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Diffstat (limited to 'shared-core/radeon_cp.c')
-rw-r--r--shared-core/radeon_cp.c66
1 files changed, 62 insertions, 4 deletions
diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index e02796e7..bfc2d088 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -824,12 +824,21 @@ static int RADEON_READ_PLL(drm_device_t * dev, int addr)
return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
}
-static int RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
+static u32 RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
{
RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
return RADEON_READ(RADEON_PCIE_DATA);
}
+static u32 RADEON_READ_IGPGART(drm_radeon_private_t *dev_priv, int addr)
+{
+ u32 ret;
+ RADEON_WRITE(RADEON_IGPGART_INDEX, addr & 0x7f);
+ ret = RADEON_READ(RADEON_IGPGART_DATA);
+ RADEON_WRITE(RADEON_IGPGART_INDEX, 0x7f);
+ return ret;
+}
+
#if RADEON_FIFO_DEBUG
static void radeon_status(drm_radeon_private_t * dev_priv)
{
@@ -1266,7 +1275,45 @@ static void radeon_test_writeback(drm_radeon_private_t * dev_priv)
}
}
-/* Enable or disable PCI-E GART on the chip */
+/* Enable or disable IGP GART on the chip */
+static void radeon_set_igpgart(drm_radeon_private_t * dev_priv, int on)
+{
+ u32 temp, tmp;
+
+ tmp = RADEON_READ(RADEON_AIC_CNTL);
+ DRM_DEBUG("setting igpgart AIC CNTL is %08X\n", tmp);
+ if (on) {
+ DRM_DEBUG("programming igpgart %08X %08lX %08X\n",
+ dev_priv->gart_vm_start,
+ (long)dev_priv->gart_info.bus_addr,
+ dev_priv->gart_size);
+
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_UNK_18, 0x1000);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_ENABLE, 0x1);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_CTRL, 0x42040800);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_BASE_ADDR,
+ dev_priv->gart_info.bus_addr);
+
+ temp = RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_UNK_39);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_UNK_39, temp);
+
+ RADEON_WRITE(RADEON_AGP_BASE, (unsigned int)dev_priv->gart_vm_start);
+ dev_priv->gart_size = 32*1024*1024;
+ RADEON_WRITE(RADEON_MC_AGP_LOCATION,
+ (((dev_priv->gart_vm_start - 1 +
+ dev_priv->gart_size) & 0xffff0000) |
+ (dev_priv->gart_vm_start >> 16)));
+
+ temp = RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_ENABLE);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_ENABLE, temp);
+
+ RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_FLUSH);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_FLUSH, 0x1);
+ RADEON_READ_IGPGART(dev_priv, RADEON_IGPGART_FLUSH);
+ RADEON_WRITE_IGPGART(RADEON_IGPGART_FLUSH, 0x0);
+ }
+}
+
static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
{
u32 tmp = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_TX_GART_CNTL);
@@ -1301,6 +1348,11 @@ static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
{
u32 tmp;
+ if (dev_priv->flags & RADEON_IS_IGPGART) {
+ radeon_set_igpgart(dev_priv, on);
+ return;
+ }
+
if (dev_priv->flags & RADEON_IS_PCIE) {
radeon_set_pciegart(dev_priv, on);
return;
@@ -1635,8 +1687,10 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
dev_priv->gart_info.addr =
dev_priv->gart_info.mapping.handle;
- dev_priv->gart_info.is_pcie =
- !!(dev_priv->flags & RADEON_IS_PCIE);
+ if (dev_priv->flags & RADEON_IS_PCIE)
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCIE;
+ else
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
dev_priv->gart_info.gart_table_location =
DRM_ATI_GART_FB;
@@ -1644,6 +1698,10 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
dev_priv->gart_info.addr,
dev_priv->pcigart_offset);
} else {
+ if (dev_priv->flags & RADEON_IS_IGPGART)
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_IGP;
+ else
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
dev_priv->gart_info.gart_table_location =
DRM_ATI_GART_MAIN;
dev_priv->gart_info.addr = NULL;