kernel/drivers/gpu/drm/i915/intel_csr.c, branch linux-4.17.y

drm/i915/glk: Add MODULE_FIRMWARE for Geminilake

2018-04-30T07:48:37Z

As the Geminilake firmware is now merged to linux-firmware.git use MODUE_FIRMWARE to load the firmware. This removes the error message in the dmesg log: i915 0000:00:02.0: Direct firmware load for i915/glk_dmc_ver1_04.bin failed with error -2 i915 0000:00:02.0: Failed to load DMC firmware i915/glk_dmc_ver1_04.bin. Disabling runtime power management. i915 0000:00:02.0: DMC firmware homepage: https://01.org/linuxgraphics/downloads/firmware and now shows that the firmware has correctly loaded: [drm] Finished loading DMC firmware i915/glk_dmc_ver1_04.bin (v1.4) Signed-off-by: Ian W MORRISON Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20180411044213.383-1-ianwmorrison@gmail.com (cherry picked from commit f6d3e06f074721ad3a231df745d85b60428c1f03) Signed-off-by: Joonas Lahtinen

drm/i915/dmc: DMC 1.07 for Cannonlake

2018-01-05T00:29:12Z

There is a new version of DMC available for CNL. The release notes mentions: 1. Fix for the issue where DC_STATE was getting enabled even when disabled by driver causing data corruption v2: Since the firmware is merged to linux-firmware.git, add MODULE_FIRMWARE. v3: rebased. Correct commit message(Jani) Cc: Jani Saarinen Cc: Rodrigo Vivi Signed-off-by: Anusha Srivatsa Reviewed-by: Rodrigo Vivi Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/1515109902-14076-1-git-send-email-anusha.srivatsa@intel.com

drm/i915/skl: DMC firmware for skylake v1.27

2017-12-05T13:57:08Z

There is a new version of dmc available for skylake. Following additions from ver1.27 1. Fix for the issue where DC_STATE was getting enabled even when disabled by driver causing data corruption. Cc: Rodrigo Vivi Signed-off-by: Anusha Srivatsa Reviewed-by: Imre Deak Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/1510276712-29590-2-git-send-email-anusha.srivatsa@intel.com

drm/i915/dmc: DMC 1.04 for Kabylake

2017-11-23T09:14:11Z

There is a new version of DMC available for KBL. The release notes mentions: 1. Fix for the issue where DC_STATE was getting enabled even when disabled by driver causing data corruption. v2: Remove pull request from commit message (Rodrigo). Cc: Rodrigo Vivi Signed-off-by: Anusha Srivatsa Reviewed-by: Rodrigo Vivi Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/1510253503-12634-1-git-send-email-anusha.srivatsa@intel.com

drm/i915: Silence compiler for csr_load_work_fn()

2017-11-07T17:50:10Z

gcc-4.7 is not very smart and can not tell that "si" is guarded by size being 0. So it complains, drivers/gpu/drm/i915/intel_csr.c: In function ‘csr_load_work_fn’: drivers/gpu/drm/i915/intel_csr.c:204:3: warning: ‘si’ may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/gpu/drm/i915/intel_csr.c:190:30: note: ‘si’ was declared in Give in and mark si as NULL. Signed-off-by: Chris Wilson Cc: Anusha Srivatsa Cc: Rodrigo Vivi Cc: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20171107145334.27154-1-chris@chris-wilson.co.uk Reviewed-by: Gabriel Krisman Bertazi Reviewed-by: Michal Wajdeczko

drm/i915/cnl: Update the DMC version on CNL

2017-10-24T20:52:00Z

The latest version of DMC on CNL is 1.06. Update the version so as to load the latest firmware. Release Notes: Version: 1.06 1. DDI and AUX IO related fix. v2: Improve the prefixes in commit message. Add Release Notes directly. (Rodrigo) Cc: Rodrigo Vivi Signed-off-by: Anusha Srivatsa Reviewed-by: Rodrigo Vivi Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/1507053588-677-1-git-send-email-anusha.srivatsa@intel.com

drm/i915: Update DMC firmware load error messages

2017-10-16T15:53:28Z

Some of the error messages from DMC load were too generic and may be confusing for the user. Lets explicitly add DMC words there. Also as homepage of DMC firmware is same as for the GuC and Huc, lets reuse URL definition. Signed-off-by: Michal Wajdeczko Cc: Chris Wilson Cc: Imre Deak Cc: Mika Kuoppala Reviewed-by: Chris Wilson Signed-off-by: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/20171016144724.17244-12-michal.wajdeczko@intel.com

drm/i915/glk: Fix DMC/DC state idleness calculation

2017-10-04T08:38:33Z

According to BSpec GLK like BXT needs to ignore the idle state of cores before starting the DMC firmware's DC state handler. Fixes: dbb28b5c3d3c ("drm/i915/DMC/GLK: Load DMC on GLK") Cc: Anusha Srivatsa Cc: Rodrigo Vivi Signed-off-by: Imre Deak Reviewed-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20171003095159.711-2-imre.deak@intel.com

drm/i915: Speed up DMC firmware loading

2017-09-25T13:48:44Z

Currently we're doing: 1. acquire lock 2. write word to hardware 3. release lock 4. repeat from 1 to load the DMC firmware. Due to the cost of acquiring/releasing a lock, and the size of the DMC firmware, this slows down DMC loading a lot. This patch simply acquires the lock, writes the entire firmware, then releases the lock. Testing shows resume speedups in the order of 10ms on platforms with DMC firmware (GEN9+). v2: Per feedback from Chris & Ville there's no need to do the whole forcewake dance, so lose that bit (Chris, Ville) v3: Actually send the new version of the patch... v4: Don't acquire the uncore lock. Disable preempt. (Chris) Signed-off-by: David Weinehall Link: https://patchwork.freedesktop.org/patch/msgid/20170905131050.11655-1-david.weinehall@linux.intel.com Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson

drm/i915: Use HAS_CSR instead of gen number on DMC load.

2017-06-12T16:45:30Z

Since we have HAS_CSR tied to the platform definition let's use this instead of checking per platform. One less thing to worry when adding support to new platforms. Signed-off-by: Rodrigo Vivi Reviewed-by: Animesh Manna Link: http://patchwork.freedesktop.org/patch/msgid/1497047175-27250-14-git-send-email-rodrigo.vivi@intel.com