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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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41c2e75e60
This changes drm_local_map to use a resource_size for its "offset" member instead of an unsigned long, thus allowing 32-bit machines with a >32-bit physical address space to be able to store there their register or framebuffer addresses when those are above 4G, such as when using a PCI video card on a recent AMCC 440 SoC. This patch isn't as "trivial" as it sounds: A few functions needed to have some unsigned long/int changed to resource_size_t and a few printk's had to be adjusted. But also, because userspace isn't capable of passing such offsets, I had to modify drm_find_matching_map() to ignore the offset passed in for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS. If we ever support multiple _DRM_FRAMEBUFFER or _DRM_REGISTERS maps for a given device, we might have to change that trick, but I don't think that happens on any current driver. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@linux.ie> |
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| .. | ||
| Makefile | ||
| mga_dma.c | ||
| mga_drv.c | ||
| mga_drv.h | ||
| mga_ioc32.c | ||
| mga_irq.c | ||
| mga_state.c | ||
| mga_ucode.h | ||
| mga_warp.c | ||