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Imre Deak [Tue, 30 Mar 2010 12:36:24 +0000 (15:36 +0300)]
gpu: pvr: add helpers to look up resource context and proc info
These are needed by an upcoming patch showing process info.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Tue, 30 Mar 2010 13:26:40 +0000 (16:26 +0300)]
gpu: pvr: clean up FreeResourceByCriteria
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Mark Underwood [Mon, 15 Mar 2010 12:01:29 +0000 (13:01 +0100)]
gpu: pvr: add support for finding the BM context from the DL
This allows us to find the BM context from the value of the directory list.
This is required for the next patch.
Signed-off-by: Mark Underwood <mark.underwood@imgtec.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 20:01:36 +0000 (23:01 +0300)]
gpu: pvr: make sure the device is powered on in SGX_MISRHandler
While SGX_MISRHandler is scheduled another code path of the driver
(IOCTL, SGXOSTimer) can race with it and turn the power off before
it starts to execute.
When this happens we get the following oops backtrace:
HWRecoveryResetSGX: SGX Hardware Recovery triggered
Unhandled fault: external abort on non-linefetch (0x1008)
PC is at HWRecoveryResetSGX+0x74/0x1b8 [pvrsrvkm]
LR is at preempt_schedule+0x44/0x54
(HWRecoveryResetSGX+0x0/0x1b8) from (SGX_MISRHandler+0x5c/0x60)
(SGX_MISRHandler+0x0/0x60) from (PVRSRVMISR+0x44/0xa0)
r5:
bf0a29cc r4:
dfbbbcc0
(PVRSRVMISR+0x0/0xa0) from (MISRWrapper+0x14/0x18)
r5:
00000002 r4:
00000000
(MISRWrapper+0x0/0x18) from (worker_thread+0x1d0/0x2cc)
(worker_thread+0x0/0x2cc) from (kthread+0x88/0x90)
(kthread+0x0/0x90) from (do_exit+0x0/0x680)
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 16:51:04 +0000 (19:51 +0300)]
gpu: pvr: remove unused per device variable
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 16:40:42 +0000 (19:40 +0300)]
gpu: pvr: fix indent error
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 14:08:51 +0000 (17:08 +0300)]
gpu: pvr: BUG if pvr_lock is not held in HWRecoveryResetSGX
Adding the check only to this one place, more can be added later.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 14:19:22 +0000 (17:19 +0300)]
gpu: pvr: fix locking in pvr_dbg_reset
HWRecoverResetSGX needs to be called with the pvr_lock held.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 12:50:28 +0000 (15:50 +0300)]
gpu: pvr: acquire the pvr lock on the SGX HW recovery path
We need to take the lock protecting all SW and HW state tracking
objects on the recovery reset path, since we are accessing objects
like the SGX command queue, or the per process memory and resource
management contexts.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 13:56:53 +0000 (16:56 +0300)]
gpu: pvr: fix locking on the HW interrupt path
- take pvr_lock in the interrupt handling work (MISR) thread, as from
there we can call functions accessing HW and SW state tracking objects.
An example is the SGX HW recovery function.
- make SGXOSTimerCancel asynchronous. This is safe now as a previous
patch made sure that the timer will not run after cancelled. We can't
do synchronous cancellation, because there would be an ABBA lockdep
problem involving the SGXOSTimer's mutex and pvr_lock:
MISR / IOCTL thread:
1. pvr_lock in PVRSRV_BridgeDispatchKM
2. timer's lock through SGXPrePowerState -> SGXOSTimerCancel
SGXOSTimer's thread:
1. timer's lock already taken when SGXOSTimer is called
2. pvr_lock in SGXOSTimer
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 14:53:20 +0000 (17:53 +0300)]
gpu: pvr: bail out from SGXOSTimer if it's been canceled
At the moment cancelling the timer is done in a synchronous way, so
we don't need to have the extra check. But a later patch will add
additional locking around the HW interrupt from where the timer can
be cancelled as well. Because of lock dependency issues described
in that patch we have to switch to an asynchronous way of cancelling
this timer and it means we need to have the extra check.
Also reset the flag indicating that the timer is cancelled when
destroying it. Currently we are both cancelling and destroying the
timer, but we really should just require calling the destroy function.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Wed, 31 Mar 2010 11:55:54 +0000 (14:55 +0300)]
gpu: pvr: add pvr_lock/remove unneeded lock headers
- Add a public interface for accessing this lock. It has been used
as a public interface anyway and an upcoming patch needs to access
it as well.
- Remove headers becoming unnecessary by this refactoring.
Note:
Currently this lock provides for a course level locking protecting
all HW and SW state tracking objects. We'll need to revise the use
of the following additional locks in the driver. Their existance
might not be justified, in which case we could just substitute
them with pvr_lock:
PVRSRVDvfsLock
PVRSRVPowerLock
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Imre Deak [Fri, 19 Mar 2010 22:08:32 +0000 (23:08 +0100)]
gpu: pvr: add support to set board specific max SGX functional clk rate
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Carsten Valdemar Munk [Wed, 15 Dec 2010 14:24:25 +0000 (09:24 -0500)]
gpu: pvr: move device registration into board file
Needed by an upcoming patch adding board specific device parameters.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Adapt for Nokia N900 MeeGo kernel
Signed-off-by: Carsten Munk <carsten@maemo.org>
Ameya Palande [Wed, 2 Jun 2010 12:04:01 +0000 (15:04 +0300)]
gpu: pvr: compilation fixes for kernel > 2.6.33
Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Nokia [Sat, 19 May 2012 14:13:28 +0000 (17:13 +0300)]
meego-device-adaptation import version
* PVR: upgrade to version 1.4
* PVR: fix memory corruption due to incorrect cache flushing
* pvr: fix SGX HW recovery resets seen during boot
* pvr: preparation for page flipping
* PVR: SGX 530r125 support
* PVR: add support for runtime detection of SGX HW revision
* PVR: fix SGX power management
* Fixes: NB#156444 - PVR: kernel crash when binding large texture
Nokia [Sat, 19 May 2012 13:39:19 +0000 (16:39 +0300)]
20100903+0m5
* Fixes: NB#149006 - PVR: fix kernel crash due to freeing resource still in
use
* Increase stability by removing race conditions in the PVR driver
* Fixes: NB#150134 - PVR: Fix races in the SGXOSTimer path
* Fixes: NB#140581 - PVR crashes kernel when flushing the Dcache
Nokia [Sat, 19 May 2012 13:19:45 +0000 (16:19 +0300)]
20094803.3+0m5
* Fixes: NB#141271 - Reduce MPU wakeups caused by SGX lockup
monitoring
* Fixes: NB#140010 - Fix PVR driver's cache flush IOCTL checking
* Fixes: NB#140591 - Fix PVR driver reading regs when the SGX HW is
off
Nokia [Sat, 19 May 2012 13:00:19 +0000 (16:00 +0300)]
20094102.3+0m5
* Fixes: NB#144114 - SGX HW locking up due to errors in PVR driver
memory mapping
* Fixes: NB#106381 - PVR kernel driver source incompatible with Linux
standards
Nokia [Sat, 19 May 2012 12:52:35 +0000 (15:52 +0300)]
20093908+0m5+flat+Lindent
* Fixes: NB#129392 - fix object reference counting in the PVR video
driver
* Fixes: NB#132086 - Framebuffer resets are ignored by the PVR driver
* Preparation for a change in the SGX library
* Fixes: NB#129389 - fix random PVR driver breakage
* Fixes: NB#128247 - fix size checking for PVR memory mapping requests
* Fixes: NB#126777 - PVR module can cause dead-lock at reboot time
* Fixes: NB#125756 - PVR triggers a lockdep warning
* Fixes: NB#111084 - SGX compilation warnings
* Fixes: NB#122294 - Performance regression in SGX operations caused
by DVFS
* Fixes: NB#121668 - PVR: error returned by drm_ttm_create is ignored
* Fixes: NB#121947 - PVR: memory should not be released twice
* Fixes: NB#119655 - PVR: random allocation failure for sizes > 4k
* Introduce a patch related to NB#108042 -
PVR: wrapped memory space runs out (not a complete fix)
* Fixes: NB#112118 - Fix PVR breakage when using DVFS
* Fix crashes due to power/clock state transitions in PVR
* Fixes: NB#110835 - PVR: lock dependency bug
* Enable dynamic power management for SGX
* upgrade to SGX 1.3 (fingers crossed)
Imagination Technologies/TI [Sat, 19 May 2012 12:47:09 +0000 (15:47 +0300)]
1.3.13.1607/3_00_00_08+flat+Lindent