#define GEN8_CTX_L3LLC_COHERENT (1<<5)
#define GEN8_CTX_PRIVILEGE (1<<8)
-#define ASSIGN_CTX_PDP(ppgtt, reg_state, n) { \
+#define ASSIGN_CTX_REG(reg_state, pos, reg, val) do { \
+ (reg_state)[(pos)+0] = i915_mmio_reg_offset(reg); \
+ (reg_state)[(pos)+1] = (val); \
+} while (0)
+
+#define ASSIGN_CTX_PDP(ppgtt, reg_state, n) do { \
const u64 _addr = i915_page_dir_dma_addr((ppgtt), (n)); \
reg_state[CTX_PDP ## n ## _UDW+1] = upper_32_bits(_addr); \
reg_state[CTX_PDP ## n ## _LDW+1] = lower_32_bits(_addr); \
-}
+} while (0)
+
+#define ASSIGN_CTX_PML4(ppgtt, reg_state) do { \
+ reg_state[CTX_PDP0_UDW + 1] = upper_32_bits(px_dma(&ppgtt->pml4)); \
+ reg_state[CTX_PDP0_LDW + 1] = lower_32_bits(px_dma(&ppgtt->pml4)); \
+} while (0)
enum {
ADVANCED_CONTEXT = 0,
- LEGACY_CONTEXT,
+ LEGACY_32B_CONTEXT,
ADVANCED_AD_CONTEXT,
LEGACY_64B_CONTEXT
};
-#define GEN8_CTX_MODE_SHIFT 3
+#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 */
#define CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x17
static int intel_lr_context_pin(struct drm_i915_gem_request *rq);
+static void lrc_setup_hardware_status_page(struct intel_engine_cs *ring,
+ struct drm_i915_gem_object *default_ctx_obj);
+
/**
* intel_sanitize_enable_execlists() - sanitize i915.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))
+ return 1;
+
if (INTEL_INFO(dev)->gen >= 9)
return 1;
*/
u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj)
{
- u32 lrca = i915_gem_obj_ggtt_offset(ctx_obj);
+ u32 lrca = i915_gem_obj_ggtt_offset(ctx_obj) +
+ LRC_PPHWSP_PN * PAGE_SIZE;
/* LRCA is required to be 4K aligned so the more significant 20 bits
* are globally unique */
return lrca >> 12;
}
-static uint64_t execlists_ctx_descriptor(struct drm_i915_gem_request *rq)
+static bool disable_lite_restore_wa(struct intel_engine_cs *ring)
{
- struct intel_engine_cs *ring = rq->ring;
struct drm_device *dev = ring->dev;
- struct drm_i915_gem_object *ctx_obj = rq->ctx->engine[ring->id].state;
+
+ return (IS_SKL_REVID(dev, 0, SKL_REVID_B0) ||
+ IS_BXT_REVID(dev, 0, BXT_REVID_A1)) &&
+ (ring->id == VCS || ring->id == VCS2);
+}
+
+uint64_t intel_lr_context_descriptor(struct intel_context *ctx,
+ struct intel_engine_cs *ring)
+{
+ struct drm_i915_gem_object *ctx_obj = ctx->engine[ring->id].state;
uint64_t desc;
- uint64_t lrca = i915_gem_obj_ggtt_offset(ctx_obj);
+ uint64_t lrca = i915_gem_obj_ggtt_offset(ctx_obj) +
+ LRC_PPHWSP_PN * PAGE_SIZE;
WARN_ON(lrca & 0xFFFFFFFF00000FFFULL);
desc = GEN8_CTX_VALID;
- desc |= LEGACY_CONTEXT << GEN8_CTX_MODE_SHIFT;
+ desc |= GEN8_CTX_ADDRESSING_MODE(dev) << GEN8_CTX_ADDRESSING_MODE_SHIFT;
if (IS_GEN8(ctx_obj->base.dev))
desc |= GEN8_CTX_L3LLC_COHERENT;
desc |= GEN8_CTX_PRIVILEGE;
/* desc |= GEN8_CTX_FORCE_RESTORE; */
/* WaEnableForceRestoreInCtxtDescForVCS:skl */
- if (IS_GEN9(dev) &&
- INTEL_REVID(dev) <= SKL_REVID_B0 &&
- (ring->id == BCS || ring->id == VCS ||
- ring->id == VECS || ring->id == VCS2))
+ /* WaEnableForceRestoreInCtxtDescForVCS:bxt */
+ if (disable_lite_restore_wa(ring))
desc |= GEN8_CTX_FORCE_RESTORE;
return desc;
uint64_t desc[2];
if (rq1) {
- desc[1] = execlists_ctx_descriptor(rq1);
+ desc[1] = intel_lr_context_descriptor(rq1->ctx, rq1->ring);
rq1->elsp_submitted++;
} else {
desc[1] = 0;
}
- desc[0] = execlists_ctx_descriptor(rq0);
+ desc[0] = intel_lr_context_descriptor(rq0->ctx, rq0->ring);
rq0->elsp_submitted++;
/* You must always write both descriptors in the order below. */
I915_WRITE_FW(RING_ELSP(ring), lower_32_bits(desc[0]));
/* ELSP is a wo register, use another nearby reg for posting */
- POSTING_READ_FW(RING_EXECLIST_STATUS(ring));
+ POSTING_READ_FW(RING_EXECLIST_STATUS_LO(ring));
intel_uncore_forcewake_put__locked(dev_priv, FORCEWAKE_ALL);
spin_unlock(&dev_priv->uncore.lock);
}
WARN_ON(!i915_gem_obj_is_pinned(ctx_obj));
WARN_ON(!i915_gem_obj_is_pinned(rb_obj));
- page = i915_gem_object_get_page(ctx_obj, 1);
+ page = i915_gem_object_get_dirty_page(ctx_obj, LRC_STATE_PN);
reg_state = kmap_atomic(page);
reg_state[CTX_RING_TAIL+1] = rq->tail;
reg_state[CTX_RING_BUFFER_START+1] = i915_gem_obj_ggtt_offset(rb_obj);
- /* True PPGTT with dynamic page allocation: update PDP registers and
- * point the unallocated PDPs to the scratch page
- */
- if (ppgtt) {
+ if (ppgtt && !USES_FULL_48BIT_PPGTT(ppgtt->base.dev)) {
+ /* True 32b PPGTT with dynamic page allocation: update PDP
+ * registers and point the unallocated PDPs to scratch page.
+ * PML4 is allocated during ppgtt init, so this is not needed
+ * in 48-bit mode.
+ */
ASSIGN_CTX_PDP(ppgtt, reg_state, 3);
ASSIGN_CTX_PDP(ppgtt, reg_state, 2);
ASSIGN_CTX_PDP(ppgtt, reg_state, 1);
u32 status_pointer;
u8 read_pointer;
u8 write_pointer;
- u32 status;
+ u32 status = 0;
u32 status_id;
u32 submit_contexts = 0;
while (read_pointer < write_pointer) {
read_pointer++;
- status = I915_READ(RING_CONTEXT_STATUS_BUF(ring) +
- (read_pointer % GEN8_CSB_ENTRIES) * 8);
- status_id = I915_READ(RING_CONTEXT_STATUS_BUF(ring) +
- (read_pointer % GEN8_CSB_ENTRIES) * 8 + 4);
+ status = I915_READ(RING_CONTEXT_STATUS_BUF_LO(ring, read_pointer % GEN8_CSB_ENTRIES));
+ status_id = I915_READ(RING_CONTEXT_STATUS_BUF_HI(ring, read_pointer % GEN8_CSB_ENTRIES));
if (status & GEN8_CTX_STATUS_IDLE_ACTIVE)
continue;
}
}
- if (submit_contexts != 0)
+ if (disable_lite_restore_wa(ring)) {
+ /* Prevent a ctx to preempt itself */
+ if ((status & GEN8_CTX_STATUS_ACTIVE_IDLE) &&
+ (submit_contexts != 0))
+ execlists_context_unqueue(ring);
+ } else if (submit_contexts != 0) {
execlists_context_unqueue(ring);
+ }
spin_unlock(&ring->execlist_lock);
i915_gem_request_reference(request);
- request->tail = request->ringbuf->tail;
-
spin_lock_irq(&ring->execlist_lock);
list_for_each_entry(cursor, &ring->execlist_queue, execlist_link)
intel_logical_ring_advance_and_submit(struct drm_i915_gem_request *request)
{
struct intel_engine_cs *ring = request->ring;
+ struct drm_i915_private *dev_priv = request->i915;
intel_logical_ring_advance(request->ringbuf);
+ request->tail = request->ringbuf->tail;
+
if (intel_ring_stopped(ring))
return;
- execlists_context_queue(request);
+ if (dev_priv->guc.execbuf_client)
+ i915_guc_submit(dev_priv->guc.execbuf_client, request);
+ else
+ execlists_context_queue(request);
}
static void __wrap_ring_buffer(struct intel_ringbuffer *ringbuf)
/**
* intel_logical_ring_begin() - prepare the logical ringbuffer to accept some commands
*
- * @request: The request to start some new work for
- * @ctx: Logical ring context whose ringbuffer is being prepared.
+ * @req: The request to start some new work for
* @num_dwords: number of DWORDs that we plan to write to the ringbuffer.
*
* The ringbuffer might not be ready to accept the commands right away (maybe it needs to
return -EINVAL;
}
- if (args->num_cliprects != 0) {
- DRM_DEBUG("clip rectangles are only valid on pre-gen5\n");
- return -EINVAL;
- } else {
- if (args->DR4 == 0xffffffff) {
- DRM_DEBUG("UXA submitting garbage DR4, fixing up\n");
- args->DR4 = 0;
- }
-
- if (args->DR1 || args->DR4 || args->cliprects_ptr) {
- DRM_DEBUG("0 cliprects but dirt in cliprects fields\n");
- return -EINVAL;
- }
- }
-
if (args->flags & I915_EXEC_GEN7_SOL_RESET) {
DRM_DEBUG("sol reset is gen7 only\n");
return -EINVAL;
intel_logical_ring_emit(ringbuf, MI_NOOP);
intel_logical_ring_emit(ringbuf, MI_LOAD_REGISTER_IMM(1));
- intel_logical_ring_emit(ringbuf, INSTPM);
+ intel_logical_ring_emit_reg(ringbuf, INSTPM);
intel_logical_ring_emit(ringbuf, instp_mask << 16 | instp_mode);
intel_logical_ring_advance(ringbuf);
return 0;
}
+static int intel_lr_context_do_pin(struct intel_engine_cs *ring,
+ struct drm_i915_gem_object *ctx_obj,
+ struct intel_ringbuffer *ringbuf)
+{
+ struct drm_device *dev = ring->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret = 0;
+
+ WARN_ON(!mutex_is_locked(&ring->dev->struct_mutex));
+ ret = i915_gem_obj_ggtt_pin(ctx_obj, GEN8_LR_CONTEXT_ALIGN,
+ PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
+ if (ret)
+ return ret;
+
+ ret = intel_pin_and_map_ringbuffer_obj(ring->dev, ringbuf);
+ if (ret)
+ goto unpin_ctx_obj;
+
+ ctx_obj->dirty = true;
+
+ /* Invalidate GuC TLB. */
+ if (i915.enable_guc_submission)
+ I915_WRITE(GEN8_GTCR, GEN8_GTCR_INVALIDATE);
+
+ return ret;
+
+unpin_ctx_obj:
+ i915_gem_object_ggtt_unpin(ctx_obj);
+
+ return ret;
+}
+
static int intel_lr_context_pin(struct drm_i915_gem_request *rq)
{
+ int ret = 0;
struct intel_engine_cs *ring = rq->ring;
struct drm_i915_gem_object *ctx_obj = rq->ctx->engine[ring->id].state;
struct intel_ringbuffer *ringbuf = rq->ringbuf;
- int ret = 0;
- WARN_ON(!mutex_is_locked(&ring->dev->struct_mutex));
if (rq->ctx->engine[ring->id].pin_count++ == 0) {
- ret = i915_gem_obj_ggtt_pin(ctx_obj,
- GEN8_LR_CONTEXT_ALIGN, 0);
+ ret = intel_lr_context_do_pin(ring, ctx_obj, ringbuf);
if (ret)
goto reset_pin_count;
-
- ret = intel_pin_and_map_ringbuffer_obj(ring->dev, ringbuf);
- if (ret)
- goto unpin_ctx_obj;
-
- ctx_obj->dirty = true;
}
-
return ret;
-unpin_ctx_obj:
- i915_gem_object_ggtt_unpin(ctx_obj);
reset_pin_count:
rq->ctx->engine[ring->id].pin_count = 0;
-
return ret;
}
intel_logical_ring_emit(ringbuf, MI_LOAD_REGISTER_IMM(w->count));
for (i = 0; i < w->count; i++) {
- intel_logical_ring_emit(ringbuf, w->reg[i].addr);
+ intel_logical_ring_emit_reg(ringbuf, w->reg[i].addr);
intel_logical_ring_emit(ringbuf, w->reg[i].value);
}
intel_logical_ring_emit(ringbuf, MI_NOOP);
batch[__index] = (cmd); \
} while (0)
+#define wa_ctx_emit_reg(batch, index, reg) \
+ wa_ctx_emit((batch), (index), i915_mmio_reg_offset(reg))
/*
* In this WA we need to set GEN8_L3SQCREG4[21:21] and reset it after
* this batch updates GEN8_L3SQCREG4 with default value we need to
* set this bit here to retain the WA during flush.
*/
- if (IS_SKYLAKE(ring->dev) && INTEL_REVID(ring->dev) <= SKL_REVID_E0)
+ if (IS_SKL_REVID(ring->dev, 0, SKL_REVID_E0))
l3sqc4_flush |= GEN8_LQSC_RO_PERF_DIS;
- wa_ctx_emit(batch, index, (MI_STORE_REGISTER_MEM_GEN8(1) |
+ wa_ctx_emit(batch, index, (MI_STORE_REGISTER_MEM_GEN8 |
MI_SRM_LRM_GLOBAL_GTT));
- wa_ctx_emit(batch, index, GEN8_L3SQCREG4);
+ wa_ctx_emit_reg(batch, index, GEN8_L3SQCREG4);
wa_ctx_emit(batch, index, ring->scratch.gtt_offset + 256);
wa_ctx_emit(batch, index, 0);
wa_ctx_emit(batch, index, MI_LOAD_REGISTER_IMM(1));
- wa_ctx_emit(batch, index, GEN8_L3SQCREG4);
+ wa_ctx_emit_reg(batch, index, GEN8_L3SQCREG4);
wa_ctx_emit(batch, index, l3sqc4_flush);
wa_ctx_emit(batch, index, GFX_OP_PIPE_CONTROL(6));
wa_ctx_emit(batch, index, 0);
wa_ctx_emit(batch, index, 0);
- wa_ctx_emit(batch, index, (MI_LOAD_REGISTER_MEM_GEN8(1) |
+ wa_ctx_emit(batch, index, (MI_LOAD_REGISTER_MEM_GEN8 |
MI_SRM_LRM_GLOBAL_GTT));
- wa_ctx_emit(batch, index, GEN8_L3SQCREG4);
+ wa_ctx_emit_reg(batch, index, GEN8_L3SQCREG4);
wa_ctx_emit(batch, index, ring->scratch.gtt_offset + 256);
wa_ctx_emit(batch, index, 0);
/* WaFlushCoherentL3CacheLinesAtContextSwitch:bdw */
if (IS_BROADWELL(ring->dev)) {
- index = gen8_emit_flush_coherentl3_wa(ring, batch, index);
- if (index < 0)
- return index;
+ int rc = gen8_emit_flush_coherentl3_wa(ring, batch, index);
+ if (rc < 0)
+ return rc;
+ index = rc;
}
/* WaClearSlmSpaceAtContextSwitch:bdw,chv */
uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS);
/* WaDisableCtxRestoreArbitration:skl,bxt */
- if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) <= SKL_REVID_D0)) ||
- (IS_BROXTON(dev) && (INTEL_REVID(dev) == BXT_REVID_A0)))
+ if (IS_SKL_REVID(dev, 0, SKL_REVID_D0) ||
+ IS_BXT_REVID(dev, 0, BXT_REVID_A1))
wa_ctx_emit(batch, index, MI_ARB_ON_OFF | MI_ARB_DISABLE);
/* WaFlushCoherentL3CacheLinesAtContextSwitch:skl,bxt */
uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS);
/* WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken:skl,bxt */
- if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) <= SKL_REVID_B0)) ||
- (IS_BROXTON(dev) && (INTEL_REVID(dev) == BXT_REVID_A0))) {
+ if (IS_SKL_REVID(dev, 0, SKL_REVID_B0) ||
+ IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
wa_ctx_emit(batch, index, MI_LOAD_REGISTER_IMM(1));
- wa_ctx_emit(batch, index, GEN9_SLICE_COMMON_ECO_CHICKEN0);
+ wa_ctx_emit_reg(batch, index, GEN9_SLICE_COMMON_ECO_CHICKEN0);
wa_ctx_emit(batch, index,
_MASKED_BIT_ENABLE(DISABLE_PIXEL_MASK_CAMMING));
wa_ctx_emit(batch, index, MI_NOOP);
}
/* WaDisableCtxRestoreArbitration:skl,bxt */
- if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) <= SKL_REVID_D0)) ||
- (IS_BROXTON(dev) && (INTEL_REVID(dev) == BXT_REVID_A0)))
+ if (IS_SKL_REVID(dev, 0, SKL_REVID_D0) ||
+ IS_BXT_REVID(dev, 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);
return ret;
}
- page = i915_gem_object_get_page(wa_ctx->obj, 0);
+ page = i915_gem_object_get_dirty_page(wa_ctx->obj, 0);
batch = kmap_atomic(page);
offset = 0;
struct drm_i915_private *dev_priv = dev->dev_private;
u8 next_context_status_buffer_hw;
+ lrc_setup_hardware_status_page(ring,
+ ring->default_context->engine[ring->id].state);
+
I915_WRITE_IMR(ring, ~(ring->irq_enable_mask | ring->irq_keep_mask));
I915_WRITE(RING_HWSTAM(ring->mmio_base), 0xffffffff);
- if (ring->status_page.obj) {
- I915_WRITE(RING_HWS_PGA(ring->mmio_base),
- (u32)ring->status_page.gfx_addr);
- POSTING_READ(RING_HWS_PGA(ring->mmio_base));
- }
-
I915_WRITE(RING_MODE_GEN7(ring),
_MASKED_BIT_DISABLE(GFX_REPLAY_MODE) |
_MASKED_BIT_ENABLE(GFX_RUN_LIST_ENABLE));
for (i = GEN8_LEGACY_PDPES - 1; i >= 0; i--) {
const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i);
- intel_logical_ring_emit(ringbuf, GEN8_RING_PDP_UDW(ring, i));
+ intel_logical_ring_emit_reg(ringbuf, GEN8_RING_PDP_UDW(ring, i));
intel_logical_ring_emit(ringbuf, upper_32_bits(pd_daddr));
- intel_logical_ring_emit(ringbuf, GEN8_RING_PDP_LDW(ring, i));
+ intel_logical_ring_emit_reg(ringbuf, GEN8_RING_PDP_LDW(ring, i));
intel_logical_ring_emit(ringbuf, lower_32_bits(pd_daddr));
}
* Ideally, we should set Force PD Restore in ctx descriptor,
* but we can't. Force Restore would be a second option, but
* it is unsafe in case of lite-restore (because the ctx is
- * not idle). */
+ * not idle). PML4 is allocated during ppgtt init so this is
+ * not needed in 48-bit.*/
if (req->ctx->ppgtt &&
(intel_ring_flag(req->ring) & req->ctx->ppgtt->pd_dirty_rings)) {
- ret = intel_logical_ring_emit_pdps(req);
- if (ret)
- return ret;
+ if (!USES_FULL_48BIT_PPGTT(req->i915) &&
+ !intel_vgpu_active(req->i915->dev)) {
+ ret = intel_logical_ring_emit_pdps(req);
+ if (ret)
+ return ret;
+ }
req->ctx->ppgtt->pd_dirty_rings &= ~intel_ring_flag(req->ring);
}
intel_write_status_page(ring, I915_GEM_HWS_INDEX, seqno);
}
+static u32 bxt_a_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency)
+{
+
+ /*
+ * On BXT A steppings there is a HW coherency issue whereby the
+ * MI_STORE_DATA_IMM storing the completed request's seqno
+ * occasionally doesn't invalidate the CPU cache. Work around this by
+ * clflushing the corresponding cacheline whenever the caller wants
+ * the coherency to be guaranteed. Note that this cacheline is known
+ * to be clean at this point, since we only write it in
+ * bxt_a_set_seqno(), where we also do a clflush after the write. So
+ * this clflush in practice becomes an invalidate operation.
+ */
+
+ if (!lazy_coherency)
+ intel_flush_status_page(ring, I915_GEM_HWS_INDEX);
+
+ return intel_read_status_page(ring, I915_GEM_HWS_INDEX);
+}
+
+static void bxt_a_set_seqno(struct intel_engine_cs *ring, u32 seqno)
+{
+ intel_write_status_page(ring, I915_GEM_HWS_INDEX, seqno);
+
+ /* See bxt_a_get_seqno() explaining the reason for the clflush. */
+ intel_flush_status_page(ring, I915_GEM_HWS_INDEX);
+}
+
static int gen8_emit_request(struct drm_i915_gem_request *request)
{
struct intel_ringbuffer *ringbuf = request->ringbuf;
dev_priv = ring->dev->dev_private;
- intel_logical_ring_stop(ring);
- WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0);
+ if (ring->buffer) {
+ intel_logical_ring_stop(ring);
+ WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0);
+ }
if (ring->cleanup)
ring->cleanup(ring);
}
lrc_destroy_wa_ctx_obj(ring);
+ ring->dev = NULL;
}
static int logical_ring_init(struct drm_device *dev, struct intel_engine_cs *ring)
i915_gem_batch_pool_init(dev, &ring->batch_pool);
init_waitqueue_head(&ring->irq_queue);
+ INIT_LIST_HEAD(&ring->buffers);
INIT_LIST_HEAD(&ring->execlist_queue);
INIT_LIST_HEAD(&ring->execlist_retired_req_list);
spin_lock_init(&ring->execlist_lock);
ret = i915_cmd_parser_init_ring(ring);
if (ret)
- return ret;
+ goto error;
+
+ ret = intel_lr_context_deferred_alloc(ring->default_context, ring);
+ if (ret)
+ goto error;
+
+ /* As this is the default context, always pin it */
+ ret = intel_lr_context_do_pin(
+ ring,
+ ring->default_context->engine[ring->id].state,
+ ring->default_context->engine[ring->id].ringbuf);
+ if (ret) {
+ DRM_ERROR(
+ "Failed to pin and map ringbuffer %s: %d\n",
+ ring->name, ret);
+ goto error;
+ }
- ret = intel_lr_context_deferred_create(ring->default_context, ring);
+ return 0;
+error:
+ intel_logical_ring_cleanup(ring);
return ret;
}
ring->init_hw = gen8_init_render_ring;
ring->init_context = gen8_init_rcs_context;
ring->cleanup = intel_fini_pipe_control;
- ring->get_seqno = gen8_get_seqno;
- ring->set_seqno = gen8_set_seqno;
+ if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
+ ring->get_seqno = bxt_a_get_seqno;
+ ring->set_seqno = bxt_a_set_seqno;
+ } else {
+ ring->get_seqno = gen8_get_seqno;
+ ring->set_seqno = gen8_set_seqno;
+ }
ring->emit_request = gen8_emit_request;
ring->emit_flush = gen8_emit_flush_render;
ring->irq_get = gen8_logical_ring_get_irq;
GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS1_IRQ_SHIFT;
ring->init_hw = gen8_init_common_ring;
- ring->get_seqno = gen8_get_seqno;
- ring->set_seqno = gen8_set_seqno;
+ if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
+ ring->get_seqno = bxt_a_get_seqno;
+ ring->set_seqno = bxt_a_set_seqno;
+ } else {
+ ring->get_seqno = gen8_get_seqno;
+ ring->set_seqno = gen8_set_seqno;
+ }
ring->emit_request = gen8_emit_request;
ring->emit_flush = gen8_emit_flush;
ring->irq_get = gen8_logical_ring_get_irq;
GT_CONTEXT_SWITCH_INTERRUPT << GEN8_BCS_IRQ_SHIFT;
ring->init_hw = gen8_init_common_ring;
- ring->get_seqno = gen8_get_seqno;
- ring->set_seqno = gen8_set_seqno;
+ if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
+ ring->get_seqno = bxt_a_get_seqno;
+ ring->set_seqno = bxt_a_set_seqno;
+ } else {
+ ring->get_seqno = gen8_get_seqno;
+ ring->set_seqno = gen8_set_seqno;
+ }
ring->emit_request = gen8_emit_request;
ring->emit_flush = gen8_emit_flush;
ring->irq_get = gen8_logical_ring_get_irq;
GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VECS_IRQ_SHIFT;
ring->init_hw = gen8_init_common_ring;
- ring->get_seqno = gen8_get_seqno;
- ring->set_seqno = gen8_set_seqno;
+ if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) {
+ ring->get_seqno = bxt_a_get_seqno;
+ ring->set_seqno = bxt_a_set_seqno;
+ } else {
+ ring->get_seqno = gen8_get_seqno;
+ ring->set_seqno = gen8_set_seqno;
+ }
ring->emit_request = gen8_emit_request;
ring->emit_flush = gen8_emit_flush;
ring->irq_get = gen8_logical_ring_get_irq;
goto cleanup_vebox_ring;
}
- ret = i915_gem_set_seqno(dev, ((u32)~0 - 0x1000));
- if (ret)
- goto cleanup_bsd2_ring;
-
return 0;
-cleanup_bsd2_ring:
- intel_logical_ring_cleanup(&dev_priv->ring[VCS2]);
cleanup_vebox_ring:
intel_logical_ring_cleanup(&dev_priv->ring[VECS]);
cleanup_blt_ring:
/* The second page of the context object contains some fields which must
* be set up prior to the first execution. */
- page = i915_gem_object_get_page(ctx_obj, 1);
+ page = i915_gem_object_get_dirty_page(ctx_obj, LRC_STATE_PN);
reg_state = kmap_atomic(page);
/* A context is actually a big batch buffer with several MI_LOAD_REGISTER_IMM
* only for the first context restore: on a subsequent save, the GPU will
* recreate this batchbuffer with new values (including all the missing
* MI_LOAD_REGISTER_IMM commands that we are not initializing here). */
- if (ring->id == RCS)
- reg_state[CTX_LRI_HEADER_0] = MI_LOAD_REGISTER_IMM(14);
- else
- reg_state[CTX_LRI_HEADER_0] = MI_LOAD_REGISTER_IMM(11);
- reg_state[CTX_LRI_HEADER_0] |= MI_LRI_FORCE_POSTED;
- reg_state[CTX_CONTEXT_CONTROL] = RING_CONTEXT_CONTROL(ring);
- reg_state[CTX_CONTEXT_CONTROL+1] =
- _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH |
- CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT |
- CTX_CTRL_RS_CTX_ENABLE);
- reg_state[CTX_RING_HEAD] = RING_HEAD(ring->mmio_base);
- reg_state[CTX_RING_HEAD+1] = 0;
- reg_state[CTX_RING_TAIL] = RING_TAIL(ring->mmio_base);
- reg_state[CTX_RING_TAIL+1] = 0;
- reg_state[CTX_RING_BUFFER_START] = RING_START(ring->mmio_base);
+ reg_state[CTX_LRI_HEADER_0] =
+ MI_LOAD_REGISTER_IMM(ring->id == RCS ? 14 : 11) | MI_LRI_FORCE_POSTED;
+ ASSIGN_CTX_REG(reg_state, CTX_CONTEXT_CONTROL, RING_CONTEXT_CONTROL(ring),
+ _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH |
+ CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT |
+ CTX_CTRL_RS_CTX_ENABLE));
+ ASSIGN_CTX_REG(reg_state, CTX_RING_HEAD, RING_HEAD(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_RING_TAIL, RING_TAIL(ring->mmio_base), 0);
/* Ring buffer start address is not known until the buffer is pinned.
* It is written to the context image in execlists_update_context()
*/
- reg_state[CTX_RING_BUFFER_CONTROL] = RING_CTL(ring->mmio_base);
- reg_state[CTX_RING_BUFFER_CONTROL+1] =
- ((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES) | RING_VALID;
- reg_state[CTX_BB_HEAD_U] = ring->mmio_base + 0x168;
- reg_state[CTX_BB_HEAD_U+1] = 0;
- reg_state[CTX_BB_HEAD_L] = ring->mmio_base + 0x140;
- reg_state[CTX_BB_HEAD_L+1] = 0;
- reg_state[CTX_BB_STATE] = ring->mmio_base + 0x110;
- reg_state[CTX_BB_STATE+1] = (1<<5);
- reg_state[CTX_SECOND_BB_HEAD_U] = ring->mmio_base + 0x11c;
- reg_state[CTX_SECOND_BB_HEAD_U+1] = 0;
- reg_state[CTX_SECOND_BB_HEAD_L] = ring->mmio_base + 0x114;
- reg_state[CTX_SECOND_BB_HEAD_L+1] = 0;
- reg_state[CTX_SECOND_BB_STATE] = ring->mmio_base + 0x118;
- reg_state[CTX_SECOND_BB_STATE+1] = 0;
+ ASSIGN_CTX_REG(reg_state, CTX_RING_BUFFER_START, RING_START(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_RING_BUFFER_CONTROL, RING_CTL(ring->mmio_base),
+ ((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES) | RING_VALID);
+ ASSIGN_CTX_REG(reg_state, CTX_BB_HEAD_U, RING_BBADDR_UDW(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_BB_HEAD_L, RING_BBADDR(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_BB_STATE, RING_BBSTATE(ring->mmio_base),
+ RING_BB_PPGTT);
+ ASSIGN_CTX_REG(reg_state, CTX_SECOND_BB_HEAD_U, RING_SBBADDR_UDW(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_SECOND_BB_HEAD_L, RING_SBBADDR(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_SECOND_BB_STATE, RING_SBBSTATE(ring->mmio_base), 0);
if (ring->id == RCS) {
- reg_state[CTX_BB_PER_CTX_PTR] = ring->mmio_base + 0x1c0;
- reg_state[CTX_BB_PER_CTX_PTR+1] = 0;
- reg_state[CTX_RCS_INDIRECT_CTX] = ring->mmio_base + 0x1c4;
- reg_state[CTX_RCS_INDIRECT_CTX+1] = 0;
- reg_state[CTX_RCS_INDIRECT_CTX_OFFSET] = ring->mmio_base + 0x1c8;
- reg_state[CTX_RCS_INDIRECT_CTX_OFFSET+1] = 0;
+ ASSIGN_CTX_REG(reg_state, CTX_BB_PER_CTX_PTR, RING_BB_PER_CTX_PTR(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_RCS_INDIRECT_CTX, RING_INDIRECT_CTX(ring->mmio_base), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_RCS_INDIRECT_CTX_OFFSET, RING_INDIRECT_CTX_OFFSET(ring->mmio_base), 0);
if (ring->wa_ctx.obj) {
struct i915_ctx_workarounds *wa_ctx = &ring->wa_ctx;
uint32_t ggtt_offset = i915_gem_obj_ggtt_offset(wa_ctx->obj);
0x01;
}
}
- reg_state[CTX_LRI_HEADER_1] = MI_LOAD_REGISTER_IMM(9);
- reg_state[CTX_LRI_HEADER_1] |= MI_LRI_FORCE_POSTED;
- reg_state[CTX_CTX_TIMESTAMP] = ring->mmio_base + 0x3a8;
- reg_state[CTX_CTX_TIMESTAMP+1] = 0;
- reg_state[CTX_PDP3_UDW] = GEN8_RING_PDP_UDW(ring, 3);
- reg_state[CTX_PDP3_LDW] = GEN8_RING_PDP_LDW(ring, 3);
- reg_state[CTX_PDP2_UDW] = GEN8_RING_PDP_UDW(ring, 2);
- reg_state[CTX_PDP2_LDW] = GEN8_RING_PDP_LDW(ring, 2);
- reg_state[CTX_PDP1_UDW] = GEN8_RING_PDP_UDW(ring, 1);
- reg_state[CTX_PDP1_LDW] = GEN8_RING_PDP_LDW(ring, 1);
- reg_state[CTX_PDP0_UDW] = GEN8_RING_PDP_UDW(ring, 0);
- reg_state[CTX_PDP0_LDW] = GEN8_RING_PDP_LDW(ring, 0);
-
- /* With dynamic page allocation, PDPs may not be allocated at this point,
- * Point the unallocated PDPs to the scratch page
- */
- ASSIGN_CTX_PDP(ppgtt, reg_state, 3);
- ASSIGN_CTX_PDP(ppgtt, reg_state, 2);
- ASSIGN_CTX_PDP(ppgtt, reg_state, 1);
- ASSIGN_CTX_PDP(ppgtt, reg_state, 0);
+ reg_state[CTX_LRI_HEADER_1] = MI_LOAD_REGISTER_IMM(9) | MI_LRI_FORCE_POSTED;
+ ASSIGN_CTX_REG(reg_state, CTX_CTX_TIMESTAMP, RING_CTX_TIMESTAMP(ring->mmio_base), 0);
+ /* PDP values well be assigned later if needed */
+ ASSIGN_CTX_REG(reg_state, CTX_PDP3_UDW, GEN8_RING_PDP_UDW(ring, 3), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP3_LDW, GEN8_RING_PDP_LDW(ring, 3), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP2_UDW, GEN8_RING_PDP_UDW(ring, 2), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP2_LDW, GEN8_RING_PDP_LDW(ring, 2), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP1_UDW, GEN8_RING_PDP_UDW(ring, 1), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP1_LDW, GEN8_RING_PDP_LDW(ring, 1), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP0_UDW, GEN8_RING_PDP_UDW(ring, 0), 0);
+ ASSIGN_CTX_REG(reg_state, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(ring, 0), 0);
+
+ if (USES_FULL_48BIT_PPGTT(ppgtt->base.dev)) {
+ /* 64b PPGTT (48bit canonical)
+ * PDP0_DESCRIPTOR contains the base address to PML4 and
+ * other PDP Descriptors are ignored.
+ */
+ ASSIGN_CTX_PML4(ppgtt, reg_state);
+ } else {
+ /* 32b PPGTT
+ * PDP*_DESCRIPTOR contains the base address of space supported.
+ * With dynamic page allocation, PDPs may not be allocated at
+ * this point. Point the unallocated PDPs to the scratch page
+ */
+ ASSIGN_CTX_PDP(ppgtt, reg_state, 3);
+ ASSIGN_CTX_PDP(ppgtt, reg_state, 2);
+ ASSIGN_CTX_PDP(ppgtt, reg_state, 1);
+ ASSIGN_CTX_PDP(ppgtt, reg_state, 0);
+ }
+
if (ring->id == RCS) {
reg_state[CTX_LRI_HEADER_2] = MI_LOAD_REGISTER_IMM(1);
- reg_state[CTX_R_PWR_CLK_STATE] = GEN8_R_PWR_CLK_STATE;
- reg_state[CTX_R_PWR_CLK_STATE+1] = make_rpcs(dev);
+ ASSIGN_CTX_REG(reg_state, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE,
+ make_rpcs(dev));
}
kunmap_atomic(reg_state);
-
- ctx_obj->dirty = 1;
- set_page_dirty(page);
i915_gem_object_unpin_pages(ctx_obj);
return 0;
i915_gem_object_ggtt_unpin(ctx_obj);
}
WARN_ON(ctx->engine[ring->id].pin_count);
- intel_destroy_ringbuffer_obj(ringbuf);
- kfree(ringbuf);
+ intel_ringbuffer_free(ringbuf);
drm_gem_object_unreference(&ctx_obj->base);
}
}
struct drm_i915_gem_object *default_ctx_obj)
{
struct drm_i915_private *dev_priv = ring->dev->dev_private;
+ struct page *page;
- /* The status page is offset 0 from the default context object
- * in LRC mode. */
- ring->status_page.gfx_addr = i915_gem_obj_ggtt_offset(default_ctx_obj);
- ring->status_page.page_addr =
- kmap(sg_page(default_ctx_obj->pages->sgl));
+ /* The HWSP is part of the default context object in LRC mode. */
+ ring->status_page.gfx_addr = i915_gem_obj_ggtt_offset(default_ctx_obj)
+ + LRC_PPHWSP_PN * PAGE_SIZE;
+ page = i915_gem_object_get_page(default_ctx_obj, LRC_PPHWSP_PN);
+ ring->status_page.page_addr = kmap(page);
ring->status_page.obj = default_ctx_obj;
I915_WRITE(RING_HWS_PGA(ring->mmio_base),
}
/**
- * intel_lr_context_deferred_create() - create the LRC specific bits of a context
+ * intel_lr_context_deferred_alloc() - create the LRC specific bits of a context
* @ctx: LR context to create.
* @ring: engine to be used with the context.
*
*
* Return: non-zero on error.
*/
-int intel_lr_context_deferred_create(struct intel_context *ctx,
+
+int intel_lr_context_deferred_alloc(struct intel_context *ctx,
struct intel_engine_cs *ring)
{
- const bool is_global_default_ctx = (ctx == ring->default_context);
struct drm_device *dev = ring->dev;
struct drm_i915_gem_object *ctx_obj;
uint32_t context_size;
context_size = round_up(get_lr_context_size(ring), 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) {
DRM_DEBUG_DRIVER("Alloc LRC backing obj failed.\n");
return -ENOMEM;
}
- if (is_global_default_ctx) {
- ret = i915_gem_obj_ggtt_pin(ctx_obj, GEN8_LR_CONTEXT_ALIGN, 0);
- if (ret) {
- DRM_DEBUG_DRIVER("Pin LRC backing obj failed: %d\n",
- ret);
- drm_gem_object_unreference(&ctx_obj->base);
- return ret;
- }
- }
-
- ringbuf = kzalloc(sizeof(*ringbuf), GFP_KERNEL);
- if (!ringbuf) {
- DRM_DEBUG_DRIVER("Failed to allocate ringbuffer %s\n",
- ring->name);
- ret = -ENOMEM;
- goto error_unpin_ctx;
- }
-
- ringbuf->ring = ring;
-
- ringbuf->size = 32 * PAGE_SIZE;
- ringbuf->effective_size = ringbuf->size;
- ringbuf->head = 0;
- ringbuf->tail = 0;
- ringbuf->last_retired_head = -1;
- intel_ring_update_space(ringbuf);
-
- if (ringbuf->obj == NULL) {
- ret = intel_alloc_ringbuffer_obj(dev, ringbuf);
- if (ret) {
- DRM_DEBUG_DRIVER(
- "Failed to allocate ringbuffer obj %s: %d\n",
- ring->name, ret);
- goto error_free_rbuf;
- }
-
- if (is_global_default_ctx) {
- ret = intel_pin_and_map_ringbuffer_obj(dev, ringbuf);
- if (ret) {
- DRM_ERROR(
- "Failed to pin and map ringbuffer %s: %d\n",
- ring->name, ret);
- goto error_destroy_rbuf;
- }
- }
-
+ ringbuf = intel_engine_create_ringbuffer(ring, 4 * PAGE_SIZE);
+ if (IS_ERR(ringbuf)) {
+ ret = PTR_ERR(ringbuf);
+ goto error_deref_obj;
}
ret = populate_lr_context(ctx, ctx_obj, ring, ringbuf);
if (ret) {
DRM_DEBUG_DRIVER("Failed to populate LRC: %d\n", ret);
- goto error;
+ goto error_ringbuf;
}
ctx->engine[ring->id].ringbuf = ringbuf;
ctx->engine[ring->id].state = ctx_obj;
- if (ctx == ring->default_context)
- lrc_setup_hardware_status_page(ring, ctx_obj);
- else if (ring->id == RCS && !ctx->rcs_initialized) {
- if (ring->init_context) {
- struct drm_i915_gem_request *req;
+ if (ctx != ring->default_context && ring->init_context) {
+ struct drm_i915_gem_request *req;
- ret = i915_gem_request_alloc(ring, ctx, &req);
- if (ret)
- return ret;
-
- ret = ring->init_context(req);
- if (ret) {
- DRM_ERROR("ring init context: %d\n", ret);
- i915_gem_request_cancel(req);
- ctx->engine[ring->id].ringbuf = NULL;
- ctx->engine[ring->id].state = NULL;
- goto error;
- }
-
- i915_add_request_no_flush(req);
+ ret = i915_gem_request_alloc(ring,
+ ctx, &req);
+ if (ret) {
+ DRM_ERROR("ring create req: %d\n",
+ ret);
+ goto error_ringbuf;
}
- ctx->rcs_initialized = true;
+ ret = ring->init_context(req);
+ if (ret) {
+ DRM_ERROR("ring init context: %d\n",
+ ret);
+ i915_gem_request_cancel(req);
+ goto error_ringbuf;
+ }
+ i915_add_request_no_flush(req);
}
-
return 0;
-error:
- if (is_global_default_ctx)
- intel_unpin_ringbuffer_obj(ringbuf);
-error_destroy_rbuf:
- intel_destroy_ringbuffer_obj(ringbuf);
-error_free_rbuf:
- kfree(ringbuf);
-error_unpin_ctx:
- if (is_global_default_ctx)
- i915_gem_object_ggtt_unpin(ctx_obj);
+error_ringbuf:
+ intel_ringbuffer_free(ringbuf);
+error_deref_obj:
drm_gem_object_unreference(&ctx_obj->base);
+ ctx->engine[ring->id].ringbuf = NULL;
+ ctx->engine[ring->id].state = NULL;
return ret;
}
WARN(1, "Failed get_pages for context obj\n");
continue;
}
- page = i915_gem_object_get_page(ctx_obj, 1);
+ page = i915_gem_object_get_dirty_page(ctx_obj, LRC_STATE_PN);
reg_state = kmap_atomic(page);
reg_state[CTX_RING_HEAD+1] = 0;
projects / karo-tx-linux.git / blobdiff