r600c: fix mipmap stride on evergreen

taken from Dave's r600g fix

diff --git a/src/mesa/drivers/dri/radeon/radeon_common_context.c b/src/mesa/drivers/dri/radeon/radeon_common_context.c
index b0340ce..85e4988 100644 (file)
--- a/src/mesa/drivers/dri/radeon/radeon_common_context.c
+++ b/src/mesa/drivers/dri/radeon/radeon_common_context.c
@@ -245,9 +245,16 @@ GLboolean radeonInitContext(radeonContextPtr radeon,
                DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 
        if (IS_R600_CLASS(radeon->radeonScreen)) {
-               radeon->texture_row_align = 256;
-               radeon->texture_rect_row_align = 256;
-               radeon->texture_compressed_row_align = 256;
+               int chip_family = radeon->radeonScreen->chip_family;
+               if (chip_family >= CHIP_FAMILY_CEDAR) {
+                       radeon->texture_row_align = 512;
+                       radeon->texture_rect_row_align = 512;
+                       radeon->texture_compressed_row_align = 512;
+               } else {
+                       radeon->texture_row_align = 256;
+                       radeon->texture_rect_row_align = 256;
+                       radeon->texture_compressed_row_align = 256;
+               }
        } else if (IS_R200_CLASS(radeon->radeonScreen) ||
                   IS_R100_CLASS(radeon->radeonScreen)) {
                radeon->texture_row_align = 32;