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authorDave Airlie <airlied@redhat.com>2008-08-14 14:43:51 +1000
committerDave Airlie <airlied@redhat.com>2008-08-14 14:43:51 +1000
commit30ff279e42b3b0608e8ff6620d2958c174449798 (patch)
treefb9e61e8ed1da64534c28a4d4579472217de446d /linux-core
parenteb8f9b9da4d34b9bfa16dc3847e81976a12d2d0c (diff)
radeon: add support for memory map init
Diffstat (limited to 'linux-core')
-rw-r--r--linux-core/radeon_gem.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/linux-core/radeon_gem.c b/linux-core/radeon_gem.c
index df4ed4ce..bf8fb2e9 100644
--- a/linux-core/radeon_gem.c
+++ b/linux-core/radeon_gem.c
@@ -615,6 +615,90 @@ int radeon_alloc_gart_objects(struct drm_device *dev)
}
+static void radeon_init_memory_map(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ u32 mem_size, aper_size;
+
+ dev_priv->mc_fb_location = radeon_read_fb_location(dev_priv);
+ radeon_read_agp_location(dev_priv, &dev_priv->mc_agp_loc_lo, &dev_priv->mc_agp_loc_hi);
+
+ if (dev_priv->chip_family >= CHIP_R600) {
+ mem_size = RADEON_READ(R600_CONFIG_MEMSIZE);
+ aper_size = RADEON_READ(R600_CONFIG_APER_SIZE);
+ } else {
+ mem_size = RADEON_READ(RADEON_CONFIG_MEMSIZE);
+ aper_size = RADEON_READ(RADEON_CONFIG_APER_SIZE);
+ }
+
+ /* M6s report illegal memory size */
+ if (mem_size == 0)
+ mem_size = 8 * 1024 * 1024;
+
+ /* for RN50/M6/M7 - Novell bug 204882 */
+ if (aper_size > mem_size)
+ mem_size = aper_size;
+
+ if ((dev_priv->chip_family != CHIP_RS600) &&
+ (dev_priv->chip_family != CHIP_RS690) &&
+ (dev_priv->chip_family != CHIP_RS740)) {
+ if (dev_priv->flags & RADEON_IS_IGP)
+ dev_priv->mc_fb_location = RADEON_READ(RADEON_NB_TOM);
+ else {
+ uint32_t aper0_base;
+
+ if (dev_priv->chip_family >= CHIP_R600)
+ aper0_base = RADEON_READ(R600_CONFIG_F0_BASE);
+ else
+ aper0_base = RADEON_READ(RADEON_CONFIG_APER_0_BASE);
+
+
+ /* Some chips have an "issue" with the memory controller, the
+ * location must be aligned to the size. We just align it down,
+ * too bad if we walk over the top of system memory, we don't
+ * use DMA without a remapped anyway.
+ * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
+ */
+ if (dev_priv->chip_family == CHIP_RV280 ||
+ dev_priv->chip_family == CHIP_R300 ||
+ dev_priv->chip_family == CHIP_R350 ||
+ dev_priv->chip_family == CHIP_RV350 ||
+ dev_priv->chip_family == CHIP_RV380 ||
+ dev_priv->chip_family == CHIP_R420 ||
+ dev_priv->chip_family == CHIP_RV410)
+ aper0_base &= ~(mem_size - 1);
+
+ if (dev_priv->chip_family >= CHIP_R600) {
+ dev_priv->mc_fb_location = (aper0_base >> 24) |
+ (((aper0_base + mem_size - 1) & 0xff000000U) >> 8);
+ } else {
+ dev_priv->mc_fb_location = (aper0_base >> 16) |
+ ((aper0_base + mem_size - 1) & 0xffff0000U);
+ }
+ }
+ }
+
+ if (dev_priv->chip_family >= CHIP_R600)
+ dev_priv->fb_location = (dev_priv->mc_fb_location & 0xffff) << 24;
+ else
+ dev_priv->fb_location = (dev_priv->mc_fb_location & 0xffff) << 16;
+
+ if (radeon_is_avivo(dev_priv)) {
+ if (dev_priv->chip_family >= CHIP_R600)
+ RADEON_WRITE(R600_HDP_NONSURFACE_BASE, (dev_priv->mc_fb_location << 16) & 0xff0000);
+ else
+ RADEON_WRITE(AVIVO_HDP_FB_LOCATION, dev_priv->mc_fb_location);
+ }
+
+ radeon_write_fb_location(dev_priv, dev_priv->mc_fb_location);
+
+ dev_priv->fb_location = (radeon_read_fb_location(dev_priv) & 0xffff) << 16;
+ dev_priv->fb_size =
+ ((radeon_read_fb_location(dev_priv) & 0xffff0000u) + 0x10000)
+ - dev_priv->fb_location;
+
+}
+
/* init memory manager - start with all of VRAM and a 32MB GART aperture for now */
int radeon_gem_mm_init(struct drm_device *dev)
{
@@ -624,6 +708,8 @@ int radeon_gem_mm_init(struct drm_device *dev)
/* size the mappable VRAM memory for now */
radeon_vram_setup(dev);
+ radeon_init_memory_map(dev);
+
drm_bo_init_mm(dev, DRM_BO_MEM_VRAM, 0, /*dev_priv->mm.vram_offset >> PAGE_SHIFT,*/
(dev_priv->mm.vram_visible) >> PAGE_SHIFT,
0);