linux.git/drivers/gpu/drm/ttm, branch v2.6.39

Revert "ttm: Utilize the DMA API for pages that have TTM_PAGE_FLAG_DMA32 set."

2011-04-12T23:15:09+00:00

This reverts commit 69a07f0b117a40fcc1a479358d8e1f41793617f2.

We've tracked a number of problems back to this, and Thomas
thinks we should redesign this for .40/41 anyways so I'm
happy to revert it.

Signed-off-by: Dave Airlie

drm: fix "persistant" typo

2011-04-05T00:22:23+00:00

Signed-off-by: Jan Engelhardt 
Signed-off-by: Dave Airlie

Revert "ttm: Include the 'struct dev' when using the DMA API."

2011-02-23T04:24:01+00:00

This reverts commit 5a893fc28f0393adb7c885a871b8c59e623fd528.

This causes a use after free in the ttm free alloc pages path,
when it tries to get the be after the be has been destroyed.

Signed-off-by: Dave Airlie

Merge branch 'stable/ttm.pci-api.v5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into drm-next

2011-02-23T02:06:39+00:00

* 'stable/ttm.pci-api.v5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  ttm: Include the 'struct dev' when using the DMA API.
  nouveau/ttm/PCIe: Use dma_addr if TTM has set it.
  radeon/ttm/PCIe: Use dma_addr if TTM has set it.
  ttm: Expand (*populate) to support an array of DMA addresses.
  ttm: Utilize the DMA API for pages that have TTM_PAGE_FLAG_DMA32 set.
  ttm: Introduce a placeholder for DMA (bus) addresses.

drm/ttm: call driver move_notify() when doing system->tt bo moves

2011-02-23T01:09:24+00:00

Nouveau doesn't have enough information at ttm_backend_func.bind() time
to implement things like tiled GART, or to keep a buffer at a constant
address in the GPU virtual address space no matter where in physical
memory it's placed.

To resolve this, nouveau will handle binding of all buffers to the GPU
itself from the move_notify() hook.  This commit ensures it's called
for all buffer moves.

Talked to Dave about the impact on radeon, which uses move_notify, it
doesn't look like anything should break there.

Signed-off-by: Ben Skeggs 
Reviewed-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie

ttm: Include the 'struct dev' when using the DMA API.

2011-02-22T18:26:23+00:00

This makes the accounting when using 'debug_dma_dump_mappings()'
and CONFIG_DMA_API_DEBUG=y be assigned to the correct device
instead of 'fallback'.

No functional change - just cosmetic.

Signed-off-by: Konrad Rzeszutek Wilk

ttm: Expand (*populate) to support an array of DMA addresses.

2011-01-27T21:07:58+00:00

We pass in the array of ttm pages to be populated in the GART/MM
of the card (or AGP). Patch titled: "ttm: Utilize the DMA API for
pages that have TTM_PAGE_FLAG_DMA32 set." uses the DMA API to make
those pages have a proper DMA addresses (in the situation where
page_to_phys or virt_to_phys do not give use the DMA (bus) address).

Since we are using the DMA API on those pages, we should pass in the
DMA address to this function so it can save it in its proper fields
(later patches use it).

[v2: Added reviewed-by tag]

Reviewed-by: Thomas Hellstrom 
Signed-off-by: Konrad Rzeszutek Wilk 
Tested-by: Ian Campbell

ttm: Utilize the DMA API for pages that have TTM_PAGE_FLAG_DMA32 set.

2011-01-27T21:03:09+00:00

For pages that have the TTM_PAGE_FLAG_DMA32 flag set we
use the DMA API. We save the bus address in our array which we
use to program the GART (see "radeon/ttm/PCIe: Use dma_addr if TTM
has set it." and "nouveau/ttm/PCIe: Use dma_addr if TTM has set it.").

The reason behind using the DMA API is that under Xen we would
end up programming the GART with the bounce buffer (SWIOTLB)
DMA address instead of the physical DMA address of the TTM page.
The reason being that alloc_page with GFP_DMA32 does not allocate
pages under the the 4GB mark when running under Xen hypervisor.

Under baremetal this means we do the DMA API call earlier instead
of when we program the GART.

For details please refer to:
https://lkml.org/lkml/2011/1/7/251

[v2: Fixed indentation, revised desc, added Reviewed-by]
Reviewed-by: Thomas Hellstrom 
Signed-off-by: Konrad Rzeszutek Wilk 
Tested-by: Ian Campbell

ttm: Introduce a placeholder for DMA (bus) addresses.

2011-01-27T21:02:31+00:00

This is right now limited to only non-pool constructs.

[v2: Fixed indentation issues, add review-by tag]

Reviewed-by: Thomas Hellstrom 
Signed-off-by: Konrad Rzeszutek Wilk 
Tested-by: Ian Campbell

Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

2011-01-11T01:11:39+00:00

* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (390 commits)
  drm/radeon/kms: disable underscan by default
  drm/radeon/kms: only enable hdmi features if the monitor supports audio
  drm: Restore the old_fb upon modeset failure
  drm/nouveau: fix hwmon device binding
  radeon: consolidate asic-specific function decls for pre-r600
  vga_switcheroo: comparing too few characters in strncmp()
  drm/radeon/kms: add NI pci ids
  drm/radeon/kms: don't enable pcie gen2 on NI yet
  drm/radeon/kms: add radeon_asic struct for NI asics
  drm/radeon/kms/ni: load default sclk/mclk/vddc at pm init
  drm/radeon/kms: add ucode loader for NI
  drm/radeon/kms: add support for DCE5 display LUTs
  drm/radeon/kms: add ni_reg.h
  drm/radeon/kms: add bo blit support for NI
  drm/radeon/kms: always use writeback/events for fences on NI
  drm/radeon/kms: adjust default clock/vddc tracking for pm on DCE5
  drm/radeon/kms: add backend map workaround for barts
  drm/radeon/kms: fill gpu init for NI asics
  drm/radeon/kms: add disabled vbios accessor for NI asics
  drm/radeon/kms: handle NI thermal controller
  ...