linux.git/drivers/gpu/drm/i915, branch multitile

drm/i915/gt: make a gt sysfs group and move power management files

2022-01-06T11:50:58+00:00

The GT has its own properties and in sysfs they should be grouped in the 'gt/' directory. Create a 'gt/' directory in sysfs which will contain gt0...gtN directories related to each tile configured in the GPU. Move the power management files inside those directories. The previous power management files are kept in their original root directory to avoid breaking the ABI. They point to the tile '0' and a warning message is printed whenever accessed to. The deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2 flag in order to be generated. The new sysfs structure will have a similar layout for the 4 tile case: /sys/.../card0 ├── gt │ ├── gt0 │ │ ├── id │ │ ├── rc6_enable │ │ ├── rc6_residency_ms │ │ ├── rps_act_freq_mhz │ │ ├── rps_boost_freq_mhz │ │ ├── rps_cur_freq_mhz │ │ ├── rps_max_freq_mhz │ │ ├── rps_min_freq_mhz │ │ ├── rps_RP0_freq_mhz │ │ ├── rps_RP1_freq_mhz │ │ └── rps_RPn_freq_mhz . . . . . . │ └── gt3 │ ├── id │ ├── rc6_enable │ ├── rc6_residency_ms │ ├── rps_act_freq_mhz │ ├── rps_boost_freq_mhz │ ├── rps_cur_freq_mhz │ ├── rps_max_freq_mhz │ ├── rps_min_freq_mhz │ ├── rps_RP0_freq_mhz │ ├── rps_RP1_freq_mhz │ └── rps_RPn_freq_mhz ├── gt_act_freq_mhz -+ ├── gt_boost_freq_mhz | ├── gt_cur_freq_mhz | Original interface ├── gt_max_freq_mhz +─-> kept as existing ABI; ├── gt_min_freq_mhz | it points to gt0/ ├── gt_RP0_freq_mhz | └── gt_RP1_freq_mhz | └── gt_RPn_freq_mhz -+ Signed-off-by: Andi Shyti Signed-off-by: Lucas De Marchi Cc: Matt Roper Cc: Sujaritha Sundaresan Cc: Tvrtko Ursulin

drm/i915/guc: Update CT debug macro for multi-tile

2022-01-06T11:50:52+00:00

Update CT debug macros by including tile ID in all messages. Cc: Michał Winiarski Signed-off-by: Michal Wajdeczko Signed-off-by: Matt Roper

drm/i915/xehp: Make IRQ reset and postinstall multi-tile aware

2022-01-06T11:50:46+00:00

Loop through all the tiles when initializing and resetting interrupts. Signed-off-by: Paulo Zanoni Signed-off-by: Tvrtko Ursulin Signed-off-by: Matt Roper

drm/i915/xehp: Determine which tile raised an interrupt

2022-01-06T11:50:37+00:00

The first step of interrupt handling is to read a tile0 register that tells us in which tile the interrupt happened; we can then we read the usual interrupt registers from the appropriate tile. Note that this is just the first step of handling interrupts properly on multi-tile platforms. Subsequent patches will convert other parts of the interrupt handling flow. Cc: Stuart Summers Signed-off-by: Paulo Zanoni Signed-off-by: Tvrtko Ursulin Signed-off-by: Matt Roper

drm/i915: Initial support for per-tile uncore

2022-01-06T11:50:29+00:00

Initialization and suspend/resume is replicated per-tile. Signed-off-by: Daniele Ceraolo Spurio Signed-off-by: Tvrtko Ursulin Signed-off-by: Matt Roper Signed-off-by: Andi Shyti

drm/i915/xehpsdv: add device info

2022-01-06T11:50:13+00:00

Signed-off-by: Tvrtko Ursulin Signed-off-by: Matt Roper Signed-off-by: Andi Shyti

drm/i915: Prepare for multiple gt platforms

2022-01-06T11:50:07+00:00

On a multi-tile platform, each tile has its own registers + GGTT space, and BAR 0 is extended to cover all of them. Probe the tiles individually. Add some basic plumbing to support more than one dynamically allocated struct intel_gt. Up to four gts are supported in i915->gts[], with slot zero shadowing the existing i915->gt to enable source compatibility with legacy driver paths. A for_each_gt macro is added to iterate over the GTs and will be used by upcoming patches that convert various parts of the driver to be multi-gt aware. Check how many extra GT tiles are available on the system and setup register access for all of them. We can detect how may GT tiles are available by reading a register on the root tile. The same register returns the tile ID on all tiles. Signed-off-by: Abdiel Janulgue Signed-off-by: Tvrtko Ursulin Signed-off-by: Paulo Zanoni Signed-off-by: Daniele Ceraolo Spurio Signed-off-by: Michal Wajdeczko Signed-off-by: Venkata Sandeep Dhanalakota Signed-off-by: Matt Roper Signed-off-by: Andi Shyti Cc: Daniele Ceraolo Spurio Cc: Matthew Auld Cc: Joonas Lahtinen Cc: Lucas De Marchi Cc: Jani Nikula

Merge remote-tracking branch 'drm-intel/topic/core-for-CI' into drm-tip

2022-01-06T00:13:50+00:00

Merge remote-tracking branch 'drm-intel/drm-intel-gt-next' into drm-tip

2022-01-06T00:13:45+00:00

# Conflicts: # drivers/gpu/drm/i915/display/intel_fbc.c # drivers/gpu/drm/i915/gt/intel_gt.c # drivers/gpu/drm/i915/i915_driver.c

Merge remote-tracking branch 'drm-intel/drm-intel-next' into drm-tip

2022-01-06T00:13:43+00:00