drm/vmwgfx: Implement a buffer object synccpu ioctl.

This ioctl enables inter-process synchronization of buffer objects,
which is needed for mesa Guest-Backed objects.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

drm/vmwgfx: Make sure that the multisampling is off

By default SVGA device creates nonmaskable multisampling surfaces, in
which case multisampleCount of 1 means: the first quality setting
of nonmaskable multisampling surface. Lets change it to make sure
that the backends know that multisampling is really off.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

drm/vmwgfx: Extend the command verifier to handle guest-backed on / off

Make sure we disallow commands if the device doesn't support them.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Fix up the vmwgfx_drv.h header for new files

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Enable 3D for new hardware version

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Add new unused (by user-space) commands to the verifier

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Validate guest-backed shader const commands

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Add guest-backed shaders

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Hook up guest-backed surfaces

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Hook up guest-backed contexts

Contexts are managed by the kernel only, so disable access to GB
context commands from user-space

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Ruzin <zackr@vmware.com>

drm/vmwgfx: Detach backing store from its resources when it is evicted

When the backing store buffer is evicted, Issue a readback from the
resources and notify the resources that they are no longer bound to
a valid backing store.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Hook up guest-backed queries

Perform a translation of legacy query commands should they occur
in the command stream.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Add the possibility to validate a buffer as a MOB

Also do basic consistency checking.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Read bounding box memory from the appropriate register

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Hook up MOBs to TTM as a separate memory type

To bind a buffer object as a MOB, just validate it as a MOB
memory type. We are reusing the GMRID manager, although we create a new
instance of it to manage MOB ids and tomake sure we don't exceed
the maximum amount of MOB pages.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

drm/vmwgfx: Add MOB management

Implement MOB setup, binding and unbinding, but don't hook up to
TTM yet.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Adapt capability reporting to new hardware version

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Conflicts:
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c

drm/vmwgfx: Update the svga register definition

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Replace vram_size with prim_bb_mem for calculation of max resolution

In the future, Scanout buffers need not be backed by VRAM and
the two definitions will differ.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Update the driver user-space interface for guest-backed objects

Not hooked up yet. This is only the definition.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Conflicts:
include/uapi/drm/vmwgfx_drm.h

drm/vmwgfx: Update the svga3d register header file for new device version

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

drm/vmwgfx: Fix the driver for large dma addresses

With dma compliance / IOMMU support added to the driver in kernel 3.13,
the dma addresses can exceed 44 bits, which is what we support in
32-bit mode and with GMR1.
So in 32-bit mode and optionally in 64-bit mode, restrict the dma
addresses to 44 bits, and strip the old GMR1 code.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org

gpu: fix qxl missing crc32_le

Fix build error: qxl uses crc32 functions so it needs to select
CRC32.

Also use angle quotes around a kernel header file name.

drivers/built-in.o: In function `qxl_display_read_client_monitors_config':
(.text+0x19d754): undefined reference to `crc32_le'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Include appropriate header file in r128_ioc32.c

Include appropriate header file drm/r128/r128_drv.h in
drm/r128/r128_ioc32.c because function r128_compat_ioctl() has its
prototype declaration in the header file.

This eliminates the following warning in drm/r128/r128_ioc32.c:
drivers/gpu/drm/r128/r128_ioc32.c:196:6: warning: no previous prototype for ‘r128_compat_ioctl’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark function as static in via_drv.c

Mark function as static because it is not used outside the file
drm/via/via_drv.c.

This eliminates the following warning in drm/via/via_drv.c:
drivers/gpu/drm/via/via_drv.c:49:6: warning: no previous prototype for ‘via_driver_postclose’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark function as static in sis_drv.c

Mark function as static because it is not used outside the file
drm/sis/sis_drv.c.

This eliminates the following warning in drm/sis/sis_drv.c:
drivers/gpu/drm/sis/sis_drv.c:97:6: warning: no previous prototype for ‘sis_driver_postclose’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark function as static in qxl_kms.c

Mark function qxl_device_init() as static in drm/qxl/qxl_kms.c because
it is not used outside this file.

This eliminates the following warning in drm/qxl/qxl_kms.c:
drivers/gpu/drm/qxl/qxl_kms.c:118:5: warning: no previous prototype for ‘qxl_device_init’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Include appropriate header file in mga_ioc32.c

Include appropriate header file drivers/gpu/drm/mga/mga_drv.h in
drm/mga/mga_ioc32.c because function mga_compat_ioctl() has its
prototype declaration in the header file.

This eliminates the following warning in drm/mga/mga_ioc32.c:
drivers/gpu/drm/mga/mga_ioc32.c:207:6: warning: no previous prototype for ‘mga_compat_ioctl’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark functions as static in mgag200_ttm.c

Mark functions mgag200_ttm_global_release(),
mgag200_ttm_bo_is_mgag200_bo() and mgag200_ttm_tt_create() as static in
drm/mgag200/mgag200_ttm.c because they are not used outside this file.

This eliminates the following warning in drm/mgag200/mgag200_ttm.c:
drivers/gpu/drm/mgag200/mgag200_ttm.c:84:1: warning: no previous prototype for ‘mgag200_ttm_global_release’ [-Wmissing-prototypes]
drivers/gpu/drm/mgag200/mgag200_ttm.c:105:6: warning: no previous prototype for ‘mgag200_ttm_bo_is_mgag200_bo’ [-Wmissing-prototypes]
drivers/gpu/drm/mgag200/mgag200_ttm.c:211:16: warning: no previous prototype for ‘mgag200_ttm_tt_create’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark functions as static in mgag200_mode.c

Mark functions mga_set_start_address(), mga_encoder_destroy() and
mga_connector_best_encoder() as static in drm/mgag200/mgag200_mode.c
because they are not used outside this file.

This eliminates the following warnings in drm/mgag200/mgag200_mode.c:
drivers/gpu/drm/mgag200/mgag200_mode.c:694:6: warning: no previous
prototype for ‘mga_set_start_address’ [-Wmissing-prototypes]
drivers/gpu/drm/mgag200/mgag200_mode.c:1401:6: warning: no previous
prototype for ‘mga_encoder_destroy’ [-Wmissing-prototypes]
drivers/gpu/drm/mgag200/mgag200_mode.c:1561:21: warning: no previous
prototype for ‘mga_connector_best_encoder’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark function as static in mgag200_main.c

Mark function mgag200_bo_unref() as static in drm/mgag200/mgag200_main.c
because it is not used outside this file.

This eliminates the following warning in drm/mgag200/mgag200_main.c:
drivers/gpu/drm/mgag200/mgag200_main.c:313:6: warning: no previous prototype for ‘mgag200_bo_unref’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark functions as static and remove unused function in cirrus_ttm.c

Mark functions cirrus_ttm_global_release(), cirrus_ttm_bo_is_cirrus_bo()
and cirrus_ttm_tt_create() as static in drm/cirrus/cirrus_ttm.c because
they are not used outside this file. Remove unused function
cirrus_bo_unpin() from drm/cirrus/cirrus_ttm.c.

This eliminates the following warnings in drm/cirrus/cirrus_ttm.c:
drivers/gpu/drm/cirrus/cirrus_ttm.c:84:1: warning: no previous prototype for ‘cirrus_ttm_global_release’ [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_ttm.c:105:6: warning: no previous prototype for ‘cirrus_ttm_bo_is_cirrus_bo’ [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_ttm.c:211:16: warning: no previous prototype for ‘cirrus_ttm_tt_create’ [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_ttm.c:378:5: warning: no previous prototype for ‘cirrus_bo_unpin’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark functions as static in cirrus_mode.c

Mark functions cirrus_set_start_address(), cirrus_encoder_destroy(),
cirrus_vga_get_modes() and cirrus_connector_best_encoder() as static in
drm/cirrus/cirrus_mode.c because they are not used outside this file.

This eliminates the following warnings in drm/cirrus/cirrus_mode.c:
drivers/gpu/drm/cirrus/cirrus_mode.c:105:6: warning: no previous
prototype for ‘cirrus_set_start_address’ [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_mode.c:456:6: warning: no previous
prototype for ‘cirrus_encoder_destroy’ [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_mode.c:495:5: warning: no previous
prototype for ‘cirrus_vga_get_modes’ [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_mode.c:512:21: warning: no previous
prototype for ‘cirrus_connector_best_encoder’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark function as static in cirrus_main.c

Mark function cirrus_bo_unref() as static in drm/cirrus/cirrus_main.c
because it is not used outside this file.

This eliminates the following warning in drm/cirrus/cirrus_main.c:
drivers/gpu/drm/cirrus/cirrus_main.c:258:6: warning: no previous
prototype for ‘cirrus_bo_unref’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark functions as static in ast_ttm.c

Mark functions ast_ttm_global_release(), ast_ttm_bo_is_ast_bo() and
ast_ttm_tt_create() as static in drm/ast/ast_ttm.c because they are not
used outside this file.

This eliminates the following warnings in drm/ast/ast_ttm.c:
drivers/gpu/drm/ast/ast_ttm.c:84:1: warning: no previous prototype for
‘ast_ttm_global_release’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_ttm.c:105:6: warning: no previous prototype for
‘ast_ttm_bo_is_ast_bo’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_ttm.c:211:16: warning: no previous prototype for
‘ast_ttm_tt_create’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark functions as static in ast_mode.c

Mark functions ast_set_sync_reg(), ast_set_dac_reg(),
ast_set_start_address_crt1(), ast_crtc_init(), ast_encoder_init(),
ast_connector_init(), ast_cursor_init(), ast_cursor_fini(),
ast_show_cursor() and ast_hide_cursor() as static in drm/ast/ast_mode.c
because they are not used outside this file.

This eliminates the following warning in drm/ast/ast_mode.c:
drivers/gpu/drm/ast/ast_mode.c:407:6: warning: no previous prototype for
‘ast_set_sync_reg’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:418:6: warning: no previous prototype for
‘ast_set_dac_reg’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:430:6: warning: no previous prototype for
‘ast_set_start_address_crt1’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:626:5: warning: no previous prototype for
‘ast_crtc_init’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:713:5: warning: no previous prototype for
‘ast_encoder_init’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:780:5: warning: no previous prototype for
‘ast_connector_init’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:813:5: warning: no previous prototype for
‘ast_cursor_init’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:850:6: warning: no previous prototype for
‘ast_cursor_fini’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:968:6: warning: no previous prototype for
‘ast_show_cursor’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_mode.c:979:6: warning: no previous prototype for
‘ast_hide_cursor’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Mark function as static and remove unused function in ast_main.c

Mark function ast_bo_unref() as static because it is not used outside
file ast_main.c and remove unused function ast_get_max_dclk() in
ast_main.c.

This eliminates the following warning in drm/ast/ast_main.c:
drivers/gpu/drm/ast/ast_main.c:192:10: warning: no previous prototype
for ‘ast_get_max_dclk’ [-Wmissing-prototypes]
drivers/gpu/drm/ast/ast_main.c:452:6: warning: no previous prototype for
‘ast_bo_unref’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers: gpu: Include appropriate header file in drm_usb.c

Include appropriate header file include/drm/drm_usb.h in drm/drm_usb.c
because functions drm_get_usb_dev(), drm_usb_init() and drm_usb_exit()
have their prototype declarations in the header file.

This eliminates the following warning in drm/drm_usb.c:
drivers/gpu/drm/drm_usb.c:5:5: warning: no previous prototype for
‘drm_get_usb_dev’ [-Wmissing-prototypes]
drivers/gpu/drm/drm_usb.c:61:5: warning: no previous prototype for
‘drm_usb_init’ [-Wmissing-prototypes]
drivers/gpu/drm/drm_usb.c:75:6: warning: no previous prototype for
‘drm_usb_exit’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drm/gma500: Remove unused function declaration

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drm: store the gem vma offset manager in a typed pointer

This was hidden in a generic void * dev->mm_private. But only ever
used for gem. But thanks to this fake generic pretension no one
noticed that Rob's drm drivers are now all broken.

So just give the offset manager a type pointer and fix up msm, omapdrm
and tilcdc.

v2: Fixup compile fail.

v3: Fixup rebase fail that David spotted.

Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge tag 'vmwgfx-next-2014-01-13' of git://people.freedesktop.org/~thomash/linux into drm-next

Anyway, nothing big here, Three more code cleanup patches from Rashika
Kheria, and one TTM/vmwgfx patch from me that tightens security around TTM
objects enough for them to opened using prime objects from render nodes:

Previously any client could access a shared buffer using the "name", also
without actually opening it. Now a reference is required, and for render nodes
such a reference is intended to only be obtainable using a prime fd.

vmwgfx-next 2014-01-13 pull request

* tag 'vmwgfx-next-2014-01-13' of git://people.freedesktop.org/~thomash/linux:
  drivers: gpu: Mark functions as static in vmwgfx_fence.c
  drivers: gpu: Mark functions as static in vmwgfx_buffer.c
  drivers: gpu: Mark functions as static in vmwgfx_kms.c
  drm/ttm: ttm object security fixes for render nodes

Merge tag 'ttm-next-2014-01-13' of git://people.freedesktop.org/~thomash/linux into drm-next

Some code cleanup by Rashika Keria,
VM stuff for ttm:
-Use PFNMAP instead of MIXEDMAP where possible for performance
-Refuse to fault imported pages, an initial step to support dma-bufs
better from within TTM.
-Correctly set page mapping and -index members. These are needed in various
places in the vm subsystem that we are not using yet, but plan to use soonish:
For example unmap-mapping-range keeping COW pages, and dirty tracking
fbdefio style, but also for PCI memory.

ttm-next 2013-01-14 pull request

* tag 'ttm-next-2014-01-13' of git://people.freedesktop.org/~thomash/linux:
  drivers: gpu: Remove unused function in ttm_lock.c
  drivers: gpu: Mark function as static in ttm_bo_util.c
  drivers: gpu: Mark function as static in ttm_bo.c
  drm/ttm: Correctly set page mapping and -index members
  drm/ttm: Refuse to fault (prime-) imported pages
  drm/ttm: Use VM_PFNMAP for shared bo maps

drm/cirrus: Fix cirrus drm driver for fbdev + qemu

Xorg fbdev driver requires smem_start/smem_len, otherwise
it tries to map 0 bytes as video memory.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=856760
Signed-off-by: Martin Koegler <martin.koegler@chello.at>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge branch 'exynos-drm-next' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-next

This pull request adds an anon file for exynos specific mmaper
to resolve potential a dead lock issue pointed out by Al Viro,
and fixes build break of drm-next.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: fix build error caused by removed drm core macros
  drm/exynos: use a new anon file for exynos gem mmaper

Merge branch 'drm-next-3.14-wip' of git://people.freedesktop.org/~agd5f/linux into drm-next

This is the drm-next pull for radeon for 3.14. Highlights include:
- dpm rework which fixes some issues and allows us to enable dpm by
default on CIK parts
- enable clockgating on CIK parts
- pci config reset.  This is a bus-level chip reset that can be more
reliable than soft reset in certain cases.  Disabled by default.  Enable
with the hard_reset module option.
- big endian rptr/wrptr update fixes
- lots of debugfs improvements
- some driver cleanup patches from Rashika Kheria
- bug fixes

* 'drm-next-3.14-wip' of git://people.freedesktop.org/~agd5f/linux: (50 commits)
  drm/radeon: implement pci config reset for CIK (v3)
  drm/radeon: implement pci config reset for SI (v2)
  drm/radeon: implement pci config reset for evergreen/cayman (v2)
  drm/radeon: implement pci config reset for r6xx/7xx (v3)
  drm/radeon: add pci config hard reset
  drm/radeon: add hard_reset module parameter
  drm/radeon: skip colorbuffer checking if COLOR_INFO.FORMAT is set to INVALID
  radeon/pm: Guard access to rdev->pm.power_state array
  drivers: gpu: Move prototype declarations to header file radeon_mode.h from radeon_atombios.c and radeon_combios.c
  drivers: gpu: Move prototype declaration to header file radeon_mode.h
  drm/radeon: move com/atombios scratch reg functions to radeon_mode.h
  drm/radeon/dpm: make some functions static for TN
  drm/radeon/dpm: make some functions static for sumo
  drm/radeon/dpm: make some functions static for CI
  drivers: gpu: Include appropriate header file in ci_smc.c
  drivers: gpu: Move prototype declaration to header file radeon_mode.h from atombios_i2c.c
  drivers: gpu: Include appropriate header file in si_smc.c and remove prototype declaration from header file sislands_smc.h
  drivers: gpu: Add static keyword to the definition of KMS_INVALID_IOCTL in radeon_kms.c
  drivers: gpu: Mark function as static in r600_hdmi.c
  drivers: gpu: Mark function as static in radeon_gem.c
  ...

Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next

MSM tree from Rob.

* 'msm-next' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: add a330/apq8x74
  drm/msm: add mdp5/apq8x74
  drm/msm: add hdmi support for apq8x74/mdp5
  drm/msm: move irq utils to mdp_kms
  drm/msm: split out msm_kms.h
  drm/msm: mdp4_format -> mdp_format
  drm/msm: resync generated headers
  drm/msm: move mdp4 -> mdp/mdp4
  drm/msm: add support for msm8060ab/bstem
  drm/msm: add support for non-IOMMU systems
  drm/msm: fix bus scaling
  drm/msm: add missing MODULE_FIRMWARE()s
  drm/msm: COMPILE_TEST support

drm/msm: add a330/apq8x74

Add support for adreno 330.  Not too much different, just a few
differences in initial configuration plus setting OCMEM base.
Userspace support is already in upstream mesa.

Note that the existing DT code is simply using the bindings from
downstream android kernel, to simplify porting of this driver to
existing devices.  These do not constitute any committed/stable
DT ABI.  The addition of proper DT bindings will be a subsequent
patch, at which point (as best as possible) I will try to support
either upstream bindings or what is found in downstream android
kernel, so that existing device DT files can be used.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: add mdp5/apq8x74

Add support for the new MDP5 display controller block.  The mapping
between parts of the display controller and KMS is:

  plane   -> PIPE{RGBn,VIGn}             \
  crtc    -> LM (layer mixer)            |-> MDP "device"
  encoder -> INTF                        /
  connector -> HDMI/DSI/eDP/etc          --> other device(s)

Unlike MDP4, it appears we can get by with a single encoder, rather
than needing a different implementation for DTV, DSI, etc.  (Ie. the
register interface is same, just different bases.)

Also unlike MDP4, all the IRQs for other blocks (HDMI, DSI, etc) are
routed through MDP.

And finally, MDP5 has this "Shared Memory Pool" (called "SMP"), from
which blocks need to be allocated to the active pipes based on fetch
stride.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: add hdmi support for apq8x74/mdp5

The HDMI block is basically the same between older SoC's with mdp4
display controller, and newer ones with mdp5.

So mostly this consists of better abstracting out the different sets of
regulators, clks, etc.  In particular, for regulators and clks we can
split it up by what is needed for hot plug detect to work, and what is
needed to light up the display.

Also, 8x74 has a new phy.. a very simple one, but split out into a
different mmio space.  And with mdp5, the irq is shared with mdp, so we
don't directly register our own irq handler.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: move irq utils to mdp_kms

We'll want basically the same thing for mdp5, so refactor it out so it
can be shared.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: split out msm_kms.h

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: mdp4_format -> mdp_format

This can be shared between mdp4 and mdp5.  Both use the same set of
parameters to describe the format to the hw.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: resync generated headers

resync to latest envytools db, add mdp5 registers

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: move mdp4 -> mdp/mdp4

There are some little bits and pieces that mdp4 and mdp5 can share, so
move things around so that we can have both in a common parent
directory.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: add support for msm8060ab/bstem

This adds the necessary configuration for the APQ8060A SoC (dual-core
krait + a320 gpu) as found on the bstem board.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: add support for non-IOMMU systems

Add a VRAM carveout that is used for systems which do not have an IOMMU.

The VRAM carveout uses CMA.  The arch code must setup a CMA pool for the
device (preferrably in highmem.. a 256m-512m VRAM pool in lowmem is not
cool).  The user can configure the VRAM pool size using msm.vram module
param.

Technically, the abstraction of IOMMU behind msm_mmu is not strictly
needed, but it simplifies the GEM code a bit, and will be useful later
when I add support for a2xx devices with GPUMMU, so I decided to keep
this part.

It appears to be possible to configure the GPU to restrict access to
addresses within the VRAM pool, but this is not done yet.  So for now
the GPU will refuse to load if there is no sort of mmu.  Once address
based limits are supported and tested to confirm that we aren't giving
the GPU access to arbitrary memory, this restriction can be lifted

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: fix bus scaling

This got a bit broken with original patches when re-arranging things to
move dependencies on mach-msm inside #ifndef OF.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: add missing MODULE_FIRMWARE()s

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/msm: COMPILE_TEST support

With a simple stub, we can get COMPILE_TEST support.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drm/radeon: implement pci config reset for CIK (v3)

pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

v2: fix rebase
v3: hide behind module parameter

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: implement pci config reset for SI (v2)

pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

v2: hide behind module parameter

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: implement pci config reset for evergreen/cayman (v2)

pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

v2: put behind module parameter

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: implement pci config reset for r6xx/7xx (v3)

pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

There's not much information still available on
r6xx, so r6xx is based on guess-work.

v2: put behind module parameter
v3: add IGP check

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: add pci config hard reset

This is used to hard reset the asic.  If a soft
reset is not able to reset things, a hard reset
can be used.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: add hard_reset module parameter

Enabling this parameter enables pci config reset,
aka hard reset, which is a bus level chip reset.
In some cases this works more reliably than a soft
reset.  Disabled by default.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: skip colorbuffer checking if COLOR_INFO.FORMAT is set to INVALID

This fixes a bug which was causing rejections of valid GPU commands
from userspace.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

radeon/pm: Guard access to rdev->pm.power_state array

It's never allocated on systems without an ATOMBIOS or COMBIOS ROM.

Should fix an oops I encountered while resetting the GPU after a lockup
on my PowerBook with an RV350.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

drivers: gpu: Mark functions as static in vmwgfx_fence.c

Mark functions as static because they are not used outside the file
drm/vmwgfx/vmwgfx_fence.c.

This eliminates the following warnings in drm/vmwgfx/vmwgfx_fence.c:
drivers/gpu/drm/vmwgfx/vmwgfx_fence.c:274:6: warning: no previous prototype for ‘vmw_fences_perform_actions’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_fence.c:900:6: warning: no previous prototype for ‘vmw_fence_obj_add_action’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_fence.c:996:5: warning: no previous prototype for ‘vmw_event_fence_action_create’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

drivers: gpu: Mark functions as static in vmwgfx_buffer.c

Mark functions as static because they are not used outside the file
drm/vmwgfx/vmwgfx_buffer.c.

This eliminates the following warnings in drm/vmwgfx/vmwgfx_buffer.c:
drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c:520:16: warning: no previous prototype for ‘vmw_ttm_tt_create’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c:549:5: warning: no previous prototype for ‘vmw_invalidate_caches’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c:554:5: warning: no previous prototype for ‘vmw_init_mem_type’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c:592:6: warning: no previous prototype for ‘vmw_evict_flags’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

drivers: gpu: Mark functions as static in vmwgfx_kms.c

Mark functions as static because they are not used outside the file
drm/vmwgfx/vmwgfx_kms.c.

This eliminates the following warnings in drm/vmwgfx/vmwgfx_kms.c:
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c:43:6: warning: no previous prototype for ‘vmw_clip_cliprects’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c:426:6: warning: no previous prototype for ‘vmw_framebuffer_surface_destroy’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c:592:5: warning: no previous prototype for ‘vmw_framebuffer_surface_dirty’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c:757:6: warning: no previous prototype for ‘vmw_framebuffer_dmabuf_destroy’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c:943:5: warning: no previous prototype for ‘vmw_framebuffer_dmabuf_dirty’ [-Wmissing-prototypes]
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c:1666:5: warning: no previous prototype for ‘vmw_du_update_layout’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

drivers: gpu: Remove unused function in ttm_lock.c

Remove unused function ttm_write_lock_downgrade() from
drm/ttm/ttm_lock.c.

This eliminates the following warning in drm/ttm/ttm_lock.c:
drivers/gpu/drm/ttm/ttm_lock.c:189:6: warning: no previous prototype for ‘ttm_write_lock_downgrade’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

drivers: gpu: Mark function as static in ttm_bo_util.c

Mark functions as static because they are not used outside the file
drm/ttm/ttm_bo_util.c.

This eliminates the following warnings in drm/ttm/ttm_bo_util.c:
drivers/gpu/drm/ttm/ttm_bo_util.c:190:5: warning: no previous prototype for ‘ttm_mem_reg_ioremap’ [-Wmissing-prototypes]
drivers/gpu/drm/ttm/ttm_bo_util.c:222:6: warning: no previous prototype for ‘ttm_mem_reg_iounmap’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

drivers: gpu: Mark function as static in ttm_bo.c

Mark function as static because it is not used outside file
drm/ttm/ttm_bo.c.

This eliminates the following warning in drm/ttm/ttm_bo.c:
drivers/gpu/drm/ttm/ttm_bo.c:960:5: warning: no previous prototype for ‘ttm_bo_move_buffer’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

drm/ttm: ttm object security fixes for render nodes

When a client looks up a ttm object, don't look it up through the device hash
table, but rather from the file hash table. That makes sure that the client
has indeed put a reference on the object, or in gem terms, has opened
the object; either using prime or using the global "name".

To avoid a performance loss, make sure the file hash table entries can be
looked up from under an RCU lock, and as a consequence, replace the rwlock
with a spinlock, since we never need to take it in read mode only anymore.

Finally add a ttm object lookup function for the device hash table, that is
intended to be used when we put a ref object on a base object or, in  gem terms,
when we open the object.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

drm/ttm: Correctly set page mapping and -index members

Needed for some vm operations; most notably unmap_mapping_range() with
even_cows = 0.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

drm/ttm: Refuse to fault (prime-) imported pages

This is illegal for at least two reasons:

1) While it may work on some platforms / iommus, obtaining page pointers from
mapped sg-lists is illegal, since the DMA API allows page pointer information
to be destroyed in the sg mapping process.

2) TTM has no way of determining the linear kernel map caching state of the
underlying pages. PTEs with conflicting caching state pointing to the same
pfn is not allowed.

TTM operations touching pages of imported sg-tables should be redirected through
the proper dma-buf operations.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>

drm/ttm: Use VM_PFNMAP for shared bo maps

VM_PFNMAP is faster than VM_MIXEDMAP due to reduced page administration so
use it for shared maps where we don't have any Copy-On-Write pages. For
private maps, we continue to use VM_MIXEDMAP.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

drivers: gpu: Move prototype declarations to header file radeon_mode.h from radeon_atombios.c and radeon_combios.c

Move prototype declarations of functions radeon_get_encoder_enum() and
radeon_link_encoder_connector() to header file drm/radeon/radeon_mode.h
because they are used by more than one file.

This eliminates the following warnings in drm/radeon/radeon_encoders.c:
drivers/gpu/drm/radeon/radeon_encoders.c:86:1: warning: no previous prototype for ‘radeon_get_encoder_enum’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_encoders.c:162:1: warning: no previous prototype for ‘radeon_link_encoder_connector’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Move prototype declaration to header file radeon_mode.h

Move prototype declaration of functions radeon_add_atom_connector() and
radeon_add_legacy_connector() to header file drm/radeon/radeon_mode.h
because  they are used by more than one file.

This eliminates the following warning in drm/radeon/radeon_connectors.c:
drivers/gpu/drm/radeon/radeon_connectors.c:1588:1: warning: no previous prototype for ‘radeon_add_atom_connector’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_connectors.c:2020:1: warning: no previous prototype for ‘radeon_add_legacy_connector’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: move com/atombios scratch reg functions to radeon_mode.h

fixes warnings with -Wmissing-prototypes

Based on initial patches from Rashika Kheria.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Rashika Kheria <rashika.kheria@gmail.com>

drm/radeon/dpm: make some functions static for TN

Noticed by Rashika Kheria and cherry-picked from
her larger patch set.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Rashika Kheria <rashika.kheria@gmail.com>

drm/radeon/dpm: make some functions static for sumo

Noticed by Rashika Kheria and cherry-picked from
her larger patch set.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Rashika Kheria <rashika.kheria@gmail.com>

drm/radeon/dpm: make some functions static for CI

Noticed by Rashika Kheria and cherry-picked from
her larger patch set.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Rashika Kheria <rashika.kheria@gmail.com>

drivers: gpu: Include appropriate header file in ci_smc.c

Include header file drm/radeon/ci_dpm.h in drm/radeon/ci_smc.c because
it uses function declared in the header file.

This eliminates the following warnings in drm/radeon/ci_smc.c:
drivers/gpu/drm/radeon/ci_smc.c:46:5: warning: no previous prototype for ‘ci_copy_bytes_to_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:113:6: warning: no previous prototype for ‘ci_start_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:121:6: warning: no previous prototype for ‘ci_reset_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:129:5: warning: no previous prototype for ‘ci_program_jump_on_start’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:136:6: warning: no previous prototype for ‘ci_stop_smc_clock’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:145:6: warning: no previous prototype for ‘ci_start_smc_clock’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:154:6: warning: no previous prototype for ‘ci_is_smc_running’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:165:14: warning: no previous prototype for ‘ci_send_msg_to_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:186:14: warning: no previous prototype for ‘ci_wait_for_smc_inactive’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:204:5: warning: no previous prototype for ‘ci_load_smc_ucode’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:251:5: warning: no previous prototype for ‘ci_read_smc_sram_dword’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/ci_smc.c:266:5: warning: no previous prototype for ‘ci_write_smc_sram_dword’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Move prototype declaration to header file radeon_mode.h from atombios_i2c.c

Move prototype declaration of function radeon_atom_copy_swap() to header
file drm/radeon/radeon_mode.h because it is used by more than one file.

This eliminates the following warnings in drm/radeon/atombios_dp.c:
drivers/gpu/drm/radeon/atombios_dp.c:53:6: warning: no previous prototype for ‘radeon_atom_copy_swap’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Include appropriate header file in si_smc.c and remove prototype declaration from header file sislands_smc.h

Include header file gpu/drm/radeon/sislands_smc.h in drm/radeon/si_smc.c
because it uses function declared in the header file.

Remove prototype declaration of function si_set_smc_sram_address() from
drm/radeon/sislands_smc.h because the function is used only in one file
where it is declared static already.

This eliminates the following warnings in drm/radeon/si_smc.c:
drivers/gpu/drm/radeon/si_smc.c:46:5: warning: no previous prototype for ‘si_copy_bytes_to_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:112:6: warning: no previous prototype for ‘si_start_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:121:6: warning: no previous prototype for ‘si_reset_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:135:5: warning: no previous prototype for ‘si_program_jump_on_start’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:142:6: warning: no previous prototype for ‘si_stop_smc_clock’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:151:6: warning: no previous prototype for ‘si_start_smc_clock’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:160:6: warning: no previous prototype for ‘si_is_smc_running’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:171:14: warning: no previous prototype for ‘si_send_msg_to_smc’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:192:14: warning: no previous prototype for ‘si_wait_for_smc_inactive’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:210:5: warning: no previous prototype for ‘si_load_smc_ucode’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:269:5: warning: no previous prototype for ‘si_read_smc_sram_dword’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/si_smc.c:284:5: warning: no previous prototype for ‘si_write_smc_sram_dword’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Add static keyword to the definition of KMS_INVALID_IOCTL in radeon_kms.c

Add static keyword to the definition of KMS_INVALID_IOCTL(name) in
radeon_kms.c because the functions passed to it as arguments are not
used anywhere else.

This eliminates the following warnings in drm/radeon/radeon_kms.c:
drivers/gpu/drm/radeon/radeon_kms.c:719:1: warning: no previous prototype for ‘radeon_cp_init_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:720:1: warning: no previous prototype for ‘radeon_cp_start_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:721:1: warning: no previous prototype for ‘radeon_cp_stop_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:722:1: warning: no previous prototype for ‘radeon_cp_reset_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:723:1: warning: no previous prototype for ‘radeon_cp_idle_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:724:1: warning: no previous prototype for ‘radeon_cp_resume_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:725:1: warning: no previous prototype for ‘radeon_engine_reset_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:726:1: warning: no previous prototype for ‘radeon_fullscreen_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:727:1: warning: no previous prototype for ‘radeon_cp_swap_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:728:1: warning: no previous rototype for ‘radeon_cp_clear_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:729:1: warning: no previous prototype for ‘radeon_cp_vertex_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:730:1: warning: no previous rototype for ‘radeon_cp_indices_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:731:1: warning: no previous prototype for ‘radeon_cp_texture_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:732:1: warning: no previous prototype for ‘radeon_cp_stipple_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:733:1: warning: no previous prototype for ‘radeon_cp_indirect_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:734:1: warning: no previous prototype for ‘radeon_cp_vertex2_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:735:1: warning: no previous prototype for ‘radeon_cp_cmdbuf_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:736:1: warning: no previous prototype for ‘radeon_cp_getparam_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:737:1: warning: no previous prototype for ‘radeon_cp_flip_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:738:1: warning: no previous prototype for ‘radeon_mem_alloc_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:739:1: warning: no previous prototype for ‘radeon_mem_free_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:740:1: warning: no previous rototype for ‘radeon_mem_init_heap_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:741:1: warning: no previous rototype for ‘radeon_irq_emit_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:742:1: warning: no previous prototype for ‘radeon_irq_wait_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:743:1: warning: no previous rototype for ‘radeon_cp_setparam_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:744:1: warning: no previous prototype for ‘radeon_surface_alloc_kms’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_kms.c:745:1: warning: no previous prototype for ‘radeon_surface_free_kms’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Mark function as static in r600_hdmi.c

Mark function r600_audio_set_dto() as static in drm/radeon/r600_hdmi.c
because it is not used outside this file.

This eliminates the following warning in drm/radeon/r600_hdmi.c:
drivers/gpu/drm/radeon/r600_hdmi.c:253:6: warning: no previous prototype for ‘r600_audio_set_dto’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Mark function as static in radeon_gem.c

Mark function radeon_gem_set_domain() as static in
drm/radeon/radeon_gem.c because it is not used outside this file.

This eliminates the following warning in drm/radeon/radeon_gem.c:
drivers/gpu/drm/radeon/radeon_gem.c:89:5: warning: no previous prototype for ‘radeon_gem_set_domain’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Mark function as static in radeon_kms.c

Mark function radeon_info_ioctl() as static in drm/radeon/radeon_kms.c
because it is not used outside this file.

This eliminates the following warning in drm/radeon/radeon_kms.c:
drivers/gpu/drm/radeon/radeon_kms.c:194:5: warning: no previous prototype for ‘radeon_info_ioctl’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Mark functions as static in radeon_device.c

Mark functions radeon_doorbell_init() and radeon_doorbell_fini() as
static in drm/radeon/radeon_device.c because they are not used outside
this file.

This eliminates the following warning in drm/radeon/radeon_device.c:
drivers/gpu/drm/radeon/radeon_device.c:252:5: warning: no previous prototype for ‘radeon_doorbell_init’ [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_device.c:281:6: warning: no previous prototype for ‘radeon_doorbell_fini’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers: gpu: Mark function as static in radeon_object.c

Mark function radeon_bo_clear_va() as static in
drm/radeon/radeon_object.c because it is not used outside this file.

This eliminates the following warning in drm/radeon/radeon_object.c:
drivers/gpu/drm/radeon/radeon_object.c:49:6: warning: no previous prototype for ‘radeon_bo_clear_va’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: warn users when hw_i2c is enabled (v2)

The hw i2c engines are disabled by default as the
current implementation is still experimental.  Print
a warning when users enable it so that it's obvious
when the option is enabled.

v2: check for non-0 rather than 1

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org

drm/exynos: fix build error caused by removed drm core macros

DRM_HZ and DRM_WAKEUP macros are removed, but they still remained.
So this patch fixes build errors by replacing the macros.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drm/exynos: use a new anon file for exynos gem mmaper

This patch resolves potential deadlock issue that can be incurred
by changing file->f_op and filp->private_data to exynos specific
mapper ops and gem object temporarily.

To resolve this issue, this patch creates a new anon file dedicated
to exynos specific mmaper, and making it used instead of existing one.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

drm/radeon: fix pptable.h portability

The following isn't compatible with gcc 2.x:

pragma pack(push, 1)
...
pragma pack(pop)

replace with:

pragma pack(1)
...
pragma pack()

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=67961

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: remove generic rptr/wptr functions (v2)

Fill in asic family specific versions rather than
using the generic version.  This lets us handle asic
specific differences more easily.  In this case, we
disable sw swapping of the rtpr writeback value on
r6xx+ since the hw does it for us.  Fixes bogus
rptr readback on BE systems.

v2: remove missed cpu_to_le32(), add comments

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: enable dpm by default on CI APUs

Dynamic power mangement works reliably now, so
enable it by default.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: enable dpm by default on CI dGPUs

Dynamic power mangement works reliably now, so
enable it by default.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: enable gfx cgcg on CIK APUs

Enable coarse grained clockgating.  This works properly now
that smc is initialized earlier than the rlc and cp.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>