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From: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
To: <dri-devel@lists.freedesktop.org>,
	<amd-gfx@lists.freedesktop.org>, <matthew.auld@intel.com>
Cc: <christian.koenig@amd.com>, <alexander.deucher@amd.com>,
	"Arunpravin Paneer Selvam" <Arunpravin.PaneerSelvam@amd.com>
Subject: [PATCH] drm/buddy: Fix the range bias clear memory allocation issue
Date: Mon, 6 May 2024 19:08:46 +0530	[thread overview]
Message-ID: <20240506133846.4362-1-Arunpravin.PaneerSelvam@amd.com> (raw)

Problem statement: During the system boot time, an application request
for the bulk volume of cleared range bias memory when the clear_avail
is zero, we dont fallback into normal allocation method as we had an
unnecessary clear_avail check which prevents the fallback method leads
to fb allocation failure following system goes into unresponsive state.

Solution: Remove the unnecessary clear_avail check in the range bias
allocation function.

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Fixes: 96950929eb23 ("drm/buddy: Implement tracking clear page feature")
---
 drivers/gpu/drm/drm_buddy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_buddy.c b/drivers/gpu/drm/drm_buddy.c
index 284ebae71cc4..831929ac95eb 100644
--- a/drivers/gpu/drm/drm_buddy.c
+++ b/drivers/gpu/drm/drm_buddy.c
@@ -574,7 +574,7 @@ __drm_buddy_alloc_range_bias(struct drm_buddy *mm,
 
 	block = __alloc_range_bias(mm, start, end, order,
 				   flags, fallback);
-	if (IS_ERR(block) && mm->clear_avail)
+	if (IS_ERR(block))
 		return __alloc_range_bias(mm, start, end, order,
 					  flags, !fallback);
 
-- 
2.25.1


             reply	other threads:[~2024-05-06 13:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-06 13:38 Arunpravin Paneer Selvam [this message]
2024-05-07  8:35 ` [PATCH] drm/buddy: Fix the range bias clear memory allocation issue Matthew Auld
  -- strict thread matches above, loose matches on Subject: below --
2024-05-08  6:57 Arunpravin Paneer Selvam
2024-05-08  8:41 ` Daniel Vetter
2024-05-12  8:03   ` Paneer Selvam, Arunpravin

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