linux-kernel - [PATCH AUTOSEL 6.12 050/486] drm/amdkfd: set precise mem ops caps to disabled for gfx 11 and 12

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Message-Id: <20250505223922.2682012-50-sashal@kernel.org>
Date: Mon,  5 May 2025 18:32:06 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Jonathan Kim <jonathan.kim@....com>,
	Lancelot Six <lancelot.six@....com>,
	Harish Kasiviswanathan <harish.kasiviswanathan@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	Felix.Kuehling@....com,
	christian.koenig@....com,
	airlied@...il.com,
	simona@...ll.ch,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.12 050/486] drm/amdkfd: set precise mem ops caps to disabled for gfx 11 and 12

From: Jonathan Kim <jonathan.kim@....com>

[ Upstream commit f82d27dcff939d3cbecbc60e1b71e2518c37e81d ]

Clause instructions with precise memory enabled currently hang the
shader so set capabilities flag to disabled since it's unsafe to use
for debugging.

Signed-off-by: Jonathan Kim <jonathan.kim@....com>
Tested-by: Lancelot Six <lancelot.six@....com>
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanathan@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 3871591c9aec9..bcb5cdc4a9d81 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -2002,10 +2002,6 @@ static void kfd_topology_set_capabilities(struct kfd_topology_device *dev)
 		dev->node_props.debug_prop |= HSA_DBG_WATCH_ADDR_MASK_LO_BIT_GFX10 |
 					HSA_DBG_WATCH_ADDR_MASK_HI_BIT;
 
-		if (KFD_GC_VERSION(dev->gpu) >= IP_VERSION(11, 0, 0))
-			dev->node_props.capability |=
-				HSA_CAP_TRAP_DEBUG_PRECISE_MEMORY_OPERATIONS_SUPPORTED;
-
 		if (KFD_GC_VERSION(dev->gpu) >= IP_VERSION(12, 0, 0))
 			dev->node_props.capability |=
 				HSA_CAP_TRAP_DEBUG_PRECISE_ALU_OPERATIONS_SUPPORTED;
-- 
2.39.5