[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <f9550e6bacea10131ff40dd8981b69eb9251cdcd.1659598090.git.mchehab@kernel.org>
Date: Thu, 4 Aug 2022 09:37:22 +0200
From: Mauro Carvalho Chehab <mchehab@...nel.org>
To: unlisted-recipients:; (no To-header on input)
Cc: Niranjana Vishwanathapura <niranjana.vishwanathapura@...el.com>,
Andi Shyti <andi.shyti@...ux.intel.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Thomas Hellström
<thomas.hellstrom@...ux.intel.com>,
Chris Wilson <chris.p.wilson@...el.com>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Lucas De Marchi <lucas.demarchi@...el.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Matt Roper <matthew.d.roper@...el.com>,
Matthew Auld <matthew.auld@...el.com>,
Michael Cheng <michael.cheng@...el.com>,
Ramalingam C <ramalingam.c@...el.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/3] drm/i915: pass a pointer for tlb seqno at vma_invalidate_tlb()
WRITE_ONCE() should happen at the original var, not on a local
copy of it.
Fixes: 5d36acb7198b ("drm/i915/gt: Batch TLB invalidations")
Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
---
To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover.
See [PATCH v3 0/3] at: https://lore.kernel.org/all/cover.1659598090.git.mchehab@kernel.org/
drivers/gpu/drm/i915/gt/intel_ppgtt.c | 2 +-
drivers/gpu/drm/i915/i915_vma.c | 6 +++---
drivers/gpu/drm/i915/i915_vma.h | 2 +-
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_ppgtt.c b/drivers/gpu/drm/i915/gt/intel_ppgtt.c
index 2da6c82a8bd2..6ee8d1127016 100644
--- a/drivers/gpu/drm/i915/gt/intel_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ppgtt.c
@@ -211,7 +211,7 @@ void ppgtt_unbind_vma(struct i915_address_space *vm,
vm->clear_range(vm, vma_res->start, vma_res->vma_size);
if (vma_res->tlb)
- vma_invalidate_tlb(vm, *vma_res->tlb);
+ vma_invalidate_tlb(vm, vma_res->tlb);
}
static unsigned long pd_count(u64 size, int shift)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 84a9ccbc5fc5..260371716490 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -1308,7 +1308,7 @@ I915_SELFTEST_EXPORT int i915_vma_get_pages(struct i915_vma *vma)
return err;
}
-void vma_invalidate_tlb(struct i915_address_space *vm, u32 tlb)
+void vma_invalidate_tlb(struct i915_address_space *vm, u32 *tlb)
{
/*
* Before we release the pages that were bound by this vma, we
@@ -1318,7 +1318,7 @@ void vma_invalidate_tlb(struct i915_address_space *vm, u32 tlb)
* the most recent TLB invalidation seqno, and if we have not yet
* flushed the TLBs upon release, perform a full invalidation.
*/
- WRITE_ONCE(tlb, intel_gt_next_invalidate_tlb_full(vm->gt));
+ WRITE_ONCE(*tlb, intel_gt_next_invalidate_tlb_full(vm->gt));
}
static void __vma_put_pages(struct i915_vma *vma, unsigned int count)
@@ -1971,7 +1971,7 @@ struct dma_fence *__i915_vma_evict(struct i915_vma *vma, bool async)
dma_fence_put(unbind_fence);
unbind_fence = NULL;
}
- vma_invalidate_tlb(vma->vm, vma->obj->mm.tlb);
+ vma_invalidate_tlb(vma->vm, &vma->obj->mm.tlb);
}
/*
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index 5048eed536da..33a58f605d75 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -213,7 +213,7 @@ bool i915_vma_misplaced(const struct i915_vma *vma,
u64 size, u64 alignment, u64 flags);
void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
void i915_vma_revoke_mmap(struct i915_vma *vma);
-void vma_invalidate_tlb(struct i915_address_space *vm, u32 tlb);
+void vma_invalidate_tlb(struct i915_address_space *vm, u32 *tlb);
struct dma_fence *__i915_vma_evict(struct i915_vma *vma, bool async);
int __i915_vma_unbind(struct i915_vma *vma);
int __must_check i915_vma_unbind(struct i915_vma *vma);
--
2.37.1
Powered by blists - more mailing lists