bit avoid a forward declaration.
v2: Use a less greedy semantic patch
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Replace all the vlv_gpu_freq(), vlv_freq_opcode(),
*GT_FREQUENCY_MULTIPLIER, and /GT_FREQUENCY_MULTIPLIER instances
with intel_gpu_freq() and intel_freq_opcode() calls.
Most of the change was performed with the following semantic patch:
@@
expression E;
@@
(
- E * GT_FREQUENCY_MULTIPLIER
+ intel_gpu_freq(dev_priv, E)
|
- E *= GT_FREQUENCY_MULTIPLIER
+ E = intel_gpu_freq(dev_priv, E)
|
- E /= GT_FREQUENCY_MULTIPLIER
+ E = intel_freq_opcode(dev_priv, E)
|
- do_div(E, GT_FREQUENCY_MULTIPLIER)
+ E = intel_freq_opcode(dev_priv, E)
)
@@
expression E1, E2;
@@
(
- vlv_gpu_freq(E1, E2)
+ intel_gpu_freq(E1, E2)
|
- vlv_freq_opcode(E1, E2)
+ intel_freq_opcode(E1, E2)
)
@@
expression E1, E2, E3, E4;
@@
(
- if (IS_VALLEYVIEW(E1)) {
- E2 = intel_gpu_freq(E3, E4);
- } else {
- E2 = intel_gpu_freq(E3, E4);
- }
+ E2 = intel_gpu_freq(E3, E4);
|
- if (IS_VALLEYVIEW(E1)) {
- E2 = intel_freq_opcode(E3, E4);
- } else {
- E2 = intel_freq_opcode(E3, E4);
- }
+ E2 = intel_freq_opcode(E3, E4);
)
One hunk was manually undone as intel_gpu_freq() ended up
calling itself. Supposedly it would be possible to exclude
certain functions via !=~, but I couldn't get that to work.
Also the removal of vlv_gpu_freq() and vlv_opcode_freq() compat
wrappers was done manually.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently the 'gt_cur_freq_mhz' file shows the actual GPU frequency on
VLV/CHV, and the last requested frequency on other platforms. Change the
meaning of the file on VLV/CHV to follow the the other platforms, and
introduce a new file 'gt_act_freq_mhz' which shows the actual frequency
on all platforms.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently we don't call valleyview_set_rps() when changing the min/max
limits through sysfs if the current frequency is still within the new
limits. However that means we sometimes forget to update PMINTRMSK.
Eg. if the current frequency is at the old minimum, and then we reduce
the minum further we should then enable the 'down' interrupts in PMINTRMSK
but currently we don't.
Fix it up by always calling valleyview_set_rps() (just like we do for
!vlv/chv platforms). This also allows the code to be simplified a bit.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On VLV/CHV the rc6 residency calculations read a second register to
determine the actual units used for the residency value. The variable
name 'reg' where that register value is stored shadows the function
argument 'reg'. That can easily leave the reader utterly confused, so
rename the internal variable to 'clk_reg'.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Deepak S<deepak.s@intel.com>
[danvet: Spellfix in commit message.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Avoid to expose RC6 and RC6pp to the platforms that doesn't support it.
So powertop can be changed to show RC6p and RC6pp only on the platforms
they are available.
v2: Simplify by merging RC6p and RC6pp groups and respect the spec that
mentions deep and deepest RC6 on SNB and IVB although they keep disabled
by default.
v3: Remove unecessary space.
v4: RC6p and RC6pp is only for SNB and IVB; unify debug msg and use
has_rc6p() on sanitize options instead of is gen 6 and ivb.
v5: yet another fix on has_rc6p macro. final is_gen6 or is_ivb! To make sure
we are excluding hsw and baytrail.
References: https://bugs.freedesktop.org/show_bug.cgi?id=84524
Cc: Josh Triplett <josh.triplett@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Up until now, contexts had one (and only one) backing object that was
used by the hardware to save/restore render ring contexts (via the
MI_SET_CONTEXT command). Other rings did not have or need this, so
our i915_hw_context struct had a 1:1 relationship with a a real HW
context.
With Logical Ring Contexts and Execlists, this is not possible anymore:
all rings need a backing object, and it cannot be reused. To prepare
for that, rename our contexts to the more generic term intel_context.
No functional changes.
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
These debugfs entries access registers that need the D0 power state so
get an RPM ref for them.
v2:
- for all these entries we only need D0 state, so get only an RPM ref,
not a power domain ref (Daniel, Paulo)
- the dpio entry is not an issue any more as it got removed (Ville)
- restore commit message from v1 (Paulo)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
With the renamed RPS struct members, it's easier to skip the local
variables which no longer clarify anything, and if anything just make
the code harder to read.
The real motivation for this patch is actually the next patch, which
attempts to consolidate some of the functionality.
Cc: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The values created at initialization must always exist to use the
interface. Reading them again is confusing, and pointless.
More cleanups are coming in the next patch. Since I am not 100% certain,
moreover on BYT, (though I am extremely close to that) that there is no
need to leave the MMIO here, I wanted to make it a separate patch for
the bisectable 'just-in-case'
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The names of the struct members for RPS are stupid. Every time I need to
do anything in this code I have to spend a significant amount of time to
remember what it all means. By renaming the variables (and adding the
comments) I hope to clear up the situation. Indeed doing this make some
upcoming patches more readable.
I've avoided ILK because it's possible that the naming used for Ironlake
matches what is in the docs. I believe the ILK power docs were never
published, and I am too lazy to dig them up.
v2: leave rp0, and rp1 in the names. It is useful to have these limits
available at times. min_freq and max_freq (which may be equal to rp0, or
rp1 depending on the platform) represent the actual HW min and max.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
sysfs changes to rps min and max delay were only triggering an update
of the rps interrupt limits if the active delay required an update.
This change ensures that interrupt limits are always updated.
v2: correct compile issue missed on rebase
v3: add igt testcases to signed-off-by section
Testcase: igt/pm_rps/min-max-config-idle
Testcase: igt/pm_rps/min-max-config-loaded
Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull in Jani's backlight rework branch. This was merged through a
separate branch to be able to sort out the Broadwell conflicts
properly before pulling it into the main development branch.
Conflicts:
drivers/gpu/drm/i915/intel_display.c
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The RPS register writing routines use the current value of min/max to
set certain limits and interrupt gating. If we set those afterwards, we
risk setting up the hw incorrectly and losing power management events,
and worse, trigger some internal assertions.
Reorder the calling sequences to be correct, and remove the then
unrequired clamping from inside set_rps(). And for a bonus, fix the bug
of calling gen6_set_rps() from Valleyview.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
CC: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
v2: Fixed the botched locking on init_hw failure in i915_reset (Ville)
Call cleanup_ringbuffer on failed context create in init_hw (Ville)
v3: Add dev argument ti clean_ringbuffer
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Imre Deak
Akash Goel
Ville Syrjälä
Rodrigo Vivi
Chris Wilson
Mika Kuoppala
Deepak S
Oscar Mateo
Ben Widawsky
Jeff McGee
Paulo Zanoni
Daniel Vetter