From: Matthew Auld <matthew.auld@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 12/20] drm/i915: support 2M pages for the 48b PPGTT
Date: Tue, 27 Jun 2017 15:54:36 +0100 [thread overview]
Message-ID: <20170627145444.20491-13-matthew.auld@intel.com> (raw)
In-Reply-To: <20170627145444.20491-1-matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 8 ++++++++
drivers/gpu/drm/i915/i915_gem_gtt.h | 2 ++
2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 861b1442b6c4..be11c83d5c91 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -972,6 +972,14 @@ static void gen8_ppgtt_insert_huge_entries(struct i915_vma *vma,
max = GEN8_PML4ES_PER_PML4;
page_size = I915_GTT_PAGE_SIZE_1G;
encode |= GEN8_PDPE_PS_1G;
+ } else if (vma->page_sizes.sg & I915_GTT_PAGE_SIZE_2M &&
+ IS_ALIGNED(iter->dma, I915_GTT_PAGE_SIZE_2M) &&
+ rem >= I915_GTT_PAGE_SIZE_2M && !idx.pte) {
+ vaddr = kmap_atomic_px(pd);
+ index = idx.pde;
+ max = I915_PDES;
+ page_size = I915_GTT_PAGE_SIZE_2M;
+ encode |= GEN8_PDE_PS_2M;
} else {
vaddr = kmap_atomic_px(pt);
index = idx.pte;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index e46f05f0cfd9..aa4488637fc9 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -149,6 +149,8 @@ typedef u64 gen8_ppgtt_pml4e_t;
#define GEN8_PPAT_ELLC_OVERRIDE (0<<2)
#define GEN8_PPAT(i, x) ((u64)(x) << ((i) * 8))
+#define GEN8_PDE_PS_2M BIT(7)
+
#define GEN8_PDPE_PS_1G BIT(7)
struct sg_table;
--
2.9.4
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next prev parent reply other threads:[~2017-06-27 14:55 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 14:54 [PATCH 00/20] huge gtt pages Matthew Auld
2017-06-27 14:54 ` [PATCH 01/20] mm/shmem: introduce shmem_file_setup_with_mnt Matthew Auld
2017-06-27 14:54 ` [PATCH 02/20] drm/i915: introduce simple gemfs Matthew Auld
2017-06-27 14:54 ` [PATCH 03/20] drm/i915/gemfs: enable THP Matthew Auld
2017-06-27 14:54 ` [PATCH 04/20] drm/i915: introduce page_size_mask to dev_info Matthew Auld
2017-06-27 14:54 ` [PATCH 05/20] drm/i915: introduce page_size members Matthew Auld
2017-06-29 6:36 ` Zhenyu Wang
2017-06-29 11:54 ` Matthew Auld
2017-06-29 11:59 ` Chris Wilson
2017-06-29 15:33 ` Zhenyu Wang
2017-06-27 14:54 ` [PATCH 06/20] drm/i915: introduce vm set_pages/clear_pages Matthew Auld
2017-06-27 14:54 ` [PATCH 07/20] drm/i915: align the vma start to the largest gtt page size Matthew Auld
2017-06-27 14:54 ` [PATCH 08/20] drm/i915: align 64K objects to 2M Matthew Auld
2017-06-27 14:54 ` [PATCH 09/20] drm/i915: enable IPS bit for 64K pages Matthew Auld
2017-06-27 14:54 ` [PATCH 10/20] drm/i915: disable GTT cache for 2M/1G pages Matthew Auld
2017-06-27 14:54 ` [PATCH 11/20] drm/i915: support 1G pages for the 48b PPGTT Matthew Auld
2017-06-27 14:54 ` Matthew Auld [this message]
2017-06-27 14:54 ` [PATCH 13/20] drm/i915: support 64K " Matthew Auld
2017-06-27 14:54 ` [PATCH 14/20] drm/i915: accurate page size tracking for the ppgtt Matthew Auld
2017-06-27 14:54 ` [PATCH 15/20] drm/i915/debugfs: include some gtt page size metrics Matthew Auld
2017-06-27 14:54 ` [PATCH 16/20] drm/i915/selftests: huge page tests Matthew Auld
2017-06-27 14:54 ` [PATCH 17/20] drm/i915/selftests: mix huge pages Matthew Auld
2017-06-27 14:54 ` [PATCH 18/20] drm/i915: enable platform support for 64K pages Matthew Auld
2017-06-27 14:54 ` [PATCH 19/20] drm/i915: enable platform support for 2M pages Matthew Auld
2017-06-27 14:54 ` [PATCH 20/20] drm/i915: enable platform support for 1G pages Matthew Auld
2017-06-27 15:14 ` ✓ Fi.CI.BAT: success for huge gtt pages (rev3) Patchwork
2017-06-27 17:19 ` [PATCH 00/20] huge gtt pages Chris Wilson
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