[PATCH v8 4/9] video: fbdev: gxt4500: use pci_ioremap_wc_bar() for framebuffer

From: "Luis R. Rodriguez" The driver doesn't use mtrr_add() or arch_phys_wc_add() but since we know the framebuffer is isolated already on an ioremap() we can take advantage of write combining for performance where possible. In this case there are a few motivations for this: a) Take advantage

[PATCH v8 4/9] video: fbdev: gxt4500: use pci_ioremap_wc_bar() for framebuffer

From: Luis R. Rodriguez mcg...@suse.com The driver doesn't use mtrr_add() or arch_phys_wc_add() but since we know the framebuffer is isolated already on an ioremap() we can take advantage of write combining for performance where possible. In this case there are a few motivations for this: a)