[PATCH] intelfb: Do not ioremap entire graphics aperture

[linux-2.6-omap-h63xx.git] / drivers / video / intelfb / intelfbdrv.c

diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index 298bc9cd99e7f59772a8d551307ec3b9d77032d4..a112a1786855feb07b581fb184517e5622ff6762 100644 (file)
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -583,23 +583,6 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
                return -ENODEV;
        }
 
-       /* Map the fb and MMIO regions */
-       dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache
-               (dinfo->aperture.physical, dinfo->aperture.size);
-       if (!dinfo->aperture.virtual) {
-               ERR_MSG("Cannot remap FB region.\n");
-               cleanup(dinfo);
-               return -ENODEV;
-       }
-       dinfo->mmio_base =
-               (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys,
-                                              INTEL_REG_SIZE);
-       if (!dinfo->mmio_base) {
-               ERR_MSG("Cannot remap MMIO region.\n");
-               cleanup(dinfo);
-               return -ENODEV;
-       }
-
        /* Get the chipset info. */
        dinfo->pci_chipset = pdev->device;
 
@@ -630,9 +613,15 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
                dinfo->accel = 0;
        }
 
+       if (MB(voffset) < stolen_size)
+               offset = (stolen_size >> 12);
+       else
+               offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE;
+
        /* Framebuffer parameters - Use all the stolen memory if >= vram */
-       if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) {
+       if (ROUND_UP_TO_PAGE(stolen_size) >= ((offset << 12) +  MB(vram))) {
                dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size);
+               dinfo->fb.offset = 0;
                dinfo->fbmem_gart = 0;
        } else {
                dinfo->fb.size =  MB(vram);
@@ -663,11 +652,6 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
                return -ENODEV;
        }
 
-       if (MB(voffset) < stolen_size)
-               offset = (stolen_size >> 12);
-       else
-               offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE;
-
        /* set the mem offsets - set them after the already used pages */
        if (dinfo->accel) {
                dinfo->ring.offset = offset + gtt_info.current_memory;
@@ -682,6 +666,26 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
                        + (dinfo->cursor.size >> 12);
        }
 
+       /* Map the fb and MMIO regions */
+       /* ioremap only up to the end of used aperture */
+       dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache
+               (dinfo->aperture.physical, (dinfo->fb.offset << 12)
+                + dinfo->fb.size);
+       if (!dinfo->aperture.virtual) {
+               ERR_MSG("Cannot remap FB region.\n");
+               cleanup(dinfo);
+               return -ENODEV;
+       }
+
+       dinfo->mmio_base =
+               (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys,
+                                              INTEL_REG_SIZE);
+       if (!dinfo->mmio_base) {
+               ERR_MSG("Cannot remap MMIO region.\n");
+               cleanup(dinfo);
+               return -ENODEV;
+       }
+
        /* Allocate memories (which aren't stolen) */
        if (dinfo->accel) {
                if (!(dinfo->gtt_ring_mem =