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path: root/drivers/gpu/drm/i915/intel_ringbuffer.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c1255
1 files changed, 818 insertions, 437 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 460ee1026fc..279488addf3 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -33,16 +33,44 @@
#include "i915_trace.h"
#include "intel_drv.h"
-static inline int ring_space(struct intel_ring_buffer *ring)
+/* Early gen2 devices have a cacheline of just 32 bytes, using 64 is overkill,
+ * but keeps the logic simple. Indeed, the whole purpose of this macro is just
+ * to give some inclination as to some of the magic values used in the various
+ * workarounds!
+ */
+#define CACHELINE_BYTES 64
+
+static inline int __ring_space(int head, int tail, int size)
{
- int space = (ring->head & HEAD_ADDR) - (ring->tail + I915_RING_FREE_SPACE);
+ int space = head - (tail + I915_RING_FREE_SPACE);
if (space < 0)
- space += ring->size;
+ space += size;
return space;
}
+static inline int ring_space(struct intel_engine_cs *ring)
+{
+ struct intel_ringbuffer *ringbuf = ring->buffer;
+ return __ring_space(ringbuf->head & HEAD_ADDR, ringbuf->tail, ringbuf->size);
+}
+
+static bool intel_ring_stopped(struct intel_engine_cs *ring)
+{
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
+ return dev_priv->gpu_error.stop_rings & intel_ring_flag(ring);
+}
+
+void __intel_ring_advance(struct intel_engine_cs *ring)
+{
+ struct intel_ringbuffer *ringbuf = ring->buffer;
+ ringbuf->tail &= ringbuf->size - 1;
+ if (intel_ring_stopped(ring))
+ return;
+ ring->write_tail(ring, ringbuf->tail);
+}
+
static int
-gen2_render_ring_flush(struct intel_ring_buffer *ring,
+gen2_render_ring_flush(struct intel_engine_cs *ring,
u32 invalidate_domains,
u32 flush_domains)
{
@@ -68,7 +96,7 @@ gen2_render_ring_flush(struct intel_ring_buffer *ring,
}
static int
-gen4_render_ring_flush(struct intel_ring_buffer *ring,
+gen4_render_ring_flush(struct intel_engine_cs *ring,
u32 invalidate_domains,
u32 flush_domains)
{
@@ -163,9 +191,9 @@ gen4_render_ring_flush(struct intel_ring_buffer *ring,
* really our business. That leaves only stall at scoreboard.
*/
static int
-intel_emit_post_sync_nonzero_flush(struct intel_ring_buffer *ring)
+intel_emit_post_sync_nonzero_flush(struct intel_engine_cs *ring)
{
- u32 scratch_addr = ring->scratch.gtt_offset + 128;
+ u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
int ret;
@@ -198,11 +226,11 @@ intel_emit_post_sync_nonzero_flush(struct intel_ring_buffer *ring)
}
static int
-gen6_render_ring_flush(struct intel_ring_buffer *ring,
+gen6_render_ring_flush(struct intel_engine_cs *ring,
u32 invalidate_domains, u32 flush_domains)
{
u32 flags = 0;
- u32 scratch_addr = ring->scratch.gtt_offset + 128;
+ u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
int ret;
/* Force SNB workarounds for PIPE_CONTROL flushes */
@@ -250,7 +278,7 @@ gen6_render_ring_flush(struct intel_ring_buffer *ring,
}
static int
-gen7_render_ring_cs_stall_wa(struct intel_ring_buffer *ring)
+gen7_render_ring_cs_stall_wa(struct intel_engine_cs *ring)
{
int ret;
@@ -268,21 +296,23 @@ gen7_render_ring_cs_stall_wa(struct intel_ring_buffer *ring)
return 0;
}
-static int gen7_ring_fbc_flush(struct intel_ring_buffer *ring, u32 value)
+static int gen7_ring_fbc_flush(struct intel_engine_cs *ring, u32 value)
{
int ret;
if (!ring->fbc_dirty)
return 0;
- ret = intel_ring_begin(ring, 4);
+ ret = intel_ring_begin(ring, 6);
if (ret)
return ret;
- intel_ring_emit(ring, MI_NOOP);
/* WaFbcNukeOn3DBlt:ivb/hsw */
intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
intel_ring_emit(ring, MSG_FBC_REND_STATE);
intel_ring_emit(ring, value);
+ intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) | MI_SRM_LRM_GLOBAL_GTT);
+ intel_ring_emit(ring, MSG_FBC_REND_STATE);
+ intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
intel_ring_advance(ring);
ring->fbc_dirty = false;
@@ -290,11 +320,11 @@ static int gen7_ring_fbc_flush(struct intel_ring_buffer *ring, u32 value)
}
static int
-gen7_render_ring_flush(struct intel_ring_buffer *ring,
+gen7_render_ring_flush(struct intel_engine_cs *ring,
u32 invalidate_domains, u32 flush_domains)
{
u32 flags = 0;
- u32 scratch_addr = ring->scratch.gtt_offset + 128;
+ u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
int ret;
/*
@@ -344,29 +374,77 @@ gen7_render_ring_flush(struct intel_ring_buffer *ring,
intel_ring_emit(ring, 0);
intel_ring_advance(ring);
- if (flush_domains)
+ if (!invalidate_domains && flush_domains)
return gen7_ring_fbc_flush(ring, FBC_REND_NUKE);
return 0;
}
-static void ring_write_tail(struct intel_ring_buffer *ring,
+static int
+gen8_render_ring_flush(struct intel_engine_cs *ring,
+ u32 invalidate_domains, u32 flush_domains)
+{
+ u32 flags = 0;
+ u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
+ int ret;
+
+ flags |= PIPE_CONTROL_CS_STALL;
+
+ if (flush_domains) {
+ flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
+ flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+ }
+ if (invalidate_domains) {
+ flags |= PIPE_CONTROL_TLB_INVALIDATE;
+ flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
+ flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
+ flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
+ flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
+ flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+ flags |= PIPE_CONTROL_QW_WRITE;
+ flags |= PIPE_CONTROL_GLOBAL_GTT_IVB;
+ }
+
+ ret = intel_ring_begin(ring, 6);
+ if (ret)
+ return ret;
+
+ intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(6));
+ intel_ring_emit(ring, flags);
+ intel_ring_emit(ring, scratch_addr);
+ intel_ring_emit(ring, 0);
+ intel_ring_emit(ring, 0);
+ intel_ring_emit(ring, 0);
+ intel_ring_advance(ring);
+
+ return 0;
+
+}
+
+static void ring_write_tail(struct intel_engine_cs *ring,
u32 value)
{
- drm_i915_private_t *dev_priv = ring->dev->dev_private;
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
I915_WRITE_TAIL(ring, value);
}
-u32 intel_ring_get_active_head(struct intel_ring_buffer *ring)
+u64 intel_ring_get_active_head(struct intel_engine_cs *ring)
{
- drm_i915_private_t *dev_priv = ring->dev->dev_private;
- u32 acthd_reg = INTEL_INFO(ring->dev)->gen >= 4 ?
- RING_ACTHD(ring->mmio_base) : ACTHD;
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
+ u64 acthd;
+
+ if (INTEL_INFO(ring->dev)->gen >= 8)
+ acthd = I915_READ64_2x32(RING_ACTHD(ring->mmio_base),
+ RING_ACTHD_UDW(ring->mmio_base));
+ else if (INTEL_INFO(ring->dev)->gen >= 4)
+ acthd = I915_READ(RING_ACTHD(ring->mmio_base));
+ else
+ acthd = I915_READ(ACTHD);
- return I915_READ(acthd_reg);
+ return acthd;
}
-static void ring_setup_phys_status_page(struct intel_ring_buffer *ring)
+static void ring_setup_phys_status_page(struct intel_engine_cs *ring)
{
struct drm_i915_private *dev_priv = ring->dev->dev_private;
u32 addr;
@@ -377,31 +455,42 @@ static void ring_setup_phys_status_page(struct intel_ring_buffer *ring)
I915_WRITE(HWS_PGA, addr);
}
-static int init_ring_common(struct intel_ring_buffer *ring)
+static bool stop_ring(struct intel_engine_cs *ring)
{
- struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct drm_i915_gem_object *obj = ring->obj;
- int ret = 0;
- u32 head;
-
- if (HAS_FORCE_WAKE(dev))
- gen6_gt_force_wake_get(dev_priv);
+ struct drm_i915_private *dev_priv = to_i915(ring->dev);
- if (I915_NEED_GFX_HWS(dev))
- intel_ring_setup_status_page(ring);
- else
- ring_setup_phys_status_page(ring);
+ if (!IS_GEN2(ring->dev)) {
+ I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING));
+ if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
+ DRM_ERROR("%s :timed out trying to stop ring\n", ring->name);
+ return false;
+ }
+ }
- /* Stop the ring if it's running. */
I915_WRITE_CTL(ring, 0);
I915_WRITE_HEAD(ring, 0);
ring->write_tail(ring, 0);
- head = I915_READ_HEAD(ring) & HEAD_ADDR;
+ if (!IS_GEN2(ring->dev)) {
+ (void)I915_READ_CTL(ring);
+ I915_WRITE_MODE(ring, _MASKED_BIT_DISABLE(STOP_RING));
+ }
+
+ return (I915_READ_HEAD(ring) & HEAD_ADDR) == 0;
+}
+
+static int init_ring_common(struct intel_engine_cs *ring)
+{
+ struct drm_device *dev = ring->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ringbuffer *ringbuf = ring->buffer;
+ struct drm_i915_gem_object *obj = ringbuf->obj;
+ int ret = 0;
+
+ gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
- /* G45 ring initialization fails to reset head to zero */
- if (head != 0) {
+ if (!stop_ring(ring)) {
+ /* G45 ring initialization often fails to reset head to zero */
DRM_DEBUG_KMS("%s head not reset to zero "
"ctl %08x head %08x tail %08x start %08x\n",
ring->name,
@@ -410,9 +499,7 @@ static int init_ring_common(struct intel_ring_buffer *ring)
I915_READ_TAIL(ring),
I915_READ_START(ring));
- I915_WRITE_HEAD(ring, 0);
-
- if (I915_READ_HEAD(ring) & HEAD_ADDR) {
+ if (!stop_ring(ring)) {
DRM_ERROR("failed to set %s head to zero "
"ctl %08x head %08x tail %08x start %08x\n",
ring->name,
@@ -420,16 +507,23 @@ static int init_ring_common(struct intel_ring_buffer *ring)
I915_READ_HEAD(ring),
I915_READ_TAIL(ring),
I915_READ_START(ring));
+ ret = -EIO;
+ goto out;
}
}
+ if (I915_NEED_GFX_HWS(dev))
+ intel_ring_setup_status_page(ring);
+ else
+ ring_setup_phys_status_page(ring);
+
/* Initialize the ring. This must happen _after_ we've cleared the ring
* registers with the above sequence (the readback of the HEAD registers
* also enforces ordering), otherwise the hw might lose the new ring
* register values. */
I915_WRITE_START(ring, i915_gem_obj_ggtt_offset(obj));
I915_WRITE_CTL(ring,
- ((ring->size - PAGE_SIZE) & RING_NR_PAGES)
+ ((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES)
| RING_VALID);
/* If the head is still not zero, the ring is dead */
@@ -437,12 +531,11 @@ static int init_ring_common(struct intel_ring_buffer *ring)
I915_READ_START(ring) == i915_gem_obj_ggtt_offset(obj) &&
(I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) {
DRM_ERROR("%s initialization failed "
- "ctl %08x head %08x tail %08x start %08x\n",
- ring->name,
- I915_READ_CTL(ring),
- I915_READ_HEAD(ring),
- I915_READ_TAIL(ring),
- I915_READ_START(ring));
+ "ctl %08x (valid? %d) head %08x tail %08x start %08x [expected %08lx]\n",
+ ring->name,
+ I915_READ_CTL(ring), I915_READ_CTL(ring) & RING_VALID,
+ I915_READ_HEAD(ring), I915_READ_TAIL(ring),
+ I915_READ_START(ring), (unsigned long)i915_gem_obj_ggtt_offset(obj));
ret = -EIO;
goto out;
}
@@ -450,23 +543,22 @@ static int init_ring_common(struct intel_ring_buffer *ring)
if (!drm_core_check_feature(ring->dev, DRIVER_MODESET))
i915_kernel_lost_context(ring->dev);
else {
- ring->head = I915_READ_HEAD(ring);
- ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
- ring->space = ring_space(ring);
- ring->last_retired_head = -1;
+ ringbuf->head = I915_READ_HEAD(ring);
+ ringbuf->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
+ ringbuf->space = ring_space(ring);
+ ringbuf->last_retired_head = -1;
}
memset(&ring->hangcheck, 0, sizeof(ring->hangcheck));
out:
- if (HAS_FORCE_WAKE(dev))
- gen6_gt_force_wake_put(dev_priv);
+ gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
return ret;
}
static int
-init_pipe_control(struct intel_ring_buffer *ring)
+init_pipe_control(struct intel_engine_cs *ring)
{
int ret;
@@ -480,9 +572,11 @@ init_pipe_control(struct intel_ring_buffer *ring)
goto err;
}
- i915_gem_object_set_cache_level(ring->scratch.obj, I915_CACHE_LLC);
+ ret = i915_gem_object_set_cache_level(ring->scratch.obj, I915_CACHE_LLC);
+ if (ret)
+ goto err_unref;
- ret = i915_gem_obj_ggtt_pin(ring->scratch.obj, 4096, true, false);
+ ret = i915_gem_obj_ggtt_pin(ring->scratch.obj, 4096, 0);
if (ret)
goto err_unref;
@@ -498,39 +592,42 @@ init_pipe_control(struct intel_ring_buffer *ring)
return 0;
err_unpin:
- i915_gem_object_unpin(ring->scratch.obj);
+ i915_gem_object_ggtt_unpin(ring->scratch.obj);
err_unref:
drm_gem_object_unreference(&ring->scratch.obj->base);
err:
return ret;
}
-static int init_render_ring(struct intel_ring_buffer *ring)
+static int init_render_ring(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret = init_ring_common(ring);
- if (INTEL_INFO(dev)->gen > 3)
+ /* WaTimedSingleVertexDispatch:cl,bw,ctg,elk,ilk,snb */
+ if (INTEL_INFO(dev)->gen >= 4 && INTEL_INFO(dev)->gen < 7)
I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH));
/* We need to disable the AsyncFlip performance optimisations in order
* to use MI_WAIT_FOR_EVENT within the CS. It should already be
* programmed to '1' on all products.
*
- * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv
+ * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv,bdw,chv
*/
if (INTEL_INFO(dev)->gen >= 6)
I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE));
/* Required for the hardware to program scanline values for waiting */
+ /* WaEnableFlushTlbInvalidationMode:snb */
if (INTEL_INFO(dev)->gen == 6)
I915_WRITE(GFX_MODE,
- _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_ALWAYS));
+ _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT));
+ /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */
if (IS_GEN7(dev))
I915_WRITE(GFX_MODE_GEN7,
- _MASKED_BIT_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) |
+ _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT) |
_MASKED_BIT_ENABLE(GFX_REPLAY_MODE));
if (INTEL_INFO(dev)->gen >= 5) {
@@ -547,25 +644,18 @@ static int init_render_ring(struct intel_ring_buffer *ring)
*/
I915_WRITE(CACHE_MODE_0,
_MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB));
-
- /* This is not explicitly set for GEN6, so read the register.
- * see intel_ring_mi_set_context() for why we care.
- * TODO: consider explicitly setting the bit for GEN5
- */
- ring->itlb_before_ctx_switch =
- !!(I915_READ(GFX_MODE) & GFX_TLB_INVALIDATE_ALWAYS);
}
if (INTEL_INFO(dev)->gen >= 6)
I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING));
- if (HAS_L3_GPU_CACHE(dev))
- I915_WRITE_IMR(ring, ~GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
+ if (HAS_L3_DPF(dev))
+ I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev));
return ret;
}
-static void render_ring_cleanup(struct intel_ring_buffer *ring)
+static void render_ring_cleanup(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
@@ -574,27 +664,53 @@ static void render_ring_cleanup(struct intel_ring_buffer *ring)
if (INTEL_INFO(dev)->gen >= 5) {
kunmap(sg_page(ring->scratch.obj->pages->sgl));
- i915_gem_object_unpin(ring->scratch.obj);
+ i915_gem_object_ggtt_unpin(ring->scratch.obj);
}
drm_gem_object_unreference(&ring->scratch.obj->base);
ring->scratch.obj = NULL;
}
-static void
-update_mboxes(struct intel_ring_buffer *ring,
- u32 mmio_offset)
+static int gen6_signal(struct intel_engine_cs *signaller,
+ unsigned int num_dwords)
{
-/* NB: In order to be able to do semaphore MBOX updates for varying number
- * of rings, it's easiest if we round up each individual update to a
- * multiple of 2 (since ring updates must always be a multiple of 2)
- * even though the actual update only requires 3 dwords.
- */
+ struct drm_device *dev = signaller->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *useless;
+ int i, ret;
+
+ /* NB: In order to be able to do semaphore MBOX updates for varying
+ * number of rings, it's easiest if we round up each individual update
+ * to a multiple of 2 (since ring updates must always be a multiple of
+ * 2) even though the actual update only requires 3 dwords.
+ */
#define MBOX_UPDATE_DWORDS 4
- intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
- intel_ring_emit(ring, mmio_offset);
- intel_ring_emit(ring, ring->outstanding_lazy_request);
- intel_ring_emit(ring, MI_NOOP);
+ if (i915_semaphore_is_enabled(dev))
+ num_dwords += ((I915_NUM_RINGS-1) * MBOX_UPDATE_DWORDS);
+ else
+ return intel_ring_begin(signaller, num_dwords);
+
+ ret = intel_ring_begin(signaller, num_dwords);
+ if (ret)
+ return ret;
+#undef MBOX_UPDATE_DWORDS
+
+ for_each_ring(useless, dev_priv, i) {
+ u32 mbox_reg = signaller->semaphore.mbox.signal[i];
+ if (mbox_reg != GEN6_NOSYNC) {
+ intel_ring_emit(signaller, MI_LOAD_REGISTER_IMM(1));
+ intel_ring_emit(signaller, mbox_reg);
+ intel_ring_emit(signaller, signaller->outstanding_lazy_seqno);
+ intel_ring_emit(signaller, MI_NOOP);
+ } else {
+ intel_ring_emit(signaller, MI_NOOP);
+ intel_ring_emit(signaller, MI_NOOP);
+ intel_ring_emit(signaller, MI_NOOP);
+ intel_ring_emit(signaller, MI_NOOP);
+ }
+ }
+
+ return 0;
}
/**
@@ -607,31 +723,19 @@ update_mboxes(struct intel_ring_buffer *ring,
* This acts like a signal in the canonical semaphore.
*/
static int
-gen6_add_request(struct intel_ring_buffer *ring)
+gen6_add_request(struct intel_engine_cs *ring)
{
- struct drm_device *dev = ring->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_ring_buffer *useless;
- int i, ret;
+ int ret;
- ret = intel_ring_begin(ring, ((I915_NUM_RINGS-1) *
- MBOX_UPDATE_DWORDS) +
- 4);
+ ret = ring->semaphore.signal(ring, 4);
if (ret)
return ret;
-#undef MBOX_UPDATE_DWORDS
-
- for_each_ring(useless, dev_priv, i) {
- u32 mbox_reg = ring->signal_mbox[i];
- if (mbox_reg != GEN6_NOSYNC)
- update_mboxes(ring, mbox_reg);
- }
intel_ring_emit(ring, MI_STORE_DWORD_INDEX);
intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
- intel_ring_emit(ring, ring->outstanding_lazy_request);
+ intel_ring_emit(ring, ring->outstanding_lazy_seqno);
intel_ring_emit(ring, MI_USER_INTERRUPT);
- intel_ring_advance(ring);
+ __intel_ring_advance(ring);
return 0;
}
@@ -651,14 +755,15 @@ static inline bool i915_gem_has_seqno_wrapped(struct drm_device *dev,
* @seqno - seqno which the waiter will block on
*/
static int
-gen6_ring_sync(struct intel_ring_buffer *waiter,
- struct intel_ring_buffer *signaller,
+gen6_ring_sync(struct intel_engine_cs *waiter,
+ struct intel_engine_cs *signaller,
u32 seqno)
{
- int ret;
u32 dw1 = MI_SEMAPHORE_MBOX |
MI_SEMAPHORE_COMPARE |
MI_SEMAPHORE_REGISTER;
+ u32 wait_mbox = signaller->semaphore.mbox.wait[waiter->id];
+ int ret;
/* Throughout all of the GEM code, seqno passed implies our current
* seqno is >= the last seqno executed. However for hardware the
@@ -666,8 +771,7 @@ gen6_ring_sync(struct intel_ring_buffer *waiter,
*/
seqno -= 1;
- WARN_ON(signaller->semaphore_register[waiter->id] ==
- MI_SEMAPHORE_SYNC_INVALID);
+ WARN_ON(wait_mbox == MI_SEMAPHORE_SYNC_INVALID);
ret = intel_ring_begin(waiter, 4);
if (ret)
@@ -675,9 +779,7 @@ gen6_ring_sync(struct intel_ring_buffer *waiter,
/* If seqno wrap happened, omit the wait with no-ops */
if (likely(!i915_gem_has_seqno_wrapped(waiter->dev, seqno))) {
- intel_ring_emit(waiter,
- dw1 |
- signaller->semaphore_register[waiter->id]);
+ intel_ring_emit(waiter, dw1 | wait_mbox);
intel_ring_emit(waiter, seqno);
intel_ring_emit(waiter, 0);
intel_ring_emit(waiter, MI_NOOP);
@@ -702,9 +804,9 @@ do { \
} while (0)
static int
-pc_render_add_request(struct intel_ring_buffer *ring)
+pc_render_add_request(struct intel_engine_cs *ring)
{
- u32 scratch_addr = ring->scratch.gtt_offset + 128;
+ u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
int ret;
/* For Ironlake, MI_USER_INTERRUPT was deprecated and apparently
@@ -723,18 +825,18 @@ pc_render_add_request(struct intel_ring_buffer *ring)
PIPE_CONTROL_WRITE_FLUSH |
PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE);
intel_ring_emit(ring, ring->scratch.gtt_offset | PIPE_CONTROL_GLOBAL_GTT);
- intel_ring_emit(ring, ring->outstanding_lazy_request);
+ intel_ring_emit(ring, ring->outstanding_lazy_seqno);
intel_ring_emit(ring, 0);
PIPE_CONTROL_FLUSH(ring, scratch_addr);
- scratch_addr += 128; /* write to separate cachelines */
+ scratch_addr += 2 * CACHELINE_BYTES; /* write to separate cachelines */
PIPE_CONTROL_FLUSH(ring, scratch_addr);
- scratch_addr += 128;
+ scratch_addr += 2 * CACHELINE_BYTES;
PIPE_CONTROL_FLUSH(ring, scratch_addr);
- scratch_addr += 128;
+ scratch_addr += 2 * CACHELINE_BYTES;
PIPE_CONTROL_FLUSH(ring, scratch_addr);
- scratch_addr += 128;
+ scratch_addr += 2 * CACHELINE_BYTES;
PIPE_CONTROL_FLUSH(ring, scratch_addr);
- scratch_addr += 128;
+ scratch_addr += 2 * CACHELINE_BYTES;
PIPE_CONTROL_FLUSH(ring, scratch_addr);
intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE |
@@ -742,53 +844,56 @@ pc_render_add_request(struct intel_ring_buffer *ring)
PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE |
PIPE_CONTROL_NOTIFY);
intel_ring_emit(ring, ring->scratch.gtt_offset | PIPE_CONTROL_GLOBAL_GTT);
- intel_ring_emit(ring, ring->outstanding_lazy_request);
+ intel_ring_emit(ring, ring->outstanding_lazy_seqno);
intel_ring_emit(ring, 0);
- intel_ring_advance(ring);
+ __intel_ring_advance(ring);
return 0;
}
static u32
-gen6_ring_get_seqno(struct intel_ring_buffer *ring, bool lazy_coherency)
+gen6_ring_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency)
{
/* Workaround to force correct ordering between irq and seqno writes on
* ivb (and maybe also on snb) by reading from a CS register (like
* ACTHD) before reading the status page. */
- if (!lazy_coherency)
- intel_ring_get_active_head(ring);
+ if (!lazy_coherency) {
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
+ POSTING_READ(RING_ACTHD(ring->mmio_base));
+ }
+
return intel_read_status_page(ring, I915_GEM_HWS_INDEX);
}
static u32
-ring_get_seqno(struct intel_ring_buffer *ring, bool lazy_coherency)
+ring_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency)
{
return intel_read_status_page(ring, I915_GEM_HWS_INDEX);
}
static void
-ring_set_seqno(struct intel_ring_buffer *ring, u32 seqno)
+ring_set_seqno(struct intel_engine_cs *ring, u32 seqno)
{
intel_write_status_page(ring, I915_GEM_HWS_INDEX, seqno);
}
static u32
-pc_render_get_seqno(struct intel_ring_buffer *ring, bool lazy_coherency)
+pc_render_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency)
{
return ring->scratch.cpu_page[0];
}
static void
-pc_render_set_seqno(struct intel_ring_buffer *ring, u32 seqno)
+pc_render_set_seqno(struct intel_engine_cs *ring, u32 seqno)
{
ring->scratch.cpu_page[0] = seqno;
}
static bool
-gen5_ring_get_irq(struct intel_ring_buffer *ring)
+gen5_ring_get_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
if (!dev->irq_enabled)
@@ -803,10 +908,10 @@ gen5_ring_get_irq(struct intel_ring_buffer *ring)
}
static void
-gen5_ring_put_irq(struct intel_ring_buffer *ring)
+gen5_ring_put_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
@@ -816,10 +921,10 @@ gen5_ring_put_irq(struct intel_ring_buffer *ring)
}
static bool
-i9xx_ring_get_irq(struct intel_ring_buffer *ring)
+i9xx_ring_get_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
if (!dev->irq_enabled)
@@ -837,10 +942,10 @@ i9xx_ring_get_irq(struct intel_ring_buffer *ring)
}
static void
-i9xx_ring_put_irq(struct intel_ring_buffer *ring)
+i9xx_ring_put_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
@@ -853,10 +958,10 @@ i9xx_ring_put_irq(struct intel_ring_buffer *ring)
}
static bool
-i8xx_ring_get_irq(struct intel_ring_buffer *ring)
+i8xx_ring_get_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
if (!dev->irq_enabled)
@@ -874,10 +979,10 @@ i8xx_ring_get_irq(struct intel_ring_buffer *ring)
}
static void
-i8xx_ring_put_irq(struct intel_ring_buffer *ring)
+i8xx_ring_put_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
@@ -889,10 +994,10 @@ i8xx_ring_put_irq(struct intel_ring_buffer *ring)
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
}
-void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
+void intel_ring_setup_status_page(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = ring->dev->dev_private;
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
u32 mmio = 0;
/* The ring status page addresses are no longer next to the rest of
@@ -906,6 +1011,11 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
case BCS:
mmio = BLT_HWS_PGA_GEN7;
break;
+ /*
+ * VCS2 actually doesn't exist on Gen7. Only shut up
+ * gcc switch check warning
+ */
+ case VCS2:
case VCS:
mmio = BSD_HWS_PGA_GEN7;
break;
@@ -916,15 +1026,26 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
} else if (IS_GEN6(ring->dev)) {
mmio = RING_HWS_PGA_GEN6(ring->mmio_base);
} else {
+ /* XXX: gen8 returns to sanity */
mmio = RING_HWS_PGA(ring->mmio_base);
}
I915_WRITE(mmio, (u32)ring->status_page.gfx_addr);
POSTING_READ(mmio);
- /* Flush the TLB for this page */
- if (INTEL_INFO(dev)->gen >= 6) {
+ /*
+ * Flush the TLB for this page
+ *
+ * FIXME: These two bits have disappeared on gen8, so a question
+ * arises: do we still need this and if so how should we go about
+ * invalidating the TLB?
+ */
+ if (INTEL_INFO(dev)->gen >= 6 && INTEL_INFO(dev)->gen < 8) {
u32 reg = RING_INSTPM(ring->mmio_base);
+
+ /* ring should be idle before issuing a sync flush*/
+ WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0);
+
I915_WRITE(reg,
_MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE |
INSTPM_SYNC_FLUSH));
@@ -936,7 +1057,7 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
}
static int
-bsd_ring_flush(struct intel_ring_buffer *ring,
+bsd_ring_flush(struct intel_engine_cs *ring,
u32 invalidate_domains,
u32 flush_domains)
{
@@ -953,7 +1074,7 @@ bsd_ring_flush(struct intel_ring_buffer *ring,
}
static int
-i9xx_add_request(struct intel_ring_buffer *ring)
+i9xx_add_request(struct intel_engine_cs *ring)
{
int ret;
@@ -963,34 +1084,29 @@ i9xx_add_request(struct intel_ring_buffer *ring)
intel_ring_emit(ring, MI_STORE_DWORD_INDEX);
intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
- intel_ring_emit(ring, ring->outstanding_lazy_request);
+ intel_ring_emit(ring, ring->outstanding_lazy_seqno);
intel_ring_emit(ring, MI_USER_INTERRUPT);
- intel_ring_advance(ring);
+ __intel_ring_advance(ring);
return 0;
}
static bool
-gen6_ring_get_irq(struct intel_ring_buffer *ring)
+gen6_ring_get_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
if (!dev->irq_enabled)
return false;
- /* It looks like we need to prevent the gt from suspending while waiting
- * for an notifiy irq, otherwise irqs seem to get lost on at least the
- * blt/bsd rings on ivb. */
- gen6_gt_force_wake_get(dev_priv);
-
spin_lock_irqsave(&dev_priv->irq_lock, flags);
if (ring->irq_refcount++ == 0) {
- if (HAS_L3_GPU_CACHE(dev) && ring->id == RCS)
+ if (HAS_L3_DPF(dev) && ring->id == RCS)
I915_WRITE_IMR(ring,
~(ring->irq_enable_mask |
- GT_RENDER_L3_PARITY_ERROR_INTERRUPT));
+ GT_PARITY_ERROR(dev)));
else
I915_WRITE_IMR(ring, ~ring->irq_enable_mask);
ilk_enable_gt_irq(dev_priv, ring->irq_enable_mask);
@@ -1001,28 +1117,25 @@ gen6_ring_get_irq(struct intel_ring_buffer *ring)
}
static void
-gen6_ring_put_irq(struct intel_ring_buffer *ring)
+gen6_ring_put_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long flags;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
if (--ring->irq_refcount == 0) {
- if (HAS_L3_GPU_CACHE(dev) && ring->id == RCS)
- I915_WRITE_IMR(ring,
- ~GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
+ if (HAS_L3_DPF(dev) && ring->id == RCS)
+ I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev));
else
I915_WRITE_IMR(ring, ~0);
ilk_disable_gt_irq(dev_priv, ring->irq_enable_mask);
}
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
-
- gen6_gt_force_wake_put(dev_priv);
}
static bool
-hsw_vebox_get_irq(struct intel_ring_buffer *ring)
+hsw_vebox_get_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1042,7 +1155,7 @@ hsw_vebox_get_irq(struct intel_ring_buffer *ring)
}
static void
-hsw_vebox_put_irq(struct intel_ring_buffer *ring)
+hsw_vebox_put_irq(struct intel_engine_cs *ring)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1059,9 +1172,55 @@ hsw_vebox_put_irq(struct intel_ring_buffer *ring)
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
}
+static bool
+gen8_ring_get_irq(struct intel_engine_cs *ring)
+{
+ struct drm_device *dev = ring->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ unsigned long flags;
+
+ if (!dev->irq_enabled)
+ return false;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, flags);
+ if (ring->irq_refcount++ == 0) {
+ if (HAS_L3_DPF(dev) && ring->id == RCS) {
+ I915_WRITE_IMR(ring,
+ ~(ring->irq_enable_mask |
+ GT_RENDER_L3_PARITY_ERROR_INTERRUPT));
+ } else {
+ I915_WRITE_IMR(ring, ~ring->irq_enable_mask);
+ }
+ POSTING_READ(RING_IMR(ring->mmio_base));
+ }
+ spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
+
+ return true;
+}
+
+static void
+gen8_ring_put_irq(struct intel_engine_cs *ring)
+{
+ struct drm_device *dev = ring->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, flags);
+ if (--ring->irq_refcount == 0) {
+ if (HAS_L3_DPF(dev) && ring->id == RCS) {
+ I915_WRITE_IMR(ring,
+ ~GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
+ } else {
+ I915_WRITE_IMR(ring, ~0);
+ }
+ POSTING_READ(RING_IMR(ring->mmio_base));
+ }
+ spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
+}
+
static int
-i965_dispatch_execbuffer(struct intel_ring_buffer *ring,
- u32 offset, u32 length,
+i965_dispatch_execbuffer(struct intel_engine_cs *ring,
+ u64 offset, u32 length,
unsigned flags)
{
int ret;
@@ -1083,8 +1242,8 @@ i965_dispatch_execbuffer(struct intel_ring_buffer *ring,
/* Just userspace ABI convention to limit the wa batch bo to a resonable size */
#define I830_BATCH_LIMIT (256*1024)
static int
-i830_dispatch_execbuffer(struct intel_ring_buffer *ring,
- u32 offset, u32 len,
+i830_dispatch_execbuffer(struct intel_engine_cs *ring,
+ u64 offset, u32 len,
unsigned flags)
{
int ret;
@@ -1134,8 +1293,8 @@ i830_dispatch_execbuffer(struct intel_ring_buffer *ring,
}
static int
-i915_dispatch_execbuffer(struct intel_ring_buffer *ring,
- u32 offset, u32 len,
+i915_dispatch_execbuffer(struct intel_engine_cs *ring,
+ u64 offset, u32 len,
unsigned flags)
{
int ret;
@@ -1151,7 +1310,7 @@ i915_dispatch_execbuffer(struct intel_ring_buffer *ring,
return 0;
}
-static void cleanup_status_page(struct intel_ring_buffer *ring)
+static void cleanup_status_page(struct intel_engine_cs *ring)
{
struct drm_i915_gem_object *obj;
@@ -1160,54 +1319,49 @@ static void cleanup_status_page(struct intel_ring_buffer *ring)
return;
kunmap(sg_page(obj->pages->sgl));
- i915_gem_object_unpin(obj);
+ i915_gem_object_ggtt_unpin(obj);
drm_gem_object_unreference(&obj->base);
ring->status_page.obj = NULL;
}
-static int init_status_page(struct intel_ring_buffer *ring)
+static int init_status_page(struct intel_engine_cs *ring)
{
- struct drm_device *dev = ring->dev;
struct drm_i915_gem_object *obj;
- int ret;
- obj = i915_gem_alloc_object(dev, 4096);
- if (obj == NULL) {
- DRM_ERROR("Failed to allocate status page\n");
- ret = -ENOMEM;
- goto err;
- }
+ if ((obj = ring->status_page.obj) == NULL) {
+ int ret;
- i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
+ obj = i915_gem_alloc_object(ring->dev, 4096);
+ if (obj == NULL) {
+ DRM_ERROR("Failed to allocate status page\n");
+ return -ENOMEM;
+ }
- ret = i915_gem_obj_ggtt_pin(obj, 4096, true, false);
- if (ret != 0) {
- goto err_unref;
+ ret = i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
+ if (ret)
+ goto err_unref;
+
+ ret = i915_gem_obj_ggtt_pin(obj, 4096, 0);
+ if (ret) {
+err_unref:
+ drm_gem_object_unreference(&obj->base);
+ return ret;
+ }
+
+ ring->status_page.obj = obj;
}
ring->status_page.gfx_addr = i915_gem_obj_ggtt_offset(obj);
ring->status_page.page_addr = kmap(sg_page(obj->pages->sgl));
- if (ring->status_page.page_addr == NULL) {
- ret = -ENOMEM;
- goto err_unpin;
- }
- ring->status_page.obj = obj;
memset(ring->status_page.page_addr, 0, PAGE_SIZE);
DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n",
ring->name, ring->status_page.gfx_addr);
return 0;
-
-err_unpin:
- i915_gem_object_unpin(obj);
-err_unref:
- drm_gem_object_unreference(&obj->base);
-err:
- return ret;
}
-static int init_phys_status_page(struct intel_ring_buffer *ring)
+static int init_phys_status_page(struct intel_engine_cs *ring)
{
struct drm_i915_private *dev_priv = ring->dev->dev_private;
@@ -1224,46 +1378,26 @@ static int init_phys_status_page(struct intel_ring_buffer *ring)
return 0;
}
-static int intel_init_ring_buffer(struct drm_device *dev,
- struct intel_ring_buffer *ring)
+static int allocate_ring_buffer(struct intel_engine_cs *ring)
{
+ struct drm_device *dev = ring->dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ struct intel_ringbuffer *ringbuf = ring->buffer;
struct drm_i915_gem_object *obj;
- struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
- ring->dev = dev;
- INIT_LIST_HEAD(&ring->active_list);
- INIT_LIST_HEAD(&ring->request_list);
- ring->size = 32 * PAGE_SIZE;
- memset(ring->sync_seqno, 0, sizeof(ring->sync_seqno));
-
- init_waitqueue_head(&ring->irq_queue);
-
- if (I915_NEED_GFX_HWS(dev)) {
- ret = init_status_page(ring);
- if (ret)
- return ret;
- } else {
- BUG_ON(ring->id != RCS);
- ret = init_phys_status_page(ring);
- if (ret)
- return ret;
- }
+ if (intel_ring_initialized(ring))
+ return 0;
obj = NULL;
if (!HAS_LLC(dev))
- obj = i915_gem_object_create_stolen(dev, ring->size);
+ obj = i915_gem_object_create_stolen(dev, ringbuf->size);
if (obj == NULL)
- obj = i915_gem_alloc_object(dev, ring->size);
- if (obj == NULL) {
- DRM_ERROR("Failed to allocate ringbuffer\n");
- ret = -ENOMEM;
- goto err_hws;
- }
-
- ring->obj = obj;
+ obj = i915_gem_alloc_object(dev, ringbuf->size);
+ if (obj == NULL)
+ return -ENOMEM;
- ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, true, false);
+ ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, PIN_MAPPABLE);
if (ret)
goto err_unref;
@@ -1271,142 +1405,159 @@ static int intel_init_ring_buffer(struct drm_device *dev,
if (ret)
goto err_unpin;
- ring->virtual_start =
+ ringbuf->virtual_start =
ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj),
- ring->size);
- if (ring->virtual_start == NULL) {
- DRM_ERROR("Failed to map ringbuffer.\n");
+ ringbuf->size);
+ if (ringbuf->virtual_start == NULL) {
ret = -EINVAL;
goto err_unpin;
}
- ret = ring->init(ring);
- if (ret)
- goto err_unmap;
+ ringbuf->obj = obj;
+ return 0;
+
+err_unpin:
+ i915_gem_object_ggtt_unpin(obj);
+err_unref:
+ drm_gem_object_unreference(&obj->base);
+ return ret;
+}
+
+static int intel_init_ring_buffer(struct drm_device *dev,
+ struct intel_engine_cs *ring)
+{
+ struct intel_ringbuffer *ringbuf = ring->buffer;
+ int ret;
+
+ if (ringbuf == NULL) {
+ ringbuf = kzalloc(sizeof(*ringbuf), GFP_KERNEL);
+ if (!ringbuf)
+ return -ENOMEM;
+ ring->buffer = ringbuf;
+ }
+
+ ring->dev = dev;
+ INIT_LIST_HEAD(&ring->active_list);
+ INIT_LIST_HEAD(&ring->request_list);
+ ringbuf->size = 32 * PAGE_SIZE;
+ memset(ring->semaphore.sync_seqno, 0, sizeof(ring->semaphore.sync_seqno));
+
+ init_waitqueue_head(&ring->irq_queue);
+
+ if (I915_NEED_GFX_HWS(dev)) {
+ ret = init_status_page(ring);
+ if (ret)
+ goto error;
+ } else {
+ BUG_ON(ring->id != RCS);
+ ret = init_phys_status_page(ring);
+ if (ret)
+ goto error;
+ }
+
+ ret = allocate_ring_buffer(ring);
+ if (ret) {
+ DRM_ERROR("Failed to allocate ringbuffer %s: %d\n", ring->name, ret);
+ goto error;
+ }
/* Workaround an erratum on the i830 which causes a hang if
* the TAIL pointer points to within the last 2 cachelines
* of the buffer.
*/
- ring->effective_size = ring->size;
- if (IS_I830(ring->dev) || IS_845G(ring->dev))
- ring->effective_size -= 128;
+ ringbuf->effective_size = ringbuf->size;
+ if (IS_I830(dev) || IS_845G(dev))
+ ringbuf->effective_size -= 2 * CACHELINE_BYTES;
+
+ ret = i915_cmd_parser_init_ring(ring);
+ if (ret)
+ goto error;
+
+ ret = ring->init(ring);
+ if (ret)
+ goto error;
return 0;
-err_unmap:
- iounmap(ring->virtual_start);
-err_unpin:
- i915_gem_object_unpin(obj);
-err_unref:
- drm_gem_object_unreference(&obj->base);
- ring->obj = NULL;
-err_hws:
- cleanup_status_page(ring);
+error:
+ kfree(ringbuf);
+ ring->buffer = NULL;
return ret;
}
-void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring)
+void intel_cleanup_ring_buffer(struct intel_engine_cs *ring)
{
- struct drm_i915_private *dev_priv;
- int ret;
+ struct drm_i915_private *dev_priv = to_i915(ring->dev);
+ struct intel_ringbuffer *ringbuf = ring->buffer;
- if (ring->obj == NULL)
+ if (!intel_ring_initialized(ring))
return;
- /* Disable the ring buffer. The ring must be idle at this point */
- dev_priv = ring->dev->dev_private;
- ret = intel_ring_idle(ring);
- if (ret)
- DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n",
- ring->name, ret);
-
- I915_WRITE_CTL(ring, 0);
+ intel_stop_ring_buffer(ring);
+ WARN_ON(!IS_GEN2(ring->dev) && (I915_READ_MODE(ring) & MODE_IDLE) == 0);
- iounmap(ring->virtual_start);
+ iounmap(ringbuf->virtual_start);
- i915_gem_object_unpin(ring->obj);
- drm_gem_object_unreference(&ring->obj->base);
- ring->obj = NULL;
+ i915_gem_object_ggtt_unpin(ringbuf->obj);
+ drm_gem_object_unreference(&ringbuf->obj->base);
+ ringbuf->obj = NULL;
+ ring->preallocated_lazy_request = NULL;
+ ring->outstanding_lazy_seqno = 0;
if (ring->cleanup)
ring->cleanup(ring);
cleanup_status_page(ring);
-}
-static int intel_ring_wait_seqno(struct intel_ring_buffer *ring, u32 seqno)
-{
- int ret;
-
- ret = i915_wait_seqno(ring, seqno);
- if (!ret)
- i915_gem_retire_requests_ring(ring);
+ i915_cmd_parser_fini_ring(ring);
- return ret;
+ kfree(ringbuf);
+ ring->buffer = NULL;
}
-static int intel_ring_wait_request(struct intel_ring_buffer *ring, int n)
+static int intel_ring_wait_request(struct intel_engine_cs *ring, int n)
{
+ struct intel_ringbuffer *ringbuf = ring->buffer;
struct drm_i915_gem_request *request;
u32 seqno = 0;
int ret;
- i915_gem_retire_requests_ring(ring);
+ if (ringbuf->last_retired_head != -1) {
+ ringbuf->head = ringbuf->last_retired_head;
+ ringbuf->last_retired_head = -1;
- if (ring->last_retired_head != -1) {
- ring->head = ring->last_retired_head;
- ring->last_retired_head = -1;
- ring->space = ring_space(ring);
- if (ring->space >= n)
+ ringbuf->space = ring_space(ring);
+ if (ringbuf->space >= n)
return 0;
}
list_for_each_entry(request, &ring->request_list, list) {
- int space;
-
- if (request->tail == -1)
- continue;
-
- space = request->tail - (ring->tail + I915_RING_FREE_SPACE);
- if (space < 0)
- space += ring->size;
- if (space >= n) {
+ if (__ring_space(request->tail, ringbuf->tail, ringbuf->size) >= n) {
seqno = request->seqno;
break;
}
-
- /* Consume this request in case we need more space than
- * is available and so need to prevent a race between
- * updating last_retired_head and direct reads of
- * I915_RING_HEAD. It also provides a nice sanity check.
- */
- request->tail = -1;
}
if (seqno == 0)
return -ENOSPC;
- ret = intel_ring_wait_seqno(ring, seqno);
+ ret = i915_wait_seqno(ring, seqno);
if (ret)
return ret;
- if (WARN_ON(ring->last_retired_head == -1))
- return -ENOSPC;
-
- ring->head = ring->last_retired_head;
- ring->last_retired_head = -1;
- ring->space = ring_space(ring);
- if (WARN_ON(ring->space < n))
- return -ENOSPC;
+ i915_gem_retire_requests_ring(ring);
+ ringbuf->head = ringbuf->last_retired_head;
+ ringbuf->last_retired_head = -1;
+ ringbuf->space = ring_space(ring);
return 0;
}
-static int ring_wait_for_space(struct intel_ring_buffer *ring, int n)
+static int ring_wait_for_space(struct intel_engine_cs *ring, int n)
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ringbuffer *ringbuf = ring->buffer;
unsigned long end;
int ret;
@@ -1414,7 +1565,9 @@ static int ring_wait_for_space(struct intel_ring_buffer *ring, int n)
if (ret != -ENOSPC)
return ret;
- trace_i915_ring_wait_begin(ring);
+ /* force the tail write in case we have been skipping them */
+ __intel_ring_advance(ring);
+
/* With GEM the hangcheck timer should kick us out of the loop,
* leaving it early runs the risk of corrupting GEM state (due
* to running on almost untested codepaths). But on resume
@@ -1422,15 +1575,17 @@ static int ring_wait_for_space(struct intel_ring_buffer *ring, int n)
* case by choosing an insanely large timeout. */
end = jiffies + 60 * HZ;
+ trace_i915_ring_wait_begin(ring);
do {
- ring->head = I915_READ_HEAD(ring);
- ring->space = ring_space(ring);
- if (ring->space >= n) {
- trace_i915_ring_wait_end(ring);
- return 0;
+ ringbuf->head = I915_READ_HEAD(ring);
+ ringbuf->space = ring_space(ring);
+ if (ringbuf->space >= n) {
+ ret = 0;
+ break;
}
- if (dev->primary->master) {
+ if (!drm_core_check_feature(dev, DRIVER_MODESET) &&
+ dev->primary->master) {
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
if (master_priv->sarea_priv)
master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
@@ -1438,44 +1593,55 @@ static int ring_wait_for_space(struct intel_ring_buffer *ring, int n)
msleep(1);
+ if (dev_priv->mm.interruptible && signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+
ret = i915_gem_check_wedge(&dev_priv->gpu_error,
dev_priv->mm.interruptible);
if (ret)
- return ret;
- } while (!time_after(jiffies, end));
+ break;
+
+ if (time_after(jiffies, end)) {
+ ret = -EBUSY;
+ break;
+ }
+ } while (1);
trace_i915_ring_wait_end(ring);
- return -EBUSY;
+ return ret;
}
-static int intel_wrap_ring_buffer(struct intel_ring_buffer *ring)
+static int intel_wrap_ring_buffer(struct intel_engine_cs *ring)
{
uint32_t __iomem *virt;
- int rem = ring->size - ring->tail;
+ struct intel_ringbuffer *ringbuf = ring->buffer;
+ int rem = ringbuf->size - ringbuf->tail;
- if (ring->space < rem) {
+ if (ringbuf->space < rem) {
int ret = ring_wait_for_space(ring, rem);
if (ret)
return ret;
}
- virt = ring->virtual_start + ring->tail;
+ virt = ringbuf->virtual_start + ringbuf->tail;
rem /= 4;
while (rem--)
iowrite32(MI_NOOP, virt++);
- ring->tail = 0;
- ring->space = ring_space(ring);
+ ringbuf->tail = 0;
+ ringbuf->space = ring_space(ring);
return 0;
}
-int intel_ring_idle(struct intel_ring_buffer *ring)
+int intel_ring_idle(struct intel_engine_cs *ring)
{
u32 seqno;
int ret;
/* We need to add any requests required to flush the objects and ring */
- if (ring->outstanding_lazy_request) {
+ if (ring->outstanding_lazy_seqno) {
ret = i915_add_request(ring, NULL);
if (ret)
return ret;
@@ -1493,39 +1659,49 @@ int intel_ring_idle(struct intel_ring_buffer *ring)
}
static int
-intel_ring_alloc_seqno(struct intel_ring_buffer *ring)
+intel_ring_alloc_seqno(struct intel_engine_cs *ring)
{
- if (ring->outstanding_lazy_request)
+ if (ring->outstanding_lazy_seqno)
return 0;
- return i915_gem_get_seqno(ring->dev, &ring->outstanding_lazy_request);
+ if (ring->preallocated_lazy_request == NULL) {
+ struct drm_i915_gem_request *request;
+
+ request = kmalloc(sizeof(*request), GFP_KERNEL);
+ if (request == NULL)
+ return -ENOMEM;
+
+ ring->preallocated_lazy_request = request;
+ }
+
+ return i915_gem_get_seqno(ring->dev, &ring->outstanding_lazy_seqno);
}
-static int __intel_ring_begin(struct intel_ring_buffer *ring,
- int bytes)
+static int __intel_ring_prepare(struct intel_engine_cs *ring,
+ int bytes)
{
+ struct intel_ringbuffer *ringbuf = ring->buffer;
int ret;
- if (unlikely(ring->tail + bytes > ring->effective_size)) {
+ if (unlikely(ringbuf->tail + bytes > ringbuf->effective_size)) {
ret = intel_wrap_ring_buffer(ring);
if (unlikely(ret))
return ret;
}
- if (unlikely(ring->space < bytes)) {
+ if (unlikely(ringbuf->space < bytes)) {
ret = ring_wait_for_space(ring, bytes);
if (unlikely(ret))
return ret;
}
- ring->space -= bytes;
return 0;
}
-int intel_ring_begin(struct intel_ring_buffer *ring,
+int intel_ring_begin(struct intel_engine_cs *ring,
int num_dwords)
{
- drm_i915_private_t *dev_priv = ring->dev->dev_private;
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
int ret;
ret = i915_gem_check_wedge(&dev_priv->gpu_error,
@@ -1533,19 +1709,46 @@ int intel_ring_begin(struct intel_ring_buffer *ring,
if (ret)
return ret;
+ ret = __intel_ring_prepare(ring, num_dwords * sizeof(uint32_t));
+ if (ret)
+ return ret;
+
/* Preallocate the olr before touching the ring */
ret = intel_ring_alloc_seqno(ring);
if (ret)
return ret;
- return __intel_ring_begin(ring, num_dwords * sizeof(uint32_t));
+ ring->buffer->space -= num_dwords * sizeof(uint32_t);
+ return 0;
+}
+
+/* Align the ring tail to a cacheline boundary */
+int intel_ring_cacheline_align(struct intel_engine_cs *ring)
+{
+ int num_dwords = (ring->buffer->tail & (CACHELINE_BYTES - 1)) / sizeof(uint32_t);
+ int ret;
+
+ if (num_dwords == 0)
+ return 0;
+
+ num_dwords = CACHELINE_BYTES / sizeof(uint32_t) - num_dwords;
+ ret = intel_ring_begin(ring, num_dwords);
+ if (ret)
+ return ret;
+
+ while (num_dwords--)
+ intel_ring_emit(ring, MI_NOOP);
+
+ intel_ring_advance(ring);
+
+ return 0;
}
-void intel_ring_init_seqno(struct intel_ring_buffer *ring, u32 seqno)
+void intel_ring_init_seqno(struct intel_engine_cs *ring, u32 seqno)
{
struct drm_i915_private *dev_priv = ring->dev->dev_private;
- BUG_ON(ring->outstanding_lazy_request);
+ BUG_ON(ring->outstanding_lazy_seqno);
if (INTEL_INFO(ring->dev)->gen >= 6) {
I915_WRITE(RING_SYNC_0(ring->mmio_base), 0);
@@ -1558,21 +1761,10 @@ void intel_ring_init_seqno(struct intel_ring_buffer *ring, u32 seqno)
ring->hangcheck.seqno = seqno;
}
-void intel_ring_advance(struct intel_ring_buffer *ring)
-{
- struct drm_i915_private *dev_priv = ring->dev->dev_private;
-
- ring->tail &= ring->size - 1;
- if (dev_priv->gpu_error.stop_rings & intel_ring_flag(ring))
- return;
- ring->write_tail(ring, ring->tail);
-}
-
-
-static void gen6_bsd_ring_write_tail(struct intel_ring_buffer *ring,
+static void gen6_bsd_ring_write_tail(struct intel_engine_cs *ring,
u32 value)
{
- drm_i915_private_t *dev_priv = ring->dev->dev_private;
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
/* Every tail move must follow the sequence below */
@@ -1602,7 +1794,7 @@ static void gen6_bsd_ring_write_tail(struct intel_ring_buffer *ring,
_MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE));
}
-static int gen6_bsd_ring_flush(struct intel_ring_buffer *ring,
+static int gen6_bsd_ring_flush(struct intel_engine_cs *ring,
u32 invalidate, u32 flush)
{
uint32_t cmd;
@@ -1613,6 +1805,8 @@ static int gen6_bsd_ring_flush(struct intel_ring_buffer *ring,
return ret;
cmd = MI_FLUSH_DW;
+ if (INTEL_INFO(ring->dev)->gen >= 8)
+ cmd += 1;
/*
* Bspec vol 1c.5 - video engine command streamer:
* "If ENABLED, all TLBs will be invalidated once the flush
@@ -1624,15 +1818,44 @@ static int gen6_bsd_ring_flush(struct intel_ring_buffer *ring,
MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW;
intel_ring_emit(ring, cmd);
intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT);
- intel_ring_emit(ring, 0);
+ if (INTEL_INFO(ring->dev)->gen >= 8) {
+ intel_ring_emit(ring, 0); /* upper addr */
+ intel_ring_emit(ring, 0); /* value */
+ } else {
+ intel_ring_emit(ring, 0);
+ intel_ring_emit(ring, MI_NOOP);
+ }
+ intel_ring_advance(ring);
+ return 0;
+}
+
+static int
+gen8_ring_dispatch_execbuffer(struct intel_engine_cs *ring,
+ u64 offset, u32 len,
+ unsigned flags)
+{
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
+ bool ppgtt = dev_priv->mm.aliasing_ppgtt != NULL &&
+ !(flags & I915_DISPATCH_SECURE);
+ int ret;
+
+ ret = intel_ring_begin(ring, 4);
+ if (ret)
+ return ret;
+
+ /* FIXME(BDW): Address space and security selectors. */
+ intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8 | (ppgtt<<8));
+ intel_ring_emit(ring, lower_32_bits(offset));
+ intel_ring_emit(ring, upper_32_bits(offset));
intel_ring_emit(ring, MI_NOOP);
intel_ring_advance(ring);
+
return 0;
}
static int
-hsw_ring_dispatch_execbuffer(struct intel_ring_buffer *ring,
- u32 offset, u32 len,
+hsw_ring_dispatch_execbuffer(struct intel_engine_cs *ring,
+ u64 offset, u32 len,
unsigned flags)
{
int ret;
@@ -1652,8 +1875,8 @@ hsw_ring_dispatch_execbuffer(struct intel_ring_buffer *ring,
}
static int
-gen6_ring_dispatch_execbuffer(struct intel_ring_buffer *ring,
- u32 offset, u32 len,
+gen6_ring_dispatch_execbuffer(struct intel_engine_cs *ring,
+ u64 offset, u32 len,
unsigned flags)
{
int ret;
@@ -1674,7 +1897,7 @@ gen6_ring_dispatch_execbuffer(struct intel_ring_buffer *ring,
/* Blitter support (SandyBridge+) */
-static int gen6_ring_flush(struct intel_ring_buffer *ring,
+static int gen6_ring_flush(struct intel_engine_cs *ring,
u32 invalidate, u32 flush)
{
struct drm_device *dev = ring->dev;
@@ -1686,6 +1909,8 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring,
return ret;
cmd = MI_FLUSH_DW;
+ if (INTEL_INFO(ring->dev)->gen >= 8)
+ cmd += 1;
/*
* Bspec vol 1c.3 - blitter engine command streamer:
* "If ENABLED, all TLBs will be invalidated once the flush
@@ -1697,11 +1922,16 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring,
MI_FLUSH_DW_OP_STOREDW;
intel_ring_emit(ring, cmd);
intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT);
- intel_ring_emit(ring, 0);
- intel_ring_emit(ring, MI_NOOP);
+ if (INTEL_INFO(ring->dev)->gen >= 8) {
+ intel_ring_emit(ring, 0); /* upper addr */
+ intel_ring_emit(ring, 0); /* value */
+ } else {
+ intel_ring_emit(ring, 0);
+ intel_ring_emit(ring, MI_NOOP);
+ }
intel_ring_advance(ring);
- if (IS_GEN7(dev) && flush)
+ if (IS_GEN7(dev) && !invalidate && flush)
return gen7_ring_fbc_flush(ring, FBC_REND_CACHE_CLEAN);
return 0;
@@ -1709,8 +1939,8 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring,
int intel_init_render_ring_buffer(struct drm_device *dev)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *ring = &dev_priv->ring[RCS];
ring->name = "render ring";
ring->id = RCS;
@@ -1721,20 +1951,35 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
ring->flush = gen7_render_ring_flush;
if (INTEL_INFO(dev)->gen == 6)
ring->flush = gen6_render_ring_flush;
- ring->irq_get = gen6_ring_get_irq;
- ring->irq_put = gen6_ring_put_irq;
+ if (INTEL_INFO(dev)->gen >= 8) {
+ ring->flush = gen8_render_ring_flush;
+ ring->irq_get = gen8_ring_get_irq;
+ ring->irq_put = gen8_ring_put_irq;
+ } else {
+ ring->irq_get = gen6_ring_get_irq;
+ ring->irq_put = gen6_ring_put_irq;
+ }
ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT;
ring->get_seqno = gen6_ring_get_seqno;
ring->set_seqno = ring_set_seqno;
- ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_INVALID;
- ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_RV;
- ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_RB;
- ring->semaphore_register[VECS] = MI_SEMAPHORE_SYNC_RVE;
- ring->signal_mbox[RCS] = GEN6_NOSYNC;
- ring->signal_mbox[VCS] = GEN6_VRSYNC;
- ring->signal_mbox[BCS] = GEN6_BRSYNC;
- ring->signal_mbox[VECS] = GEN6_VERSYNC;
+ ring->semaphore.sync_to = gen6_ring_sync;
+ ring->semaphore.signal = gen6_signal;
+ /*
+ * The current semaphore is only applied on pre-gen8 platform.
+ * And there is no VCS2 ring on the pre-gen8 platform. So the
+ * semaphore between RCS and VCS2 is initialized as INVALID.
+ * Gen8 will initialize the sema between VCS2 and RCS later.
+ */
+ ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_RV;
+ ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_RB;
+ ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_RVE;
+ ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.signal[RCS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[VCS] = GEN6_VRSYNC;
+ ring->semaphore.mbox.signal[BCS] = GEN6_BRSYNC;
+ ring->semaphore.mbox.signal[VECS] = GEN6_VERSYNC;
+ ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC;
} else if (IS_GEN5(dev)) {
ring->add_request = pc_render_add_request;
ring->flush = gen4_render_ring_flush;
@@ -1764,6 +2009,8 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
ring->write_tail = ring_write_tail;
if (IS_HASWELL(dev))
ring->dispatch_execbuffer = hsw_ring_dispatch_execbuffer;
+ else if (IS_GEN8(dev))
+ ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer;
else if (INTEL_INFO(dev)->gen >= 6)
ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
else if (INTEL_INFO(dev)->gen >= 4)
@@ -1786,7 +2033,7 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
return -ENOMEM;
}
- ret = i915_gem_obj_ggtt_pin(obj, 0, true, false);
+ ret = i915_gem_obj_ggtt_pin(obj, 0, 0);
if (ret != 0) {
drm_gem_object_unreference(&obj->base);
DRM_ERROR("Failed to ping batch bo\n");
@@ -1802,17 +2049,26 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *ring = &dev_priv->ring[RCS];
+ struct intel_ringbuffer *ringbuf = ring->buffer;
int ret;
+ if (ringbuf == NULL) {
+ ringbuf = kzalloc(sizeof(*ringbuf), GFP_KERNEL);
+ if (!ringbuf)
+ return -ENOMEM;
+ ring->buffer = ringbuf;
+ }
+
ring->name = "render ring";
ring->id = RCS;
ring->mmio_base = RENDER_RING_BASE;
if (INTEL_INFO(dev)->gen >= 6) {
/* non-kms not supported on gen6+ */
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_ringbuf;
}
/* Note: gem is not supported on gen5/ilk without kms (the corresponding
@@ -1847,37 +2103,45 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
INIT_LIST_HEAD(&ring->active_list);
INIT_LIST_HEAD(&ring->request_list);
- ring->size = size;
- ring->effective_size = ring->size;
+ ringbuf->size = size;
+ ringbuf->effective_size = ringbuf->size;
if (IS_I830(ring->dev) || IS_845G(ring->dev))
- ring->effective_size -= 128;
+ ringbuf->effective_size -= 2 * CACHELINE_BYTES;
- ring->virtual_start = ioremap_wc(start, size);
- if (ring->virtual_start == NULL) {
+ ringbuf->virtual_start = ioremap_wc(start, size);
+ if (ringbuf->virtual_start == NULL) {
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err_ringbuf;
}
if (!I915_NEED_GFX_HWS(dev)) {
ret = init_phys_status_page(ring);
if (ret)
- return ret;
+ goto err_vstart;
}
return 0;
+
+err_vstart:
+ iounmap(ringbuf->virtual_start);
+err_ringbuf:
+ kfree(ringbuf);
+ ring->buffer = NULL;
+ return ret;
}
int intel_init_bsd_ring_buffer(struct drm_device *dev)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring = &dev_priv->ring[VCS];
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *ring = &dev_priv->ring[VCS];
ring->name = "bsd ring";
ring->id = VCS;
ring->write_tail = ring_write_tail;
- if (IS_GEN6(dev) || IS_GEN7(dev)) {
+ if (INTEL_INFO(dev)->gen >= 6) {
ring->mmio_base = GEN6_BSD_RING_BASE;
/* gen6 bsd needs a special wa for tail updates */
if (IS_GEN6(dev))
@@ -1886,19 +2150,38 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
ring->add_request = gen6_add_request;
ring->get_seqno = gen6_ring_get_seqno;
ring->set_seqno = ring_set_seqno;
- ring->irq_enable_mask = GT_BSD_USER_INTERRUPT;
- ring->irq_get = gen6_ring_get_irq;
- ring->irq_put = gen6_ring_put_irq;
- ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
- ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_VR;
- ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_INVALID;
- ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_VB;
- ring->semaphore_register[VECS] = MI_SEMAPHORE_SYNC_VVE;
- ring->signal_mbox[RCS] = GEN6_RVSYNC;
- ring->signal_mbox[VCS] = GEN6_NOSYNC;
- ring->signal_mbox[BCS] = GEN6_BVSYNC;
- ring->signal_mbox[VECS] = GEN6_VEVSYNC;
+ if (INTEL_INFO(dev)->gen >= 8) {
+ ring->irq_enable_mask =
+ GT_RENDER_USER_INTERRUPT << GEN8_VCS1_IRQ_SHIFT;
+ ring->irq_get = gen8_ring_get_irq;
+ ring->irq_put = gen8_ring_put_irq;
+ ring->dispatch_execbuffer =
+ gen8_ring_dispatch_execbuffer;
+ } else {
+ ring->irq_enable_mask = GT_BSD_USER_INTERRUPT;
+ ring->irq_get = gen6_ring_get_irq;
+ ring->irq_put = gen6_ring_put_irq;
+ ring->dispatch_execbuffer =
+ gen6_ring_dispatch_execbuffer;
+ }
+ ring->semaphore.sync_to = gen6_ring_sync;
+ ring->semaphore.signal = gen6_signal;
+ /*
+ * The current semaphore is only applied on pre-gen8 platform.
+ * And there is no VCS2 ring on the pre-gen8 platform. So the
+ * semaphore between VCS and VCS2 is initialized as INVALID.
+ * Gen8 will initialize the sema between VCS2 and VCS later.
+ */
+ ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_VR;
+ ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_VB;
+ ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_VVE;
+ ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.signal[RCS] = GEN6_RVSYNC;
+ ring->semaphore.mbox.signal[VCS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[BCS] = GEN6_BVSYNC;
+ ring->semaphore.mbox.signal[VECS] = GEN6_VEVSYNC;
+ ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC;
} else {
ring->mmio_base = BSD_RING_BASE;
ring->flush = bsd_ring_flush;
@@ -1921,10 +2204,63 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
return intel_init_ring_buffer(dev, ring);
}
+/**
+ * Initialize the second BSD ring for Broadwell GT3.
+ * It is noted that this only exists on Broadwell GT3.
+ */
+int intel_init_bsd2_ring_buffer(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *ring = &dev_priv->ring[VCS2];
+
+ if ((INTEL_INFO(dev)->gen != 8)) {
+ DRM_ERROR("No dual-BSD ring on non-BDW machine\n");
+ return -EINVAL;
+ }
+
+ ring->name = "bds2_ring";
+ ring->id = VCS2;
+
+ ring->write_tail = ring_write_tail;
+ ring->mmio_base = GEN8_BSD2_RING_BASE;
+ ring->flush = gen6_bsd_ring_flush;
+ ring->add_request = gen6_add_request;
+ ring->get_seqno = gen6_ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
+ ring->irq_enable_mask =
+ GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT;
+ ring->irq_get = gen8_ring_get_irq;
+ ring->irq_put = gen8_ring_put_irq;
+ ring->dispatch_execbuffer =
+ gen8_ring_dispatch_execbuffer;
+ ring->semaphore.sync_to = gen6_ring_sync;
+ ring->semaphore.signal = gen6_signal;
+ /*
+ * The current semaphore is only applied on the pre-gen8. And there
+ * is no bsd2 ring on the pre-gen8. So now the semaphore_register
+ * between VCS2 and other ring is initialized as invalid.
+ * Gen8 will initialize the sema between VCS2 and other ring later.
+ */
+ ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.signal[RCS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[VCS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[BCS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[VECS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC;
+
+ ring->init = init_ring_common;
+
+ return intel_init_ring_buffer(dev, ring);
+}
+
int intel_init_blt_ring_buffer(struct drm_device *dev)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *ring = &dev_priv->ring[BCS];
ring->name = "blitter ring";
ring->id = BCS;
@@ -1935,19 +2271,36 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
ring->add_request = gen6_add_request;
ring->get_seqno = gen6_ring_get_seqno;
ring->set_seqno = ring_set_seqno;
- ring->irq_enable_mask = GT_BLT_USER_INTERRUPT;
- ring->irq_get = gen6_ring_get_irq;
- ring->irq_put = gen6_ring_put_irq;
- ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
- ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_BR;
- ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_BV;
- ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_INVALID;
- ring->semaphore_register[VECS] = MI_SEMAPHORE_SYNC_BVE;
- ring->signal_mbox[RCS] = GEN6_RBSYNC;
- ring->signal_mbox[VCS] = GEN6_VBSYNC;
- ring->signal_mbox[BCS] = GEN6_NOSYNC;
- ring->signal_mbox[VECS] = GEN6_VEBSYNC;
+ if (INTEL_INFO(dev)->gen >= 8) {
+ ring->irq_enable_mask =
+ GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT;
+ ring->irq_get = gen8_ring_get_irq;
+ ring->irq_put = gen8_ring_put_irq;
+ ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer;
+ } else {
+ ring->irq_enable_mask = GT_BLT_USER_INTERRUPT;
+ ring->irq_get = gen6_ring_get_irq;
+ ring->irq_put = gen6_ring_put_irq;
+ ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
+ }
+ ring->semaphore.sync_to = gen6_ring_sync;
+ ring->semaphore.signal = gen6_signal;
+ /*
+ * The current semaphore is only applied on pre-gen8 platform. And
+ * there is no VCS2 ring on the pre-gen8 platform. So the semaphore
+ * between BCS and VCS2 is initialized as INVALID.
+ * Gen8 will initialize the sema between BCS and VCS2 later.
+ */
+ ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_BR;
+ ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_BV;
+ ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_BVE;
+ ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.signal[RCS] = GEN6_RBSYNC;
+ ring->semaphore.mbox.signal[VCS] = GEN6_VBSYNC;
+ ring->semaphore.mbox.signal[BCS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[VECS] = GEN6_VEBSYNC;
+ ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC;
ring->init = init_ring_common;
return intel_init_ring_buffer(dev, ring);
@@ -1955,8 +2308,8 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
int intel_init_vebox_ring_buffer(struct drm_device *dev)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring = &dev_priv->ring[VECS];
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_engine_cs *ring = &dev_priv->ring[VECS];
ring->name = "video enhancement ring";
ring->id = VECS;
@@ -1967,26 +2320,38 @@ int intel_init_vebox_ring_buffer(struct drm_device *dev)
ring->add_request = gen6_add_request;
ring->get_seqno = gen6_ring_get_seqno;
ring->set_seqno = ring_set_seqno;
- ring->irq_enable_mask = PM_VEBOX_USER_INTERRUPT;
- ring->irq_get = hsw_vebox_get_irq;
- ring->irq_put = hsw_vebox_put_irq;
- ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
- ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_VER;
- ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_VEV;
- ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_VEB;
- ring->semaphore_register[VECS] = MI_SEMAPHORE_SYNC_INVALID;
- ring->signal_mbox[RCS] = GEN6_RVESYNC;
- ring->signal_mbox[VCS] = GEN6_VVESYNC;
- ring->signal_mbox[BCS] = GEN6_BVESYNC;
- ring->signal_mbox[VECS] = GEN6_NOSYNC;
+
+ if (INTEL_INFO(dev)->gen >= 8) {
+ ring->irq_enable_mask =
+ GT_RENDER_USER_INTERRUPT << GEN8_VECS_IRQ_SHIFT;
+ ring->irq_get = gen8_ring_get_irq;
+ ring->irq_put = gen8_ring_put_irq;
+ ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer;
+ } else {
+ ring->irq_enable_mask = PM_VEBOX_USER_INTERRUPT;
+ ring->irq_get = hsw_vebox_get_irq;
+ ring->irq_put = hsw_vebox_put_irq;
+ ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
+ }
+ ring->semaphore.sync_to = gen6_ring_sync;
+ ring->semaphore.signal = gen6_signal;
+ ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_VER;
+ ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_VEV;
+ ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_VEB;
+ ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore.mbox.signal[RCS] = GEN6_RVESYNC;
+ ring->semaphore.mbox.signal[VCS] = GEN6_VVESYNC;
+ ring->semaphore.mbox.signal[BCS] = GEN6_BVESYNC;
+ ring->semaphore.mbox.signal[VECS] = GEN6_NOSYNC;
+ ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC;
ring->init = init_ring_common;
return intel_init_ring_buffer(dev, ring);
}
int
-intel_ring_flush_all_caches(struct intel_ring_buffer *ring)
+intel_ring_flush_all_caches(struct intel_engine_cs *ring)
{
int ret;
@@ -2004,7 +2369,7 @@ intel_ring_flush_all_caches(struct intel_ring_buffer *ring)
}
int
-intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring)
+intel_ring_invalidate_all_caches(struct intel_engine_cs *ring)
{
uint32_t flush_domains;
int ret;
@@ -2022,3 +2387,19 @@ intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring)
ring->gpu_caches_dirty = false;
return 0;
}
+
+void
+intel_stop_ring_buffer(struct intel_engine_cs *ring)
+{
+ int ret;
+
+ if (!intel_ring_initialized(ring))
+ return;
+
+ ret = intel_ring_idle(ring);
+ if (ret && !i915_reset_in_progress(&to_i915(ring->dev)->gpu_error))
+ DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n",
+ ring->name, ret);
+
+ stop_ring(ring);
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 11:12:18 +0000