diff mbox

[1/4] drm/radeon: use packet2 for nop on hawaii with old firmware

Message ID 1406916332-4195-1-git-send-email-andreas.boll.dev@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Andreas Boll Aug. 1, 2014, 6:05 p.m. UTC
From: Alex Deucher <alexander.deucher@amd.com>

Older firmware didn't support the new nop packet.

v2 (Andreas Boll):
 - Drop usage of packet3 for new firmware

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/cik.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

Comments

Alex Deucher Aug. 4, 2014, 6:42 p.m. UTC | #1
On Fri, Aug 1, 2014 at 2:05 PM, Andreas Boll <andreas.boll.dev@gmail.com> wrote:
> From: Alex Deucher <alexander.deucher@amd.com>
>
> Older firmware didn't support the new nop packet.
>
> v2 (Andreas Boll):
>  - Drop usage of packet3 for new firmware
>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
> Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
> Cc: stable@vger.kernel.org

Added the series to my 3.17 tree.  thanks!

Alex

> ---
>  drivers/gpu/drm/radeon/cik.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
> index c0ea661..e5985d5 100644
> --- a/drivers/gpu/drm/radeon/cik.c
> +++ b/drivers/gpu/drm/radeon/cik.c
> @@ -7900,6 +7900,7 @@ restart_ih:
>  static int cik_startup(struct radeon_device *rdev)
>  {
>         struct radeon_ring *ring;
> +       u32 nop;
>         int r;
>
>         /* enable pcie gen2/3 link */
> @@ -8033,9 +8034,15 @@ static int cik_startup(struct radeon_device *rdev)
>         }
>         cik_irq_set(rdev);
>
> +       if (rdev->family == CHIP_HAWAII) {
> +               nop = RADEON_CP_PACKET2;
> +       } else {
> +               nop = PACKET3(PACKET3_NOP, 0x3FFF);
> +       }
> +
>         ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
>         r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
> -                            PACKET3(PACKET3_NOP, 0x3FFF));
> +                            nop);
>         if (r)
>                 return r;
>
> @@ -8043,7 +8050,7 @@ static int cik_startup(struct radeon_device *rdev)
>         /* type-2 packets are deprecated on MEC, use type-3 instead */
>         ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
>         r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP1_RPTR_OFFSET,
> -                            PACKET3(PACKET3_NOP, 0x3FFF));
> +                            nop);
>         if (r)
>                 return r;
>         ring->me = 1; /* first MEC */
> @@ -8054,7 +8061,7 @@ static int cik_startup(struct radeon_device *rdev)
>         /* type-2 packets are deprecated on MEC, use type-3 instead */
>         ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
>         r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP2_RPTR_OFFSET,
> -                            PACKET3(PACKET3_NOP, 0x3FFF));
> +                            nop);
>         if (r)
>                 return r;
>         /* dGPU only have 1 MEC */
> --
> 2.0.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
diff mbox

Patch

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index c0ea661..e5985d5 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -7900,6 +7900,7 @@  restart_ih:
 static int cik_startup(struct radeon_device *rdev)
 {
 	struct radeon_ring *ring;
+	u32 nop;
 	int r;
 
 	/* enable pcie gen2/3 link */
@@ -8033,9 +8034,15 @@  static int cik_startup(struct radeon_device *rdev)
 	}
 	cik_irq_set(rdev);
 
+	if (rdev->family == CHIP_HAWAII) {
+		nop = RADEON_CP_PACKET2;
+	} else {
+		nop = PACKET3(PACKET3_NOP, 0x3FFF);
+	}
+
 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
-			     PACKET3(PACKET3_NOP, 0x3FFF));
+			     nop);
 	if (r)
 		return r;
 
@@ -8043,7 +8050,7 @@  static int cik_startup(struct radeon_device *rdev)
 	/* type-2 packets are deprecated on MEC, use type-3 instead */
 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP1_RPTR_OFFSET,
-			     PACKET3(PACKET3_NOP, 0x3FFF));
+			     nop);
 	if (r)
 		return r;
 	ring->me = 1; /* first MEC */
@@ -8054,7 +8061,7 @@  static int cik_startup(struct radeon_device *rdev)
 	/* type-2 packets are deprecated on MEC, use type-3 instead */
 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP2_RPTR_OFFSET,
-			     PACKET3(PACKET3_NOP, 0x3FFF));
+			     nop);
 	if (r)
 		return r;
 	/* dGPU only have 1 MEC */