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771fe6b912
Add kernel modesetting support to radeon driver, use the ttm memory
manager to manage memory and DRM/GEM to provide userspace API.
In order to avoid backward compatibility issue and to allow clean
design and code the radeon kernel modesetting use different code path
than old radeon/drm driver.
When kernel modesetting is enabled the IOCTL of radeon/drm
driver are considered as invalid and an error message is printed
in the log and they return failure.
KMS enabled userspace will use new API to talk with the radeon/drm
driver. The new API provide functions to create/destroy/share/mmap
buffer object which are then managed by the kernel memory manager
(here TTM). In order to submit command to the GPU the userspace
provide a buffer holding the command stream, along this buffer
userspace have to provide a list of buffer object used by the
command stream. The kernel radeon driver will then place buffer
in GPU accessible memory and will update command stream to reflect
the position of the different buffers.
The kernel will also perform security check on command stream
provided by the user, we want to catch and forbid any illegal use
of the GPU such as DMA into random system memory or into memory
not owned by the process supplying the command stream. This part
of the code is still incomplete and this why we propose that patch
as a staging driver addition, future security might forbid current
experimental userspace to run.
This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX
(radeon up to X1950). Works is underway to provide support for R6XX,
R7XX and newer hardware (radeon from HD2XXX to HD4XXX).
Authors:
Jerome Glisse <jglisse@redhat.com>
Dave Airlie <airlied@redhat.com>
Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
145 lines
4.7 KiB
Plaintext
145 lines
4.7 KiB
Plaintext
#
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# Drm device configuration
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#
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# This driver provides support for the
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# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
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#
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menuconfig DRM
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tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
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depends on (AGP || AGP=n) && PCI && !EMULATED_CMPXCHG && MMU
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select I2C
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select I2C_ALGOBIT
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help
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Kernel-level support for the Direct Rendering Infrastructure (DRI)
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introduced in XFree86 4.0. If you say Y here, you need to select
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the module that's right for your graphics card from the list below.
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These modules provide support for synchronization, security, and
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DMA transfers. Please see <http://dri.sourceforge.net/> for more
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details. You should also select and configure AGP
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(/dev/agpgart) support.
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config DRM_TTM
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tristate
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depends on DRM
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help
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GPU memory management subsystem for devices with multiple
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GPU memory types. Will be enabled automatically if a device driver
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uses it.
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config DRM_TDFX
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tristate "3dfx Banshee/Voodoo3+"
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depends on DRM && PCI
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help
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Choose this option if you have a 3dfx Banshee or Voodoo3 (or later),
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graphics card. If M is selected, the module will be called tdfx.
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config DRM_R128
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tristate "ATI Rage 128"
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depends on DRM && PCI
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help
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Choose this option if you have an ATI Rage 128 graphics card. If M
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is selected, the module will be called r128. AGP support for
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this card is strongly suggested (unless you have a PCI version).
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config DRM_RADEON
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tristate "ATI Radeon"
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depends on DRM && PCI
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select FB_CFB_FILLRECT
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select FB_CFB_COPYAREA
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select FB_CFB_IMAGEBLIT
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select FB
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select FRAMEBUFFER_CONSOLE if !EMBEDDED
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help
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Choose this option if you have an ATI Radeon graphics card. There
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are both PCI and AGP versions. You don't need to choose this to
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run the Radeon in plain VGA mode.
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If M is selected, the module will be called radeon.
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config DRM_I810
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tristate "Intel I810"
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depends on DRM && AGP && AGP_INTEL
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help
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Choose this option if you have an Intel I810 graphics card. If M is
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selected, the module will be called i810. AGP support is required
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for this driver to work.
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choice
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prompt "Intel 830M, 845G, 852GM, 855GM, 865G"
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depends on DRM && AGP && AGP_INTEL
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optional
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config DRM_I830
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tristate "i830 driver"
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help
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Choose this option if you have a system that has Intel 830M, 845G,
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852GM, 855GM or 865G integrated graphics. If M is selected, the
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module will be called i830. AGP support is required for this driver
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to work. This driver is used by the older X releases X.org 6.7 and
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XFree86 4.3. If unsure, build this and i915 as modules and the X server
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will load the correct one.
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config DRM_I915
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tristate "i915 driver"
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select FB_CFB_FILLRECT
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select FB_CFB_COPYAREA
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select FB_CFB_IMAGEBLIT
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select FB
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select FRAMEBUFFER_CONSOLE if !EMBEDDED
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# i915 depends on ACPI_VIDEO when ACPI is enabled
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# but for select to work, need to select ACPI_VIDEO's dependencies, ick
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select VIDEO_OUTPUT_CONTROL if ACPI
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select BACKLIGHT_CLASS_DEVICE if ACPI
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select INPUT if ACPI
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select ACPI_VIDEO if ACPI
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help
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Choose this option if you have a system that has Intel 830M, 845G,
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852GM, 855GM 865G or 915G integrated graphics. If M is selected, the
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module will be called i915. AGP support is required for this driver
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to work. This driver is used by the Intel driver in X.org 6.8 and
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XFree86 4.4 and above. If unsure, build this and i830 as modules and
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the X server will load the correct one.
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config DRM_I915_KMS
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bool "Enable modesetting on intel by default"
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depends on DRM_I915
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help
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Choose this option if you want kernel modesetting enabled by default,
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and you have a new enough userspace to support this. Running old
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userspaces with this enabled will cause pain. Note that this causes
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the driver to bind to PCI devices, which precludes loading things
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like intelfb.
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endchoice
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config DRM_MGA
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tristate "Matrox g200/g400"
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depends on DRM
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help
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Choose this option if you have a Matrox G200, G400 or G450 graphics
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card. If M is selected, the module will be called mga. AGP
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support is required for this driver to work.
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config DRM_SIS
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tristate "SiS video cards"
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depends on DRM && AGP
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depends on FB_SIS || FB_SIS=n
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help
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Choose this option if you have a SiS 630 or compatible video
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chipset. If M is selected the module will be called sis. AGP
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support is required for this driver to work.
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config DRM_VIA
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tristate "Via unichrome video cards"
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depends on DRM
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help
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Choose this option if you have a Via unichrome or compatible video
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chipset. If M is selected the module will be called via.
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config DRM_SAVAGE
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tristate "Savage video cards"
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depends on DRM
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help
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Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister
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chipset. If M is selected the module will be called savage.
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