- 26 Jun, 2015 19 commits
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Damien Lespiau authored
Currently, if an odd divider improves the deviation (minimizes it), we take that divider. The recommendation is to prefer even dividers. v2: Move the check at the right place after having inverted the two for loops in the previous patch. Signed-off-by:Damien Lespiau <damien.lespiau@intel.com> Reviewed-by:
Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Damien Lespiau authored
The HW validation team came back from further testing with a slightly changed constraint on the deviation between the DCO frequency and the central frequency. Instead of +-4%, it's now +1%/-6%. Unfortunately, the previous algorithm didn't quite cope with these new constraints, the reason being that it wasn't thorough enough looking at the possible divider candidates. The new algorithm looks at all dividers, which is definitely a hammer approach (we could reduce further the set of dividers to good ones as a follow up, at the cost of a bit more complicated code). But, at least, we can now satisfy the +1%/+6% rule for all the "Well known" HDMI frequencies of my test set (373 entries). On that subject, the new code is quite extensively tested in intel-gpu-tools (tools/skl_compute_wrpll). v2: Fix cycling between central frequencies and dividers (Paulo) Properly choose the minimal deviation between postive and negative candidates (Paulo). On the 373 test frequencies, v2 computes better dividers than v1 (ie more even dividers and lower deviation on average): v1: average deviation: 206.52 v2: average deviation: 194.47 Signed-off-by: -
Michel Thierry authored
After Mika's ppgtt cleanup series, all the other free functions have drm_device as the first parameter, except this one. No functional changes. Signed-off-by:
Michel Thierry <michel.thierry@intel.com> Reviewed-by:
Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by:
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Michel Thierry authored
A safer way to update the PDPx registers is sending lri commands, added in the ring before the batchbuffer start. Otherwise, the ctx must be idle before trying to change anything (but the ring-tail) in the ctx image. An example where the ctx won't be idle is lite-restore. This patch depends on 5b7e4c9c ("drm/i915/gtt: Mark TLBS dirty for gen8+"). v2: Combine lri writes (and save 8 commands). (Mika) v3: Rebase after ring/req changes, and removed references to deprecated patches. Cc: Dave Gordon <david.s.gordon@intel.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by:
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Mika Kuoppala authored
There is no need for atomicity here. Convert all bitmap operations to nonatomic variants. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Mika Kuoppala authored
Scratch page is part of struct i915_address_space. Move other scratch entities into the same struct. This is a preparatory patch for having only one instance of each scratch_pt/pd. v2: make commit msg more readable Signed-off-by:
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Mika Kuoppala authored
Write page directory entry without using superfluous indirect function. Also remove unused device parameter from the encode function. Signed-off-by:
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Mika Kuoppala authored
Dynamic page table allocation might wake the shrinker when memory is requested for page table structures. As this happens when we try to allocate the virtual address during binding, our vma might be among the targets for eviction. We should do i915_vma_pin() and do pin early in there like Chris suggests but this is interim solution. Shield our vma from shrinker by incrementing pin count before the virtual address is allocated. The proper place to fix this would be in gem, inside of i915_vma_pin(). But we don't have that yet so take the short cut as a intermediate solution. Testcase: igt/gem_ctx_thrash Signed-off-by:
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Mika Kuoppala authored
Lay out scratch page structure in similar manner than other paging structures. This allows us to use the same tools for setup and teardown. Signed-off-by:
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Mika Kuoppala authored
Make paging structure type agnostic *_px macros to access page dma struct, the backing page and the dma address. This makes the code less cluttered on internals of i915_page_dma. v2: Superfluous const -> nonconst removed v3: Rebased Signed-off-by:
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Mika Kuoppala authored
As there is flushing involved when we have done the cpu write, make functions for mapping for cpu space. Make macros to map any type of paging structure. v2: Make it clear tha flushing kunmap is only for ppgtt (Ville) v3: Flushing fixed (Ville, Michel). Removed superfluous semicolon Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Mika Kuoppala authored
When we setup page directories and tables, we point the entries to a to the next level scratch structure. Make this generic by introducing a fill_page_dma which maps and flushes. We also need 32 bit variant for legacy gens. v2: Fix flushes and handle valleyview (Ville) v3: Now really fix flushes (Michel, Ville) Reviewed-by:
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Mika Kuoppala authored
This has slipped in somewhere but it was harmless as we check the page pointer before teardown. Signed-off-by:
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Mika Kuoppala authored
All the paging structures are now similar and mapped for dma. The unmapping is taken care of by common accessors, so don't overload the reader with such details. v2: Be consistent with goto labels (Michel) Signed-off-by:
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Mika Kuoppala authored
All our paging structures have struct page and dma address for that page. Add struct for page/dma address pairs and use it to make the setup and teardown for different paging structures identical. Include the page directory offset also in the struct for legacy gens. Rename it to clearly point out that it is offset into the ggtt. v2: Add comment about ggtt_offset (Michel) Signed-off-by:
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Mika Kuoppala authored
The legacy mode mm switch and the execlist context assignment needs dma address for the page directories. Introduce a function that encapsulates the scratch_pd dma fallback if no pd is found. v2: Rebase, s/ring/req Signed-off-by:
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Mika Kuoppala authored
We can have exactly 4GB sized ppgtt with 32bit system. size_t is inadequate for this. v2: Convert a lot more places (Daniel) Signed-off-by:
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Mika Kuoppala authored
Check the allocation area against the known end of address space instead of against fixed value. v2: Return ENODEV on internal bugs (Chris) Signed-off-by:
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Mika Kuoppala authored
When we touch gen8+ page maps, mark them dirty like we do with previous gens. v2: Update comment (Joonas) Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by:
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- 25 Jun, 2015 2 commits
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Ville Syrjälä authored
Currently we don't have any real indication when a pipe gets enabled/disabled. Add some. Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Ville Syrjälä authored
Avoid some 'switch (plane->type)' by storing the fronbuffer_bits in intel_plane. Signed-off-by:
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- 24 Jun, 2015 5 commits
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Bob Paauwe authored
The registers and process differ from other platforms. If the hardware was programmed incorrectly, this will return invalid cdclk values, which should then cause reprogramming of the hardware. v2(Matt): Return 19.2 MHz when DE PLL is disabled (Ville) v3: Make less assumptions about the hardware state (Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
Bob Paauwe <bob.j.paauwe@intel.com> Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Reviewed-by:
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Tvrtko Ursulin authored
Currently object size is returned for the rotated VMA size which can be bigger than the rotated view itself. Since the binding code pads all excess size with scratch pages the only minor issue with this is wasting some GGTT space, but still feels nicer to fix and report the real size. v2: Rebase for tracking size in bytes instead of pages. Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by:
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Tvrtko Ursulin authored
This way data is available as soon as the view is passed into the call chain. v2: Store size in bytes instead of pages under the appropriate name. (Chris Wilson) v3: Use uint64_t instead of size_t. (Daniel Vetter) Signed-off-by:
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Tvrtko Ursulin authored
It is only used in logging and it doesn't need to exist on its own. Also it was misleading to log view size as object size. v2: Improve commit message. (Joonas Lahtinen) Signed-off-by:
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Daniel Vetter authored
With the new DRRS code it kinda sticks out, and we never managed to get this to work well enough without causing issues. Time to wave goodbye. I've decided to keep the logic for programming the reduced clocks intact, but everything else is gone. If anyone ever wants to resurrect this we need to redo it all anyway on top of the frontbuffer tracking. Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Acked-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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- 23 Jun, 2015 14 commits
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Imre Deak authored
This typo lead to the crtc scaler getting enabled incorrectly and an evantual state checker mismatch about the scaler_id. Signed-off-by:
Imre Deak <imre.deak@intel.com> Reviewed-by:
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Arun Siluvery authored
In Indirect context w/a batch buffer, WaClearSlmSpaceAtContextSwitch This WA performs writes to scratch page so it must be valid, this check is performed before initializing the batch with this WA. v2: s/PIPE_CONTROL_FLUSH_RO_CACHES/PIPE_CONTROL_FLUSH_L3 (Ville) v3: GTT bit in scratch address should be mbz (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Gordon <david.s.gordon@intel.com> Signed-off-by:
Rafael Barbalho <rafael.barbalho@intel.com> Signed-off-by:
Arun Siluvery <arun.siluvery@linux.intel.com> Acked-by:
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Daniel Vetter authored
Must have missed the transition. Reviewed-by:
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Daniel Vetter authored
The frontbuffer code gives us accurate information about activity, let's use it. Again this should avoid unecessary updates when multiple screens are on. Also realign function paramaters, I couldn't resist that bit of OCD. Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Durgadoss R <durgadoss.r@intel.com> Reviewed-by:
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Daniel Vetter authored
The current code tracks business across all pipes, but we're only really interested in the one pipe DRRS is enabled on. Fairly tiny optimization, but something I noticed while reading the code. But it might matter a bit when e.g. showing a video or something only on the external screen, while the panel is kept static. Also regroup the code slightly: First compute new bitmasks, then take appropriate actions. Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Durgadoss R <durgadoss.r@intel.com> Reviewed-by:
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Daniel Vetter authored
The current code tracks business across all pipes, but we're only really interested in the one pipe DRRS is enabled on. Fairly tiny optimization, but something I noticed while reading the code. But it might matter a bit when e.g. showing a video or something only on the external screen, while the panel is kept static. Also regroup the code slightly: First compute new bitmasks, then take appropriate actions. Cc: Ramalingam C <ramalingam.c@intel.com> Cc: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com> Reviewed-by:
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Daniel Vetter authored
I was momentarily confused until I've double-checked that these functions really only compute state and don't update the hardware state. They once did that, but since Ander's rework of the dpll computation flow that's no longer the case. Rename them to avoid further confusion. Note that the ilk code already follows the compute_dpll naming scheme for computing the actual register value. DDI code goes with _calc_, but that is close enough. Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by:
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Daniel Vetter authored
Useful to figure out whether stuck bits are due to the frontbuffer tracking code as opposed to individual consumers (who have their own bitmask tracking). Reviewed-by:
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Daniel Vetter authored
Paulo noticed that the fbc frontbuffer tracking flush callback occasionally gets a call without any bit set. This can happen when we have to filter flush calls due to e.g. gpu rendering. Filter these out. Reported-by:
Paulo Zanoni <przanoni@gmail.com> Cc: Paulo Zanoni <przanoni@gmail.com> Reviewed-by:
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Daniel Vetter authored
The current/old frontbuffer might still have gpu frontbuffer rendering pending. But once flipped it won't have the corresponding frontbuffer bits any more and hence the request retire function won't ever clear the corresponding busy bits. The async flip tracking (with the flip_prepare and flip_complete functions) already does this, but somehow I've forgotten to do this for synchronous flips. Note that we don't track outstanding rendering of the new framebuffer with busy_bits since all our plane update code waits for previous rendering to complete before displaying a new buffer. Hence a new buffer will never be busy. v2: Drop the spurious inline Ville spotted. v3: Don't touch flip_bits in the synchronsou frontbuffer_flip function, noticed by Paulo. v4: Remove one more inline that slipped through (Paulo). Reported-by:
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Arun Siluvery authored
To initialize WA batch, at the moment we first allocate batch and then check whether we have any WA to be initialized for the given Gen; if we don't have any WA then we WARN the user, destroy the batch and return but this is causing another WARN in cleanup code complaining about sleeping in atomic context. Till we understand this better and to keep things simpler, bail out early if we don't have WA. Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Arun Siluvery authored
Kernel 0-day framework reported warnings with WA batch patches, this patch fixes those warnings and an additional warning reported in intel_lrc.c file. Signed-off-by:
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John Harrison authored
As there is no OLR to check, the check_olr() function is now a no-op and can be removed. For: VIZ-5115 Signed-off-by:
John Harrison <John.C.Harrison@Intel.com> Reviewed-by:
Tomas Elf <tomas.elf@intel.com> Signed-off-by:
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John Harrison authored
A bunch of the low level LRC functions were passing around ringbuf and ctx pairs. In a few cases, they took the r/c pair and a request as well. This is all quite messy and unnecesary. The context_queue() call is especially bad since the fake request code got removed - it takes a request and three extra things that must be extracted from the request and then it checks them against what it finds in the request. Removing all the derivable data makes the code much simpler all round. This patch updates those functions to just take the request structure. Note that logical_ring_wait_for_space now takes a request structure but already had a local request pointer that it uses to scan for something to wait on. To avoid confusion the local variable has been renamed 'target' (it is searching for a target request to do something with) and the parameter has been called req (to guarantee anything accidentally missed gets a compiler error). v2: Updated commit message re wait_for_space (Tomas Elf review comment). For: VIZ-5115 Signed-off-by:
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