diff options
| author | Alan Hourihane <alanh@tungstengraphics.com> | 2006-08-12 10:29:24 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2006-09-21 23:32:32 +0400 |
| commit | c29b669caae4ed1630ef479e54bdde126a0378ec (patch) | |
| tree | 6a1b68ea33fd6bcfcf921494df35bc532aaac7ad /drivers/char/drm/i915_dma.c | |
| parent | d000b486ea1633380e6224c03e94227db46567ad (diff) | |
| download | linux-c29b669caae4ed1630ef479e54bdde126a0378ec.tar.xz | |
drm: Add support for Intel i965G chipsets.
This is a patch prepared by Guangdeng Liao based off of Tungsten Graphics's
final code drop.
From: Alan Hourihane <alanh@tungstengraphics.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/char/drm/i915_dma.c')
| -rw-r--r-- | drivers/char/drm/i915_dma.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c index a94233bdbc0e..99e9d07409e4 100644 --- a/drivers/char/drm/i915_dma.c +++ b/drivers/char/drm/i915_dma.c @@ -31,6 +31,11 @@ #include "i915_drm.h" #include "i915_drv.h" +#define IS_I965G(dev) (dev->pdev->device == 0x2972 || \ + dev->pdev->device == 0x2982 || \ + dev->pdev->device == 0x2992 || \ + dev->pdev->device == 0x29A2) + /* Really want an OS-independent resettable timer. Would like to have * this loop run for (eg) 3 sec, but have the timer reset every time * the head pointer changes, so that EBUSY only happens if the ring @@ -347,7 +352,7 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8) return DRM_ERR(EINVAL); - BEGIN_LP_RING(((dwords+1)&~1)); + BEGIN_LP_RING((dwords+1)&~1); for (i = 0; i < dwords;) { int cmd, sz; @@ -395,24 +400,40 @@ static int i915_emit_box(drm_device_t * dev, return DRM_ERR(EINVAL); } - BEGIN_LP_RING(6); - OUT_RING(GFX_OP_DRAWRECT_INFO); - OUT_RING(DR1); - OUT_RING((box.x1 & 0xffff) | (box.y1 << 16)); - OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16)); - OUT_RING(DR4); - OUT_RING(0); - ADVANCE_LP_RING(); + if (IS_I965G(dev)) { + BEGIN_LP_RING(4); + OUT_RING(GFX_OP_DRAWRECT_INFO_I965); + OUT_RING((box.x1 & 0xffff) | (box.y1 << 16)); + OUT_RING(((box.x2 - 1) & 0xffff) ((box.y2 - 1) << 16)); + OUT_RING(DR4); + ADVANCE_LP_RING(); + } else { + BEGIN_LP_RING(6); + OUT_RING(GFX_OP_DRAWRECT_INFO); + OUT_RING(DR1); + OUT_RING((box.x1 & 0xffff) | (box.y1 << 16)); + OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16)); + OUT_RING(DR4); + OUT_RING(0); + ADVANCE_LP_RING(); + } return 0; } +/* XXX: Emitting the counter should really be moved to part of the IRQ + * emit. For now, do it in both places: + */ + static void i915_emit_breadcrumb(drm_device_t *dev) { drm_i915_private_t *dev_priv = dev->dev_private; RING_LOCALS; - dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; + dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter; + + if (dev_priv->counter > 0x7FFFFFFFUL) + dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1; BEGIN_LP_RING(4); OUT_RING(CMD_STORE_DWORD_IDX); |