]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
drm/amdkfd: Fix a bug in SDMA RLC queue counting under HWS mode
authorYong Zhao <Yong.Zhao@amd.com>
Thu, 30 Jan 2020 00:55:47 +0000 (19:55 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 24 Feb 2020 07:36:32 +0000 (08:36 +0100)
commit25c85d8574d8e4466a6334325a5ab5a3aab3c4c2
treece85099b1fee1bb0fc32254c229076f3d51798c4
parentdff5d0fc77a5a1aeb61297b168a3ba0ddd252846
drm/amdkfd: Fix a bug in SDMA RLC queue counting under HWS mode

[ Upstream commit f38abc15d157b7b31fa7f651dc8bf92858c963f8 ]

The sdma_queue_count increment should be done before
execute_queues_cpsch(), which calls pm_calc_rlib_size() where
sdma_queue_count is used to calculate whether over_subscription is
triggered.

With the previous code, when a SDMA queue is created,
compute_queue_count in pm_calc_rlib_size() is one more than the
actual compute queue number, because the queue_count has been
incremented while sdma_queue_count has not. This patch fixes that.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c