This is a note to let you know that I've just added the patch titled
drm/radeon: consolidate sdma hdp flushing code for CIK
to the 3.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-consolidate-sdma-hdp-flushing-code-for-cik.patch
and it can be found in the queue-3.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ca113f6baeb314a66463c35565b4f7955c484000 Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Thu, 9 Jan 2014 16:23:37 -0500
Subject: drm/radeon: consolidate sdma hdp flushing code for CIK
From: Alex Deucher <[email protected]>
commit ca113f6baeb314a66463c35565b4f7955c484000 upstream.
It's used in several places so move to a common shared
function.
Signed-off-by: Alex Deucher <[email protected]>
Cc: Tom Stellard <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/cik_sdma.c | 35 +++++++++++++++++++++++------------
1 file changed, 23 insertions(+), 12 deletions(-)
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -88,6 +88,27 @@ void cik_sdma_ring_ib_execute(struct rad
}
/**
+ * cik_sdma_hdp_flush_ring_emit - emit an hdp flush on the DMA ring
+ *
+ * @rdev: radeon_device pointer
+ * @ridx: radeon ring index
+ *
+ * Emit an hdp flush packet on the requested DMA ring.
+ */
+static void cik_sdma_hdp_flush_ring_emit(struct radeon_device *rdev,
+ int ridx)
+{
+ struct radeon_ring *ring = &rdev->ring[ridx];
+
+ /* We should be using the new POLL_REG_MEM special op packet here
+ * but it causes sDMA to hang sometimes
+ */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2);
+ radeon_ring_write(ring, 0);
+}
+
+/**
* cik_sdma_fence_ring_emit - emit a fence on the DMA ring
*
* @rdev: radeon_device pointer
@@ -111,12 +132,7 @@ void cik_sdma_fence_ring_emit(struct rad
/* generate an interrupt */
radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
/* flush HDP */
- /* We should be using the new POLL_REG_MEM special op packet here
- * but it causes sDMA to hang sometimes
- */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2);
- radeon_ring_write(ring, 0);
+ cik_sdma_hdp_flush_ring_emit(rdev, fence->ring);
}
/**
@@ -747,12 +763,7 @@ void cik_dma_vm_flush(struct radeon_devi
radeon_ring_write(ring, VMID(0));
/* flush HDP */
- /* We should be using the new POLL_REG_MEM special op packet here
- * but it causes sDMA to hang sometimes
- */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2);
- radeon_ring_write(ring, 0);
+ cik_sdma_hdp_flush_ring_emit(rdev, ridx);
/* flush TLB */
radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
Patches currently in stable-queue which might be from [email protected]
are
queue-3.13/drm-radeon-cik-use-poll_reg_mem-special-op-for-sdma-hdp.patch
queue-3.13/drm-radeon-fix-uvd-irq-support-on-si.patch
queue-3.13/drm-radeon-fix-uvd-irq-support-on-7xx.patch
queue-3.13/drm-radeon-consolidate-sdma-hdp-flushing-code-for-cik.patch
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