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path: root/drivers/gpu/drm/radeon/radeon_semaphore.c
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2014-02-18drm/radeon: fix CP semaphores on CIKChristian König1-3/+16
The CP semaphore queue on CIK has a bug that triggers if uncompleted waits use the same address while a signal is still pending. Work around this by using different addresses for each sync. Signed-off-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-11-15drm/radeon: allow semaphore emission to failChristian König1-32/+95
To workaround bugs and/or certain limits it's sometimes useful to fall back to waiting on fences. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2013-11-15drm/radeon: add semaphore trace pointChristian König1-1/+5
Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2013-01-15drm/radeon: improve semaphore debugging on lockupJerome Glisse1-0/+4
Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-10-02UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/David Howells1-1/+1
Convert #include "..." to #include <path/...> in drivers/gpu/. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-10-02UAPI: (Scripted) Remove redundant DRM UAPI header #inclusions from drivers/gpu/.David Howells1-1/+0
Remove redundant DRM UAPI header #inclusions from drivers/gpu/. Remove redundant #inclusions of core DRM UAPI headers (drm.h, drm_mode.h and drm_sarea.h). They are now #included via drmP.h and drm_crtc.h via a preceding patch. Without this patch and the patch to make include the UAPI headers from the core headers, after the UAPI split, the DRM C sources cannot find these UAPI headers because the DRM code relies on specific -I flags to make #include "..." work on headers in include/drm/ - but that does not work after the UAPI split without adding more -I flags. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-06-21drm/radeon: rework ring syncing codeChristian König1-46/+25
Move inter ring syncing with semaphores into the existing ring allocations, with that we need to lock the ring mutex only once. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com>
2012-05-09drm/radeon: rip out the ib poolJerome Glisse1-1/+1
It isn't necessary any more and the suballocator seems to perform even better. Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-09drm/radeon: simplify semaphore handling v2Jerome Glisse1-114/+23
Directly use the suballocator to get small chunks of memory. It's equally fast and doesn't crash when we encounter a GPU reset. v2: rebased on new SA interface. Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-09drm/radeon: define new SA interface v3Christian König1-1/+1
Define the interface without modifying the allocation algorithm in any way. v2: rebase on top of fence new uint64 patch v3: add ring to debugfs output Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-09drm/radeon: make sa bo a stand alone objectChristian König1-2/+2
Allocating and freeing it seperately. Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-09drm/radeon: use inline functions to calc sa_bo addrChristian König1-4/+2
Instead of hacking the calculation multiple times. Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-09drm/radeon: replace the per ring mutex with a global oneChristian König1-23/+19
A single global mutex for ring submissions seems sufficient. Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-03drm/radeon: fix a bug with the ring syncing codeChristian König1-0/+56
Rings need to lock in order, otherwise the ring subsystem can deadlock. v2: fix error handling and number of locked doublewords. v3: stop creating unneeded semaphores. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-01-05drm/radeon: allocate semaphore from the ib poolJerome Glisse1-70/+87
This allow to share the ib pool with semaphore and avoid having more bo around. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/radeon: rename struct radeon_cp to radeon_ringChristian König1-2/+2
That naming seems to make more sense, since we not only want to run PM4 rings with it. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/radeon: make some asic pointers per ringChristian König1-2/+2
Emitting fences, semaphores and ib works differently on different ring, so its is easier to maintain separate functions for each ring. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/radeon: make cp variable an arrayChristian König1-2/+2
Replace cp, cp1 and cp2 members with just an array of radeon_cp structs. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/radeon: make all functions work with multiple rings.Christian König1-2/+2
Give all asic and radeon_ring_* functions a radeon_cp parameter, so they know the ring to work with. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/radeon/kms: add support for semaphores v3Christian König1-0/+161
They are used to sync between rings, while fences sync between a ring and the cpu. v2 Fix radeon_semaphore_driver_fini when no semaphore were allocated. v3 Initialize list early on to avoid issue in case or early error Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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