diff options
| author |   Stuart Summers <stuart.summers@intel.com> | 2019-08-23 09:03:07 -0700 |
|---|---|---|
| committer |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-23 19:14:27 +0100 |
| commit | 100f5f7fbc3e23f58511a11a3751dfacf1ccb5a7 (patch) | |
| tree | 3616d2c903faab6ee96da9fdcc98187d683bbf8b /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | drm/i915: Add new function to copy subslices for a slice (diff) | |
| download | linux-dev-100f5f7fbc3e23f58511a11a3751dfacf1ccb5a7.tar.xz linux-dev-100f5f7fbc3e23f58511a11a3751dfacf1ccb5a7.zip | |
drm/i915: Expand subslice mask
Currently, the subslice_mask runtime parameter is stored as an
array of subslices per slice. Expand the subslice mask array to
better match what is presented to userspace through the
I915_QUERY_TOPOLOGY_INFO ioctl. The index into this array is
then calculated:
slice * subslice stride + subslice index / 8
v2: Fix 32-bit build
v3: Use new helper function in SSEU workaround warning message
v4: Use GEM_BUG_ON to force developers to use valid SSEU configurations
per platform (Chris)
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823160307.180813-12-stuart.summers@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 6e8b40299939..8c1d70425424 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -3864,13 +3864,16 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv, for (ss = 0; ss < info->sseu.max_subslices; ss++) { unsigned int eu_cnt; + u8 ss_idx = s * info->sseu.ss_stride + + ss / BITS_PER_BYTE; if (IS_GEN9_LP(dev_priv)) { if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss)))) /* skip disabled subslice */ continue; - sseu->subslice_mask[s] |= BIT(ss); + sseu->subslice_mask[ss_idx] |= + BIT(ss % BITS_PER_BYTE); } eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] & |