diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context_types.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_types.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.c | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.h | 6 |
4 files changed, 22 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h index bf9cedfccbf0..6959b05ae5f8 100644 --- a/drivers/gpu/drm/i915/gt/intel_context_types.h +++ b/drivers/gpu/drm/i915/gt/intel_context_types.h @@ -58,6 +58,7 @@ struct intel_context { u32 *lrc_reg_state; u64 lrc_desc; + u32 tag; /* cookie passed to HW to track this context on submission */ unsigned int active_count; /* protected by timeline->mutex */ diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h index 943f0663837e..6199064f332b 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h @@ -303,10 +303,12 @@ struct intel_engine_cs { u8 uabi_class; u8 uabi_instance; + u32 uabi_capabilities; u32 context_size; u32 mmio_base; - u32 uabi_capabilities; + unsigned int context_tag; +#define NUM_CONTEXT_TAG roundup_pow_of_two(2 * EXECLIST_MAX_PORTS) struct rb_node uabi_node; diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 3cfea1758fd2..468438fb47af 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -440,12 +440,8 @@ assert_priority_queue(const struct i915_request *prev, static u64 lrc_descriptor(struct intel_context *ce, struct intel_engine_cs *engine) { - struct i915_gem_context *ctx = ce->gem_context; u64 desc; - BUILD_BUG_ON(MAX_CONTEXT_HW_ID > (BIT(GEN8_CTX_ID_WIDTH))); - BUILD_BUG_ON(GEN11_MAX_CONTEXT_HW_ID > (BIT(GEN11_SW_CTX_ID_WIDTH))); - desc = INTEL_LEGACY_32B_CONTEXT; if (i915_vm_is_4lvl(ce->vm)) desc = INTEL_LEGACY_64B_CONTEXT; @@ -463,20 +459,11 @@ lrc_descriptor(struct intel_context *ce, struct intel_engine_cs *engine) * anything below. */ if (INTEL_GEN(engine->i915) >= 11) { - GEM_BUG_ON(ctx->hw_id >= BIT(GEN11_SW_CTX_ID_WIDTH)); - desc |= (u64)ctx->hw_id << GEN11_SW_CTX_ID_SHIFT; - /* bits 37-47 */ - desc |= (u64)engine->instance << GEN11_ENGINE_INSTANCE_SHIFT; /* bits 48-53 */ - /* TODO: decide what to do with SW counter (bits 55-60) */ - desc |= (u64)engine->class << GEN11_ENGINE_CLASS_SHIFT; /* bits 61-63 */ - } else { - GEM_BUG_ON(ctx->hw_id >= BIT(GEN8_CTX_ID_WIDTH)); - desc |= (u64)ctx->hw_id << GEN8_CTX_ID_SHIFT; /* bits 32-52 */ } return desc; @@ -985,6 +972,18 @@ __execlists_schedule_in(struct i915_request *rq) intel_context_get(ce); + if (ce->tag) { + /* Use a fixed tag for OA and friends */ + ce->lrc_desc |= (u64)ce->tag << 32; + } else { + /* We don't need a strict matching tag, just different values */ + ce->lrc_desc &= ~GENMASK_ULL(47, 37); + ce->lrc_desc |= + (u64)(engine->context_tag++ % NUM_CONTEXT_TAG) << + GEN11_SW_CTX_ID_SHIFT; + BUILD_BUG_ON(NUM_CONTEXT_TAG > GEN12_MAX_CONTEXT_HW_ID); + } + intel_gt_pm_get(engine->gt); execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_IN); intel_engine_context_in(engine); @@ -2114,7 +2113,6 @@ static void execlists_context_unpin(struct intel_context *ce) check_redzone((void *)ce->lrc_reg_state - LRC_STATE_PN * PAGE_SIZE, ce->engine); - i915_gem_context_unpin_hw_id(ce->gem_context); i915_gem_object_unpin_map(ce->state->obj); intel_ring_reset(ce->ring, ce->ring->tail); } @@ -2164,18 +2162,12 @@ __execlists_context_pin(struct intel_context *ce, goto unpin_active; } - ret = i915_gem_context_pin_hw_id(ce->gem_context); - if (ret) - goto unpin_map; - ce->lrc_desc = lrc_descriptor(ce, engine); ce->lrc_reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE; __execlists_update_reg_state(ce, engine); return 0; -unpin_map: - i915_gem_object_unpin_map(ce->state->obj); unpin_active: intel_context_active_release(ce); err: diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.h b/drivers/gpu/drm/i915/gt/intel_lrc.h index 66ac616361c1..99dc576a4e25 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.h +++ b/drivers/gpu/drm/i915/gt/intel_lrc.h @@ -66,6 +66,12 @@ struct intel_engine_cs; #define GEN11_CSB_READ_PTR_MASK (GEN11_CSB_PTR_MASK << 8) #define GEN11_CSB_WRITE_PTR_MASK (GEN11_CSB_PTR_MASK << 0) +#define MAX_CONTEXT_HW_ID (1<<21) /* exclusive */ +#define MAX_GUC_CONTEXT_HW_ID (1 << 20) /* exclusive */ +#define GEN11_MAX_CONTEXT_HW_ID (1<<11) /* exclusive */ +/* in Gen12 ID 0x7FF is reserved to indicate idle */ +#define GEN12_MAX_CONTEXT_HW_ID (GEN11_MAX_CONTEXT_HW_ID - 1) + enum { INTEL_CONTEXT_SCHEDULE_IN = 0, INTEL_CONTEXT_SCHEDULE_OUT, |