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>

diff --git a/drivers/char/drm/drm_pciids.h b/drivers/char/drm/drm_pciids.h
index 8c16cde..beeeb0c 100644 (file)
--- a/drivers/char/drm/drm_pciids.h
+++ b/drivers/char/drm/drm_pciids.h
@@ -287,5 +287,9 @@
        {0x8086, 0x2592, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
        {0x8086, 0x2772, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
        {0x8086, 0x27a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+       {0x8086, 0x2972, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+       {0x8086, 0x2982, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+       {0x8086, 0x2992, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+       {0x8086, 0x29a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
        {0, 0, 0}
 

diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
index a94233b..99e9d07 100644 (file)
--- 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);

diff --git a/drivers/char/drm/i915_drm.h b/drivers/char/drm/i915_drm.h
index 5aa3e0e..6af83e6 100644 (file)
--- a/drivers/char/drm/i915_drm.h
+++ b/drivers/char/drm/i915_drm.h
@@ -98,6 +98,12 @@ typedef struct _drm_i915_sarea {
        int rotated_size;
        int rotated_pitch;
        int virtualX, virtualY;
+
+       unsigned int front_tiled;
+       unsigned int back_tiled;
+       unsigned int depth_tiled;
+       unsigned int rotated_tiled;
+       unsigned int rotated2_tiled;
 } drm_i915_sarea_t;
 
 /* Flags for perf_boxes

diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h
index 2d56503..fdc2bf1 100644 (file)
--- a/drivers/char/drm/i915_drv.h
+++ b/drivers/char/drm/i915_drv.h
@@ -146,9 +146,9 @@ extern void i915_mem_release(drm_device_t * dev,
 #define BEGIN_LP_RING(n) do {                          \
        if (I915_VERBOSE)                               \
                DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n",  \
-                         n, __FUNCTION__);             \
-       if (dev_priv->ring.space < n*4)                 \
-               i915_wait_ring(dev, n*4, __FUNCTION__);         \
+                         (n), __FUNCTION__);           \
+       if (dev_priv->ring.space < (n)*4)                       \
+               i915_wait_ring(dev, (n)*4, __FUNCTION__);               \
        outcount = 0;                                   \
        outring = dev_priv->ring.tail;                  \
        ringmask = dev_priv->ring.tail_mask;            \
@@ -157,7 +157,7 @@ extern void i915_mem_release(drm_device_t * dev,
 
 #define OUT_RING(n) do {                                       \
        if (I915_VERBOSE) DRM_DEBUG("   OUT_RING %x\n", (int)(n));      \
-       *(volatile unsigned int *)(virt + outring) = n;         \
+       *(volatile unsigned int *)(virt + outring) = (n);       \
         outcount++;                                            \
        outring += 4;                                           \
        outring &= ringmask;                                    \
@@ -254,6 +254,8 @@ extern int i915_wait_ring(drm_device_t * dev, int n, const char *caller);
 #define GFX_OP_DESTBUFFER_VARS   ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
 #define GFX_OP_DRAWRECT_INFO     ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
 
+#define GFX_OP_DRAWRECT_INFO_I965 ((0x7900<<16)|0x2)
+
 #define MI_BATCH_BUFFER        ((0x30<<23)|1)
 #define MI_BATCH_BUFFER_START  (0x31<<23)
 #define MI_BATCH_BUFFER_END    (0xA<<23)

diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index cd96cfa..0d4a162 100644 (file)
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -71,21 +71,27 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 static int i915_emit_irq(drm_device_t * dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
-       u32 ret;
        RING_LOCALS;
 
        i915_kernel_lost_context(dev);
 
        DRM_DEBUG("%s\n", __FUNCTION__);
 
-       ret = dev_priv->counter;
+       dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter;
 
-       BEGIN_LP_RING(2);
+       if (dev_priv->counter > 0x7FFFFFFFUL)
+               dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1;
+
+       BEGIN_LP_RING(6);
+       OUT_RING(CMD_STORE_DWORD_IDX);
+       OUT_RING(20);
+       OUT_RING(dev_priv->counter);
+       OUT_RING(0);
        OUT_RING(0);
        OUT_RING(GFX_OP_USER_INTERRUPT);
        ADVANCE_LP_RING();
-
-       return ret;
+       
+       return dev_priv->counter;
 }
 
 static int i915_wait_irq(drm_device_t * dev, int irq_nr)