drm/radeon: add initial rs690 support to drm.
This adds support for configuring the RS690 GART.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 5dc799a..833abc7 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -825,11 +825,19 @@
return ret;
}
+static u32 RS690_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
+{
+ RADEON_WRITE(RS690_MC_INDEX, (addr & RS690_MC_INDEX_MASK));
+ return RADEON_READ(RS690_MC_DATA);
+}
+
u32 radeon_read_fb_location(drm_radeon_private_t *dev_priv)
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
return RADEON_READ_MCIND(dev_priv, RV515_MC_FB_LOCATION);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
+ return RS690_READ_MCIND(dev_priv, RS690_MC_FB_LOCATION);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
return RADEON_READ_MCIND(dev_priv, R520_MC_FB_LOCATION);
else
@@ -840,6 +848,8 @@
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
RADEON_WRITE_MCIND(RV515_MC_FB_LOCATION, fb_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
+ RS690_WRITE_MCIND(RS690_MC_FB_LOCATION, fb_loc);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
RADEON_WRITE_MCIND(R520_MC_FB_LOCATION, fb_loc);
else
@@ -850,6 +860,8 @@
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
RADEON_WRITE_MCIND(RV515_MC_AGP_LOCATION, agp_loc);
+ else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
+ RS690_WRITE_MCIND(RS690_MC_AGP_LOCATION, agp_loc);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
RADEON_WRITE_MCIND(R520_MC_AGP_LOCATION, agp_loc);
else
@@ -1362,6 +1374,70 @@
}
}
+/* Enable or disable RS690 GART on the chip */
+static void radeon_set_rs690gart(drm_radeon_private_t *dev_priv, int on)
+{
+ u32 temp;
+
+ if (on) {
+ DRM_DEBUG("programming rs690 gart %08X %08lX %08X\n",
+ dev_priv->gart_vm_start,
+ (long)dev_priv->gart_info.bus_addr,
+ dev_priv->gart_size);
+
+ temp = RS690_READ_MCIND(dev_priv, RS690_MC_MISC_CNTL);
+ RS690_WRITE_MCIND(RS690_MC_MISC_CNTL, 0x5000);
+
+ RS690_WRITE_MCIND(RS690_MC_AGP_SIZE,
+ RS690_MC_GART_EN | RS690_MC_AGP_SIZE_32MB);
+
+ temp = RS690_READ_MCIND(dev_priv, RS690_MC_GART_FEATURE_ID);
+ RS690_WRITE_MCIND(RS690_MC_GART_FEATURE_ID, 0x42040800);
+
+ RS690_WRITE_MCIND(RS690_MC_GART_BASE,
+ dev_priv->gart_info.bus_addr);
+
+ temp = RS690_READ_MCIND(dev_priv, RS690_MC_AGP_MODE_CONTROL);
+ RS690_WRITE_MCIND(RS690_MC_AGP_MODE_CONTROL, 0x01400000);
+
+ RS690_WRITE_MCIND(RS690_MC_AGP_BASE,
+ (unsigned int)dev_priv->gart_vm_start);
+
+ dev_priv->gart_size = 32*1024*1024;
+ temp = (((dev_priv->gart_vm_start - 1 + dev_priv->gart_size) &
+ 0xffff0000) | (dev_priv->gart_vm_start >> 16));
+
+ RS690_WRITE_MCIND(RS690_MC_AGP_LOCATION, temp);
+
+ temp = RS690_READ_MCIND(dev_priv, RS690_MC_AGP_SIZE);
+ RS690_WRITE_MCIND(RS690_MC_AGP_SIZE,
+ RS690_MC_GART_EN | RS690_MC_AGP_SIZE_32MB);
+
+ do {
+ temp = RS690_READ_MCIND(dev_priv, RS690_MC_GART_CACHE_CNTL);
+ if ((temp & RS690_MC_GART_CLEAR_STATUS) ==
+ RS690_MC_GART_CLEAR_DONE)
+ break;
+ DRM_UDELAY(1);
+ } while (1);
+
+ RS690_WRITE_MCIND(RS690_MC_GART_CACHE_CNTL,
+ RS690_MC_GART_CC_CLEAR);
+ do {
+ temp = RS690_READ_MCIND(dev_priv, RS690_MC_GART_CACHE_CNTL);
+ if ((temp & RS690_MC_GART_CLEAR_STATUS) ==
+ RS690_MC_GART_CLEAR_DONE)
+ break;
+ DRM_UDELAY(1);
+ } while (1);
+
+ RS690_WRITE_MCIND(RS690_MC_GART_CACHE_CNTL,
+ RS690_MC_GART_CC_NO_CHANGE);
+ } else {
+ RS690_WRITE_MCIND(RS690_MC_AGP_SIZE, RS690_MC_GART_DIS);
+ }
+}
+
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);
@@ -1396,6 +1472,11 @@
{
u32 tmp;
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) {
+ radeon_set_rs690gart(dev_priv, on);
+ return;
+ }
+
if (dev_priv->flags & RADEON_IS_IGPGART) {
radeon_set_igpgart(dev_priv, on);
return;
