Merge tag 'drm-misc-next-2022-09-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.1-rc1:

[airlied - fix sun4i_tv build]

UAPI Changes:
- Hide unregistered connectors from GETCONNECTOR ioctl.
- drm/virtio no longer advertises LINEAR modifier, as it doesn't work.
-

Cross-subsystem Changes:
- Fix GPF in udmabuf failure path.

Core Changes:
- Rework TTM placement to use intersect/compatible functions.
- Drop legacy DP-MST support.
- More DP-MST related fixes, and move all state into atomic.
- Make DRM_MIPI_DBI select DRM_KMS_HELPER.
- Add audio_infoframe packing for DP.
- Add logging when some atomic check functions fail.
- Assorted documentation updates and fixes.

Driver Changes:
- Assorted cleanups and fixes in msm, lcdif, nouveau, virtio,
  panel/ilitek, bridge/icn6211, tve200, gma500, bridge/*, panfrost, via,
  bochs, qxl, sun4i.
- Add add AUO B133UAN02.1, IVO M133NW4J-R3, Innolux N120ACA-EA1 eDP panels.
- Improve DP-MST modeset state handling in amdgpu, nouveau, i915.
- Drop DP-MST from radeon driver, it was broken and only user of legacy
  DP-MST.
- Handle unplugging better in vc4.
- Simplify drm cmdparser tests.
- Add DP support to ti-sn65dsi86.
- Add MT8195 DP support to mediatek.
- Support RGB565, XRGB64, and ARGB64 formats in vkms.
- Convert sun4i tv support to atomic.
- Refactor vc4/vec TV Modesetting, and fix timings.
- Use atomic helpers instead of simple display helpers in ssd130x.

Maintainer changes:
- Add Douglas Anderson as reviewer for panel-edp.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a489485b-3ebc-c734-0f80-aed963d89efe@linux.intel.com

1 files changed, 27 insertions, 17 deletions

diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c
index b285a8001b1d..e246d914e7f6 100644
--- a/drivers/gpu/drm/panfrost/panfrost_mmu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c
@@ -248,11 +248,15 @@ void panfrost_mmu_reset(struct panfrost_device *pfdev)
 	mmu_write(pfdev, MMU_INT_MASK, ~0);
 }
 
-static size_t get_pgsize(u64 addr, size_t size)
+static size_t get_pgsize(u64 addr, size_t size, size_t *count)
 {
-	if (addr & (SZ_2M - 1) || size < SZ_2M)
-		return SZ_4K;
+	size_t blk_offset = -addr % SZ_2M;
 
+	if (blk_offset || size < SZ_2M) {
+		*count = min_not_zero(blk_offset, size) / SZ_4K;
+		return SZ_4K;
+	}
+	*count = size / SZ_2M;
 	return SZ_2M;
 }
 
@@ -287,12 +291,16 @@ static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu,
 		dev_dbg(pfdev->dev, "map: as=%d, iova=%llx, paddr=%lx, len=%zx", mmu->as, iova, paddr, len);
 
 		while (len) {
-			size_t pgsize = get_pgsize(iova | paddr, len);
-
-			ops->map(ops, iova, paddr, pgsize, prot, GFP_KERNEL);
-			iova += pgsize;
-			paddr += pgsize;
-			len -= pgsize;
+			size_t pgcount, mapped = 0;
+			size_t pgsize = get_pgsize(iova | paddr, len, &pgcount);
+
+			ops->map_pages(ops, iova, paddr, pgsize, pgcount, prot,
+				       GFP_KERNEL, &mapped);
+			/* Don't get stuck if things have gone wrong */
+			mapped = max(mapped, pgsize);
+			iova += mapped;
+			paddr += mapped;
+			len -= mapped;
 		}
 	}
 
@@ -344,15 +352,17 @@ void panfrost_mmu_unmap(struct panfrost_gem_mapping *mapping)
 		mapping->mmu->as, iova, len);
 
 	while (unmapped_len < len) {
-		size_t unmapped_page;
-		size_t pgsize = get_pgsize(iova, len - unmapped_len);
-
-		if (ops->iova_to_phys(ops, iova)) {
-			unmapped_page = ops->unmap(ops, iova, pgsize, NULL);
-			WARN_ON(unmapped_page != pgsize);
+		size_t unmapped_page, pgcount;
+		size_t pgsize = get_pgsize(iova, len - unmapped_len, &pgcount);
+
+		if (bo->is_heap)
+			pgcount = 1;
+		if (!bo->is_heap || ops->iova_to_phys(ops, iova)) {
+			unmapped_page = ops->unmap_pages(ops, iova, pgsize, pgcount, NULL);
+			WARN_ON(unmapped_page != pgsize * pgcount);
 		}
-		iova += pgsize;
-		unmapped_len += pgsize;
+		iova += pgsize * pgcount;
+		unmapped_len += pgsize * pgcount;
 	}
 
 	panfrost_mmu_flush_range(pfdev, mapping->mmu,