summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/i915_vma.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
commit01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
treeb406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/gpu/drm/i915/i915_vma.c
parentAdding upstream version 6.7.12. (diff)
downloadlinux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz
linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_vma.c')
-rw-r--r--drivers/gpu/drm/i915/i915_vma.c50
1 files changed, 43 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index d09aad34ba..b70715b141 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -34,6 +34,7 @@
#include "gt/intel_engine.h"
#include "gt/intel_engine_heartbeat.h"
#include "gt/intel_gt.h"
+#include "gt/intel_gt_pm.h"
#include "gt/intel_gt_requests.h"
#include "gt/intel_tlb.h"
@@ -103,12 +104,42 @@ static inline struct i915_vma *active_to_vma(struct i915_active *ref)
static int __i915_vma_active(struct i915_active *ref)
{
- return i915_vma_tryget(active_to_vma(ref)) ? 0 : -ENOENT;
+ struct i915_vma *vma = active_to_vma(ref);
+
+ if (!i915_vma_tryget(vma))
+ return -ENOENT;
+
+ /*
+ * Exclude global GTT VMA from holding a GT wakeref
+ * while active, otherwise GPU never goes idle.
+ */
+ if (!i915_vma_is_ggtt(vma)) {
+ /*
+ * Since we and our _retire() counterpart can be
+ * called asynchronously, storing a wakeref tracking
+ * handle inside struct i915_vma is not safe, and
+ * there is no other good place for that. Hence,
+ * use untracked variants of intel_gt_pm_get/put().
+ */
+ intel_gt_pm_get_untracked(vma->vm->gt);
+ }
+
+ return 0;
}
static void __i915_vma_retire(struct i915_active *ref)
{
- i915_vma_put(active_to_vma(ref));
+ struct i915_vma *vma = active_to_vma(ref);
+
+ if (!i915_vma_is_ggtt(vma)) {
+ /*
+ * Since we can be called from atomic contexts,
+ * use an async variant of intel_gt_pm_put().
+ */
+ intel_gt_pm_put_async_untracked(vma->vm->gt);
+ }
+
+ i915_vma_put(vma);
}
static struct i915_vma *
@@ -1404,7 +1435,7 @@ int i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww,
struct i915_vma_work *work = NULL;
struct dma_fence *moving = NULL;
struct i915_vma_resource *vma_res = NULL;
- intel_wakeref_t wakeref = 0;
+ intel_wakeref_t wakeref;
unsigned int bound;
int err;
@@ -1424,8 +1455,14 @@ int i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww,
if (err)
return err;
- if (flags & PIN_GLOBAL)
- wakeref = intel_runtime_pm_get(&vma->vm->i915->runtime_pm);
+ /*
+ * In case of a global GTT, we must hold a runtime-pm wakeref
+ * while global PTEs are updated. In other cases, we hold
+ * the rpm reference while the VMA is active. Since runtime
+ * resume may require allocations, which are forbidden inside
+ * vm->mutex, get the first rpm wakeref outside of the mutex.
+ */
+ wakeref = intel_runtime_pm_get(&vma->vm->i915->runtime_pm);
if (flags & vma->vm->bind_async_flags) {
/* lock VM */
@@ -1561,8 +1598,7 @@ err_fence:
if (work)
dma_fence_work_commit_imm(&work->base);
err_rpm:
- if (wakeref)
- intel_runtime_pm_put(&vma->vm->i915->runtime_pm, wakeref);
+ intel_runtime_pm_put(&vma->vm->i915->runtime_pm, wakeref);
if (moving)
dma_fence_put(moving);