drm/gma: Remove calls to kmap()

kmap() is being deprecated and these instances are easy to convert to
kmap_local_page().

Furthermore, in gma_crtc_cursor_set() use the memcpy_from_page() helper
instead of an open coded use of kmap_local_page().

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220124015409.807587-4-ira.weiny@intel.com

drm/gma500: Replace references to dev_private with helper function

Replace most references to struct drm_device.dev_private with the new
helper function to_drm_psb_private(). The only references left are in
assignments and the helper itself.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210920141051.30988-2-tzimmermann@suse.de

drm/gma500: Remove CONFIG_X86 conditionals from source files

Remove the CONFIG_X86 conditionals from the source code. The driver
already depends on X86 in the Kconfig file. Also, no one has been
trying to build it on a non-x86 platform recently, or they would have
noticed that drm_ttm_cache_flush() doesn't exist.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210129095604.32423-5-tzimmermann@suse.de

drm/gma500: Remove CONFIG_X86 conditionals from source files

Remove the CONFIG_X86 conditionals from the source code. The driver
already depends on X86 in the Kconfig file. Also, no one has been
trying to build it on a non-x86 platform recently, or they would have
noticed that drm_ttm_cache_flush() doesn't exist.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210129095604.32423-5-tzimmermann@suse.de
(cherry picked from commit 6455af65e978479336309f6c83ce1fc632a2f535)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

drm/gma500/mmu: Actually return an error if one occurs

Fixes the following W=1 kernel build warning(s):

drivers/gpu/drm/gma500/mmu.c: In function ‘psb_mmu_insert_pfn_sequence’:
drivers/gpu/drm/gma500/mmu.c:651:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115181601.3432599-7-lee.jones@linaro.org

drm/gma500/mmu: Remove unused function 'psb_get_default_pd_addr'

Fixes the following W=1 kernel build warning(s):

drivers/gpu/drm/gma500/mmu.c:420:10: warning: no previous prototype for ‘psb_get_default_pd_addr’ [-Wmissing-prototypes]

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115181313.3431493-35-lee.jones@linaro.org

drm/gma500/mmu: Make local function 'psb_mmu_pt_alloc_map_lock()' static

Fixes the following W=1 kernel build warning(s):

drivers/gpu/drm/gma500/mmu.c:316:20: warning: no previous prototype for ‘psb_mmu_pt_alloc_map_lock’ [-Wmissing-prototypes]

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115181313.3431493-19-lee.jones@linaro.org

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 51 franklin st fifth floor boston ma 02110
1301 usa

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 111 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drm/gma500: drop drmp.h include from all .c files

Drop remaining uses of the deprecated drmP.h in gma500

Replaced drmp.h with forward declarations or include files
as relevant.

Moved all include files to blocks in following order:
\#include <linux/*>

\#include <asm/*>

\#include <drm/*>

\#include ""

And within each block sort the include files alphabetically.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190519195526.3422-6-sam@ravnborg.org

gma500: mmu: unmap the correct address

The function kunmap_atomatic() is called on the same variable twice,
i.e. pt->v. In the second call, its parameter should be variable v
rather than pt->v.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1509256512-5962-1-git-send-email-bianpan2016@163.com

drm/gma500: Give MMU code it's own header file

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Make SGX MMU driver actually do something

Old MMU code never wrote PDs or PTEs to any registers. Now we do, and
that's a good start.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

x86, cpufeature: Rename X86_FEATURE_CLFLSH to X86_FEATURE_CLFLUSH

We call this "clflush" in /proc/cpuinfo, and have
cpu_has_clflush()... let's be consistent and just call it that.

Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-mlytfzjkvuf739okyn40p8a5@git.kernel.org

gma500: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>

gma500: mmu: mark psb_mmu_free_pt() and psb_mmu_pt_alloc_map_lock() as static

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: mmu: drop unused psb_get_default_pd_addr()

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: introduce the GTT and MMU handling logic

This fits alongside the GEM support to manage our resources on the card
itself. It's not actually clear we need to configure the MMU at all.
Further research is needed before removing it entirely. For now we suck it
in (slightly abused) from the old semi-free driver.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>