drm/i915: add io_size plumbing

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With small LMEM-BAR we need to be able to differentiate between the
total size of LMEM, and how much of it is CPU mappable. The end goal is
to be able to utilize the entire range, even if part of is it not CPU
accessible.

v2: also update intelfb_create

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225145502.331818-1-matthew.auld@intel.com

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This commit is contained in:

Matthew Auld 2022-02-25 14:54:56 +00:00

parent d2cc01e179

commit 235582ca96

11 changed files with 29 additions and 17 deletions

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2

drivers/gpu/drm/i915/display/intel_fbdev.c

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drivers/gpu/drm/i915/gem/i915_gem_shmem.c

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drivers/gpu/drm/i915/gem/i915_gem_stolen.c

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drivers/gpu/drm/i915/gem/i915_gem_ttm.c

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drivers/gpu/drm/i915/gem/selftests/huge_pages.c

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drivers/gpu/drm/i915/gt/intel_region_lmem.c

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drivers/gpu/drm/i915/intel_memory_region.c

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drivers/gpu/drm/i915/intel_memory_region.h

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drivers/gpu/drm/i915/selftests/intel_memory_region.c

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drivers/gpu/drm/i915/selftests/mock_region.c

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drivers/gpu/drm/i915/selftests/mock_region.h

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