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path: root/drivers/gpu/drm/i915/intel_lrc.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.c')
-rw-r--r--drivers/gpu/drm/i915/intel_lrc.c964
1 files changed, 435 insertions, 529 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 7f2d8415ed8b..414ddda43922 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -208,31 +208,27 @@
} while (0)
enum {
- ADVANCED_CONTEXT = 0,
- LEGACY_32B_CONTEXT,
- ADVANCED_AD_CONTEXT,
- LEGACY_64B_CONTEXT
-};
-#define GEN8_CTX_ADDRESSING_MODE_SHIFT 3
-#define GEN8_CTX_ADDRESSING_MODE(dev) (USES_FULL_48BIT_PPGTT(dev) ?\
- LEGACY_64B_CONTEXT :\
- LEGACY_32B_CONTEXT)
-enum {
FAULT_AND_HANG = 0,
FAULT_AND_HALT, /* Debug only */
FAULT_AND_STREAM,
FAULT_AND_CONTINUE /* Unsupported */
};
#define GEN8_CTX_ID_SHIFT 32
+#define GEN8_CTX_ID_WIDTH 21
#define GEN8_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x17
#define GEN9_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x26
-static int intel_lr_context_pin(struct intel_context *ctx,
+/* Typical size of the average request (2 pipecontrols and a MI_BB) */
+#define EXECLISTS_REQUEST_SIZE 64 /* bytes */
+
+static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
+ struct intel_engine_cs *engine);
+static int intel_lr_context_pin(struct i915_gem_context *ctx,
struct intel_engine_cs *engine);
/**
* intel_sanitize_enable_execlists() - sanitize i915.enable_execlists
- * @dev: DRM device.
+ * @dev_priv: i915 device private
* @enable_execlists: value of i915.enable_execlists module parameter.
*
* Only certain platforms support Execlists (the prerequisites being
@@ -240,23 +236,22 @@ static int intel_lr_context_pin(struct intel_context *ctx,
*
* Return: 1 if Execlists is supported and has to be enabled.
*/
-int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists)
+int intel_sanitize_enable_execlists(struct drm_i915_private *dev_priv, int enable_execlists)
{
- WARN_ON(i915.enable_ppgtt == -1);
-
/* On platforms with execlist available, vGPU will only
* support execlist mode, no ring buffer mode.
*/
- if (HAS_LOGICAL_RING_CONTEXTS(dev) && intel_vgpu_active(dev))
+ if (HAS_LOGICAL_RING_CONTEXTS(dev_priv) && intel_vgpu_active(dev_priv))
return 1;
- if (INTEL_INFO(dev)->gen >= 9)
+ if (INTEL_GEN(dev_priv) >= 9)
return 1;
if (enable_execlists == 0)
return 0;
- if (HAS_LOGICAL_RING_CONTEXTS(dev) && USES_PPGTT(dev) &&
+ if (HAS_LOGICAL_RING_CONTEXTS(dev_priv) &&
+ USES_PPGTT(dev_priv) &&
i915.use_mmio_flip >= 0)
return 1;
@@ -266,19 +261,17 @@ int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists
static void
logical_ring_init_platform_invariants(struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
+ struct drm_i915_private *dev_priv = engine->i915;
- if (IS_GEN8(dev) || IS_GEN9(dev))
+ if (IS_GEN8(dev_priv) || IS_GEN9(dev_priv))
engine->idle_lite_restore_wa = ~0;
- engine->disable_lite_restore_wa = (IS_SKL_REVID(dev, 0, SKL_REVID_B0) ||
- IS_BXT_REVID(dev, 0, BXT_REVID_A1)) &&
+ engine->disable_lite_restore_wa = (IS_SKL_REVID(dev_priv, 0, SKL_REVID_B0) ||
+ IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) &&
(engine->id == VCS || engine->id == VCS2);
engine->ctx_desc_template = GEN8_CTX_VALID;
- engine->ctx_desc_template |= GEN8_CTX_ADDRESSING_MODE(dev) <<
- GEN8_CTX_ADDRESSING_MODE_SHIFT;
- if (IS_GEN8(dev))
+ if (IS_GEN8(dev_priv))
engine->ctx_desc_template |= GEN8_CTX_L3LLC_COHERENT;
engine->ctx_desc_template |= GEN8_CTX_PRIVILEGE;
@@ -297,7 +290,7 @@ logical_ring_init_platform_invariants(struct intel_engine_cs *engine)
* descriptor for a pinned context
*
* @ctx: Context to work on
- * @ring: Engine the descriptor will be used with
+ * @engine: Engine the descriptor will be used with
*
* The context descriptor encodes various attributes of a context,
* including its GTT address and some flags. Because it's fairly
@@ -305,62 +298,42 @@ logical_ring_init_platform_invariants(struct intel_engine_cs *engine)
* which remains valid until the context is unpinned.
*
* This is what a descriptor looks like, from LSB to MSB:
- * bits 0-11: flags, GEN8_CTX_* (cached in ctx_desc_template)
+ * bits 0-11: flags, GEN8_CTX_* (cached in ctx_desc_template)
* bits 12-31: LRCA, GTT address of (the HWSP of) this context
- * bits 32-51: ctx ID, a globally unique tag (the LRCA again!)
- * bits 52-63: reserved, may encode the engine ID (for GuC)
+ * bits 32-52: ctx ID, a globally unique tag
+ * bits 53-54: mbz, reserved for use by hardware
+ * bits 55-63: group ID, currently unused and set to 0
*/
static void
-intel_lr_context_descriptor_update(struct intel_context *ctx,
+intel_lr_context_descriptor_update(struct i915_gem_context *ctx,
struct intel_engine_cs *engine)
{
- uint64_t lrca, desc;
+ struct intel_context *ce = &ctx->engine[engine->id];
+ u64 desc;
- lrca = ctx->engine[engine->id].lrc_vma->node.start +
- LRC_PPHWSP_PN * PAGE_SIZE;
+ BUILD_BUG_ON(MAX_CONTEXT_HW_ID > (1<<GEN8_CTX_ID_WIDTH));
- desc = engine->ctx_desc_template; /* bits 0-11 */
- desc |= lrca; /* bits 12-31 */
- desc |= (lrca >> PAGE_SHIFT) << GEN8_CTX_ID_SHIFT; /* bits 32-51 */
+ desc = ctx->desc_template; /* bits 3-4 */
+ desc |= engine->ctx_desc_template; /* bits 0-11 */
+ desc |= ce->lrc_vma->node.start + LRC_PPHWSP_PN * PAGE_SIZE;
+ /* bits 12-31 */
+ desc |= (u64)ctx->hw_id << GEN8_CTX_ID_SHIFT; /* bits 32-52 */
- ctx->engine[engine->id].lrc_desc = desc;
+ ce->lrc_desc = desc;
}
-uint64_t intel_lr_context_descriptor(struct intel_context *ctx,
+uint64_t intel_lr_context_descriptor(struct i915_gem_context *ctx,
struct intel_engine_cs *engine)
{
return ctx->engine[engine->id].lrc_desc;
}
-/**
- * intel_execlists_ctx_id() - get the Execlists Context ID
- * @ctx: Context to get the ID for
- * @ring: Engine to get the ID for
- *
- * Do not confuse with ctx->id! Unfortunately we have a name overload
- * here: the old context ID we pass to userspace as a handler so that
- * they can refer to a context, and the new context ID we pass to the
- * ELSP so that the GPU can inform us of the context status via
- * interrupts.
- *
- * The context ID is a portion of the context descriptor, so we can
- * just extract the required part from the cached descriptor.
- *
- * Return: 20-bits globally unique context ID.
- */
-u32 intel_execlists_ctx_id(struct intel_context *ctx,
- struct intel_engine_cs *engine)
-{
- return intel_lr_context_descriptor(ctx, engine) >> GEN8_CTX_ID_SHIFT;
-}
-
static void execlists_elsp_write(struct drm_i915_gem_request *rq0,
struct drm_i915_gem_request *rq1)
{
struct intel_engine_cs *engine = rq0->engine;
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = rq0->i915;
uint64_t desc[2];
if (rq1) {
@@ -431,6 +404,20 @@ static void execlists_submit_requests(struct drm_i915_gem_request *rq0,
spin_unlock_irq(&dev_priv->uncore.lock);
}
+static inline void execlists_context_status_change(
+ struct drm_i915_gem_request *rq,
+ unsigned long status)
+{
+ /*
+ * Only used when GVT-g is enabled now. When GVT-g is disabled,
+ * The compiler should eliminate this function as dead-code.
+ */
+ if (!IS_ENABLED(CONFIG_DRM_I915_GVT))
+ return;
+
+ atomic_notifier_call_chain(&rq->ctx->status_notifier, status, rq);
+}
+
static void execlists_context_unqueue(struct intel_engine_cs *engine)
{
struct drm_i915_gem_request *req0 = NULL, *req1 = NULL;
@@ -442,7 +429,7 @@ static void execlists_context_unqueue(struct intel_engine_cs *engine)
* If irqs are not active generate a warning as batches that finish
* without the irqs may get lost and a GPU Hang may occur.
*/
- WARN_ON(!intel_irqs_enabled(engine->dev->dev_private));
+ WARN_ON(!intel_irqs_enabled(engine->i915));
/* Try to read in pairs */
list_for_each_entry_safe(cursor, tmp, &engine->execlist_queue,
@@ -453,10 +440,24 @@ static void execlists_context_unqueue(struct intel_engine_cs *engine)
/* Same ctx: ignore first request, as second request
* will update tail past first request's workload */
cursor->elsp_submitted = req0->elsp_submitted;
- list_move_tail(&req0->execlist_link,
- &engine->execlist_retired_req_list);
+ list_del(&req0->execlist_link);
+ i915_gem_request_unreference(req0);
req0 = cursor;
} else {
+ if (IS_ENABLED(CONFIG_DRM_I915_GVT)) {
+ /*
+ * req0 (after merged) ctx requires single
+ * submission, stop picking
+ */
+ if (req0->ctx->execlists_force_single_submission)
+ break;
+ /*
+ * req0 ctx doesn't require single submission,
+ * but next req ctx requires, stop picking
+ */
+ if (cursor->ctx->execlists_force_single_submission)
+ break;
+ }
req1 = cursor;
WARN_ON(req1->elsp_submitted);
break;
@@ -466,6 +467,12 @@ static void execlists_context_unqueue(struct intel_engine_cs *engine)
if (unlikely(!req0))
return;
+ execlists_context_status_change(req0, INTEL_CONTEXT_SCHEDULE_IN);
+
+ if (req1)
+ execlists_context_status_change(req1,
+ INTEL_CONTEXT_SCHEDULE_IN);
+
if (req0->elsp_submitted & engine->idle_lite_restore_wa) {
/*
* WaIdleLiteRestore: make sure we never cause a lite restore
@@ -486,7 +493,7 @@ static void execlists_context_unqueue(struct intel_engine_cs *engine)
}
static unsigned int
-execlists_check_remove_request(struct intel_engine_cs *engine, u32 request_id)
+execlists_check_remove_request(struct intel_engine_cs *engine, u32 ctx_id)
{
struct drm_i915_gem_request *head_req;
@@ -496,19 +503,18 @@ execlists_check_remove_request(struct intel_engine_cs *engine, u32 request_id)
struct drm_i915_gem_request,
execlist_link);
- if (!head_req)
- return 0;
-
- if (unlikely(intel_execlists_ctx_id(head_req->ctx, engine) != request_id))
- return 0;
+ if (WARN_ON(!head_req || (head_req->ctx_hw_id != ctx_id)))
+ return 0;
WARN(head_req->elsp_submitted == 0, "Never submitted head request\n");
if (--head_req->elsp_submitted > 0)
return 0;
- list_move_tail(&head_req->execlist_link,
- &engine->execlist_retired_req_list);
+ execlists_context_status_change(head_req, INTEL_CONTEXT_SCHEDULE_OUT);
+
+ list_del(&head_req->execlist_link);
+ i915_gem_request_unreference(head_req);
return 1;
}
@@ -517,7 +523,7 @@ static u32
get_context_status(struct intel_engine_cs *engine, unsigned int read_pointer,
u32 *context_id)
{
- struct drm_i915_private *dev_priv = engine->dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
u32 status;
read_pointer %= GEN8_CSB_ENTRIES;
@@ -535,7 +541,7 @@ get_context_status(struct intel_engine_cs *engine, unsigned int read_pointer,
/**
* intel_lrc_irq_handler() - handle Context Switch interrupts
- * @engine: Engine Command Streamer to handle.
+ * @data: tasklet handler passed in unsigned long
*
* Check the unread Context Status Buffers and manage the submission of new
* contexts to the ELSP accordingly.
@@ -543,7 +549,7 @@ get_context_status(struct intel_engine_cs *engine, unsigned int read_pointer,
static void intel_lrc_irq_handler(unsigned long data)
{
struct intel_engine_cs *engine = (struct intel_engine_cs *)data;
- struct drm_i915_private *dev_priv = engine->dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
u32 status_pointer;
unsigned int read_pointer, write_pointer;
u32 csb[GEN8_CSB_ENTRIES][2];
@@ -612,11 +618,6 @@ static void execlists_context_queue(struct drm_i915_gem_request *request)
struct drm_i915_gem_request *cursor;
int num_elements = 0;
- if (request->ctx != request->i915->kernel_context)
- intel_lr_context_pin(request->ctx, engine);
-
- i915_gem_request_reference(request);
-
spin_lock_bh(&engine->execlist_lock);
list_for_each_entry(cursor, &engine->execlist_queue, execlist_link)
@@ -633,12 +634,14 @@ static void execlists_context_queue(struct drm_i915_gem_request *request)
if (request->ctx == tail_req->ctx) {
WARN(tail_req->elsp_submitted != 0,
"More than 2 already-submitted reqs queued\n");
- list_move_tail(&tail_req->execlist_link,
- &engine->execlist_retired_req_list);
+ list_del(&tail_req->execlist_link);
+ i915_gem_request_unreference(tail_req);
}
}
+ i915_gem_request_reference(request);
list_add_tail(&request->execlist_link, &engine->execlist_queue);
+ request->ctx_hw_id = request->ctx->hw_id;
if (num_elements == 0)
execlists_context_unqueue(engine);
@@ -698,9 +701,23 @@ static int execlists_move_to_gpu(struct drm_i915_gem_request *req,
int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request)
{
- int ret = 0;
+ struct intel_engine_cs *engine = request->engine;
+ struct intel_context *ce = &request->ctx->engine[engine->id];
+ int ret;
- request->ringbuf = request->ctx->engine[request->engine->id].ringbuf;
+ /* Flush enough space to reduce the likelihood of waiting after
+ * we start building the request - in which case we will just
+ * have to repeat work.
+ */
+ request->reserved_space += EXECLISTS_REQUEST_SIZE;
+
+ if (!ce->state) {
+ ret = execlists_context_deferred_alloc(request->ctx, engine);
+ if (ret)
+ return ret;
+ }
+
+ request->ringbuf = ce->ringbuf;
if (i915.enable_guc_submission) {
/*
@@ -708,16 +725,39 @@ int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request
* going any further, as the i915_add_request() call
* later on mustn't fail ...
*/
- struct intel_guc *guc = &request->i915->guc;
-
- ret = i915_guc_wq_check_space(guc->execbuf_client);
+ ret = i915_guc_wq_check_space(request);
if (ret)
return ret;
}
- if (request->ctx != request->i915->kernel_context)
- ret = intel_lr_context_pin(request->ctx, request->engine);
+ ret = intel_lr_context_pin(request->ctx, engine);
+ if (ret)
+ return ret;
+
+ ret = intel_ring_begin(request, 0);
+ if (ret)
+ goto err_unpin;
+
+ if (!ce->initialised) {
+ ret = engine->init_context(request);
+ if (ret)
+ goto err_unpin;
+
+ ce->initialised = true;
+ }
+
+ /* Note that after this point, we have committed to using
+ * this request as it is being used to both track the
+ * state of engine initialisation and liveness of the
+ * golden renderstate above. Think twice before you try
+ * to cancel/unwind this request now.
+ */
+ request->reserved_space -= EXECLISTS_REQUEST_SIZE;
+ return 0;
+
+err_unpin:
+ intel_lr_context_unpin(request->ctx, engine);
return ret;
}
@@ -734,7 +774,6 @@ static int
intel_logical_ring_advance_and_submit(struct drm_i915_gem_request *request)
{
struct intel_ringbuffer *ringbuf = request->ringbuf;
- struct drm_i915_private *dev_priv = request->i915;
struct intel_engine_cs *engine = request->engine;
intel_logical_ring_advance(ringbuf);
@@ -750,54 +789,28 @@ intel_logical_ring_advance_and_submit(struct drm_i915_gem_request *request)
intel_logical_ring_emit(ringbuf, MI_NOOP);
intel_logical_ring_advance(ringbuf);
- if (intel_engine_stopped(engine))
- return 0;
-
- if (engine->last_context != request->ctx) {
- if (engine->last_context)
- intel_lr_context_unpin(engine->last_context, engine);
- if (request->ctx != request->i915->kernel_context) {
- intel_lr_context_pin(request->ctx, engine);
- engine->last_context = request->ctx;
- } else {
- engine->last_context = NULL;
- }
- }
+ /* We keep the previous context alive until we retire the following
+ * request. This ensures that any the context object is still pinned
+ * for any residual writes the HW makes into it on the context switch
+ * into the next object following the breadcrumb. Otherwise, we may
+ * retire the context too early.
+ */
+ request->previous_context = engine->last_context;
+ engine->last_context = request->ctx;
- if (dev_priv->guc.execbuf_client)
- i915_guc_submit(dev_priv->guc.execbuf_client, request);
+ if (i915.enable_guc_submission)
+ i915_guc_submit(request);
else
execlists_context_queue(request);
return 0;
}
-int intel_logical_ring_reserve_space(struct drm_i915_gem_request *request)
-{
- /*
- * The first call merely notes the reserve request and is common for
- * all back ends. The subsequent localised _begin() call actually
- * ensures that the reservation is available. Without the begin, if
- * the request creator immediately submitted the request without
- * adding any commands to it then there might not actually be
- * sufficient room for the submission commands.
- */
- intel_ring_reserved_space_reserve(request->ringbuf, MIN_SPACE_FOR_ADD_REQUEST);
-
- return intel_ring_begin(request, 0);
-}
-
/**
* execlists_submission() - submit a batchbuffer for execution, Execlists style
- * @dev: DRM device.
- * @file: DRM file.
- * @ring: Engine Command Streamer to submit to.
- * @ctx: Context to employ for this submission.
+ * @params: execbuffer call parameters.
* @args: execbuffer call arguments.
* @vmas: list of vmas.
- * @batch_obj: the batchbuffer to submit.
- * @exec_start: batchbuffer start virtual address pointer.
- * @dispatch_flags: translated execbuffer call flags.
*
* This is the evil twin version of i915_gem_ringbuffer_submission. It abstracts
* away the submission details of the execbuffer ioctl call.
@@ -810,7 +823,7 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
{
struct drm_device *dev = params->dev;
struct intel_engine_cs *engine = params->engine;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_ringbuffer *ringbuf = params->ctx->engine[engine->id].ringbuf;
u64 exec_start;
int instp_mode;
@@ -881,28 +894,18 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
return 0;
}
-void intel_execlists_retire_requests(struct intel_engine_cs *engine)
+void intel_execlists_cancel_requests(struct intel_engine_cs *engine)
{
struct drm_i915_gem_request *req, *tmp;
- struct list_head retired_list;
+ LIST_HEAD(cancel_list);
- WARN_ON(!mutex_is_locked(&engine->dev->struct_mutex));
- if (list_empty(&engine->execlist_retired_req_list))
- return;
+ WARN_ON(!mutex_is_locked(&engine->i915->drm.struct_mutex));
- INIT_LIST_HEAD(&retired_list);
spin_lock_bh(&engine->execlist_lock);
- list_replace_init(&engine->execlist_retired_req_list, &retired_list);
+ list_replace_init(&engine->execlist_queue, &cancel_list);
spin_unlock_bh(&engine->execlist_lock);
- list_for_each_entry_safe(req, tmp, &retired_list, execlist_link) {
- struct intel_context *ctx = req->ctx;
- struct drm_i915_gem_object *ctx_obj =
- ctx->engine[engine->id].state;
-
- if (ctx_obj && (ctx != req->i915->kernel_context))
- intel_lr_context_unpin(ctx, engine);
-
+ list_for_each_entry_safe(req, tmp, &cancel_list, execlist_link) {
list_del(&req->execlist_link);
i915_gem_request_unreference(req);
}
@@ -910,7 +913,7 @@ void intel_execlists_retire_requests(struct intel_engine_cs *engine)
void intel_logical_ring_stop(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = engine->dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
int ret;
if (!intel_engine_initialized(engine))
@@ -923,7 +926,10 @@ void intel_logical_ring_stop(struct intel_engine_cs *engine)
/* TODO: Is this correct with Execlists enabled? */
I915_WRITE_MODE(engine, _MASKED_BIT_ENABLE(STOP_RING));
- if (wait_for((I915_READ_MODE(engine) & MODE_IDLE) != 0, 1000)) {
+ if (intel_wait_for_register(dev_priv,
+ RING_MI_MODE(engine->mmio_base),
+ MODE_IDLE, MODE_IDLE,
+ 1000)) {
DRM_ERROR("%s :timed out trying to stop ring\n", engine->name);
return;
}
@@ -946,25 +952,26 @@ int logical_ring_flush_all_caches(struct drm_i915_gem_request *req)
return 0;
}
-static int intel_lr_context_do_pin(struct intel_context *ctx,
- struct intel_engine_cs *engine)
+static int intel_lr_context_pin(struct i915_gem_context *ctx,
+ struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_i915_gem_object *ctx_obj = ctx->engine[engine->id].state;
- struct intel_ringbuffer *ringbuf = ctx->engine[engine->id].ringbuf;
+ struct drm_i915_private *dev_priv = ctx->i915;
+ struct intel_context *ce = &ctx->engine[engine->id];
void *vaddr;
u32 *lrc_reg_state;
int ret;
- WARN_ON(!mutex_is_locked(&engine->dev->struct_mutex));
+ lockdep_assert_held(&ctx->i915->drm.struct_mutex);
- ret = i915_gem_obj_ggtt_pin(ctx_obj, GEN8_LR_CONTEXT_ALIGN,
- PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
+ if (ce->pin_count++)
+ return 0;
+
+ ret = i915_gem_obj_ggtt_pin(ce->state, GEN8_LR_CONTEXT_ALIGN,
+ PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
if (ret)
- return ret;
+ goto err;
- vaddr = i915_gem_object_pin_map(ctx_obj);
+ vaddr = i915_gem_object_pin_map(ce->state);
if (IS_ERR(vaddr)) {
ret = PTR_ERR(vaddr);
goto unpin_ctx_obj;
@@ -972,65 +979,54 @@ static int intel_lr_context_do_pin(struct intel_context *ctx,
lrc_reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE;
- ret = intel_pin_and_map_ringbuffer_obj(engine->dev, ringbuf);
+ ret = intel_pin_and_map_ringbuffer_obj(dev_priv, ce->ringbuf);
if (ret)
goto unpin_map;
- ctx->engine[engine->id].lrc_vma = i915_gem_obj_to_ggtt(ctx_obj);
+ i915_gem_context_reference(ctx);
+ ce->lrc_vma = i915_gem_obj_to_ggtt(ce->state);
intel_lr_context_descriptor_update(ctx, engine);
- lrc_reg_state[CTX_RING_BUFFER_START+1] = ringbuf->vma->node.start;
- ctx->engine[engine->id].lrc_reg_state = lrc_reg_state;
- ctx_obj->dirty = true;
+
+ lrc_reg_state[CTX_RING_BUFFER_START+1] = ce->ringbuf->vma->node.start;
+ ce->lrc_reg_state = lrc_reg_state;
+ ce->state->dirty = true;
/* Invalidate GuC TLB. */
if (i915.enable_guc_submission)
I915_WRITE(GEN8_GTCR, GEN8_GTCR_INVALIDATE);
- return ret;
+ return 0;
unpin_map:
- i915_gem_object_unpin_map(ctx_obj);
+ i915_gem_object_unpin_map(ce->state);
unpin_ctx_obj:
- i915_gem_object_ggtt_unpin(ctx_obj);
-
+ i915_gem_object_ggtt_unpin(ce->state);
+err:
+ ce->pin_count = 0;
return ret;
}
-static int intel_lr_context_pin(struct intel_context *ctx,
- struct intel_engine_cs *engine)
+void intel_lr_context_unpin(struct i915_gem_context *ctx,
+ struct intel_engine_cs *engine)
{
- int ret = 0;
+ struct intel_context *ce = &ctx->engine[engine->id];
- if (ctx->engine[engine->id].pin_count++ == 0) {
- ret = intel_lr_context_do_pin(ctx, engine);
- if (ret)
- goto reset_pin_count;
+ lockdep_assert_held(&ctx->i915->drm.struct_mutex);
+ GEM_BUG_ON(ce->pin_count == 0);
- i915_gem_context_reference(ctx);
- }
- return ret;
+ if (--ce->pin_count)
+ return;
-reset_pin_count:
- ctx->engine[engine->id].pin_count = 0;
- return ret;
-}
+ intel_unpin_ringbuffer_obj(ce->ringbuf);
-void intel_lr_context_unpin(struct intel_context *ctx,
- struct intel_engine_cs *engine)
-{
- struct drm_i915_gem_object *ctx_obj = ctx->engine[engine->id].state;
+ i915_gem_object_unpin_map(ce->state);
+ i915_gem_object_ggtt_unpin(ce->state);
- WARN_ON(!mutex_is_locked(&ctx->i915->dev->struct_mutex));
- if (--ctx->engine[engine->id].pin_count == 0) {
- i915_gem_object_unpin_map(ctx_obj);
- intel_unpin_ringbuffer_obj(ctx->engine[engine->id].ringbuf);
- i915_gem_object_ggtt_unpin(ctx_obj);
- ctx->engine[engine->id].lrc_vma = NULL;
- ctx->engine[engine->id].lrc_desc = 0;
- ctx->engine[engine->id].lrc_reg_state = NULL;
+ ce->lrc_vma = NULL;
+ ce->lrc_desc = 0;
+ ce->lrc_reg_state = NULL;
- i915_gem_context_unreference(ctx);
- }
+ i915_gem_context_unreference(ctx);
}
static int intel_logical_ring_workarounds_emit(struct drm_i915_gem_request *req)
@@ -1038,9 +1034,7 @@ static int intel_logical_ring_workarounds_emit(struct drm_i915_gem_request *req)
int ret, i;
struct intel_engine_cs *engine = req->engine;
struct intel_ringbuffer *ringbuf = req->ringbuf;
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_workarounds *w = &dev_priv->workarounds;
+ struct i915_workarounds *w = &req->i915->workarounds;
if (w->count == 0)
return 0;
@@ -1103,7 +1097,7 @@ static inline int gen8_emit_flush_coherentl3_wa(struct intel_engine_cs *engine,
uint32_t *const batch,
uint32_t index)
{
- struct drm_i915_private *dev_priv = engine->dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
uint32_t l3sqc4_flush = (0x40400000 | GEN8_LQSC_FLUSH_COHERENT_LINES);
/*
@@ -1165,7 +1159,7 @@ static inline int wa_ctx_end(struct i915_wa_ctx_bb *wa_ctx,
/**
* gen8_init_indirectctx_bb() - initialize indirect ctx batch with WA
*
- * @ring: only applicable for RCS
+ * @engine: only applicable for RCS
* @wa_ctx: structure representing wa_ctx
* offset: specifies start of the batch, should be cache-aligned. This is updated
* with the offset value received as input.
@@ -1202,7 +1196,7 @@ static int gen8_init_indirectctx_bb(struct intel_engine_cs *engine,
wa_ctx_emit(batch, index, MI_ARB_ON_OFF | MI_ARB_DISABLE);
/* WaFlushCoherentL3CacheLinesAtContextSwitch:bdw */
- if (IS_BROADWELL(engine->dev)) {
+ if (IS_BROADWELL(engine->i915)) {
int rc = gen8_emit_flush_coherentl3_wa(engine, batch, index);
if (rc < 0)
return rc;
@@ -1239,7 +1233,7 @@ static int gen8_init_indirectctx_bb(struct intel_engine_cs *engine,
/**
* gen8_init_perctx_bb() - initialize per ctx batch with WA
*
- * @ring: only applicable for RCS
+ * @engine: only applicable for RCS
* @wa_ctx: structure representing wa_ctx
* offset: specifies start of the batch, should be cache-aligned.
* size: size of the batch in DWORDS but HW expects in terms of cachelines
@@ -1274,13 +1268,12 @@ static int gen9_init_indirectctx_bb(struct intel_engine_cs *engine,
uint32_t *offset)
{
int ret;
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS);
/* WaDisableCtxRestoreArbitration:skl,bxt */
- if (IS_SKL_REVID(dev, 0, SKL_REVID_D0) ||
- IS_BXT_REVID(dev, 0, BXT_REVID_A1))
+ if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_D0) ||
+ IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1))
wa_ctx_emit(batch, index, MI_ARB_ON_OFF | MI_ARB_DISABLE);
/* WaFlushCoherentL3CacheLinesAtContextSwitch:skl,bxt */
@@ -1305,6 +1298,31 @@ static int gen9_init_indirectctx_bb(struct intel_engine_cs *engine,
wa_ctx_emit(batch, index, 0);
wa_ctx_emit(batch, index, 0);
}
+
+ /* WaMediaPoolStateCmdInWABB:bxt */
+ if (HAS_POOLED_EU(engine->i915)) {
+ /*
+ * EU pool configuration is setup along with golden context
+ * during context initialization. This value depends on
+ * device type (2x6 or 3x6) and needs to be updated based
+ * on which subslice is disabled especially for 2x6
+ * devices, however it is safe to load default
+ * configuration of 3x6 device instead of masking off
+ * corresponding bits because HW ignores bits of a disabled
+ * subslice and drops down to appropriate config. Please
+ * see render_state_setup() in i915_gem_render_state.c for
+ * possible configurations, to avoid duplication they are
+ * not shown here again.
+ */
+ u32 eu_pool_config = 0x00777000;
+ wa_ctx_emit(batch, index, GEN9_MEDIA_POOL_STATE);
+ wa_ctx_emit(batch, index, GEN9_MEDIA_POOL_ENABLE);
+ wa_ctx_emit(batch, index, eu_pool_config);
+ wa_ctx_emit(batch, index, 0);
+ wa_ctx_emit(batch, index, 0);
+ wa_ctx_emit(batch, index, 0);
+ }
+
/* Pad to end of cacheline */
while (index % CACHELINE_DWORDS)
wa_ctx_emit(batch, index, MI_NOOP);
@@ -1317,12 +1335,11 @@ static int gen9_init_perctx_bb(struct intel_engine_cs *engine,
uint32_t *const batch,
uint32_t *offset)
{
- struct drm_device *dev = engine->dev;
uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS);
/* WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken:skl,bxt */
- if (IS_SKL_REVID(dev, 0, SKL_REVID_B0) ||
- IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
+ if (IS_SKL_REVID(engine->i915, 0, SKL_REVID_B0) ||
+ IS_BXT_REVID(engine->i915, 0, BXT_REVID_A1)) {
wa_ctx_emit(batch, index, MI_LOAD_REGISTER_IMM(1));
wa_ctx_emit_reg(batch, index, GEN9_SLICE_COMMON_ECO_CHICKEN0);
wa_ctx_emit(batch, index,
@@ -1331,7 +1348,7 @@ static int gen9_init_perctx_bb(struct intel_engine_cs *engine,
}
/* WaClearTdlStateAckDirtyBits:bxt */
- if (IS_BXT_REVID(dev, 0, BXT_REVID_B0)) {
+ if (IS_BXT_REVID(engine->i915, 0, BXT_REVID_B0)) {
wa_ctx_emit(batch, index, MI_LOAD_REGISTER_IMM(4));
wa_ctx_emit_reg(batch, index, GEN8_STATE_ACK);
@@ -1350,8 +1367,8 @@ static int gen9_init_perctx_bb(struct intel_engine_cs *engine,
}
/* WaDisableCtxRestoreArbitration:skl,bxt */
- if (IS_SKL_REVID(dev, 0, SKL_REVID_D0) ||
- IS_BXT_REVID(dev, 0, BXT_REVID_A1))
+ if (IS_SKL_REVID(engine->i915, 0, SKL_REVID_D0) ||
+ IS_BXT_REVID(engine->i915, 0, BXT_REVID_A1))
wa_ctx_emit(batch, index, MI_ARB_ON_OFF | MI_ARB_ENABLE);
wa_ctx_emit(batch, index, MI_BATCH_BUFFER_END);
@@ -1363,11 +1380,13 @@ static int lrc_setup_wa_ctx_obj(struct intel_engine_cs *engine, u32 size)
{
int ret;
- engine->wa_ctx.obj = i915_gem_alloc_object(engine->dev,
- PAGE_ALIGN(size));
- if (!engine->wa_ctx.obj) {
+ engine->wa_ctx.obj = i915_gem_object_create(&engine->i915->drm,
+ PAGE_ALIGN(size));
+ if (IS_ERR(engine->wa_ctx.obj)) {
DRM_DEBUG_DRIVER("alloc LRC WA ctx backing obj failed.\n");
- return -ENOMEM;
+ ret = PTR_ERR(engine->wa_ctx.obj);
+ engine->wa_ctx.obj = NULL;
+ return ret;
}
ret = i915_gem_obj_ggtt_pin(engine->wa_ctx.obj, PAGE_SIZE, 0);
@@ -1401,9 +1420,9 @@ static int intel_init_workaround_bb(struct intel_engine_cs *engine)
WARN_ON(engine->id != RCS);
/* update this when WA for higher Gen are added */
- if (INTEL_INFO(engine->dev)->gen > 9) {
+ if (INTEL_GEN(engine->i915) > 9) {
DRM_ERROR("WA batch buffer is not initialized for Gen%d\n",
- INTEL_INFO(engine->dev)->gen);
+ INTEL_GEN(engine->i915));
return 0;
}
@@ -1423,7 +1442,7 @@ static int intel_init_workaround_bb(struct intel_engine_cs *engine)
batch = kmap_atomic(page);
offset = 0;
- if (INTEL_INFO(engine->dev)->gen == 8) {
+ if (IS_GEN8(engine->i915)) {
ret = gen8_init_indirectctx_bb(engine,
&wa_ctx->indirect_ctx,
batch,
@@ -1437,7 +1456,7 @@ static int intel_init_workaround_bb(struct intel_engine_cs *engine)
&offset);
if (ret)
goto out;
- } else if (INTEL_INFO(engine->dev)->gen == 9) {
+ } else if (IS_GEN9(engine->i915)) {
ret = gen9_init_indirectctx_bb(engine,
&wa_ctx->indirect_ctx,
batch,
@@ -1463,7 +1482,7 @@ out:
static void lrc_init_hws(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = engine->dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
I915_WRITE(RING_HWS_PGA(engine->mmio_base),
(u32)engine->status_page.gfx_addr);
@@ -1472,8 +1491,7 @@ static void lrc_init_hws(struct intel_engine_cs *engine)
static int gen8_init_common_ring(struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
unsigned int next_context_status_buffer_hw;
lrc_init_hws(engine);
@@ -1520,8 +1538,7 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine)
static int gen8_init_render_ring(struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = engine->i915;
int ret;
ret = gen8_init_common_ring(engine);
@@ -1598,7 +1615,7 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req,
if (req->ctx->ppgtt &&
(intel_engine_flag(req->engine) & req->ctx->ppgtt->pd_dirty_rings)) {
if (!USES_FULL_48BIT_PPGTT(req->i915) &&
- !intel_vgpu_active(req->i915->dev)) {
+ !intel_vgpu_active(req->i915)) {
ret = intel_logical_ring_emit_pdps(req);
if (ret)
return ret;
@@ -1624,38 +1641,18 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req,
return 0;
}
-static bool gen8_logical_ring_get_irq(struct intel_engine_cs *engine)
+static void gen8_logical_ring_enable_irq(struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long flags;
-
- if (WARN_ON(!intel_irqs_enabled(dev_priv)))
- return false;
-
- spin_lock_irqsave(&dev_priv->irq_lock, flags);
- if (engine->irq_refcount++ == 0) {
- I915_WRITE_IMR(engine,
- ~(engine->irq_enable_mask | engine->irq_keep_mask));
- POSTING_READ(RING_IMR(engine->mmio_base));
- }
- spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
-
- return true;
+ struct drm_i915_private *dev_priv = engine->i915;
+ I915_WRITE_IMR(engine,
+ ~(engine->irq_enable_mask | engine->irq_keep_mask));
+ POSTING_READ_FW(RING_IMR(engine->mmio_base));
}
-static void gen8_logical_ring_put_irq(struct intel_engine_cs *engine)
+static void gen8_logical_ring_disable_irq(struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long flags;
-
- spin_lock_irqsave(&dev_priv->irq_lock, flags);
- if (--engine->irq_refcount == 0) {
- I915_WRITE_IMR(engine, ~engine->irq_keep_mask);
- POSTING_READ(RING_IMR(engine->mmio_base));
- }
- spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
+ struct drm_i915_private *dev_priv = engine->i915;
+ I915_WRITE_IMR(engine, ~engine->irq_keep_mask);
}
static int gen8_emit_flush(struct drm_i915_gem_request *request,
@@ -1664,8 +1661,7 @@ static int gen8_emit_flush(struct drm_i915_gem_request *request,
{
struct intel_ringbuffer *ringbuf = request->ringbuf;
struct intel_engine_cs *engine = ringbuf->engine;
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = request->i915;
uint32_t cmd;
int ret;
@@ -1734,7 +1730,7 @@ static int gen8_emit_flush_render(struct drm_i915_gem_request *request,
* On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL
* pipe control.
*/
- if (IS_GEN9(engine->dev))
+ if (IS_GEN9(request->i915))
vf_flush_wa = true;
/* WaForGAMHang:kbl */
@@ -1793,16 +1789,6 @@ static int gen8_emit_flush_render(struct drm_i915_gem_request *request,
return 0;
}
-static u32 gen8_get_seqno(struct intel_engine_cs *engine)
-{
- return intel_read_status_page(engine, I915_GEM_HWS_INDEX);
-}
-
-static void gen8_set_seqno(struct intel_engine_cs *engine, u32 seqno)
-{
- intel_write_status_page(engine, I915_GEM_HWS_INDEX, seqno);
-}
-
static void bxt_a_seqno_barrier(struct intel_engine_cs *engine)
{
/*
@@ -1818,14 +1804,6 @@ static void bxt_a_seqno_barrier(struct intel_engine_cs *engine)
intel_flush_status_page(engine, I915_GEM_HWS_INDEX);
}
-static void bxt_a_set_seqno(struct intel_engine_cs *engine, u32 seqno)
-{
- intel_write_status_page(engine, I915_GEM_HWS_INDEX, seqno);
-
- /* See bxt_a_get_seqno() explaining the reason for the clflush. */
- intel_flush_status_page(engine, I915_GEM_HWS_INDEX);
-}
-
/*
* Reserve space for 2 NOOPs at the end of each request to be
* used as a workaround for not being allowed to do lite
@@ -1833,11 +1811,6 @@ static void bxt_a_set_seqno(struct intel_engine_cs *engine, u32 seqno)
*/
#define WA_TAIL_DWORDS 2
-static inline u32 hws_seqno_address(struct intel_engine_cs *engine)
-{
- return engine->status_page.gfx_addr + I915_GEM_HWS_INDEX_ADDR;
-}
-
static int gen8_emit_request(struct drm_i915_gem_request *request)
{
struct intel_ringbuffer *ringbuf = request->ringbuf;
@@ -1853,10 +1826,10 @@ static int gen8_emit_request(struct drm_i915_gem_request *request)
intel_logical_ring_emit(ringbuf,
(MI_FLUSH_DW + 1) | MI_FLUSH_DW_OP_STOREDW);
intel_logical_ring_emit(ringbuf,
- hws_seqno_address(request->engine) |
+ intel_hws_seqno_address(request->engine) |
MI_FLUSH_DW_USE_GTT);
intel_logical_ring_emit(ringbuf, 0);
- intel_logical_ring_emit(ringbuf, i915_gem_request_get_seqno(request));
+ intel_logical_ring_emit(ringbuf, request->seqno);
intel_logical_ring_emit(ringbuf, MI_USER_INTERRUPT);
intel_logical_ring_emit(ringbuf, MI_NOOP);
return intel_logical_ring_advance_and_submit(request);
@@ -1883,7 +1856,8 @@ static int gen8_emit_request_render(struct drm_i915_gem_request *request)
(PIPE_CONTROL_GLOBAL_GTT_IVB |
PIPE_CONTROL_CS_STALL |
PIPE_CONTROL_QW_WRITE));
- intel_logical_ring_emit(ringbuf, hws_seqno_address(request->engine));
+ intel_logical_ring_emit(ringbuf,
+ intel_hws_seqno_address(request->engine));
intel_logical_ring_emit(ringbuf, 0);
intel_logical_ring_emit(ringbuf, i915_gem_request_get_seqno(request));
/* We're thrashing one dword of HWS. */
@@ -1945,7 +1919,7 @@ static int gen8_init_rcs_context(struct drm_i915_gem_request *req)
/**
* intel_logical_ring_cleanup() - deallocate the Engine Command Streamer
*
- * @ring: Engine Command Streamer.
+ * @engine: Engine Command Streamer.
*
*/
void intel_logical_ring_cleanup(struct intel_engine_cs *engine)
@@ -1962,7 +1936,7 @@ void intel_logical_ring_cleanup(struct intel_engine_cs *engine)
if (WARN_ON(test_bit(TASKLET_STATE_SCHED, &engine->irq_tasklet.state)))
tasklet_kill(&engine->irq_tasklet);
- dev_priv = engine->dev->dev_private;
+ dev_priv = engine->i915;
if (engine->buffer) {
intel_logical_ring_stop(engine);
@@ -1975,36 +1949,34 @@ void intel_logical_ring_cleanup(struct intel_engine_cs *engine)
i915_cmd_parser_fini_ring(engine);
i915_gem_batch_pool_fini(&engine->batch_pool);
+ intel_engine_fini_breadcrumbs(engine);
+
if (engine->status_page.obj) {
i915_gem_object_unpin_map(engine->status_page.obj);
engine->status_page.obj = NULL;
}
+ intel_lr_context_unpin(dev_priv->kernel_context, engine);
engine->idle_lite_restore_wa = 0;
engine->disable_lite_restore_wa = false;
engine->ctx_desc_template = 0;
lrc_destroy_wa_ctx_obj(engine);
- engine->dev = NULL;
+ engine->i915 = NULL;
}
static void
-logical_ring_default_vfuncs(struct drm_device *dev,
- struct intel_engine_cs *engine)
+logical_ring_default_vfuncs(struct intel_engine_cs *engine)
{
/* Default vfuncs which can be overriden by each engine. */
engine->init_hw = gen8_init_common_ring;
engine->emit_request = gen8_emit_request;
engine->emit_flush = gen8_emit_flush;
- engine->irq_get = gen8_logical_ring_get_irq;
- engine->irq_put = gen8_logical_ring_put_irq;
+ engine->irq_enable = gen8_logical_ring_enable_irq;
+ engine->irq_disable = gen8_logical_ring_disable_irq;
engine->emit_bb_start = gen8_emit_bb_start;
- engine->get_seqno = gen8_get_seqno;
- engine->set_seqno = gen8_set_seqno;
- if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
+ if (IS_BXT_REVID(engine->i915, 0, BXT_REVID_A1))
engine->irq_seqno_barrier = bxt_a_seqno_barrier;
- engine->set_seqno = bxt_a_set_seqno;
- }
}
static inline void
@@ -2033,60 +2005,28 @@ lrc_setup_hws(struct intel_engine_cs *engine,
}
static int
-logical_ring_init(struct drm_device *dev, struct intel_engine_cs *engine)
+logical_ring_init(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_context *dctx = dev_priv->kernel_context;
- enum forcewake_domains fw_domains;
+ struct i915_gem_context *dctx = engine->i915->kernel_context;
int ret;
- /* Intentionally left blank. */
- engine->buffer = NULL;
-
- engine->dev = dev;
- INIT_LIST_HEAD(&engine->active_list);
- INIT_LIST_HEAD(&engine->request_list);
- i915_gem_batch_pool_init(dev, &engine->batch_pool);
- init_waitqueue_head(&engine->irq_queue);
-
- INIT_LIST_HEAD(&engine->buffers);
- INIT_LIST_HEAD(&engine->execlist_queue);
- INIT_LIST_HEAD(&engine->execlist_retired_req_list);
- spin_lock_init(&engine->execlist_lock);
-
- tasklet_init(&engine->irq_tasklet,
- intel_lrc_irq_handler, (unsigned long)engine);
-
- logical_ring_init_platform_invariants(engine);
-
- fw_domains = intel_uncore_forcewake_for_reg(dev_priv,
- RING_ELSP(engine),
- FW_REG_WRITE);
-
- fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
- RING_CONTEXT_STATUS_PTR(engine),
- FW_REG_READ | FW_REG_WRITE);
-
- fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
- RING_CONTEXT_STATUS_BUF_BASE(engine),
- FW_REG_READ);
-
- engine->fw_domains = fw_domains;
+ ret = intel_engine_init_breadcrumbs(engine);
+ if (ret)
+ goto error;
ret = i915_cmd_parser_init_ring(engine);
if (ret)
goto error;
- ret = intel_lr_context_deferred_alloc(dctx, engine);
+ ret = execlists_context_deferred_alloc(dctx, engine);
if (ret)
goto error;
/* As this is the default context, always pin it */
- ret = intel_lr_context_do_pin(dctx, engine);
+ ret = intel_lr_context_pin(dctx, engine);
if (ret) {
- DRM_ERROR(
- "Failed to pin and map ringbuffer %s: %d\n",
- engine->name, ret);
+ DRM_ERROR("Failed to pin context for %s: %d\n",
+ engine->name, ret);
goto error;
}
@@ -2104,26 +2044,16 @@ error:
return ret;
}
-static int logical_render_ring_init(struct drm_device *dev)
+static int logical_render_ring_init(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_engine_cs *engine = &dev_priv->engine[RCS];
+ struct drm_i915_private *dev_priv = engine->i915;
int ret;
- engine->name = "render ring";
- engine->id = RCS;
- engine->exec_id = I915_EXEC_RENDER;
- engine->guc_id = GUC_RENDER_ENGINE;
- engine->mmio_base = RENDER_RING_BASE;
-
- logical_ring_default_irqs(engine, GEN8_RCS_IRQ_SHIFT);
- if (HAS_L3_DPF(dev))
+ if (HAS_L3_DPF(dev_priv))
engine->irq_keep_mask |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
- logical_ring_default_vfuncs(dev, engine);
-
/* Override some for render ring. */
- if (INTEL_INFO(dev)->gen >= 9)
+ if (INTEL_GEN(dev_priv) >= 9)
engine->init_hw = gen9_init_render_ring;
else
engine->init_hw = gen8_init_render_ring;
@@ -2132,9 +2062,7 @@ static int logical_render_ring_init(struct drm_device *dev)
engine->emit_flush = gen8_emit_flush_render;
engine->emit_request = gen8_emit_request_render;
- engine->dev = dev;
-
- ret = intel_init_pipe_control(engine);
+ ret = intel_init_pipe_control(engine, 4096);
if (ret)
return ret;
@@ -2149,7 +2077,7 @@ static int logical_render_ring_init(struct drm_device *dev)
ret);
}
- ret = logical_ring_init(dev, engine);
+ ret = logical_ring_init(engine);
if (ret) {
lrc_destroy_wa_ctx_obj(engine);
}
@@ -2157,133 +2085,164 @@ static int logical_render_ring_init(struct drm_device *dev)
return ret;
}
-static int logical_bsd_ring_init(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_engine_cs *engine = &dev_priv->engine[VCS];
-
- engine->name = "bsd ring";
- engine->id = VCS;
- engine->exec_id = I915_EXEC_BSD;
- engine->guc_id = GUC_VIDEO_ENGINE;
- engine->mmio_base = GEN6_BSD_RING_BASE;
-
- logical_ring_default_irqs(engine, GEN8_VCS1_IRQ_SHIFT);
- logical_ring_default_vfuncs(dev, engine);
-
- return logical_ring_init(dev, engine);
-}
+static const struct logical_ring_info {
+ const char *name;
+ unsigned exec_id;
+ unsigned guc_id;
+ u32 mmio_base;
+ unsigned irq_shift;
+ int (*init)(struct intel_engine_cs *engine);
+} logical_rings[] = {
+ [RCS] = {
+ .name = "render ring",
+ .exec_id = I915_EXEC_RENDER,
+ .guc_id = GUC_RENDER_ENGINE,
+ .mmio_base = RENDER_RING_BASE,
+ .irq_shift = GEN8_RCS_IRQ_SHIFT,
+ .init = logical_render_ring_init,
+ },
+ [BCS] = {
+ .name = "blitter ring",
+ .exec_id = I915_EXEC_BLT,
+ .guc_id = GUC_BLITTER_ENGINE,
+ .mmio_base = BLT_RING_BASE,
+ .irq_shift = GEN8_BCS_IRQ_SHIFT,
+ .init = logical_ring_init,
+ },
+ [VCS] = {
+ .name = "bsd ring",
+ .exec_id = I915_EXEC_BSD,
+ .guc_id = GUC_VIDEO_ENGINE,
+ .mmio_base = GEN6_BSD_RING_BASE,
+ .irq_shift = GEN8_VCS1_IRQ_SHIFT,
+ .init = logical_ring_init,
+ },
+ [VCS2] = {
+ .name = "bsd2 ring",
+ .exec_id = I915_EXEC_BSD,
+ .guc_id = GUC_VIDEO_ENGINE2,
+ .mmio_base = GEN8_BSD2_RING_BASE,
+ .irq_shift = GEN8_VCS2_IRQ_SHIFT,
+ .init = logical_ring_init,
+ },
+ [VECS] = {
+ .name = "video enhancement ring",
+ .exec_id = I915_EXEC_VEBOX,
+ .guc_id = GUC_VIDEOENHANCE_ENGINE,
+ .mmio_base = VEBOX_RING_BASE,
+ .irq_shift = GEN8_VECS_IRQ_SHIFT,
+ .init = logical_ring_init,
+ },
+};
-static int logical_bsd2_ring_init(struct drm_device *dev)
+static struct intel_engine_cs *
+logical_ring_setup(struct drm_i915_private *dev_priv, enum intel_engine_id id)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_engine_cs *engine = &dev_priv->engine[VCS2];
+ const struct logical_ring_info *info = &logical_rings[id];
+ struct intel_engine_cs *engine = &dev_priv->engine[id];
+ enum forcewake_domains fw_domains;
- engine->name = "bsd2 ring";
- engine->id = VCS2;
- engine->exec_id = I915_EXEC_BSD;
- engine->guc_id = GUC_VIDEO_ENGINE2;
- engine->mmio_base = GEN8_BSD2_RING_BASE;
+ engine->id = id;
+ engine->name = info->name;
+ engine->exec_id = info->exec_id;
+ engine->guc_id = info->guc_id;
+ engine->mmio_base = info->mmio_base;
- logical_ring_default_irqs(engine, GEN8_VCS2_IRQ_SHIFT);
- logical_ring_default_vfuncs(dev, engine);
+ engine->i915 = dev_priv;
- return logical_ring_init(dev, engine);
-}
+ /* Intentionally left blank. */
+ engine->buffer = NULL;
-static int logical_blt_ring_init(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_engine_cs *engine = &dev_priv->engine[BCS];
+ fw_domains = intel_uncore_forcewake_for_reg(dev_priv,
+ RING_ELSP(engine),
+ FW_REG_WRITE);
- engine->name = "blitter ring";
- engine->id = BCS;
- engine->exec_id = I915_EXEC_BLT;
- engine->guc_id = GUC_BLITTER_ENGINE;
- engine->mmio_base = BLT_RING_BASE;
+ fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
+ RING_CONTEXT_STATUS_PTR(engine),
+ FW_REG_READ | FW_REG_WRITE);
- logical_ring_default_irqs(engine, GEN8_BCS_IRQ_SHIFT);
- logical_ring_default_vfuncs(dev, engine);
+ fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
+ RING_CONTEXT_STATUS_BUF_BASE(engine),
+ FW_REG_READ);
- return logical_ring_init(dev, engine);
-}
+ engine->fw_domains = fw_domains;
-static int logical_vebox_ring_init(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_engine_cs *engine = &dev_priv->engine[VECS];
+ INIT_LIST_HEAD(&engine->active_list);
+ INIT_LIST_HEAD(&engine->request_list);
+ INIT_LIST_HEAD(&engine->buffers);
+ INIT_LIST_HEAD(&engine->execlist_queue);
+ spin_lock_init(&engine->execlist_lock);
- engine->name = "video enhancement ring";
- engine->id = VECS;
- engine->exec_id = I915_EXEC_VEBOX;
- engine->guc_id = GUC_VIDEOENHANCE_ENGINE;
- engine->mmio_base = VEBOX_RING_BASE;
+ tasklet_init(&engine->irq_tasklet,
+ intel_lrc_irq_handler, (unsigned long)engine);
- logical_ring_default_irqs(engine, GEN8_VECS_IRQ_SHIFT);
- logical_ring_default_vfuncs(dev, engine);
+ logical_ring_init_platform_invariants(engine);
+ logical_ring_default_vfuncs(engine);
+ logical_ring_default_irqs(engine, info->irq_shift);
+
+ intel_engine_init_hangcheck(engine);
+ i915_gem_batch_pool_init(&dev_priv->drm, &engine->batch_pool);
- return logical_ring_init(dev, engine);
+ return engine;
}
/**
* intel_logical_rings_init() - allocate, populate and init the Engine Command Streamers
* @dev: DRM device.
*
- * This function inits the engines for an Execlists submission style (the equivalent in the
- * legacy ringbuffer submission world would be i915_gem_init_engines). It does it only for
- * those engines that are present in the hardware.
+ * This function inits the engines for an Execlists submission style (the
+ * equivalent in the legacy ringbuffer submission world would be
+ * i915_gem_init_engines). It does it only for those engines that are present in
+ * the hardware.
*
* Return: non-zero if the initialization failed.
*/
int intel_logical_rings_init(struct drm_device *dev)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ unsigned int mask = 0;
+ unsigned int i;
int ret;
- ret = logical_render_ring_init(dev);
- if (ret)
- return ret;
+ WARN_ON(INTEL_INFO(dev_priv)->ring_mask &
+ GENMASK(sizeof(mask) * BITS_PER_BYTE - 1, I915_NUM_ENGINES));
- if (HAS_BSD(dev)) {
- ret = logical_bsd_ring_init(dev);
- if (ret)
- goto cleanup_render_ring;
- }
+ for (i = 0; i < ARRAY_SIZE(logical_rings); i++) {
+ if (!HAS_ENGINE(dev_priv, i))
+ continue;
- if (HAS_BLT(dev)) {
- ret = logical_blt_ring_init(dev);
- if (ret)
- goto cleanup_bsd_ring;
- }
+ if (!logical_rings[i].init)
+ continue;
- if (HAS_VEBOX(dev)) {
- ret = logical_vebox_ring_init(dev);
+ ret = logical_rings[i].init(logical_ring_setup(dev_priv, i));
if (ret)
- goto cleanup_blt_ring;
+ goto cleanup;
+
+ mask |= ENGINE_MASK(i);
}
- if (HAS_BSD2(dev)) {
- ret = logical_bsd2_ring_init(dev);
- if (ret)
- goto cleanup_vebox_ring;
+ /*
+ * Catch failures to update logical_rings table when the new engines
+ * are added to the driver by a warning and disabling the forgotten
+ * engines.
+ */
+ if (WARN_ON(mask != INTEL_INFO(dev_priv)->ring_mask)) {
+ struct intel_device_info *info =
+ (struct intel_device_info *)&dev_priv->info;
+ info->ring_mask = mask;
}
return 0;
-cleanup_vebox_ring:
- intel_logical_ring_cleanup(&dev_priv->engine[VECS]);
-cleanup_blt_ring:
- intel_logical_ring_cleanup(&dev_priv->engine[BCS]);
-cleanup_bsd_ring:
- intel_logical_ring_cleanup(&dev_priv->engine[VCS]);
-cleanup_render_ring:
- intel_logical_ring_cleanup(&dev_priv->engine[RCS]);
+cleanup:
+ for (i = 0; i < I915_NUM_ENGINES; i++)
+ intel_logical_ring_cleanup(&dev_priv->engine[i]);
return ret;
}
static u32
-make_rpcs(struct drm_device *dev)
+make_rpcs(struct drm_i915_private *dev_priv)
{
u32 rpcs = 0;
@@ -2291,7 +2250,7 @@ make_rpcs(struct drm_device *dev)
* No explicit RPCS request is needed to ensure full
* slice/subslice/EU enablement prior to Gen9.
*/
- if (INTEL_INFO(dev)->gen < 9)
+ if (INTEL_GEN(dev_priv) < 9)
return 0;
/*
@@ -2300,24 +2259,24 @@ make_rpcs(struct drm_device *dev)
* must make an explicit request through RPCS for full
* enablement.
*/
- if (INTEL_INFO(dev)->has_slice_pg) {
+ if (INTEL_INFO(dev_priv)->has_slice_pg) {
rpcs |= GEN8_RPCS_S_CNT_ENABLE;
- rpcs |= INTEL_INFO(dev)->slice_total <<
+ rpcs |= INTEL_INFO(dev_priv)->slice_total <<
GEN8_RPCS_S_CNT_SHIFT;
rpcs |= GEN8_RPCS_ENABLE;
}
- if (INTEL_INFO(dev)->has_subslice_pg) {
+ if (INTEL_INFO(dev_priv)->has_subslice_pg) {
rpcs |= GEN8_RPCS_SS_CNT_ENABLE;
- rpcs |= INTEL_INFO(dev)->subslice_per_slice <<
+ rpcs |= INTEL_INFO(dev_priv)->subslice_per_slice <<
GEN8_RPCS_SS_CNT_SHIFT;
rpcs |= GEN8_RPCS_ENABLE;
}
- if (INTEL_INFO(dev)->has_eu_pg) {
- rpcs |= INTEL_INFO(dev)->eu_per_subslice <<
+ if (INTEL_INFO(dev_priv)->has_eu_pg) {
+ rpcs |= INTEL_INFO(dev_priv)->eu_per_subslice <<
GEN8_RPCS_EU_MIN_SHIFT;
- rpcs |= INTEL_INFO(dev)->eu_per_subslice <<
+ rpcs |= INTEL_INFO(dev_priv)->eu_per_subslice <<
GEN8_RPCS_EU_MAX_SHIFT;
rpcs |= GEN8_RPCS_ENABLE;
}
@@ -2329,9 +2288,9 @@ static u32 intel_lr_indirect_ctx_offset(struct intel_engine_cs *engine)
{
u32 indirect_ctx_offset;
- switch (INTEL_INFO(engine->dev)->gen) {
+ switch (INTEL_GEN(engine->i915)) {
default:
- MISSING_CASE(INTEL_INFO(engine->dev)->gen);
+ MISSING_CASE(INTEL_GEN(engine->i915));
/* fall through */
case 9:
indirect_ctx_offset =
@@ -2347,13 +2306,12 @@ static u32 intel_lr_indirect_ctx_offset(struct intel_engine_cs *engine)
}
static int
-populate_lr_context(struct intel_context *ctx,
+populate_lr_context(struct i915_gem_context *ctx,
struct drm_i915_gem_object *ctx_obj,
struct intel_engine_cs *engine,
struct intel_ringbuffer *ringbuf)
{
- struct drm_device *dev = engine->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = ctx->i915;
struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
void *vaddr;
u32 *reg_state;
@@ -2391,7 +2349,7 @@ populate_lr_context(struct intel_context *ctx,
RING_CONTEXT_CONTROL(engine),
_MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH |
CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT |
- (HAS_RESOURCE_STREAMER(dev) ?
+ (HAS_RESOURCE_STREAMER(dev_priv) ?
CTX_CTRL_RS_CTX_ENABLE : 0)));
ASSIGN_CTX_REG(reg_state, CTX_RING_HEAD, RING_HEAD(engine->mmio_base),
0);
@@ -2480,7 +2438,7 @@ populate_lr_context(struct intel_context *ctx,
if (engine->id == RCS) {
reg_state[CTX_LRI_HEADER_2] = MI_LOAD_REGISTER_IMM(1);
ASSIGN_CTX_REG(reg_state, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE,
- make_rpcs(dev));
+ make_rpcs(dev_priv));
}
i915_gem_object_unpin_map(ctx_obj);
@@ -2489,39 +2447,8 @@ populate_lr_context(struct intel_context *ctx,
}
/**
- * intel_lr_context_free() - free the LRC specific bits of a context
- * @ctx: the LR context to free.
- *
- * The real context freeing is done in i915_gem_context_free: this only
- * takes care of the bits that are LRC related: the per-engine backing
- * objects and the logical ringbuffer.
- */
-void intel_lr_context_free(struct intel_context *ctx)
-{
- int i;
-
- for (i = I915_NUM_ENGINES; --i >= 0; ) {
- struct intel_ringbuffer *ringbuf = ctx->engine[i].ringbuf;
- struct drm_i915_gem_object *ctx_obj = ctx->engine[i].state;
-
- if (!ctx_obj)
- continue;
-
- if (ctx == ctx->i915->kernel_context) {
- intel_unpin_ringbuffer_obj(ringbuf);
- i915_gem_object_ggtt_unpin(ctx_obj);
- i915_gem_object_unpin_map(ctx_obj);
- }
-
- WARN_ON(ctx->engine[i].pin_count);
- intel_ringbuffer_free(ringbuf);
- drm_gem_object_unreference(&ctx_obj->base);
- }
-}
-
-/**
* intel_lr_context_size() - return the size of the context for an engine
- * @ring: which engine to find the context size for
+ * @engine: which engine to find the context size for
*
* Each engine may require a different amount of space for a context image,
* so when allocating (or copying) an image, this function can be used to
@@ -2537,11 +2464,11 @@ uint32_t intel_lr_context_size(struct intel_engine_cs *engine)
{
int ret = 0;
- WARN_ON(INTEL_INFO(engine->dev)->gen < 8);
+ WARN_ON(INTEL_GEN(engine->i915) < 8);
switch (engine->id) {
case RCS:
- if (INTEL_INFO(engine->dev)->gen >= 9)
+ if (INTEL_GEN(engine->i915) >= 9)
ret = GEN9_LR_CONTEXT_RENDER_SIZE;
else
ret = GEN8_LR_CONTEXT_RENDER_SIZE;
@@ -2558,9 +2485,9 @@ uint32_t intel_lr_context_size(struct intel_engine_cs *engine)
}
/**
- * intel_lr_context_deferred_alloc() - create the LRC specific bits of a context
+ * execlists_context_deferred_alloc() - create the LRC specific bits of a context
* @ctx: LR context to create.
- * @ring: engine to be used with the context.
+ * @engine: engine to be used with the context.
*
* This function can be called more than once, with different engines, if we plan
* to use the context with them. The context backing objects and the ringbuffers
@@ -2570,31 +2497,29 @@ uint32_t intel_lr_context_size(struct intel_engine_cs *engine)
*
* Return: non-zero on error.
*/
-
-int intel_lr_context_deferred_alloc(struct intel_context *ctx,
- struct intel_engine_cs *engine)
+static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
+ struct intel_engine_cs *engine)
{
- struct drm_device *dev = engine->dev;
struct drm_i915_gem_object *ctx_obj;
+ struct intel_context *ce = &ctx->engine[engine->id];
uint32_t context_size;
struct intel_ringbuffer *ringbuf;
int ret;
- WARN_ON(ctx->legacy_hw_ctx.rcs_state != NULL);
- WARN_ON(ctx->engine[engine->id].state);
+ WARN_ON(ce->state);
context_size = round_up(intel_lr_context_size(engine), 4096);
/* One extra page as the sharing data between driver and GuC */
context_size += PAGE_SIZE * LRC_PPHWSP_PN;
- ctx_obj = i915_gem_alloc_object(dev, context_size);
- if (!ctx_obj) {
+ ctx_obj = i915_gem_object_create(&ctx->i915->drm, context_size);
+ if (IS_ERR(ctx_obj)) {
DRM_DEBUG_DRIVER("Alloc LRC backing obj failed.\n");
- return -ENOMEM;
+ return PTR_ERR(ctx_obj);
}
- ringbuf = intel_engine_create_ringbuffer(engine, 4 * PAGE_SIZE);
+ ringbuf = intel_engine_create_ringbuffer(engine, ctx->ring_size);
if (IS_ERR(ringbuf)) {
ret = PTR_ERR(ringbuf);
goto error_deref_obj;
@@ -2606,48 +2531,29 @@ int intel_lr_context_deferred_alloc(struct intel_context *ctx,
goto error_ringbuf;
}
- ctx->engine[engine->id].ringbuf = ringbuf;
- ctx->engine[engine->id].state = ctx_obj;
+ ce->ringbuf = ringbuf;
+ ce->state = ctx_obj;
+ ce->initialised = engine->init_context == NULL;
- if (ctx != ctx->i915->kernel_context && engine->init_context) {
- struct drm_i915_gem_request *req;
-
- req = i915_gem_request_alloc(engine, ctx);
- if (IS_ERR(req)) {
- ret = PTR_ERR(req);
- DRM_ERROR("ring create req: %d\n", ret);
- goto error_ringbuf;
- }
-
- ret = engine->init_context(req);
- i915_add_request_no_flush(req);
- if (ret) {
- DRM_ERROR("ring init context: %d\n",
- ret);
- goto error_ringbuf;
- }
- }
return 0;
error_ringbuf:
intel_ringbuffer_free(ringbuf);
error_deref_obj:
drm_gem_object_unreference(&ctx_obj->base);
- ctx->engine[engine->id].ringbuf = NULL;
- ctx->engine[engine->id].state = NULL;
+ ce->ringbuf = NULL;
+ ce->state = NULL;
return ret;
}
void intel_lr_context_reset(struct drm_i915_private *dev_priv,
- struct intel_context *ctx)
+ struct i915_gem_context *ctx)
{
struct intel_engine_cs *engine;
for_each_engine(engine, dev_priv) {
- struct drm_i915_gem_object *ctx_obj =
- ctx->engine[engine->id].state;
- struct intel_ringbuffer *ringbuf =
- ctx->engine[engine->id].ringbuf;
+ struct intel_context *ce = &ctx->engine[engine->id];
+ struct drm_i915_gem_object *ctx_obj = ce->state;
void *vaddr;
uint32_t *reg_state;
@@ -2666,7 +2572,7 @@ void intel_lr_context_reset(struct drm_i915_private *dev_priv,
i915_gem_object_unpin_map(ctx_obj);
- ringbuf->head = 0;
- ringbuf->tail = 0;
+ ce->ringbuf->head = 0;
+ ce->ringbuf->tail = 0;
}
}
generated by cgit (git 2.34.1) at 2024-06-14 15:34:48 +0000