r500: attempt to make AGP work by programming agp base in the MC correctly

diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index 2e68030..819a61a 100644 (file)
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -112,6 +112,27 @@ static void radeon_write_agp_location(drm_radeon_private_t *dev_priv, u32 agp_lo
                RADEON_WRITE(RADEON_MC_AGP_LOCATION, agp_loc);
 }
 
+static void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
+{
+       u32 agp_base_hi = upper_32_bits(agp_base);
+       u32 agp_base_lo = agp_base & 0xffffffff;
+
+       if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) {
+               R500_WRITE_MCIND(RV515_MC_AGP_BASE, agp_base_lo);
+               R500_WRITE_MCIND(RV515_MC_AGP_BASE_2, agp_base_hi);
+       } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) {
+               RS690_WRITE_MCIND(RS690_MC_AGP_BASE, agp_base_lo);
+               RS690_WRITE_MCIND(RS690_MC_AGP_BASE_2, agp_base_hi);
+       } else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515) {
+               R500_WRITE_MCIND(R520_MC_AGP_BASE, agp_base_lo);
+               R500_WRITE_MCIND(R520_MC_AGP_BASE_2, agp_base_hi);
+       } else {
+               RADEON_WRITE(RADEON_MC_AGP_LOCATION, agp_base_lo);
+               if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
+                       RADEON_WRITE(RADEON_AGP_BASE_2, agp_base_hi);
+       }
+}
+
 static int RADEON_READ_PLL(struct drm_device * dev, int addr)
 {
        drm_radeon_private_t *dev_priv = dev->dev_private;
@@ -542,9 +563,8 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev,
 
 #if __OS_HAS_AGP
        if (dev_priv->flags & RADEON_IS_AGP) {
-               RADEON_WRITE(RADEON_AGP_BASE, (unsigned int)dev->agp->base);
-               if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
-                       RADEON_WRITE(RADEON_AGP_BASE_2, 0);
+               radeon_write_agp_base(dev_priv, dev->agp->base);
+
                radeon_write_agp_location(dev_priv,
                             (((dev_priv->gart_vm_start - 1 +
                                dev_priv->gart_size) & 0xffff0000) |

diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index 1b32b2f..e263c61 100644 (file)
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -524,9 +524,13 @@ extern int r300_do_cp_cmdbuf(struct drm_device *dev,
 
 #define RV515_MC_FB_LOCATION 0x01
 #define RV515_MC_AGP_LOCATION 0x02
+#define RV515_MC_AGP_BASE     0x03
+#define RV515_MC_AGP_BASE_2   0x04
 
 #define R520_MC_FB_LOCATION 0x04
 #define R520_MC_AGP_LOCATION 0x05
+#define R520_MC_AGP_BASE     0x06
+#define R520_MC_AGP_BASE_2   0x07
 
 #define RADEON_MPP_TB_CONFIG           0x01c0
 #define RADEON_MEM_CNTL                        0x0140