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path: root/drivers/gpu/drm/i915/i915_reg.h
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* Patched in Tegra support.Jonathan Herman2013-01-17
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* drm/i915: Implement WaSetupGtModeTdRowDispatchDaniel Vetter2012-12-17
| | | | | | | | | | | | I'm not really sure, since the w/a entry is as thin on details as ever, and Bspec doesn't say anything about it. But I've figured only dispatching to rows 0&1 instead of all four should be the right thing for GT1. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> [danvet: Add the missing snb server GT1 to the check, spotted by Chris Wilson.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Implement WaDisableHiZPlanesWhenMSAAEnabledDaniel Vetter2012-12-17
| | | | | | | | | Quoting from Bspec, 3D_CHICKEN1, bit 10 This bit needs to be set always to "1", Project: DevSNB " Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: set the LPT FDI RX polarity reversal bit when neededPaulo Zanoni2012-12-10
| | | | | | | | | | | | If we fail to set the bit when needed we get some nice FDI link training failures (AKA "black screen on VGA output"). While we don't really know how to properly choose whether we need to set the bit or not (VBT?), just read the initial value set by the BIOS and store it for later usage. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: add lpt_init_pch_refclkPaulo Zanoni2012-12-10
| | | | | | | | | | | | | | | | | | | We need this code to init the PCH SSC refclk and the FDI registers. The BIOS does this too and that's why VGA worked before this patch, until you tried to suspend the machine... This patch implements the "Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI/IO" from our documentation. v2: - Squash Damien Lespiau's reset spelling fix on top. - Add a comment that we don't need to bother about the ULT special case Damien noticed, since ULT won't have VGA. - Add a comment to rip out the SDV codepaths once haswell ships for real. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (v1) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: add support for mPHY destination on intel_sbi_{read, write}Paulo Zanoni2012-12-10
| | | | | | | | | | This way we should be able to write mPHY registers using the Sideband Interface in the next commit. Also fixed some syntax oddities in the related code. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: make the panel fitter work on pipes B and C on IVBPaulo Zanoni2012-11-21
| | | | | | | | | | | | I actually found this problem on Haswell, but then discovered Ivy Bridge also has it by reading the spec. I don't have the hardware to test this. Cc: stable@vger.kernel.org Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: don't intel_crt_init if DDI A has 4 lanesPaulo Zanoni2012-11-21
| | | | | | | | | | | | | | DDI A and E have 4 lanes to share, so if DDI A is using 4 lanes, there's nothing left for DDI E, which means there's no CRT port on the machine. The bit we're checking here is programmed at system boot and it cannot be changed afterwards, so we cannot change the amount of lanes reserved for each DDI port. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: make DP work on LPT-LP machinesPaulo Zanoni2012-11-21
| | | | | | | | | | | | We need to enable a special bit, otherwise none of the DP functions requiring the PCH will work. Version 2: store the PCH ID inside dev_priv, as suggested by Daniel Vetter. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Move the remaining gtt codeBen Widawsky2012-11-11
| | | | | | | | | | | It's pretty much all consolidated now that we've killed AGP. We can move the one outlier, and defines too. (Kill some unused defines in the process) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: flush system agent TLBs on SNBBen Widawsky2012-11-11
| | | | | | | | | | | | | | | | | | | | | This allows us to map the PTEs WC. I've not done thorough testing or performance measurements with this patch, but it should be decent. This is based on a patch from Jesse with the original commit message > I've only lightly tested this so far, but the corruption seems to be > gone if I write the GFX_FLSH_CNTL reg after binding an object. This > register should control the TLB for the system agent, which is what CPU > mapped objects will go through. It has been updated for the new AGP-less code by me, and included with it is feedback from the original patch. v2: Updated to reflect paranoia on pte updates/register posting reads. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by [v1]: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Calculate correct stolen size for GEN7+Ben Widawsky2012-11-11
| | | | | | | | | | | | | | This bug existed in the old code, but was easier to fix here in the rework. Unfortunately gen7 doesn't have a nice way to figure out the size and we must use a lookup table. As Jesse pointed out, there is some confusion in the docs about these definitions. We're picking the one which seems more accurate, but we really aren't certain. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Stop using AGP layer for GEN6+Ben Widawsky2012-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As a quick hack we make the old intel_gtt structure mutable so we can fool a bunch of the existing code which depends on elements in that data structure. We can/should try to remove this in a subsequent patch. This should preserve the old gtt init behavior which upon writing these patches seems incorrect. The next patch will fix these things. The one exception is VLV which doesn't have the preserved flush control write behavior. Since we want to do that for all GEN6+ stuff, we'll handle that in a later patch. Mainstream VLV support doesn't actually exist yet anyway. v2: Update the comment to remove the "voodoo" Check that the last pte written matches what we readback v3: actually kill cache_level_to_agp_type since most of the flags will disappear in an upcoming patch v4: v3 was actually not what we wanted (Daniel) Make the ggtt bind assertions better and stricter (Chris) Fix some uncaught errors at gtt init (Chris) Some other random stuff that Chris wanted v5: check for i==0 in gen6_ggtt_bind_object to shut up gcc (Ben) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by [v4]: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Make the cache_level -> agp_flags conversion for pre-gen6 a tad more robust by mapping everything != CACHE_NONE to the cached agp flag - we have a 1:1 uncached mapping, but different modes of cacheable (at least on later generations). Suggested by Chris Wilson.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: TLB invalidation with MI_FLUSH_DW requires a post-sync op v3Jesse Barnes2012-11-11
| | | | | | | | | | | | | | So store into the scratch space of the HWS to make sure the invalidate occurs. v2: use GTT address space for store, clean up #defines (Chris) v3: use correct #define in blt ring flush (Chris) Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Antti Koskipää <antti.koskipaa@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> References: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1063252 Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: implement WaDisablePSDDualDispatchEnable on IVB & VLVJesse Barnes2012-11-11
| | | | | | | | | | | | | | Workaround for dual port PS dispatch on GT1. v2: pull in register definition & offset handling v3: use IVB GT1 macro to get the right regs (Ben) v4: add for VLV too (Ben) v5: don't read the reg, it's masked so we'll only enable the one extra bit (Chris) v6: use a _GT2 suffix for the second reg (Chris) Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Antti Koskipää <antti.koskipaa@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: implement WaDisableVLVClockGating_VBIIssue on VLVJesse Barnes2012-11-11
| | | | | | | | | | This allows us to get the right vblank interrupt frequency. v2: pull in register definition Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Antti Koskipää <antti.koskipaa@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: implement WaDisableDopClockGatingisable on VLV and IVBJesse Barnes2012-11-11
| | | | | | | | | | | | v2: use correct register v3: remove extra hunks, pull in register definitions & offset check directly v4: add GT1 vs GT2 distinction for IVB portion (Ben) References: https://bugs.freedesktop.org/show_bug.cgi?id=50233 Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Antti Koskipää <antti.koskipaa@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: implement WaDisableL3CacheAging on VLVJesse Barnes2012-11-11
| | | | | | | | | | | Needs to be set on every context restore as well, so set it as part of the initial state so we can save/restore it. Note this removes the IVB workaround value from VLV and uses the default value, just adding in the L3 cache aging disable bit, since the IVB value is wrong for VLV. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Antti Koskipää <antti.koskipaa@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: fix Haswell FDI link training codePaulo Zanoni2012-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit makes hsw_fdi_link_train responsible for implementing everything described in the "Enable and train FDI" section from the Hawell CRT mode set sequence documentation. We completely rewrite hsw_fdi_link_train to match the documentation and we also call it in the right place. This patch was initially sent as a series of tiny patches fixing every little problem of the function, but since there were too many patches fixing the same function it got a little difficult to get the "big picture" of how the function would be in the end, so here we amended all the patches into a single big patch fixing the whole function. Problems we fixed: 1 - Train Haswell FDI at the right time. We need to train the FDI before enabling the pipes and planes, so we're moving the call from lpt_pch_enable to haswell_crtc_enable directly. We are also removing ironlake_fdi_pll_enable since the PLL enablement on Haswell is completely different and is also done during the link training steps. 2 - Use the right FDI_RX_CTL register on Haswell There is only one PCH transcoder, so it's always _FDI_RXA_CTL. Using "pipe" here is wrong. 3 - Don't rely on DDI_BUF_CTL previous values Just set the bits we want, everything else is zero. Also POSTING_READ the register before sleeping. 4 - Program the FDI RX TUSIZE register on hsw_fdi_link_train According to the mode set sequence documentation, this is the right place. According to the FDI_RX_TUSIZE register description, this is the value we should set. Also remove the code that sets this register from the old location: lpt_pch_enable. 5 - Properly program FDI_RX_MISC pwrdn lane values on HSW 6 - Wait only 35us for the FDI link training First we wait 30us for the FDI receiver lane calibration, then we wait 5us for the FDI auto training time. 7 - Remove an useless indentation level on hsw_fdi_link_train We already "break" when the link training succeeds. 8 - Disable FDI_RX_ENABLE, not FDI_RX_PLL_ENABLE When we fail the training. 9 - Change Haswell FDI link training error messages We shouldn't call DRM_ERROR when still looping through voltage levels since this is expected and not really a failure. So in this commit we adjust the error path to only DRM_ERROR when we really fail after trying everything. While at it, replace DRM_DEBUG_DRIVER with DRM_DEBUG_KMS since it's what we use everywhere. 10 - Try each voltage twice at hsw_fdi_link_train Now with Daniel Vetter's suggestion to use "/2" instead of ">>1". Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> [danvet: Applied tiny bikesheds: - mention in comment that we test each voltage/emphasis level twice - realing arguments of the only untouched reg write, it spilled over the 80 char limit ...] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: implement WADP0ClockGatingDisableDaniel Vetter2012-11-11
| | | | | | | | | | Found in Bspec vol4h South Display Engine Registers [CPT, PPT], section "5.3.1 TRANS_CHICKEN_1—Transcoder Chicken Bits 1" v2: Make it compile. Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: CPT+ pch transcoder workaroundDaniel Vetter2012-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to set the timing override chicken bit after fdi link training has completed and before we enable the transcoder. We also have to clear that bit again after disabling the pch transcoder. See "Graphics BSpec: vol4g North Display Engine Registers [IVB], Display Mode Set Sequence" and "Graphics BSpec: vol4h South Display Engine Registers [CPT, PPT], South Display Engine Transcoder and FDI Control, Transcoder Debug and DFT, TRANS_CHICKEN_2" bit 31: "Workaround : Enable the override prior to enabling the transcoder. Disable the override after disabling the transcoder." While at it, use the _PIPE macro for the other TRANS_DP register. v2: Keep the w/a as-is, but kill the original (but wrongly placed) workaround introduced in commit 3bcf603f6d5d18bd9d076dc280de71f48add4101 Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Wed Jul 27 11:51:40 2011 -0700 drm/i915: apply timing generator bug workaround on CPT and PPT and commit d4270e57efe9e2536798c59e1ed2fd0a1e5cdfcf Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Tue Oct 11 10:43:02 2011 -0700 drm/i915: export a CPT mode set verification function Note that this old code has unconditionally set the w/a, which might explain why fdi link training sometimes silently fails, and especially why the auto-train did not seem to work properly. v3: Paulo Zanoni pointed out that this workaround is also required on the LPT PCH. And Arthur Ranyan confirmed that this workaround is requierd for all ports on the pch, not just DP: The important part is that the bit is set whenever the pch transcoder is enabled, and that it is _not_ set while the fdi link is trained. It is also important that the pch transcoder is fully disabled, i.e. we have to wait for bit 30 to clear before clearing the w/a bit. Hence move to workaround into enable/disable_transcoder, where the pch transcoder gets enabled/disabled. v4: Whitespace changes dropped. v5: Don't run the w/a on IBX, we only need it on CPT/PPT and LPT. v6: - resolve conflicts with Paulo's big hsw vga rework - s/!IBX/CPT since hsw paths are now all separate, and Paulo's patch to implement the equivalent w/a for LPT is already merged. Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Paulo Zanoni <przanoni@gmail.com> Cc: Arthur Ranyan <arthur.j.runyan@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (v5) Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v5) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Add SURFLIVE register definitionsVille Syrjälä2012-11-11
| | | | | Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Fix display pixel format handlingVille Syrjälä2012-11-11
| | | | | | | | | | | | | | | | | Fix support for all RGB/BGR pixel formats (except the 16:16:16:16 float format). Fix intel_init_framebuffer() to match hardware and driver limitations: * RGB332 is not supported at all * CI8 is supported * XRGB1555 & co. are supported on Gen3 and earlier * XRGB210101010 & co. are supported from Gen4 onwards * BGR formats are supported from Gen4 onwards * YUV formats are supported from Gen5 onwards (driver limitation) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: implement WaDisableRenderCachePipelinedFlushDaniel Vetter2012-11-11
| | | | | | | | Comment says for eaglelake/cantiga, but it's listed in the ilk table, too. So apply it to both. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Fix sprite offset on HSWDamien Lespiau2012-11-11
| | | | | | | | | | | HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET register. v2: Remove a useless level of indentation (Paulo Zanoni) Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (v1) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: Fix primary plane offset on HSWDamien Lespiau2012-11-11
| | | | | | | | | Haswell consolidates DSP_TILEOFF and DSP_LINOFF into DSP_OFFSET (aka PRI_OFFSET). 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>
* drm/i915: check fdi B/C lane sharing constraintDaniel Vetter2012-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And properly toggle the chicken bit in the pch to enable/disable fdi C rx. If we don't set this bit correctly, the rx gets confused in link training, which can result in an fdi link that silently fails to train the link (since the corresponding register reports success). Note that both fdi link B and C can suffer when this bit is not set correctly. The code as-is has a few deficiencies: - We presume all pipes use the pch which is not the case for cpu edp. - We don't bother with disabling both pipes when we could make things work, e.g. when pipe B switched from 4 to 2 lanes due to a mode change, we don't bother updating the w/a bit. - It's ugly. All of these are because we compute ->fdi_lanes way too late, when we're already setting up individual pipes. We need to have this information in ->modeset_global_resources already, to set things up correctly. But that is a much larger reorg of the code. Note that we actually hit the 2 lanes limit in practice rather quickly: Even though the 1920x1200 mode native mode of my screen fits into 2 lanes, it needs 3 lanes for the 1920x1080 (since that somehow has much more blanking ...). Not obeying this restriction seems to results in cute-looking digital noise. v2: Only ever clear the chicken bit when both pipes are off. v3: Use the new ->modeset_global_resources callback. v4: Move the WARNs to the right place. Oh how I hate hacks. v5: Fix spelling, noticed by Paulo Zanoni. Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: convert pipe timing definitions to transcoderPaulo Zanoni2012-10-26
| | | | | | Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: convert CPU M/N timings to transcoderPaulo Zanoni2012-10-26
| | | | | | | | | Same thing as the previous commits. Not renaming this one since it exists since way before Haswell. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: convert PIPE_MSA_MISC to transcoderPaulo Zanoni2012-10-26
| | | | | | | | | Same as the other registers. This one also appeared on Haswell for the first time, so that's why we are renaming it. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: convert PIPECONF to use transcoder instead of pipePaulo Zanoni2012-10-26
| | | | | | | | | | | | | Because the PIPECONF register is actually part of the CPU transcoder, not the CPU pipe. Ideally we would also rename PIPECONF to TRANSCONF to remind people that they should use the transcoder instead of the pipe, but let's keep it like this for now since most Gens still name it PIPECONF. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: convert DDI_FUNC_CTL to transcoderPaulo Zanoni2012-10-26
| | | | | | | | | | | | | | | | | | Because there's one instance of the register per CPU transcoder and not per CPU pipe. This is another register that appeared for the first time on Haswell, and even though its Haswell name is PIPE_DDI_FUNC_CTL, it will be renamed to TRANS_DDI_FUNC_CTL, so let's just use the new naming scheme before it confuses more people. Notice that there's a big improvement on intel_ddi_get_hw_state due to the new TRANSCODER_EDP. V2: Also rename the register to TRANS_DDI_FUNC_CTL as suggested by Damien Lespiau. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: convert PIPE_CLK_SEL to transcoderPaulo Zanoni2012-10-26
| | | | | | | | | | | | | | | | This register appeared in Haswell. It does not have an EDP version because the EDP transcoder is always tied to the DDIA clock. Notice that if we call PIPE_CLK_SEL(pipe) when pipe is PIPE_A and transcoder is TRANSCODER_EDP we might introduce a bug, that's why this is a transcoder register even though it does not have an EDP version. Even though Haswell names this register PIPE_CLK_SEL, it will be renamed to TRANS_CLK_SEL in the future, so let's just start using the real name that makes more sense and avoids misusage. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: add TRANSCODER_EDPPaulo Zanoni2012-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before Haswell we used to have the CPU pipes and the PCH transcoders. We had the same amount of pipes and transcoders, and there was a 1:1 mapping between them. After Haswell what we used to call CPU pipe was split into CPU pipe and CPU transcoder. So now we have 3 CPU pipes (A, B and C), 4 CPU transcoders (A, B, C and EDP) and 1 PCH transcoder (only used for VGA). For all the outputs except for EDP we have an 1:1 mapping on the CPU pipes and CPU transcoders, so if you're using CPU pipe A you have to use CPU transcoder A. When have an eDP output you have to use transcoder EDP and you can attach this CPU transcoder to any of the 3 CPU pipes. When using VGA you need to select a pair of matching CPU pipes/transcoders (A/A, B/B, C/C) and you also need to enable/use the PCH transcoder. For now we're just creating the cpu_transcoder definitions and setting cpu_transcoder to TRANSCODER_EDP on DDI eDP code, but none of the registers was ported to use transcoder instead of pipe. The goal is to keep the code backwards-compatible since on all cases except when using eDP we must have pipe == cpu_transcoder. V2: Comment the haswell_crtc_off chunk, suggested by Damien Lespiau and Daniel Vetter. We currently need the haswell_crtc_off chunk because TRANSCODER_EDP can be used by any CRTC, so when you stop using it you have to stop saying you're using it, otherwise you may have at some point 2 CRTCs claiming they're using TRANSCODER_EDP (a disabled CRTC and an enabled one), then the HW state readout code will get completely confused. In other words: Imagine the following case: xrandr --output eDP1 --auto --crtc 0 xrandr --output eDP1 --off xrandr --output eDP1 --auto --crtc 2 After the last command you could get a "pipe A assertion failure (expected off, current on)" because CRTC 0 still claims it's using TRANSCODER_EDP, so the HW state readout function will read it (through PIPECONF) and expect it to be off, when it's actually on because it's being used by CRTC 2. So when we make "intel_crtc->cpu_transcoder = intel_crtc->pipe" we make sure we're pointing to our own original CRTC which is certainly not used by any other CRTC. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm/i915: make edp panel power sequence setup more robustDaniel Vetter2012-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 changes: - If a given value is unset, use the maximal limits from the eDP spec. - Write back the new values, since otherwise the panel power sequencing hw will not dtrt. - Revert the early bail-out in case the register values are unset. The last change reverts commit bfa3384a9a84aaaa59443bbd776c142e7dba4b0f Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Tue Apr 10 11:58:04 2012 -0700 drm/i915: check PPS regs for sanity when using eDP v2: - Unlock the PP regs as the very first thing. This is a required w/a for cpu eDP on port A, and generally a good idea. - Fixup the panel power control port selection bits. v3: Paulo Zanoni noticed that I've fumbled the computation of the spec limit values. Fix them up. We've also noticed that the t8/t9 values in the vbt/bios-programmed pp are much larger than any limits. My guess is that this is to conceal any backlight enable/disable delays. So by using the much shorter limits from the spec, which only concerns the sink, we risk that we might display before the backlight is fully on, or disable the output while the backlight still has afterglow. I've figured I don't care too much, since this will only happen when both the pp regs are not programmed, and the vbt tables don't contain anything useful. v4: Don't set the port selection bits on hsw/LPT, they don't exist any more. v5: Fixup spelling issues in comments, as noticed by Jesse Barnes. Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* Merge tag 'v3.7-rc2' into drm-intel-next-queuedDaniel Vetter2012-10-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 3.7-rc2 Backmerge to solve two ugly conflicts: - uapi. We've already added new ioctl definitions for -next. Do I need to say more? - wc support gtt ptes. We've had to revert this for snb+ for 3.7 and also fix a few other things in the code. Now we know how to make it work on snb+, but to avoid losing the other fixes do the backmerge first before re-enabling wc gtt ptes on snb+. And a few other minor things, among them git getting confused in intel_dp.c and seemingly causing a conflict out of nothing ... Conflicts: drivers/gpu/drm/i915/i915_reg.h drivers/gpu/drm/i915/intel_display.c drivers/gpu/drm/i915/intel_dp.c drivers/gpu/drm/i915/intel_modes.c include/drm/i915_drm.h Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Set guardband clipping workaround bit in the right register.Kenneth Graunke2012-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A previous patch, namely: commit bf97b276ca04cee9ab65ffd378fa8e6aedd71ff6 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Apr 11 20:42:41 2012 +0200 drm/i915: implement w/a for incorrect guarband clipping accidentally set bit 5 in 3D_CHICKEN, which has nothing to do with clipping. This patch changes it to be set in 3D_CHICKEN3, where it belongs. The game "Dante" demonstrates random clipping issues when guardband clipping is enabled and bit 5 of 3D_CHICKEN3 isn't set. So the workaround is actually necessary. Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Oliver McFadden <oliver.mcfadden@linux.intel.com> Acked-by: Paul Menzel <paulepanter@users.sourceforge.net> Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Fix GT_MODE default valueBen Widawsky2012-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | I can't even find how I figured this might be needed anymore. But sure enough, the value I'm reading back on platforms doesn't match what the docs recommends. It seemed to fix Chris' GT1 in limited testing as well. Tested-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: make sure we write all the DIP data bytesPaulo Zanoni2012-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ... even if the actual infoframe is smaller than the maximum possible size. If we don't write all the 32 DIP data bytes the InfoFrame ECC may not be correctly calculated in some cases (e.g., when changing the port), and this will lead to black screens on HDMI monitors. The ECC value is generated by the hardware. I don't see how this should break anything since we're writing 0 and that should be the correct value, so this patch should be safe. Notice that on IVB and older we actually have 64 bytes available for VIDEO_DIP_DATA, but only bytes 0-31 actually store infoframe data: the others are either read-only ECC values or marked as "reserved". On HSW we only have 32 bytes, and the ECC value is stored on its own separate read-only register. See BSpec. This patch fixes bug #46761, which is marked as a regression introduced by commit 4e89ee174bb2da341bf90a84321c7008a3c9210d: drm/i915: set the DIP port on ibx_write_infoframe Before commit 4e89 we were just failing to send AVI infoframes when we needed to change the port, which can lead to black screens in some cases. After commit 4e89 we started sending infoframes, but with a possibly wrong ECC value. After this patch I hope we start sending correct infoframes. Version 2: - Improve commit message - Try to make the code more clear Cc: stable@vger.kernel.org Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=46761 Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: Consolidate ILK_DSPCLK_GATE and PCH_DSPCLK_GATEDamien Lespiau2012-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register 0x42020 was defined twice under the names PCH_DSPCLK_GATE_D and ILK_DSPCLK_GATE. This patch consolidate the 2 sets of defines in one. The transforms done are: PCH_DSPCLK_GATE_D -> ILK_DSPCLK_GATE_D ILK_DSPCLK_GATE -> ILK_DSPCLK_GATE_D DPARBUNIT_CLOCK_GATE_DISABLE -> ILK_DPARBUNIT_CLOCK_GATE_DISABLE ILK_DPARB_CLK_GATE -> ILK_DPARBUNIT_CLOCK_GATE_DISABLE DPFDUNIT_CLOCK_GATE_DISABLE -> ILK_DPFDUNIT_CLOCK_GATE_DISABLE ILK_DPFD_CLK_GATE -> ILK_DPFDUNIT_CLOCK_GATE_DISABLE ILK_CLK_FBC -> ILK_DPFDUNIT_CLOCK_GATE_DISABLE DPFCRUNIT_CLOCK_GATE_DISABLE -> ILK_DPFCRUNIT_CLOCK_GATE_DISABLE ILK_DPFC_DIS1 -> ILK_DPFCRUNIT_CLOCK_GATE_DISABLE DPFCUNIT_CLOCK_GATE_DISABLE -> ILK_DPFCUNIT_CLOCK_GATE_DISABLE ILK_DPFC_DIS2 -> ILK_DPFCUNIT_CLOCK_GATE_DISABLE We have a VHRUNIT_CLOCK_GATE_DISABLE define for the pre-ILK DSPCLK_GATE_D. Even if the same bit is used in ILK_DSPCLK_GATE_D, other bits in the register change, so I went with re-defining it, well more precisely rename IVB_VRHUNIT_CLK_GATE, which is not specific to IVB+. So: IVB_VRHUNIT_CLK_GATE -> ILK_VHRUNIT_CLOCK_GATE_DISABLE VHRUNIT_CLOCK_GATE_DISABLE -> ILK_VHRUNIT_CLOCK_GATE_DISABLE (ILK+ code) This commit is only a renaming commit, further commits will clean up the logic. v2: Rename bit 5 and 7 to _ENABLE as setting them to 1 enables clock gating on their respective units, contrary to all of the other bits (Paulo Zanoni) 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>
* | drm/i915: add basic Haswell DP link train bitsPaulo Zanoni2012-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, the DP register was used for everything. On Haswell, it was split into DDI_BUF_CTL (which is the new intel_dp->DP register) and DP_TP_CTL. The logic behind this patch is based on a patch written by Shobhit Kumar, but the way the code was written is very different. Credits-to: Shobhit Kumar <shobhit.kumar@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> [danvet: Fixup the logic error spotted by Jani Nikula.] Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: add intel_ddi_set_pipe_settingsPaulo Zanoni2012-10-17
| | | | | | | | | | | | | | | | | | | | | | | | In theory, all the DDI pipe settings should be set here, including timing and M/N registers. For now, let's just set the DP MSA attributes. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> [danvet: fixed up the unused typo in a #define, spotted by Jani Nikula.] Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: Document the multi-threaded FORCEWAKE bitsChris Wilson2012-10-17
| | | | | | | | | | | | | | | | No functional change, but reserves 0x2 for use by userspace. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: Allow DRM_ROOT_ONLY|DRM_MASTER to submit privileged batchbuffersChris Wilson2012-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the introduction of per-process GTT space, the hardware designers thought it wise to also limit the ability to write to MMIO space to only a "secure" batch buffer. The ability to rewrite registers is the only way to program the hardware to perform certain operations like scanline waits (required for tear-free windowed updates). So we either have a choice of adding an interface to perform those synchronized updates inside the kernel, or we permit certain processes the ability to write to the "safe" registers from within its command stream. This patch exposes the ability to submit a SECURE batch buffer to DRM_ROOT_ONLY|DRM_MASTER processes. v2: Haswell split up bit8 into a ppgtt bit (still bit8) and a security bit (bit 13, accidentally not set). Also add a comment explaining why secure batches need a global gtt binding. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v1) [danvet: added hsw fixup.] Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: Workaround to bump rc6 voltage to 450Ben Widawsky2012-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BIOS should be setting the minimum voltage for rc6 to be 450mV. Old or buggy BIOSen may not be doing this, so we correct it for them. Ideally customers should update the BIOS as only it would know the optimal values for the platform, so we leave that fact as a DRM_ERROR for the user to see. Unfortunately this isn't fixing any of the issues it was targeted to fix, but it is documented that we must do it. CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Matt Turner <mattst88@gmail.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> [danvet: bikeshedded loglevel of the "your bios is broken message" to debug.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: Fix the SCC/SSC typo in the SPLL bits definitionDamien Lespiau2012-10-11
| | | | | | | | | | | | | | We're talking about Spread Spectrum Clocks here, thus SSC. Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: completely rewrite the Haswell PLL handling codePaulo Zanoni2012-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problems with the previous code: - HDMI just uses WRPLL1 for everything, so dual head cases might not work sometimes. - At encoder->mode_set we just write the PLL register without doing any kind of check (e.g., check if the PLL is already being used). - There is no way to fail and return error codes at encoder->mode_set. - We write to PORT_CLK_SEL at mode_set and we never disable it. - Machines hang due to wrong clock enable/disable sequence. So here we rewrite the code, making it a little more like the pre-Haswell PLL mode set code: - Check PLL availability at ironlake_crtc_mode_set. - Try to use both WRPLLs. - Check if PLLs are used before actually trying to use them, and properly fail with error messages. - Enable/disable PORT_CLK_SEL at the right place. - Add some WARNs to check for bugs. The next improvement will be to try to reuse PLLs if the timings match, but this is content for another patch and it's already documented with a TODO comment. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: add haswell_set_pipeconfPaulo Zanoni2012-10-10
| | | | | | | | | | | | | | | | | | | | It's a copy of ironlake_set_pipeconf with 2 differences: - There is no BPC field to set. - The interlaced mask is now 2 bits instead of 3. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: enable and disable DDI_FUNC_CTL at the right timePaulo Zanoni2012-10-10
| | | | | | | | | | | | | | | | | | | | | | | | And the right time is exactly after/before changing PIPE_CONF. See the documentation about the mode set sequence. This code is not inside any encoder-specific callback because DDI_FUNC_CTL is part of the pipe, so it is used by all encoders. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm/i915: rewrite the LCPLL codePaulo Zanoni2012-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now, we're trying to enable LCPLL at every mode set, but we're never disabling it. Also, we really don't want to be disabling LCPLL since it requires a very complex disable/enable sequence. This register should really be set by the BIOS and we shouldn't be touching it. Still, let's try to check its value and print some errors in case we find something wrong. We're also adding intel_ddi_get_cdclk_freq which will be used later in other places. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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