On Fri, Jun 25, 2021 at 9:48 AM Maarten Lankhorst maarten.lankhorst@linux.intel.com wrote:
Op 24-06-2021 om 14:04 schreef Daniel Vetter:
On Thu, Jun 24, 2021 at 1:29 PM Thomas Hellström thomas.hellstrom@linux.intel.com wrote:
Reinstate the mmap ioctl for all current integrated platforms. The intention was really to have it disabled for discrete graphics where we enforce a single mmap mode.
Fixes: 35cbd91eb541 ("drm/i915: Disable mmap ioctl for gen12+") Signed-off-by: Thomas Hellström thomas.hellstrom@linux.intel.com Reviewed-by: Matthew Auld matthew.auld@intel.com
Acked-by: Daniel Vetter daniel.vetter@ffwll.ch
v2:
- Added a R-B.
- Fixed up the code comment a bit.
drivers/gpu/drm/i915/gem/i915_gem_mman.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index 2fd155742bd2..4f50a508c7a0 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -62,10 +62,11 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data, struct drm_i915_gem_object *obj; unsigned long addr;
/* mmap ioctl is disallowed for all platforms after TGL-LP. This also* covers all platforms with local memory.
/** mmap ioctl is disallowed for all discrete platforms,* and for all platforms with GRAPHICS_VER > 12. */
if (GRAPHICS_VER(i915) >= 12 && !IS_TIGERLAKE(i915))
if (IS_DGFX(i915) || GRAPHICS_VER(i915) > 12) return -EOPNOTSUPP; if (args->flags & ~(I915_MMAP_WC))-- 2.31.1
Would keeping this change unapplied break any currently shipping platforms? If not, could we leave it as-is?
It breaks media on rkl/adl afaik. Which should be part of the commit message. -Daniel