linux-kernel - [PATCH 66/83] hsa/radeon: Fix number of pipes per ME

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Date:	Fri, 11 Jul 2014 00:54:22 +0300
From:	Oded Gabbay <oded.gabbay@...il.com>
To:	David Airlie <airlied@...ux.ie>,
	Alex Deucher <alexander.deucher@....com>,
	Jerome Glisse <j.glisse@...il.com>
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	John Bridgman <John.Bridgman@....com>,
	Andrew Lewycky <Andrew.Lewycky@....com>,
	Joerg Roedel <joro@...tes.org>, Ben Goz <ben.goz@....com>,
	Oded Gabbay <oded.gabbay@....com>
Subject: [PATCH 66/83] hsa/radeon: Fix number of pipes per ME

From: Ben Goz <ben.goz@....com>

Signed-off-by: Ben Goz <ben.goz@....com>
Signed-off-by: Oded Gabbay <oded.gabbay@....com>
---
 drivers/gpu/hsa/radeon/kfd_device_queue_manager.c | 2 +-
 drivers/gpu/hsa/radeon/kfd_device_queue_manager.h | 2 +-
 drivers/gpu/hsa/radeon/kfd_packet_manager.c       | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c b/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c
index 3e1def1..5ec8da7 100644
--- a/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c
+++ b/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c
@@ -55,7 +55,7 @@ static inline unsigned int get_first_pipe(struct device_queue_manager *dqm)
 
 static inline unsigned int get_pipes_num_cpsch(void)
 {
-	return PIPE_PER_ME_CP_SCHEDULING - 1;
+	return PIPE_PER_ME_CP_SCHEDULING;
 }
 
 static unsigned int get_sh_mem_bases_nybble_64(struct kfd_process *process, struct kfd_dev *dev)
diff --git a/drivers/gpu/hsa/radeon/kfd_device_queue_manager.h b/drivers/gpu/hsa/radeon/kfd_device_queue_manager.h
index 57dc636..037eaf8 100644
--- a/drivers/gpu/hsa/radeon/kfd_device_queue_manager.h
+++ b/drivers/gpu/hsa/radeon/kfd_device_queue_manager.h
@@ -31,7 +31,7 @@
 
 #define QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS	(500)
 #define QUEUES_PER_PIPE				(8)
-#define PIPE_PER_ME_CP_SCHEDULING		(4)
+#define PIPE_PER_ME_CP_SCHEDULING		(3)
 #define CIK_VMID_NUM				(8)
 #define KFD_VMID_START_OFFSET			(8)
 #define VMID_PER_DEVICE				CIK_VMID_NUM
diff --git a/drivers/gpu/hsa/radeon/kfd_packet_manager.c b/drivers/gpu/hsa/radeon/kfd_packet_manager.c
index 3fc8c34..621a720 100644
--- a/drivers/gpu/hsa/radeon/kfd_packet_manager.c
+++ b/drivers/gpu/hsa/radeon/kfd_packet_manager.c
@@ -62,7 +62,7 @@ static void pm_calc_rlib_size(struct packet_manager *pm, unsigned int *rlib_size
 	/* check if there is over subscription*/
 	*over_subscription = false;
 	if ((process_count >= VMID_PER_DEVICE) ||
-			queue_count >= PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE) {
+			queue_count > PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE) {
 		*over_subscription = true;
 		pr_debug("kfd: over subscribed runlist\n");
 	}
-- 
1.9.1

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