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drm/radeon: remove generic rptr/wptr functions (v2)

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Fill in asic family specific versions rather than
using the generic version.  This lets us handle asic
specific differences more easily.  In this case, we
disable sw swapping of the rtpr writeback value on
r6xx+ since the hw does it for us.  Fixes bogus
rptr readback on BE systems.

v2: remove missed cpu_to_le32(), add comments

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-12-09 19:44:30 -05:00
parent e308b1d375
commit ea31bf697d
14 changed files with 391 additions and 133 deletions
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32
drivers/gpu/drm/radeon/r600.c
View file

@ -2382,6 +2382,36 @@ out:
return err;
}
u32 r600_gfx_get_rptr(struct radeon_device *rdev,
struct radeon_ring *ring)
{
u32 rptr;
if (rdev->wb.enabled)
rptr = rdev->wb.wb[ring->rptr_offs/4];
else
rptr = RREG32(R600_CP_RB_RPTR);
return rptr;
}
u32 r600_gfx_get_wptr(struct radeon_device *rdev,
struct radeon_ring *ring)
{
u32 wptr;
wptr = RREG32(R600_CP_RB_WPTR);
return wptr;
}
void r600_gfx_set_wptr(struct radeon_device *rdev,
struct radeon_ring *ring)
{
WREG32(R600_CP_RB_WPTR, ring->wptr);
(void)RREG32(R600_CP_RB_WPTR);
}
static int r600_cp_load_microcode(struct radeon_device *rdev)
{
const __be32 *fw_data;
@ -2818,14 +2848,12 @@ static int r600_startup(struct radeon_device *rdev)
ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
R600_CP_RB_RPTR, R600_CP_RB_WPTR,
RADEON_CP_PACKET2);
if (r)
return r;
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
DMA_RB_RPTR, DMA_RB_WPTR,
DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
if (r)
return r;