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Groups > linux.kernel > #1167311

[PATCH 3.13.y-ckt 045/122] drm/radeon: disable semaphores for UVD V1 (v2)

From Kamal Mostafa <kamal@canonical.com>
Newsgroups linux.kernel
Subject [PATCH 3.13.y-ckt 045/122] drm/radeon: disable semaphores for UVD V1 (v2)
Date 2015-06-18 01:00 +0200
Message-ID <pCutl-6Ve-35@gated-at.bofh.it> (permalink)
References <pCu0j-6mo-39@gated-at.bofh.it>
Organization linux.* mail to news gateway

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3.13.11-ckt22 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>

commit 013ead48a843442e63b9426e3bd5df18ca5d054a upstream.

Hardware doesn't seem to work correctly, just block userspace in this case.

v2: add missing defines

Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=85320

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/radeon/radeon_asic.c |  2 +-
 drivers/gpu/drm/radeon/radeon_asic.h |  4 ++++
 drivers/gpu/drm/radeon/rv770d.h      |  3 +++
 drivers/gpu/drm/radeon/uvd_v1_0.c    | 14 ++------------
 drivers/gpu/drm/radeon/uvd_v2_2.c    | 29 +++++++++++++++++++++++++++++
 5 files changed, 39 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 552edbd..1561634 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1157,7 +1157,7 @@ static struct radeon_asic rs780_asic = {
 static struct radeon_asic_ring rv770_uvd_ring = {
 	.ib_execute = &uvd_v1_0_ib_execute,
 	.emit_fence = &uvd_v2_2_fence_emit,
-	.emit_semaphore = &uvd_v1_0_semaphore_emit,
+	.emit_semaphore = &uvd_v2_2_semaphore_emit,
 	.cs_parse = &radeon_uvd_cs_parse,
 	.ring_test = &uvd_v1_0_ring_test,
 	.ib_test = &uvd_v1_0_ib_test,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index c9fd97b..8e10643 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -813,6 +813,10 @@ void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int uvd_v2_2_resume(struct radeon_device *rdev);
 void uvd_v2_2_fence_emit(struct radeon_device *rdev,
 			 struct radeon_fence *fence);
+bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev,
+			     struct radeon_ring *ring,
+			     struct radeon_semaphore *semaphore,
+			     bool emit_wait);
 
 /* uvd v3.1 */
 bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h
index 1ae2771..68ae189 100644
--- a/drivers/gpu/drm/radeon/rv770d.h
+++ b/drivers/gpu/drm/radeon/rv770d.h
@@ -982,6 +982,9 @@
 			 ((n) & 0x3FFF) << 16)
 
 /* UVD */
+#define UVD_SEMA_ADDR_LOW				0xef00
+#define UVD_SEMA_ADDR_HIGH				0xef04
+#define UVD_SEMA_CMD					0xef08
 #define UVD_GPCOM_VCPU_CMD				0xef0c
 #define UVD_GPCOM_VCPU_DATA0				0xef10
 #define UVD_GPCOM_VCPU_DATA1				0xef14
diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c
index c310a0a..0fa9009 100644
--- a/drivers/gpu/drm/radeon/uvd_v1_0.c
+++ b/drivers/gpu/drm/radeon/uvd_v1_0.c
@@ -365,18 +365,8 @@ bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait)
 {
-	uint64_t addr = semaphore->gpu_addr;
-
-	radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0));
-	radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-
-	radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));
-	radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-
-	radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
-	radeon_ring_write(ring, emit_wait ? 1 : 0);
-
-	return true;
+	/* disable semaphores for UVD V1 hardware */
+	return false;
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/uvd_v2_2.c b/drivers/gpu/drm/radeon/uvd_v2_2.c
index 824550d..207e8cf 100644
--- a/drivers/gpu/drm/radeon/uvd_v2_2.c
+++ b/drivers/gpu/drm/radeon/uvd_v2_2.c
@@ -61,6 +61,35 @@ void uvd_v2_2_fence_emit(struct radeon_device *rdev,
 }
 
 /**
+ * uvd_v2_2_semaphore_emit - emit semaphore command
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ * @semaphore: semaphore to emit commands for
+ * @emit_wait: true if we should emit a wait command
+ *
+ * Emit a semaphore command (either wait or signal) to the UVD ring.
+ */
+bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev,
+			     struct radeon_ring *ring,
+			     struct radeon_semaphore *semaphore,
+			     bool emit_wait)
+{
+	uint64_t addr = semaphore->gpu_addr;
+
+	radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0));
+	radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
+
+	radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));
+	radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
+
+	radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
+	radeon_ring_write(ring, emit_wait ? 1 : 0);
+
+	return true;
+}
+
+/**
  * uvd_v2_2_resume - memory controller programming
  *
  * @rdev: radeon_device pointer
-- 
1.9.1

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  [PATCH 3.13.y-ckt 050/122] xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq() Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 035/122] bridge/mdb: remove wrong use of NLM_F_MULTI Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 038/122] writeback: use |1 instead of +1 to protect against div by zero Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 016/122] ozwpan: Use proper check to prevent heap overflow Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 046/122] RDMA/CMA: Canonize IPv4 on IPV6 sockets properly Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 045/122] drm/radeon: disable semaphores for UVD V1 (v2) Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 027/122] cdc-acm: prevent infinite loop when parsing CDC headers. Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 028/122] serial: xilinx: Use platform_get_irq to get irq description structure Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 048/122] drm/i915: Add missing MacBook Pro models with dual channel LVDS Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 049/122] xen/console: Update console event channel on resume Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 033/122] rbd: end I/O the entire obj_request on error Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 032/122] ALSA: emu10k1: Emu10k2 32 bit DMA mode Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 015/122] ozwpan: divide-by-zero leading to panic Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 037/122] x86/efi: Store upper bits of command line buffer address in ext_cmd_line_ptr Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 014/122] ozwpan: Use unsigned ints to prevent heap overflow Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 047/122] drm/i915: Assume dual channel LVDS if pixel clock necessitates it Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 022/122] drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5 Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:00 +0200
  [PATCH 3.13.y-ckt 007/122] qla2xxx: remove redundant declaration in 'qla_gbl.h' Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 002/122] vhost/scsi: potential memory corruption Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 008/122] staging: wlags49_h2: fix extern inline functions Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 012/122] udf: Remove repeated loads blocksize Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 021/122] ALSA: emux: Fix mutex deadlock at unloading Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 006/122] staging: rtl8712, rtl8712: avoid lots of build warnings Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 010/122] kconfig: Fix warning "‘jump’ may be used uninitialized" Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 001/122] Btrfs: make xattr replace operations atomic Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 005/122] staging, rtl8192e, LLVMLinux: Remove unused inline prototype Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 013/122] udf: Check length of extended attributes and allocation descriptors Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 009/122] ARM: 8307/1: psci: move psci firmware calls out of line Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200
  [PATCH 3.13.y-ckt 004/122] kernel: use the gnu89 standard explicitly Kamal Mostafa <kamal@canonical.com> - 2015-06-18 01:10 +0200

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