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Commit 57692c94 authored by Eric Anholt's avatar Eric Anholt
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drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+ 



This driver will be used to support Mesa on the Broadcom 7268 and 7278
platforms.

V3D 3.3 introduces an MMU, which means we no longer need CMA or vc4's
complicated CL/shader validation scheme.  This massively changes the
GEM behavior, so I've forked off to a new driver.

v2: Mark SUBMIT_CL as needing DRM_AUTH.  coccinelle fixes from kbuild
    test robot. Drop personal git link from MAINTAINERS.  Don't
    double-map dma-buf imported BOs.  Add kerneldoc about needing MMU
    eviction.  Drop prime vmap/unmap stubs.  Delay mmap offset setup
    to mmap time.  Use drm_dev_init instead of _alloc.  Use
    ktime_get() for wait_bo timeouts.  Drop drm_can_sleep() usage,
    since we don't modeset.  Switch page tables back to WC (debug
    change to coherent had slipped in).  Switch
    drm_gem_object_unreference_unlocked() to
    drm_gem_object_put_unlocked().  Simplify overflow mem handling by
    not sharing overflow mem between jobs.
v3: no changes
v4: align submit_cl to 64 bits (review by airlied), check zero flags in
    other ioctls.

Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v4)
Acked-by: Dave Airlie <airlied@linux.ie> (v3, requested submit_cl change)
Link: https://patchwork.freedesktop.org/patch/msgid/20180430181058.30181-3-eric@anholt.net
parent 4000626f

Documentation/gpu/drivers.rst

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ GPU Driver Documentation 
   tegra

   tinydrm

   tve200

   v3d

   vc4

   bridge/dw-hdmi

   xen-front

MAINTAINERS

+8 −0
Original line number Diff line number Diff line
@@ -4795,6 +4795,14 @@ S: Maintained 
F:	drivers/gpu/drm/omapdrm/

F:	Documentation/devicetree/bindings/display/ti/



DRM DRIVERS FOR V3D

M:	Eric Anholt <eric@anholt.net>

S:	Supported

F:	drivers/gpu/drm/v3d/

F:	include/uapi/drm/v3d_drm.h

F:	Documentation/devicetree/bindings/display/brcm,bcm-v3d.txt

T:	git git://anongit.freedesktop.org/drm/drm-misc



DRM DRIVERS FOR VC4

M:	Eric Anholt <eric@anholt.net>

T:	git git://github.com/anholt/linux

drivers/gpu/drm/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -267,6 +267,8 @@ source "drivers/gpu/drm/amd/amdkfd/Kconfig" 


source "drivers/gpu/drm/imx/Kconfig"



source "drivers/gpu/drm/v3d/Kconfig"



source "drivers/gpu/drm/vc4/Kconfig"



source "drivers/gpu/drm/etnaviv/Kconfig"

drivers/gpu/drm/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ obj-$(CONFIG_DRM_MGA) += mga/ 
obj-$(CONFIG_DRM_I810)	+= i810/

obj-$(CONFIG_DRM_I915)	+= i915/

obj-$(CONFIG_DRM_MGAG200) += mgag200/

obj-$(CONFIG_DRM_V3D)  += v3d/

obj-$(CONFIG_DRM_VC4)  += vc4/

obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus/

obj-$(CONFIG_DRM_SIS)   += sis/

drivers/gpu/drm/v3d/Kconfig

0 → 100644
+9 −0
Original line number Diff line number Diff line 
config DRM_V3D

	tristate "Broadcom V3D 3.x and newer"

	depends on ARCH_BCM || ARCH_BCMSTB || COMPILE_TEST

	depends on DRM

	depends on COMMON_CLK

	select DRM_SCHED

	help

	  Choose this option if you have a system that has a Broadcom

	  V3D 3.x or newer GPU, such as BCM7268.