This is a note to let you know that I've just added the patch titled
drm/radeon: align VM PTBs (Page Table Blocks) to 32K
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-align-vm-ptbs-page-table-blocks-to-32k.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1c01103cb90197900beb534911de558d7a43d0b3 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Fri, 12 Jul 2013 15:56:02 -0400
Subject: drm/radeon: align VM PTBs (Page Table Blocks) to 32K
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit 1c01103cb90197900beb534911de558d7a43d0b3 upstream.
Covers requirements of all current asics.
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon.h | 5 +++++
drivers/gpu/drm/radeon/radeon_gart.c | 12 ++++++------
2 files changed, 11 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -695,6 +695,11 @@ struct radeon_ring {
/* number of entries in page table */
#define RADEON_VM_PTE_COUNT (1 << RADEON_VM_BLOCK_SIZE)
+/* PTBs (Page Table Blocks) need to be aligned to 32K */
+#define RADEON_VM_PTB_ALIGN_SIZE 32768
+#define RADEON_VM_PTB_ALIGN_MASK (RADEON_VM_PTB_ALIGN_SIZE - 1)
+#define RADEON_VM_PTB_ALIGN(a) (((a) + RADEON_VM_PTB_ALIGN_MASK) & ~RADEON_VM_PTB_ALIGN_MASK)
+
struct radeon_vm {
struct list_head list;
struct list_head va;
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -466,8 +466,8 @@ int radeon_vm_manager_init(struct radeon
size += rdev->vm_manager.max_pfn * 8;
size *= 2;
r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager,
- RADEON_GPU_PAGE_ALIGN(size),
- RADEON_GPU_PAGE_SIZE,
+ RADEON_VM_PTB_ALIGN(size),
+ RADEON_VM_PTB_ALIGN_SIZE,
RADEON_GEM_DOMAIN_VRAM);
if (r) {
dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n",
@@ -621,10 +621,10 @@ int radeon_vm_alloc_pt(struct radeon_dev
}
retry:
- pd_size = RADEON_GPU_PAGE_ALIGN(radeon_vm_directory_size(rdev));
+ pd_size = RADEON_VM_PTB_ALIGN(radeon_vm_directory_size(rdev));
r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager,
&vm->page_directory, pd_size,
- RADEON_GPU_PAGE_SIZE, false);
+ RADEON_VM_PTB_ALIGN_SIZE, false);
if (r == -ENOMEM) {
r = radeon_vm_evict(rdev, vm);
if (r)
@@ -953,8 +953,8 @@ static int radeon_vm_update_pdes(struct
retry:
r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager,
&vm->page_tables[pt_idx],
- RADEON_VM_PTE_COUNT * 8,
- RADEON_GPU_PAGE_SIZE, false);
+ RADEON_VM_PTB_ALIGN(RADEON_VM_PTE_COUNT * 8),
+ RADEON_VM_PTB_ALIGN_SIZE, false);
if (r == -ENOMEM) {
r = radeon_vm_evict(rdev, vm);
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-3.10/drm-radeon-fix-combios-tables-on-older-cards.patch
queue-3.10/drm-radeon-align-vm-ptbs-page-table-blocks-to-32k.patch
queue-3.10/drm-radeon-fix-uvd-fence-emit.patch
queue-3.10/drm-radeon-fix-endian-issues-with-dp-handling-v3.patch
queue-3.10/drm-radeon-another-card-with-wrong-primary-dac-adj.patch
queue-3.10/drm-radeon-improve-dac-adjust-heuristics-for-legacy-pdac.patch
queue-3.10/drm-radeon-allow-selection-of-alignment-in-the-sub-allocator.patch
queue-3.10/drm-radeon-vm-only-align-the-pt-base-to-32k.patch
queue-3.10/drm-radeon-hdmi-make-sure-we-have-an-afmt-block-assigned.patch
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