msm: mdp: Release all fences on blank

Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
Signed-off-by: Iliyan Malchev <malchev@google.com>
msm : display: buffer sync point update

Do not put sync point if it has been added to
a fence successfully in error handling

Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>

Conflicts:

	drivers/video/msm/msm_fb.c
msm: display: check get_unused_fd_flags return val

Not checking the error code, which might be negative, will cause us to wrongly
reference fdt[fd] by using the error code, causing kernel panic in fd_install.

Change-Id: I1f8e68e74bdbdd5b81bc3450f7d93b5cd96c9439
Signed-off-by: Iliyan Malchev <malchev@google.com>
msm: kgsl: Detect and avoid malformed ioctl codes

Because we were using _IO_NR, one could construct a malformed ioctl
code that would avoid allocating memory yet go to a function that
expected that memory. Still use _IO_NR to index the array of ioctls,
but check that the full values match before jumping to the helper
function.

CRs-fixed: 385592
Change-Id: Ic0dedbaded469035bd0a2bb0f20fecb2a3045ca5
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
kgsl: fix  stability issue after sync support
gpu: ion: Add dummy msm_ion header file

The msm specific parts of ion.h are being moved into a new header
file. For now, add a dummy header file to get clients transitioned
over.

Change-Id: Iac039678e1c3f15d87e67aa667f7e9883ca16669
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
msm: kgsl: remove unnecessary definitions for dup and has_signaled

The dup and has_signaled functions are not called outside kgsl_sync.c

Change-Id: I69d746f4e4acae9b4f5a3a2cac79ac812e5eff5c
Signed-off-by: Jeff Boody <jboody@codeaurora.org>
msm: kgsl: Update pagetable on context destruction for A20x

Ensure that pagetable is updated during context destruction. This
resolves stability issues during Camera launch/exit scenarios. Applies
only to A20x GPUs. This change is already done for Z180 device.

Change-Id: I978cbce49ed2b45be0209c2939b1b8423c68d5ec
CRs-fixed: 381875
Signed-off-by: Ranjhith Kalisamy <ranjhith@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: kgsl: Limit GPU memory buffer allocation sizes

Limit the size of individual GPU memory allocations to the amount of
free memory on the system minus 32MB.  This early check gives us the
chance to verify that the user didn't ask for an obscene amount of
memory, and also to limit the chance that an allocation attempt will
invoke the OOM killer.

The 32MB buffer in particular should keep us out of the clutches of
the OOM killer. That number is the same amount of buffer used in
the page allocation alogrithms and it should keep the GPU from further
throwing fuel on the fire of a low memory situation.

Change-Id: Ic0dedbadcc5ee9cc0d77056b1a22eed5c385d636
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: kgsl: Set the gpu address range for MMU to correct value

Set the upper limit for the gpu address that the MMU can access to
be the base address where the first IOMMU units register space
is mapped. Earlier we set it to the last address mapped minus
a PAGE_SIZE, but we can actually set it to the base address of the
first mapped unit since the GPU should never access that space
unless we are updating IOMMU registers.

Change-Id: I6507ee373a9218210c148685e443e948a311bd29
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: kgsl: Turn on additional clock for IOMMU

Turn on an additional clock for IOMMU if it is valid. This additional
clock is present on devices which have the IOMMU unit access tied to
the core clock of another component. This has been introduced from
IOMMU-v2 onwards.

Change-Id: I8b0a0f23cb789d820a8d515cae54b44f556e634d
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: kgsl: Don't report io_busy for msm policy

Turn io_fraction to 100 so that the kernel
wait_io_interruptible call is not required for io_busy
reporting while using msm policy. Msm policy uses its
own schema to capture busy events.

Change-Id: Iddb63552305974ce4a12446117f27d07b7201387
Signed-off-by: Suman Tatiraju <sumant@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: iommu: Support alternate core clocks

Refactor the IOMMU clock control code to always require a
core clock as well as an interface clock. Add support for
an optional alternate core clock and update device tree
bindings accordingly. Clean up the probe function to remove
needless enabling / disabling of clocks.

Change-Id: I4d744ffabc1e6fb123bacfda324f64408257cb25
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
msm: kgsl: Do not save context if it is being destroyed

No need to save a context if it is being destroyed since
it will no longer be used at all. This is better for
performance and also avoids the use of legacy kgsl
context save code for contexts that use preambles

Change-Id: I19a64e82188b4132f353bb61c21e4ed2281092fc
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: kgsl: Increase REG_RBBM_CNTL value to 0xFFFF for A20X

Increase number of clocks that RBBM will wait before de-asserting
the Register Clock Active signal. This fixes kernel panics during
stability tests on multiple devices

Change-Id: I6f7f8bb17cfd9c5beed0fd21d56ab6ab9fd40195
Signed-off-by: Rammohan Basavaraju <rammoh@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
msm: kgsl: Pass multiple register sets to the snapshot
 register dump

Expand the snapshot register dump helper function to support multiple
sets of registers.  This will be useful for derivative GPUS that
use a global subset of registers and add a few new ones.  This will
not be useful for chipsets that have extensive changes to existing
registers.

Change-Id: Ic0dedbad05bcc3b5a3a0cc933659959965ff5817
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>