diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-07-30 19:39:06 +0100 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-09-07 13:16:43 +0300 |
| commit | d1bf5dd8f6d510999b8a12687ee2662e26ab720c (patch) | |
| tree | 978594daafe603eab5fc0db7fa8433405b4121ad /drivers/gpu/drm/i915/gt/intel_engine_cs.c | |
| parent | eb4dedae920a07c485328af3da2202ec5184fb17 (diff) | |
| download | lwn-d1bf5dd8f6d510999b8a12687ee2662e26ab720c.tar.gz lwn-d1bf5dd8f6d510999b8a12687ee2662e26ab720c.zip | |
drm/i915/gt: Support multiple pinned timelines
We may need to allocate more than one pinned context/timeline for each
engine which can utilise the per-engine HWSP, so we need to give each
a different offset within it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730183906.25422-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_cs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_cs.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index dd1a42c4d344..86651bbef3a0 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -785,9 +785,11 @@ intel_engine_init_active(struct intel_engine_cs *engine, unsigned int subclass) } static struct intel_context * -create_kernel_context(struct intel_engine_cs *engine) +create_pinned_context(struct intel_engine_cs *engine, + unsigned int hwsp, + struct lock_class_key *key, + const char *name) { - static struct lock_class_key kernel; struct intel_context *ce; int err; @@ -796,6 +798,7 @@ create_kernel_context(struct intel_engine_cs *engine) return ce; __set_bit(CONTEXT_BARRIER_BIT, &ce->flags); + ce->timeline = page_pack_bits(NULL, hwsp); err = intel_context_pin(ce); /* perma-pin so it is always available */ if (err) { @@ -809,11 +812,20 @@ create_kernel_context(struct intel_engine_cs *engine) * should we need to inject GPU operations during their request * construction. */ - lockdep_set_class(&ce->timeline->mutex, &kernel); + lockdep_set_class_and_name(&ce->timeline->mutex, key, name); return ce; } +static struct intel_context * +create_kernel_context(struct intel_engine_cs *engine) +{ + static struct lock_class_key kernel; + + return create_pinned_context(engine, I915_GEM_HWS_SEQNO_ADDR, + &kernel, "kernel_context"); +} + /** * intel_engines_init_common - initialize cengine state which might require hw access * @engine: Engine to initialize. |