- 21 Oct, 2011 11 commits
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Adam Jackson authored
The previous code was confused about units, which is pretty reasonable given that the units themselves are confusing. Signed-off-by:
Adam Jackson <ajax@redhat.com> Signed-off-by:
Keith Packard <keithp@keithp.com>
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Takashi Iwai authored
The commit 47356eb6 introduced a mechanism to record the backlight level only at disabling time, but it also introduced a regression. Since intel_lvds_enable() may be called without disabling (e.g. intel_lvds_commit() calls it unconditionally), the backlight gets back to the last recorded value. For example, this happens when you dim the backlight, close the lid and open the lid, then the backlight suddenly goes to the brightest. This patch fixes the bug by recording the backlight level always when changed via intel_panel_set_backlight(). And, intel_panel_{enable|disable}_backlight() call the internal function not to update the recorded level wrongly. Cc: <stable@kernel.org> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Reviewed-by:
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Andi Kleen authored
With the tracing code in there they are far too big to inline. .text savings compared to a non force inline kernel: i915_restore_display 4393 12036 +7643 i915_save_display 4295 11459 +7164 i915_handle_error 2979 6666 +3687 i915_driver_irq_handler 2923 5086 +2163 i915_ringbuffer_info 458 1661 +1203 i915_save_vga - 1200 +1200 i915_driver_irq_uninstall 453 1624 +1171 i915_driver_irq_postinstall 913 2078 +1165 ironlake_enable_drps 719 1872 +1153 i915_restore_vga - 1142 +1142 intel_display_capture_error_state 784 2030 +1246 intel_init_emon 719 2016 +1297 and more ... [AK: these are older numbers, with the new SNB forcewake checks it will be even worse] Signed-off-by:
Andi Kleen <ak@linux.intel.com> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by:
Ben Widawsky <ben@bwidawsk.net> Signed-off-by:
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Jesse Barnes authored
Belongs in PCH enable instead. The duplication is worrying and the specs explicitly list transcoder select *after* actual PLL enable, which doesn't occur until later. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Tested-By:
Eugeni Dodonov <eugeni.dodonov@intel.com> Reviewed-By:
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Jesse Barnes authored
Just some extra debug output. Signed-off-by:
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Jesse Barnes authored
The watermark reg for the third pipe is in an unusual offset; add support for it and set watermarks for 3 pipe configs. Signed-off-by:
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Jesse Barnes authored
At the point where we check, we can't do much about the failure, but it can aid debugging. Note that the auto-train override bit will be reset as part of normal mode setting with this patch if a pipe ever does get stuck, but that's consistent with the workaround for CPT provided by the hardware team. This patch helped catch the fact that the pipe wasn't running in the !composite sync FDI case on my IVB SDV, so has already shown to be useful. Signed-off-by:
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Jesse Barnes authored
Transcoder A will always use PLL A and transcoder B will use PLL B. But transcoder C could use either, so always mask the select bits off before or'ing in a new value. Reported-by:
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Jesse Barnes authored
The cursor regs have moved around, add the offsets and new macros for getting at them. Signed-off-by:
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Jesse Barnes authored
We can have more than just A and B these days. Signed-off-by:
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Jesse Barnes authored
Add two new fields to the intel_crtc struct for 3 pipe support: no_pll and use_pll_a. The no_pll field is only set on the 3rd pipe to indicate that it doesn't have a PLL of its own and so shouldn't try to write the main PLL regs. The use_pll_a field controls which PLL pipe 3 will share, A or B. The core code will try to share PLLs with whichever pipe has the same timings, rejecting the mode set if none is found. This means that pipe 3 must always be set after one of the other pipes has been configured with real PLL settings. Signed-off-by:
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- 20 Oct, 2011 28 commits
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Jesse Barnes authored
Add a couple of checks now that we're using the 3rd transcoder: 1) make sure the transcoder PLL enable bit is set for the transcoder in question 2) when checking actual PLL enable, use the selected PLL number rather than the transcoder number (they could be different now) Signed-off-by: -
Jesse Barnes authored
Required for 3 pipe functionality. Signed-off-by:
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Jesse Barnes authored
Just a cleanup to make the mode_set function more manageable. Signed-off-by:
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Jesse Barnes authored
Well almost anyway. IVB has 3 planes, pipes, transcoders, and FDI interfaces, but only 2 pipe PLLs. So two of the pipes must use the same pipe timings (e.g. 2 DP plus one other, or two HDMI with the same mode and one other, etc.). Signed-off-by:
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Jesse Barnes authored
Add a macro for accessing the two pipe PLLs and add a check to make sure we don't access a non-existent one in the enable/disable functions. Signed-off-by:
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Jesse Barnes authored
It's needed for 3 pipe support as well as just regular functionality (e.g. DisplayPort). Signed-off-by:
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Jesse Barnes authored
v2 by danvet: Use a new flag to flush the render target cache on gen6+ (hw reuses the old write flush bit), as suggested by Ben Widawsdy. Signed-off-by:
Kenneth Graunke <kenneth@whitecape.org> [danvet: this seems to fix cairo-perf-trace hangs on my snb] Signed-Off-by:
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Kenneth Graunke authored
"STALL_AT_SCOREBOARD" is much clearer than "STALL_EN" now that there are several different kinds of stalls. Also, "INSTRUCTION_CACHE_INVALIDATE" is a lot easier to understand at a glance than the terse "IS_FLUSH." Signed-off-by:
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Kenneth Graunke authored
Not all PIPE_CONTROLs have a length of 2, so remove it from the #define and make each invocation specify the desired length. Signed-off-by:
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Ben Widawsky authored
Add the addresses and definitions I care about for Panel Self Refresh, as documented in the eDP spec. I'm sending these out before some other patches because this should be a fairly simple one to get upstream and not require too much fuss (where the others may have some fuss). This file is a mess with white spacing. I tried to stay consistent with the surrounding code. v2: had some silly mistakes in v1 which Keith caught Cc: Dave Airlie <airlied@redhat.com> Cc: Keith Packard <keithp@keithp.com> Signed-off-by:
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Ben Widawsky authored
Idle the GPU before doing any unmaps. We know if VT-d is in use through an exported variable from iommu code. This should avoid a known HW issue. Signed-off-by:
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Ben Widawsky authored
[Description from: Daniel Vetter] I've just discussed this quickly with Chris on irc and it's probably best to just kill the list_empty early bailout. gpu_idle isn't a fastpath, so who cares. One candidate where we emit commands to the ring without adding anything onto these lists is e.g. pageflip. There are probably more. Signed-off-by:
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David Woodhouse authored
We really don't want this to work in the general case; device drivers *shouldn't* care whether they are behind an IOMMU or not. But the integrated graphics is a special case, because the IOMMU and the GTT are all kind of smashed into one and generally horrifically buggy, so it's reasonable for the graphics driver to want to know when the IOMMU is active for the graphics hardware. Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com> Signed-off-by:
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David Woodhouse authored
To work around a hardware issue, we have to submit IOTLB flushes while the graphics engine is idle. The graphics driver will (we hope) go to great lengths to ensure that it gets that right on the affected chipset(s)... so let's not screw it over by deferring the unmap and doing it later. That wouldn't be very helpful. Signed-off-by:
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Daniel Vetter authored
Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Daniel Vetter authored
For the !HAVE_ATOMIC_IOMAP case the stub functions did not call pagefault_disable/_enable. The i915 driver relies on the map actually being atomic, otherwise it can deadlock with it's own pagefault handler in the gtt pwrite fastpath. This is exercised by gem_mmap_gtt from the intel-gpu-toosl gem testsuite. v2: Chris Wilson noted the lack of an include. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38115 Cc: stable@kernel.org Signed-off-by:
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Chris Wilson authored
We currently only round up the userspace size to the next page. We assume that userspace hasn't made a mistake and requested a zero-length gem object and all through our internal code we then presume that every object is backed by at least a single page. Fix that oversight and report EINVAL back to userspace if they try to create a zero length object. [danvet: This fixes tests/gem_bad_length] Signed-off-by:
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Daniel Vetter authored
Use the helper function already employed by the pwrite/pread functions. Signed-off-by:
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Daniel Vetter authored
Fixes tests/gem_tiled_pread on my snb. I know, mesa doesn't use this on gen6+, but I also hate failing testcases. Signed-off-by:
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Daniel Vetter authored
The rps disabling code wasn't properly cancelling outstanding work items. Also add a comment that explains why we're not racing with the work item that could unmask interrupts - that piece of code confused me quite a bit. v2: Ben Widawsky pointed out that the first patch would deadlock (and a few lesser problems). All corrected. Signed-off-by:
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Daniel Vetter authored
This patch closes the following race: We get a PM interrupt A, mask it, set dev_priv->iir = PM_A and kick of the work item. Scheduler isn't grumpy, so the work queue takes rps_lock, grabs pm_iir = dev_priv->pm_iir and pm_imr = READ(PMIMR). Note that pm_imr == pm_iir because we've just masked the interrupt we've got. Now hw sends out PM interrupt B (not masked), we process it and mask it. Later on the irq handler also clears PMIIR. Then the work item proceeds and at the end clears PMIMR. Because (local) pm_imr == pm_iir we have pm_imr & ~pm_iir == 0 so all interrupts are enabled. Hardware is still interrupt-happy, and sends out a new PM interrupt B. PMIMR doesn't mask B (it does not mask anything), PMIIR is cleared, so we get it and hit the WARN in the interrupt handler (because dev_priv->pm_iir == PM_B). That's why I've moved the WRITE(PMIMR, 0) up under the protection of the rps_lock. And write an uncoditional 0 to PMIMR, because that's what we'll do anyway. This races looks much more likely because we can arbitrarily extend the window by grabing dev->struct mutex right after the irq handler has processed the first PM_B interrupt. Signed-off-by: -
Daniel Vetter authored
Quoting Chris Wilson's more concise description: "Ah I think I see the problem. As you point out we only mask the current interrupt received, so that if we have a task pending (and so IMR != 0) we actually unmask the pending interrupt and so could receive it again before the tasklet is finally kicked off by the grumpy scheduler." We need the hw to issue PM interrupts A, B, A while the scheduler is hating us and refuses to run the rps work item. On receiving PM interrupt A we hit the WARN because dev_priv->pm_iir == PM_A | PM_B Also add a posting read as suggested by Chris to ensure proper ordering of the writes to PMIMR and PMIIR. Just in case somebody weakens write ordering. Signed-off-by:
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Adam Jackson authored
Signed-off-by:
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Adam Jackson authored
This is general TMDS detect, not HDMI specifically. Signed-off-by:
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Adam Jackson authored
I can't think of any sensible reason to limit this to a mask of 0x0f, ie, SDVO_OUTPUT_{TMDS,RGB,CVBS,SVID}0. Signed-off-by: -
Adam Jackson authored
I have no evidence for this byte being used this way, and lots of counterexamples. Restore the struct to its empirical definition and patch up gmbus setup to match. Signed-off-by:
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Keith Packard authored
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Keith Packard authored
Conflicts: drivers/gpu/drm/i915/intel_dp.c Just whitespace change conflicts
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- 12 Oct, 2011 1 commit
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Keith Packard authored
If the panel is powered up, there's no need to delay for the 'off' interval when turning the panel on. Signed-off-by:
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