Commit dc28d574 authored by Dave Airlie's avatar Dave Airlie

Merge tag 'drm-intel-next-fixes-2019-05-15' of...

Merge tag 'drm-intel-next-fixes-2019-05-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Disable framebuffer compression on Geminilake
- Fixes for HSW EDP fastset and a IRQ handler vs. RCU race
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190515074817.GA10472@jlahtine-desk.ger.corp.intel.com
parents f266fdc7 c36beba6
......@@ -29,6 +29,7 @@
EXPORT_TRACEPOINT_SYMBOL(dma_fence_emit);
EXPORT_TRACEPOINT_SYMBOL(dma_fence_enable_signal);
EXPORT_TRACEPOINT_SYMBOL(dma_fence_signaled);
static DEFINE_SPINLOCK(dma_fence_stub_lock);
static struct dma_fence dma_fence_stub;
......
......@@ -452,6 +452,7 @@ void __i915_request_submit(struct i915_request *request)
set_bit(I915_FENCE_FLAG_ACTIVE, &request->fence.flags);
if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &request->fence.flags) &&
!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &request->fence.flags) &&
!i915_request_enable_breadcrumb(request))
intel_engine_queue_breadcrumbs(engine);
......
......@@ -23,6 +23,7 @@
*/
#include <linux/kthread.h>
#include <trace/events/dma_fence.h>
#include <uapi/linux/sched/types.h>
#include "i915_drv.h"
......@@ -80,9 +81,39 @@ static inline bool __request_completed(const struct i915_request *rq)
return i915_seqno_passed(__hwsp_seqno(rq), rq->fence.seqno);
}
static bool
__dma_fence_signal(struct dma_fence *fence)
{
return !test_and_set_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags);
}
static void
__dma_fence_signal__timestamp(struct dma_fence *fence, ktime_t timestamp)
{
fence->timestamp = timestamp;
set_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags);
trace_dma_fence_signaled(fence);
}
static void
__dma_fence_signal__notify(struct dma_fence *fence)
{
struct dma_fence_cb *cur, *tmp;
lockdep_assert_held(fence->lock);
lockdep_assert_irqs_disabled();
list_for_each_entry_safe(cur, tmp, &fence->cb_list, node) {
INIT_LIST_HEAD(&cur->node);
cur->func(fence, cur);
}
INIT_LIST_HEAD(&fence->cb_list);
}
void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine)
{
struct intel_breadcrumbs *b = &engine->breadcrumbs;
const ktime_t timestamp = ktime_get();
struct intel_context *ce, *cn;
struct list_head *pos, *next;
LIST_HEAD(signal);
......@@ -104,6 +135,10 @@ void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine)
GEM_BUG_ON(!test_bit(I915_FENCE_FLAG_SIGNAL,
&rq->fence.flags));
clear_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags);
if (!__dma_fence_signal(&rq->fence))
continue;
/*
* Queue for execution after dropping the signaling
......@@ -111,14 +146,6 @@ void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine)
* more signalers to the same context or engine.
*/
i915_request_get(rq);
/*
* We may race with direct invocation of
* dma_fence_signal(), e.g. i915_request_retire(),
* so we need to acquire our reference to the request
* before we cancel the breadcrumb.
*/
clear_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags);
list_add_tail(&rq->signal_link, &signal);
}
......@@ -141,7 +168,12 @@ void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine)
struct i915_request *rq =
list_entry(pos, typeof(*rq), signal_link);
dma_fence_signal(&rq->fence);
__dma_fence_signal__timestamp(&rq->fence, timestamp);
spin_lock(&rq->lock);
__dma_fence_signal__notify(&rq->fence);
spin_unlock(&rq->lock);
i915_request_put(rq);
}
}
......@@ -243,19 +275,17 @@ void intel_engine_fini_breadcrumbs(struct intel_engine_cs *engine)
bool i915_request_enable_breadcrumb(struct i915_request *rq)
{
struct intel_breadcrumbs *b = &rq->engine->breadcrumbs;
lockdep_assert_held(&rq->lock);
lockdep_assert_irqs_disabled();
GEM_BUG_ON(test_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags));
if (!test_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags))
return true;
spin_lock(&b->irq_lock);
if (test_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags) &&
!__request_completed(rq)) {
if (test_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags)) {
struct intel_breadcrumbs *b = &rq->engine->breadcrumbs;
struct intel_context *ce = rq->hw_context;
struct list_head *pos;
spin_lock(&b->irq_lock);
GEM_BUG_ON(test_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags));
__intel_breadcrumbs_arm_irq(b);
/*
......@@ -284,8 +314,8 @@ bool i915_request_enable_breadcrumb(struct i915_request *rq)
list_move_tail(&ce->signal_link, &b->signalers);
set_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags);
}
spin_unlock(&b->irq_lock);
}
return !__request_completed(rq);
}
......@@ -294,9 +324,15 @@ void i915_request_cancel_breadcrumb(struct i915_request *rq)
{
struct intel_breadcrumbs *b = &rq->engine->breadcrumbs;
if (!test_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags))
return;
lockdep_assert_held(&rq->lock);
lockdep_assert_irqs_disabled();
/*
* We must wait for b->irq_lock so that we know the interrupt handler
* has released its reference to the intel_context and has completed
* the DMA_FENCE_FLAG_SIGNALED_BIT/I915_FENCE_FLAG_SIGNAL dance (if
* required).
*/
spin_lock(&b->irq_lock);
if (test_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags)) {
struct intel_context *ce = rq->hw_context;
......
......@@ -12082,6 +12082,7 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
struct intel_crtc_state *pipe_config,
bool adjust)
{
struct intel_crtc *crtc = to_intel_crtc(current_config->base.crtc);
bool ret = true;
bool fixup_inherited = adjust &&
(current_config->base.mode.private_flags & I915_MODE_FLAG_INHERITED) &&
......@@ -12303,6 +12304,14 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
PIPE_CONF_CHECK_X(gmch_pfit.pgm_ratios);
PIPE_CONF_CHECK_X(gmch_pfit.lvds_border_bits);
/*
* Changing the EDP transcoder input mux
* (A_ONOFF vs. A_ON) requires a full modeset.
*/
if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A &&
current_config->cpu_transcoder == TRANSCODER_EDP)
PIPE_CONF_CHECK_BOOL(pch_pfit.enabled);
if (!adjust) {
PIPE_CONF_CHECK_I(pipe_src_w);
PIPE_CONF_CHECK_I(pipe_src_h);
......
......@@ -1280,6 +1280,10 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
if (!HAS_FBC(dev_priv))
return 0;
/* https://bugs.freedesktop.org/show_bug.cgi?id=108085 */
if (IS_GEMINILAKE(dev_priv))
return 0;
if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9)
return 1;
......
......@@ -23,7 +23,6 @@
*/
#include <linux/circ_buf.h>
#include <trace/events/dma_fence.h>
#include "intel_guc_submission.h"
#include "intel_lrc_reg.h"
......
......@@ -311,10 +311,17 @@ intel_crtc_crc_setup_workarounds(struct intel_crtc *crtc, bool enable)
pipe_config->base.mode_changed = pipe_config->has_psr;
pipe_config->crc_enabled = enable;
if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A) {
if (IS_HASWELL(dev_priv) &&
pipe_config->base.active && crtc->pipe == PIPE_A &&
pipe_config->cpu_transcoder == TRANSCODER_EDP) {
bool old_need_power_well = pipe_config->pch_pfit.enabled ||
pipe_config->pch_pfit.force_thru;
bool new_need_power_well = pipe_config->pch_pfit.enabled ||
enable;
pipe_config->pch_pfit.force_thru = enable;
if (pipe_config->cpu_transcoder == TRANSCODER_EDP &&
pipe_config->pch_pfit.enabled != enable)
if (old_need_power_well != new_need_power_well)
pipe_config->base.connectors_changed = true;
}
......
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