From 0e16e4cfde70e1cf00f9fe3a8f601d10e73e0ec6 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 1 Aug 2014 20:05:29 +0200 Subject: [PATCH] drm/radeon: use packet2 for nop on hawaii with old firmware MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Older firmware didn't support the new nop packet. v2 (Andreas Boll): - Drop usage of packet3 for new firmware Signed-off-by: Alex Deucher Reviewed-by: Christian König (v1) Signed-off-by: Andreas Boll Cc: stable@vger.kernel.org --- 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 afdfe04a9290..2cb507ab0b7c 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -8259,6 +8259,7 @@ int cik_irq_process(struct radeon_device *rdev) static int cik_startup(struct radeon_device *rdev) { struct radeon_ring *ring; + u32 nop; int r; /* enable pcie gen2/3 link */ @@ -8392,9 +8393,15 @@ 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; @@ -8402,7 +8409,7 @@ 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 */ @@ -8413,7 +8420,7 @@ 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 */ -- GitLab