Change FORCEWAKE & co. reads for the error state to use I915_READ_FW().
Reading a FORCEWAKE register using a function that can frob forcewake
just seems wrong.
There is a check to skip grabbing the forcewake for accessing FORCEWAKE
in intel_uncore.c, but there's no such check for FORCEWAKE_MT. So no
idea what is currently happening with FORCEWAKE_MT reads. FORCEWAKE_VLV
is fortunately outside the forcewake range anyway, so no actual issue
with that one.
So let's just make the rule that you can't access FORCEWAKE registers with
the normal I915_READ() stuff, and we can drop the extra FORCEWAKE check
from NEEDS_FORCEWAKE(). While at it use NEEDS_FORCEWAKE() on BDW, where
it was skipped for whatever bikeshed reason that I've already forgotten.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445517300-28173-3-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
There's no need for __raw_i915_read8() & co. to be macros, so make them
inline functions. To avoid typo mistakes generate the inline functions
using preprocessor templates.
We have a few users of the raw register acces functions outside
intel_uncore.c, so let's also move the functions into intel_drv.h.
While doing that switch I915_READ_FW() & co. to use the
__raw_i915_read() functions, and use the _FW macros everywhere
outside intel_uncore.c where we want to read registers without
grabbing forcewake and whatnot. The only exception is
i915_check_vgpu() which itself gets called from intel_uncore.c,
so using the __raw_i915_read stuff there seems appropriate.
v2: Squash in the intel_uncore.c->i915_drv.h move
Convert I915_READ_FW() to use __raw_i915_read(), and use
I915_READ_FW() outside of intel_uncore.c (Chris)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445517300-28173-2-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Not much core work here, a few small tweaks to interfaces but mainly the
changes here are driver ones. Highlights include:
- Updates to the topology userspace interface
- Big updates to the Renesas support from Morimoto-san
- Most of the support for Intel Sky Lake systems.
- New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825 and Rockchip
S/PDIF.
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Merge tag 'asoc-v4.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v4.4
Not much core work here, a few small tweaks to interfaces but mainly the
changes here are driver ones. Highlights include:
- Updates to the topology userspace interface
- Big updates to the Renesas support from Morimoto-san
- Most of the support for Intel Sky Lake systems.
- New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825 and Rockchip
S/PDIF.
- A new driver for the Atmel Class D speaker drivers
Struct of gem object in exynos_drm driver is struct exynos_drm_gem_obj.
It's too long and we can know its meaning of name without _obj postfix.
We use several names to variable name of gem object for exynos_drm -
exynos_gem_obj, gem_obj and obj. Especially "obj" name can cause
misunderstanding with variable name "obj" of struct drm_gem_object.
This will clean about name of gem object for exynos_drm as follows.
s/struct exynos_drm_gem_obj/struct exynos_drm_gem
s/exynos_gem_obj or gem_obj or obj/exynos_gem
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
The arm_iommu_detach_device() is a function to detach device of iommu
attached by arm_iommu_attach_device(). The exynos-drm uses
arm_iommu_attach_device() so it should use arm_iommu_detach_device() to
detach device of iommu, not iommu_detach_device().
The drm_release_iommu_mapping() is a function to release mapping of
iommu created by arm_iommu_create_mapping(). It is called by
exynos_drm_unload() so shouldn't be called by drm_iommu_detach_device().
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Set one of the planes for each crtc driver as a cursor plane enabled
window managers to fully work on exynos.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Define DEFAULT_WIN as zero to help set the primary plane on all CRTCs.
Some CRTCs were defining a variable to store the default window, but that
is not necessary as the default (primary) window is always the window zero.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This patch fixes calling usleep_range() after taking reg_slock
using spin_lock_irqsave(). The mdelay() is used instead.
Waiting in atomic context is not the best idea in general.
Hopefully, waiting occurs only when Video Processor fails
to reset correctly.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Simple formula can be used to calculate CTS and N coefficients.
Additionaly ACR registers have different offsets for different versions
of IP.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Inline function is safer than macro, also the name has been changed to
be consistent with other inline function encoder_to_hdmi.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
hdmi_resources structure was filled by old platform data code and is not
necessary anymore. The patch removes it at groups together resource related
fields in hdmi_context.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
The patch converts API to gpiod and moves initialization code
to hdmi_resources_init.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Driver tries to disable sclk_hdmi during re-parenting, to avoid possible
glitches. It is ineffective as the clock is used also by other devices (mixer).
Anyway driver works without disabling sclk_hdmi.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Driver always uses the same number of regulators, so there is no point in
dynamic allocation.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
hdmi-en is an optional regulator so it should be better handled by
devm_regulator_get_optional call.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
DRM device should be destroyed before releasing resources.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Registers are 32-bit, even if only lower 8-bits are used.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Currently driver tries to set specific HDMI-PHY registers in three situations:
- before reset,
- before power off,
- after applying HDMI-PHY configuration.
First two cases seems to be unnecessary - register contents will be lost
anyway. The third case can be merged with HDMI-PHY configuration by fixing
the last byte of configuration data.
The patch has been tested with following platforms:
- exynos4210-universal_c210,
- exynos4412-odroidu3,
- exynos5422-odroidxu3.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
The patch moves PLL stabilization check to separate function, adjust timeout
parameters and de-duplicates code common for both HW variants.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Some registers resides at different offsets depending on device version.
This patch adds infrastructure for mapping such registers to proper address
based on hdmi_type. It adds also mappings to some registers.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This compatible was marked as deprecated in Jun 2013 and it is not used since
then. Additionally its driver data points to wrong pll settings, so it
cannot work anyway.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
I'm not sure whether this patch comes in too late, but it would be good to
have it in. It stabilizes command submission in case of command buffer errors.
* 'vmwgfx-fixes-4.3' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Stabilize the command buffer submission code
Taking the grph update lock is only necessary when
updating the the secondary address (for single pipe stereo).
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Taking the grph update lock is only necessary when
updating the the secondary address (for single pipe stereo).
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Taking the grph update lock is only necessary when
updating the the secondary address (for single pipe stereo).
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Since we're not synchronizing the ring request list during error state capture
the request list state might change between the time the corresponding error
request list was allocated and dimensioned to the time when the ring request
list is actually captured into the error state. If this happens then do an
early exit and be aware that the captured error state might not be fully
reliable.
* v2:
- Chris Wilson: Removed WARN_ON from size check since having the error state
request list and the live driver request list diverge like this is a
legitimate behaviour.
- Tomas Elf: Removed update of num_request field since this made no sense. Just
exit and move on.
* v3:
- Chris Wilson: Removed error message at the point of early exit. The user is
not interested in any state changes happening during the error state capture,
only in the state that we're trying to capture at the point of the error.
Signed-off-by: Tomas Elf <tomas.elf@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This reverts commit 5105672341.
I somehow managed to combine a patch from Tomas Elf with a totally
unrelated commit message from Chris Wilson. Let's revert this and
reapply properly.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
We get tons of cases where the master interrupt handler apparently set
a bit, with the SDEIIR disagreeing. No idea what's going on there, but
it's consistent on gen8+, no one seems to care about it and it's
making CI results flaky.
Shut it up.
No idea what's going on here, but we've had fun with PCH interrupts
before:
commit 44498aea29
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Feb 22 17:05:28 2013 -0300
drm/i915: also disable south interrupts when handling them
Note that there's a regression report in Bugzilla, and other
regression reports on the mailing lists keep croping up. But no ill
effects have ever been reported. But for paranoia still keep the
message at a debug level as a breadcrumb, just in case.
This message was introduced in
commit 38cc46d73e
Author: Oscar Mateo <oscar.mateo@intel.com>
Date: Mon Jun 16 16:10:59 2014 +0100
drm/i915/bdw: Ack interrupts before handling them (GEN8)
v2: Improve commit message a bit.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445590572-23631-2-git-send-email-daniel.vetter@ffwll.ch
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92084
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80896
Acked-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
DRM_MSM_FBDEV config is used to enable/disable fbdev emulation for the
msm kms driver.
Replace this with the top level DRM_FBDEV_EMULATION config option where
applicable. This also prevents build breaks caused by undefined
drm_fb_helper_* functions when legacy fbdev support was disabled.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change adds the basic MDP5 support for MSM8996.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
In order to produce an image, the scalar needs to be fed extra
pixels. These top/bottom/left/right values depend on a various of
factors, including resolution, scaling type, phase step and
initial phase.
Pixel Extension are programmed by hardware in most targets - and
can be overwritten by software. For some targets (e.g.: msm8996),
software *must* program those registers.
In order to ease this computation, let's always use bilinear
filters, which are easier to program from kernel. Eventually,
all of these values will come down from user space for better
quality.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
When calculating phase steps, let's use the same enum
mdp_component_type in order to ease the readability; 0/1 indexes
are a bit confusing and we now have explicit values to index
this type of arrays.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
The HDMI controller is new in MDP5 v1.7. As of now, this change
doesn't reflect the novelty and only adds the basics so the probe
gets triggered.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
The current behavior is to try to get optional clocks and print a
dev_err message in case of failure. This looks rather confusing
and may increase with the amount of optional clocks.
We may need a cleaner way to handle per-device clocks but in the
meantime, let's reduce the amount of dev_err messages during the
probe.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
msm_iommu_new() can fail and this change makes sure that we
detect the failure and free the allocated domain before going
any further.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
We want to make sure we control all the information being passed
down to SMP block. Having access to the cfg pointer here may create
bad things in the future.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
The current settings for 28nm PHY data lane CFG4 registers do
not work with certain panels. This change is to modify them to
hw recommended values.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
In some configurations the supplies are voltage switches and not LDOs,
making the set voltage call to fail. Check with the regulator framework
if the supply can change voltage before attempting.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Grab execlist lock when cleaning up execlist queues after GPU reset to avoid
concurrency problems between the context event interrupt handler and the reset
path immediately following a GPU reset.
* v2 (Chris Wilson):
Do execlist check and use simpler form of spinlock functions.
Signed-off-by: Tomas Elf <tomas.elf@intel.com>
Reviewed-by: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
commit 0706f17c30
Author: Egbert Eich <eich@suse.de>
Date: Wed Sep 23 16:15:27 2015 +0200
drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt, v2
added a check with WARN to ensure only bits within the mask are
enabled. Turns out that doesn't hold for G4X, which spits out:
[ 2.641439] ------------[ cut here ]------------
[ 2.641444] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/i915/i915_irq.c:182 i915_hotplug_interrupt_update_locked+0x45/0x83()
[ 2.641446] WARN_ON(bits & ~mask)
etc.
Add CRT_HOTPLUG_ACTIVATION_PERIOD_64 to the mask to fix the warning.
Reported-and-tested-by: Oleksij Rempel <linux@rempel-privat.de>
References: https://bugzilla.kernel.org/show_bug.cgi?id=104991
Fixes: 0706f17c30 ("drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt, v2")
Cc: Egbert Eich <eich@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1445437363-3030-1-git-send-email-jani.nikula@intel.com
Userspace can pass in an offset that it presumes the object is located
at. The kernel will then do its utmost to fit the object into that
location. The assumption is that userspace is handling its own object
locations (for example along with full-ppgtt) and that the kernel will
rarely have to make space for the user's requests.
v2: Fix i915_gem_evict_range() (now evict_for_vma) to handle ordinary
and fixed objects within the same batch
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Daniel, Thomas" <thomas.daniel@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
rcar-du support for r8a7793/4
* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev:
drm: rcar-du: Add support for the R8A7794 DU
drm: rcar-du: Add support for the R8A7793 DU
