diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cp.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c index 78a058fc039f..8338353e505b 100644 --- a/drivers/gpu/drm/radeon/radeon_cp.c +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -191,6 +191,25 @@ static void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base) } } +static void radeon_enable_bm(struct drm_radeon_private *dev_priv) +{ + u32 tmp; + /* Turn on bus mastering */ + if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) { + /* rs600/rs690/rs740 */ + tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS; + RADEON_WRITE(RADEON_BUS_CNTL, tmp); + } else if (((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV350) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) { + /* r1xx, r2xx, r300, r(v)350, r420/r481, rs400/rs480 */ + tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS; + RADEON_WRITE(RADEON_BUS_CNTL, tmp); + } /* PCIE cards appears to not need this */ +} + static int RADEON_READ_PLL(struct drm_device * dev, int addr) { drm_radeon_private_t *dev_priv = dev->dev_private; @@ -608,7 +627,6 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev, { struct drm_radeon_master_private *master_priv; u32 ring_start, cur_read_ptr; - u32 tmp; /* Initialize the memory controller. With new memory map, the fb location * is not changed, it should have been properly initialized already. Part @@ -690,20 +708,7 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev, RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7); - /* Turn on bus mastering */ - if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) { - /* rs600/rs690/rs740 */ - tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS; - RADEON_WRITE(RADEON_BUS_CNTL, tmp); - } else if (((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV350) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) { - /* r1xx, r2xx, r300, r(v)350, r420/r481, rs400/rs480 */ - tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS; - RADEON_WRITE(RADEON_BUS_CNTL, tmp); - } /* PCIE cards appears to not need this */ + radeon_enable_bm(dev_priv); radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(0), 0); RADEON_WRITE(RADEON_LAST_FRAME_REG, 0); |