diff options
| author | Dave Airlie <airlied@redhat.com> | 2020-11-06 14:37:56 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-11-06 15:00:01 +1000 |
| commit | c0f98d2f8b076bf3e3183aa547395f919c943a14 (patch) | |
| tree | 943ca640139742367c9b22aaec0c9f7b67ab631e /drivers/iommu | |
| parent | e047c7be173caab95f3876ab30c03ebcf654c300 (diff) | |
| parent | 24e146cdf9f5a8fb464dd98ba8357d662d37d22f (diff) | |
Merge tag 'drm-misc-next-2020-11-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.11:
UAPI Changes:
Cross-subsystem Changes:
- arch/arm64: Describe G12b GPU as coherent
- iommu: Support coherency for Mali LPAE
Core Changes:
- atomic: Pass full state to CRTC atomic_{check, begin, flush}(); Use
atomic-state pointers
- drm: Remove SCATTER_LIST_MAX_SEGMENT; Cleanups
- doc: Document legacy_cursor_update better; cleanups
- edid: Don't warn n EDIDs of zero
- ttm: New backend allocation pool; Remove old page allocator; Rework
no_retry handling; Replace flags with booleans in struct ttm_operation_ctx
- vram-helper: Cleanups
- fbdev: Cleanups
- console: Store font size as unsigned value
Driver Changes:
- ast: Support new display mode
- amdgpu: Switch to new TTM allocator
- hisilicon: Cleanups
- nouveau: Switch to new TTM allocator; Fix include of swiotbl.h and
limits.h; Use state helper instead of CRTC state pointer
- panfrost: Support cache-coherent integrations; Fix mutex corruption on
open/close; Cleanupse
- qxl: Cleanups
- radeon: Switch to new TTM allocator
- ticdc: Fix build failure
- vmwgfx: Switch to new TTM allocator
- xlnx: Use dma_request_chan
- fbdev/sh_mobile: Cleanups
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105101641.GA13099@linux-uq9g
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/io-pgtable-arm.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index a7a9bc08dcd1..bcfbd0e44a4a 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -417,7 +417,13 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data, << ARM_LPAE_PTE_ATTRINDX_SHIFT); } - if (prot & IOMMU_CACHE) + /* + * Also Mali has its own notions of shareability wherein its Inner + * domain covers the cores within the GPU, and its Outer domain is + * "outside the GPU" (i.e. either the Inner or System domain in CPU + * terms, depending on coherency). + */ + if (prot & IOMMU_CACHE && data->iop.fmt != ARM_MALI_LPAE) pte |= ARM_LPAE_PTE_SH_IS; else pte |= ARM_LPAE_PTE_SH_OS; @@ -1021,6 +1027,9 @@ arm_mali_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie) cfg->arm_mali_lpae_cfg.transtab = virt_to_phys(data->pgd) | ARM_MALI_LPAE_TTBR_READ_INNER | ARM_MALI_LPAE_TTBR_ADRMODE_TABLE; + if (cfg->coherent_walk) + cfg->arm_mali_lpae_cfg.transtab |= ARM_MALI_LPAE_TTBR_SHARE_OUTER; + return &data->iop; out_free_data: |