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2011-01-25drm/i915: remove now unnecessary delays in eDP panel power sequencingJesse Barnes1-10/+0
Now that we're doing the right thing elsewhere, these are no longer necessary. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31114 Signed-off-by: Jesse Barnes <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-25drm/i915: Refactor self-refresh watermark calculationsChris Wilson2-191/+200
Move the plane->mode config to the point of use rather than repeatedly querying the same information. Signed-off-by: Chris Wilson <[email protected]>
2011-01-25drm/i915: Silence a few -Wunused-but-set-variableChris Wilson3-5/+5
Signed-off-by: Chris Wilson <[email protected]>
2011-01-25drm/nvc0/grctx: correct an off-by-oneBen Skeggs1-1/+1
Signed-off-by: Ben Skeggs <[email protected]>
2011-01-25drm/nv50: Fix race with PFIFO during PGRAPH context destruction.Francisco Jerez1-0/+3
Reported-by: Xavier Chantry <[email protected]> Signed-off-by: Francisco Jerez <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2011-01-25drm/nouveau: Workaround incorrect DCB entry on a GeForce3 Ti 200.Francisco Jerez1-0/+15
Fixes the DVI-D output on that board (fdo bug 32645). Reported-by: Bryan Quigley <[email protected]> Signed-off-by: Francisco Jerez <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2011-01-25drm/nvc0: implement irq handler for whatever's at 0x14xxxxBen Skeggs1-0/+19
This is just barely enough to stop a never-ending IRQ storm that can be triggered by our 3D driver. We have no idea what this engine is.. Signed-off-by: Ben Skeggs <[email protected]>
2011-01-25drm/nvc0: fix incorrect TPC register setupBen Skeggs1-2/+2
Was hitting TPC+1's regs by accident, oops. Reported-by: Christoph Bumiller <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2011-01-25drm/nouveau: probe for adt7473 before f75375Ben Skeggs1-1/+1
There's a reported case where probing for f75375 causes the system to hang completely, in this case there's an adt7473 at the same i2c address. Signed-off-by: Ben Skeggs <[email protected]>
2011-01-25drm/nouveau: remove dead function definitionBen Skeggs1-3/+0
Signed-off-by: Ben Skeggs <[email protected]>
2011-01-24Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson13-59/+141
Merge important suspend and resume regression fixes and resolve the small conflict. Conflicts: drivers/gpu/drm/i915/i915_dma.c
2011-01-25Merge branch 'drm-intel-fixes-2' of ↵Dave Airlie13-56/+167
ssh://master.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel into drm-fixes * 'drm-intel-fixes-2' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: (30 commits) drm/i915: Prevent uninitialised reads during error state capture drm/i915: Use consistent mappings for OpRegion between ACPI and i915 drm/i915: Handle the no-interrupts case for UMS by polling drm/i915: Disable high-precision vblank timestamping for UMS drm/i915: Increase the amount of defense before computing vblank timestamps drm/i915,agp/intel: Do not clear stolen entries Remove MAYBE_BUILD_BUG_ON BUILD_BUG_ON: make it handle more cases module: fix missing semicolons in MODULE macro usage param: add null statement to compiled-in module params module: fix linker error for MODULE_VERSION when !MODULE and CONFIG_SYSFS=n module: show version information for built-in modules in sysfs selinux: return -ENOMEM when memory allocation fails tpm: fix panic caused by "tpm: Autodetect itpm devices" TPM: Long default timeout fix trusted keys: Fix a memory leak in trusted_update(). keys: add trusted and encrypted maintainers encrypted-keys: rename encrypted_defined files to encrypted trusted-keys: rename trusted_defined files to trusted drm/i915: Recognise non-VGA display devices ...
2011-01-25drm/radeon/kms: add new radeon_info ioctl query for clock crystal freqAlex Deucher2-1/+5
Needed for timer queries in the 3D driver. Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2011-01-24drm/i915: Prevent uninitialised reads during error state captureChris Wilson1-0/+2
error_bo and pinned_bo could be used uninitialised if there were no active buffers. Caught by kmemcheck. Signed-off-by: Chris Wilson <[email protected]>
2011-01-24drm/i915: Use consistent mappings for OpRegion between ACPI and i915Michael Karcher1-1/+2
The opregion is a shared memory region between ACPI and the graphics driver. As the ACPI mapping has been changed to cachable in commit 6d5bbf00d251cc73223a71422d69e069dc2e0b8d, mapping the intel opregion non-cachable now fails. As no bus-master hardware is involved in the opregion, cachable map should do no harm. Tested on a Fujitsu Lifebook P8010. Signed-off-by: Michael Karcher <[email protected]> [ickle: convert to acpi_os_ioremap for consistency] Signed-off-by: Chris Wilson <[email protected]>
2011-01-24Merge remote branch 'linus/master' into drm-intel-fixesChris Wilson3-4/+4
Merge with Linus to resolve conflicting fixes for the reusing the stale HEAD value during intel_ring_wait(). Conflicts: drivers/gpu/drm/i915/intel_ringbuffer.c
2011-01-24drm/i915: Handle the no-interrupts case for UMS by pollingChris Wilson1-2/+2
If the driver calls into the kernel to wait for a breadcrumb to pass, but hasn't enabled interrupts, fallback to polling the breadcrumb value. Reported-by: Chris Clayton <[email protected]> Tested-by: Chris Clayton <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-24drm/i915: Disable high-precision vblank timestamping for UMSChris Wilson1-0/+3
We only have sufficient information for accurate (sub-frame) timestamping when the modesetting is under our control. Reported-by: Chris Clayton <[email protected]> Tested-by: Chris Clayton <[email protected]> Reviewed-by: Mario Kleiner <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-24drm/i915: Increase the amount of defense before computing vblank timestampsChris Wilson1-7/+18
Reported-by: Chris Clayton <[email protected]> Tested-by: Chris Clayton <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-24drm/i915,agp/intel: Do not clear stolen entriesChris Wilson3-4/+15
We can only utilize the stolen portion of the GTT if we are in sole charge of the hardware. This is only true if using GEM and KMS, otherwise VESA continues to access stolen memory. Reported-by: Arnd Bergmann <[email protected]> Reported-by: Frederic Weisbecker <[email protected]> Tested-by: Jiri Olsa <[email protected]> Tested-by: Frederic Weisbecker <[email protected]> Cc: Daniel Vetter <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-24drm/radeon/kms: simplify atom adjust pll setupAlex Deucher1-17/+5
Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2011-01-24drm/radeon/kms: match r6xx/r7xx/evergreen asic_reset with previous asicsAlex Deucher2-0/+6
Don't reset if the engine isn't busy. This matches the behavior of previous asics. Reseting a non-hung block can lead to a hang. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=33272 Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2011-01-24drm/radeon/kms: make the mac rv630 quirk genericAlex Deucher1-9/+5
Seems some other boards do this as well. Reported-by: Andrea Merello <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected] Signed-off-by: Dave Airlie <[email protected]>
2011-01-24drm/radeon/kms: fix a spelling error in an error messageAlex Deucher1-1/+1
Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2011-01-24drm/radeon/kms: Initialize pageflip spinlocks.Michel Dänzer1-0/+3
I'm amazed but not really surprised this worked on x86... Signed-off-by: Michel Dänzer <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2011-01-23drm/i915: Recognise non-VGA display devicesChris Wilson2-3/+9
Starting with SandyBridge (though possible with earlier hacked BIOSes), the BIOS may initialise the IGFX as secondary to a discrete GPU. Prior, it would simply disable the integrated GPU. So we adjust our PCI class mask to match any DISPLAY_CLASS device. In such a configuration, the IGFX is not a primary VGA controller and so should not take part in VGA arbitration, and the error return from vga_client_register() is expected. Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2011-01-23drm/i915: Fix use of invalid array size for ring->sync_seqnoChris Wilson2-2/+2
There are I915_NUM_RINGS-1 inter-ring synchronisation counters, but we were clearing I915_NUM_RINGS of them. Oops. Reported-by: Jiri Slaby <[email protected]> Tested-by: Jiri Slaby <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-23drm/i915: Remove unused code: i915_enable_interrupt()Chris Wilson2-13/+0
Signed-off-by: Chris Wilson <[email protected]>
2011-01-20Merge branch 'akpm'Linus Torvalds3-4/+4
* akpm: kernel/smp.c: consolidate writes in smp_call_function_interrupt() kernel/smp.c: fix smp_call_function_many() SMP race memcg: correctly order reading PCG_USED and pc->mem_cgroup backlight: fix 88pm860x_bl macro collision drivers/leds/ledtrig-gpio.c: make output match input, tighten input checking MAINTAINERS: update Atmel AT91 entry mm: fix truncate_setsize() comment memcg: fix rmdir, force_empty with THP memcg: fix LRU accounting with THP memcg: fix USED bit handling at uncharge in THP memcg: modify accounting function for supporting THP better fs/direct-io.c: don't try to allocate more than BIO_MAX_PAGES in a bio mm: compaction: prevent division-by-zero during user-requested compaction mm/vmscan.c: remove duplicate include of compaction.h memblock: fix memblock_is_region_memory() thp: keep highpte mapped until it is no longer needed kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERTDavid Rientjes3-4/+4
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: Ingo Molnar <[email protected]> Acked-by: David Woodhouse <[email protected]> Signed-off-by: David Rientjes <[email protected]> Cc: Greg KH <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Robin Holt <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-01-20i915: Fix i915 suspend delayLinus Torvalds2-3/+3
During system suspend, the "wait for ring buffer to empty" loop would always time out after three seconds, because the faster cached ring buffer head read would always return zero. Force the slow-and-careful PIO read on all but the first iterations of the loop to fix it. This also removes the unused (and useless) 'actual_head' variable that tried to approximate doing this, but did it incorrectly. Cc: Chris Wilson <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Jesse Barnes <[email protected]> Cc: Dave Airlie <[email protected]> Cc: DRI mailing list <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-01-20drm/i915/ringbuffer: Fix use of stale HEAD position whilst polling for spaceChris Wilson2-17/+24
During suspend, Linus found that his machine would hang for 3 seconds, and identified that intel_ring_buffer_wait() was the culprit: "Because from looking at the code, I get the notion that "intel_read_status_page()" may not be exact. But what happens if that inexact value matches our cached ring->actual_head, so we never even try to read the exact case? Does it _stay_ inexact for arbitrarily long times? If so, we might wait for the ring to empty forever (well, until the timeout - the behavior I see), even though the ring really _is_ empty." As the reported HEAD position is only updated every time it crosses a 64k boundary, whilst draining the ring it is indeed likely to remain one value. If that value matches the last known HEAD position, we never read the true value from the register and so trigger a timeout. Reported-by: Linus Torvalds <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-20drm/i915/ringbuffer: Kill an annoyingly frequent debug messageChris Wilson1-1/+0
This is better handled through the tracepoints and just clutters the debug logs. Signed-off-by: Chris Wilson <[email protected]>
2011-01-20drm/i915: Don't kick-off hangcheck after a DRI interruptChris Wilson1-1/+5
Hangcheck and error recovery is only used by GEM. Reported-by: Herbert Xu <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-20drm/i915: Add dependency on CONFIG_TMPFSChris Wilson1-0/+3
Without tmpfs, shmem_readpage() is not compiled in causing an OOPS as soon as we try to allocate some swappable pages for GEM. Jan 19 22:52:26 harlie kernel: Modules linked in: i915(+) drm_kms_helper cfbcopyarea video backlight cfbimgblt cfbfillrect Jan 19 22:52:26 harlie kernel: Jan 19 22:52:26 harlie kernel: Pid: 1125, comm: modprobe Not tainted 2.6.37Harlie #10 To be filled by O.E.M./To be filled by O.E.M. Jan 19 22:52:26 harlie kernel: EIP: 0060:[<00000000>] EFLAGS: 00010246 CPU: 3 Jan 19 22:52:26 harlie kernel: EIP is at 0x0 Jan 19 22:52:26 harlie kernel: EAX: 00000000 EBX: f7b7d000 ECX: f3383100 EDX: f7b7d000 Jan 19 22:52:26 harlie kernel: ESI: f1456118 EDI: 00000000 EBP: f2303c98 ESP: f2303c7c Jan 19 22:52:26 harlie kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Jan 19 22:52:26 harlie kernel: Process modprobe (pid: 1125, ti=f2302000 task=f259cd80 task.ti=f2302000) Jan 19 22:52:26 harlie kernel: Stack: Jan 19 22:52:26 harlie udevd-work[1072]: '/sbin/modprobe -b pci:v00008086d00000046sv00000000sd00000000bc03sc00i00' unexpected exit with status 0x0009 Jan 19 22:52:26 harlie kernel: c1074061 000000d0 f2f42b80 00000000 000a13d2 f2d5dcc0 00000001 f2303cac Jan 19 22:52:26 harlie kernel: c107416f 00000000 000a13d2 00000000 f2303cd4 f8d620ed f2cee620 00001000 Jan 19 22:52:26 harlie kernel: 00000000 000a13d2 f1456118 f2d5dcc0 f1a40000 00001000 f2303d04 f8d637ab Jan 19 22:52:26 harlie kernel: Call Trace: Jan 19 22:52:26 harlie kernel: [<c1074061>] ? do_read_cache_page+0x71/0x160 Jan 19 22:52:26 harlie kernel: [<c107416f>] ? read_cache_page_gfp+0x1f/0x30 Jan 19 22:52:26 harlie kernel: [<f8d620ed>] ? i915_gem_object_get_pages+0xad/0x1d0 [i915] Jan 19 22:52:26 harlie kernel: [<f8d637ab>] ? i915_gem_object_bind_to_gtt+0xeb/0x2d0 [i915] Jan 19 22:52:26 harlie kernel: [<f8d65961>] ? i915_gem_object_pin+0x151/0x190 [i915] Jan 19 22:52:26 harlie kernel: [<c11e16ed>] ? drm_gem_object_init+0x3d/0x60 Jan 19 22:52:26 harlie kernel: [<f8d65aa5>] ? i915_gem_init_ringbuffer+0x105/0x1e0 [i915] Jan 19 22:52:26 harlie kernel: [<f8d571b7>] ? i915_driver_load+0x667/0x1160 [i915] Reported-by: John J. Stimson-III <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2011-01-20drm/i915: Initialise ring vfuncs for old DRI pathsChris Wilson3-18/+52
We weren't setting up the vfunc table when initialising the old DRI ringbuffer, leading to such OOPSes as: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<(null)>] (null) PGD 10c441067 PUD 1185e5067 PMD 0 Oops: 0010 [#1] PREEMPT SMP last sysfs file: /sys/class/dmi/id/chassis_asset_tag CPU 3 Modules linked in: i915 drm_kms_helper drm fb fbdev i2c_algo_bit cfbcopyarea video backlight output cfbimgblt cfbfillrect autofs4 ipv6 nfs lockd fscache nfs_acl auth_rpcgss sunrpc coretemp hwmon_vid mousedev usbhid hid option usb_wwan snd_hda_codec_via asus_atk0110 atl1e usbserial snd_hda_intel snd_hda_codec firmware_class snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device processor parport_pc thermal snd thermal_sys parport 8250_pnp button rng_core rtc_cmos shpchp hwmon rtc_core ehci_hcd pci_hotplug uhci_hcd soundcore tpm_tis i2c_i801 rtc_lib tpm serio_raw snd_page_alloc tpm_bios i2c_core usbcore psmouse intel_agp sg pcspkr sr_mod evdev cdrom ext3 jbd mbcache dm_mod sd_mod ata_piix libata scsi_mod unix Jan 18 15:49:29 lithui kernel: Pid: 3605, comm: Xorg Not tainted 2.6.36.2 #5 P5KPL-CM/System Product Name RIP: 0010:[<0000000000000000>] [<(null)>] (null) RSP: 0018:ffff8801150d1d40 EFLAGS: 00010202 RAX: 000000000001ffff RBX: ffff88011a011b00 RCX: 000000000001a704 RDX: ffff880118566028 RSI: ffff880118566028 RDI: ffff880117876800 RBP: ffff8801150d1d48 R08: ffff8801195fe300 R09: 00000000c0086444 R10: 0000000000000001 R11: 0000000000003206 R12: ffff880117876800 R13: ffff880118566000 R14: ffff880117876820 R15: ffff8801150d1df8 FS: 00007f1038d456e0(0000) GS:ffff880001780000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001187e7000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process Xorg (pid: 3605, threadinfo ffff8801150d0000, task ffff88011b016e40) Stack: ffffffffa043b8e6 ffff8801150d1d98 ffffffffa041768b dead000000000000 <0> 0000000000000048 00007f1023f2a000 0000000000000044 0000000000000008 <0> ffff88010d26bd80 ffff880117876800 ffff8801150d1df8 ffff8801150d1ea8 Call Trace: [<ffffffffa043b8e6>] ? intel_ring_advance+0x16/0x20 [i915] [<ffffffffa041768b>] i915_irq_emit+0x15b/0x240 [i915] [<ffffffffa03ea7b1>] drm_ioctl+0x1f1/0x460 [drm] [<ffffffffa0417530>] ? i915_irq_emit+0x0/0x240 [i915] [<ffffffff810dd8f1>] ? do_sync_read+0xd1/0x120 [<ffffffff81025b1f>] ? do_page_fault+0x1df/0x3d0 [<ffffffff810ed5c7>] do_vfs_ioctl+0x97/0x550 [<ffffffff8115c2ea>] ? security_file_permission+0x7a/0x90 [<ffffffff810edb19>] sys_ioctl+0x99/0xa0 [<ffffffff810024ab>] system_call_fastpath+0x16/0x1b Code: Bad RIP value. RIP [<(null)>] (null) RSP <ffff8801150d1d40> CR2: 0000000000000000 Reported-by: Herbert Xu <[email protected]> Tested-by: Herbert Xu <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29153 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=23172 Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2011-01-20Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson2-1/+30
Apply the SandyBridge stability fixes from -fixes.
2011-01-19drm/i915: Include TLB miss latency in g4x watermark computationsChris Wilson2-65/+160
Reports of FIFO underruns are still persisting on gm45. References: https://bugs.freedesktop.org/show_bug.cgi?id=27589 Signed-off-by: Chris Wilson <[email protected]>
2011-01-19GPU DRM: Remove unnecessary casts of void ptr returning alloc function ↵Jesper Juhl1-3/+1
return values The [vk][cmz]alloc(_node) family of functions return void pointers which it's completely unnecessary/pointless to cast to other pointer types since that happens implicitly. This patch removes such casts from drivers/gpu/drm/ Signed-off-by: Jesper Juhl <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2011-01-19drm/i915: Disable SSC for outputs other than LVDS or DPChris Wilson4-26/+36
For CRT and SDVO/HDMI, we need to use a normal, non-SSC, clock and so we must clear any enabling bits left-over from earlier outputs. And also seems to correct the LVDS panel on the Lenovo U160. However, at one point, it did cause an "ERROR failed to disable trancoder". So prolonged testing on top of Jesse's refactored and error-checking CRTC logic is desired. Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915/bios: Change default clock source on PineView to use SSCBryan Freed1-8/+23
The i915 driver normally assumes the video bios has configured several of the LVDS panel registers, and it just inherits the values. If the vbios has not run, several of these will need to be setup. If these are not correct then although the panel looks ok, output from an HDMI encoder (eg, Chrontel CH7036) will be incorrect. Signed-off-by: Mark Hayter <[email protected]> [ickle: minor adjustments] Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: Honour LVDS sync polarity from EDIDBryan Freed2-0/+21
The i915 driver normally assumes the video bios has configured several of the LVDS panel registers, and it just inherits the values. If the vbios has not run, several of these will need to be setup. So we need to check that the LVDS sync polarity is correctly configured per any available modelines (e.g. EDID) and adjust if not, issuing a warning as we do. Signed-off-by: Mark Hayter <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: tune Sandy Bridge DRPS constantsJesse Barnes3-8/+46
These make us increase our frequency much more readily, and decrease them only after significant idle time, resulting in a 20% performance increase for nexuiz. Signed-off-by: Jesse Barnes <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: Trivial sparse fixesChris Wilson8-36/+35
Move code around and invoke iomem annotation in a few more places in order to silence sparse. Still a few more iomem annotations to go... Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: allow 945 to control self refresh (CxSR) automaticallyAlexander Lam1-38/+24
I changed 945's self refresh to work without the need for the driver to enable/disable self refresh manually based on the idle state of the gpu. This is much better than enabling/disabling self refresh for various reasons, including staying in a lower power state for more time and avoiding the need for cpu cycles. This was originally done manually to workaround issues with the hardware hanging. However, since 944001201: drm/i915: enable low power render writes on GEN3 hardware, automatic CxSR seems stable. Signed-off-by: Alexander Lam <[email protected]> Acked-by : Li Peng <[email protected]> [ickle: play safe with the ordering and disable CxSR before tweaking any watermark and enable afterwards.] Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: Use PM QoS to prevent C-State starvation of gen3 GPUChris Wilson2-0/+38
945 class hardware has an interesting quirk in which the vblank interrupt is not raised if the CPU is in a low power state. (We also suspect that the memory bus is clocked to the CPU/c-state and not the GPU so there are secondary starvation issues.) In order to prevent the most obvious issue of the low of the vblank interrupt (stuttering compositing that only updates when the mouse is moving) is to install a PM QoS request to prevent low c-states whilst the GPU is active. Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: skip FDI & PCH enabling for DP_AJesse Barnes1-37/+60
eDP on the CPU doesn't need the PCH set up at all, it can in fact cause problems. So avoid FDI training and PCH PLL enabling in that case. Signed-off-by: Jesse Barnes <[email protected]> Tested-by: Yuanhan Liu <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: set phase sync pointer override enable before setting phase sync ↵Jesse Barnes2-4/+11
pointer We need to unlock the phase sync pointer enable bit before we can actually enable the phase sync pointer workaround on Ironlake. Signed-off-by: Jesse Barnes <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: factor out FDI disable and add FDI assertionsJesse Barnes1-44/+60
Factor out the FDI disable function (make it a mirror of ironlake_fdi_enable) and add some FDI related assertions to the FDI training code (we need an active pipe & plane before we start transmitting bits). Signed-off-by: Jesse Barnes <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2011-01-19drm/i915: add transcoder enable/disable functionsJesse Barnes1-25/+170
Along with assertion checks for the FDI transmitters and receivers (including PLLs). Modify the pipe enable function to check for FDI PLL status as well, when driving PCH ports. Signed-off-by: Jesse Barnes <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
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