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2019-01-21drm: fix drm_can_sleep() commentSam Ravnborg1-1/+1
Reversed logic when writing the original comment, now fixed. Fixes: e9eafcb58921 ("drm: move drm_can_sleep() to drm_util.h") Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190120171217.12508-1-sam@ravnborg.org
2019-01-16drm: fix alpha build after drm_util.h changeSam Ravnborg1-2/+2
0-DAY reported the following bug: tree: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next head: 21376e2c3c5bad5e87ba700c055c8a8235c2bfd5 commit: e9eafcb589213395232084a2378e2e90f67feb29 [1/2] drm: move drm_can_sleep() to drm_util.h config: alpha-allmodconfig (attached as .config) ... In file included from include/linux/irqflags.h:16:0, from include/drm/drm_util.h:35, from drivers/gpu/drm/qxl/qxl_cmd.c:28: >> arch/alpha/include/asm/irqflags.h:58:15: error: unknown type name 'bool' static inline bool arch_irqs_disabled_flags(unsigned long flags) ^~~~ And later following bug: tree: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next head: 21376e2c3c5bad5e87ba700c055c8a8235c2bfd5 commit: e9eafcb589213395232084a2378e2e90f67feb29 [1/2] drm: move drm_can_sleep() to drm_util.h config: ia64-allyesconfig (attached as .config) ... In file included from arch/ia64/include/asm/irqflags.h:14, from include/linux/irqflags.h:16, from include/drm/drm_util.h:35, from drivers/gpu/drm/qxl/qxl_cmd.c:28: arch/ia64/include/asm/pal.h: In function 'ia64_pal_tr_read': arch/ia64/include/asm/pal.h:1703:64: error: implicit declaration of function 'ia64_tpa'; did you mean 'ia64_pal'? [-Werror=implicit-function-declaration] PAL_CALL_PHYS_STK(iprv, PAL_VM_TR_READ, reg_num, tr_type,(u64)ia64_tpa(tr_buffer)); ^~~~~~~~ ... So we have a situation where we do not pull in <linux/types.h> when building for alpha and for ia64 we need even more definitions are required. Two invasive fixes where considered: - Change all declarations of arch_irqs_disabled_flags() to use bool - Add include of <linux/types.h> to all files that uses bool for arch_irqs_disabled_flags To invasive with a too high pain/benefit ratio, so dropped. They would not cover ia64 either. Some less invasive fixes was also considered: - Add include of <linux/types.h> to drm_util.h - Add include of <linux/interrupt.h> to drm_util.h The first was dropped as this did not cover the ia64 case. The latter was considered the best option as there could be other similar cases and we would like the header files below include/drm/ to be selfcontained. So we end up pulling in a lot of stuff not needed, but this is the price we pay in drm/ because the kernel headers are not all selfcontained. While at it, ordred the includefiles in drm_util in alphabetical order. Build tested with alpha,ia64,arm,x86 with allmodconfig and allyesconfig. v2: - fix ia64 build, changed to include interrupt.h - sort include files alphabetically Fixes: 733748ac37b45 ("drm: move drm_can_sleep() to drm_util.h") Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190115214845.8117-1-sam@ravnborg.org
2019-01-14drm: move EXPORT_SYMBOL_FOR_TESTS_ONLY to drm_util.hSam Ravnborg1-0/+10
In the quest to get rid of drmP.h move the newly added EXPORT_SYMBOL_FOR_TESTS_ONLY to drm_util.h. Fix the single user. Add a note to drmP.h to avoid further use of it. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190112193251.20450-3-sam@ravnborg.org
2019-01-14drm: move drm_can_sleep() to drm_util.hSam Ravnborg1-1/+42
Move drm_can_sleep() out of drmP.h to allow users to get rid of the drmP.h include. There was no header file that was a good match for this helper function. So add this to drm_util with the relevant includes. Add include of drm_util.h to all users. v2: - Update comments to use kernel-doc style (Daniel) - Add FIXME to drm_can_sleep and add note that this function should not be used in new code (Daniel) v3: - Fix kernel-doc syntax (Daniel) - Plug drm_util.h into drm-internels.rst (Daniel) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190112193251.20450-2-sam@ravnborg.org
2018-09-09drm: Add drm/drm_util.h header fileDaniel Vetter1-0/+32
We have a bunch of neat little macros all over the place which should move to kernel.h. But some of them died in bikesheds on lkml, and we need a decent home for them. Start out by moving the for_each_if macro there. v2: Rename to drm_util.h instead (Dave&Sean) Cc: Sean Paul <seanpaul@chromium.org> Acked-by: Sean Paul <seanpaul@chromium.org> Cc: Dave Airlie <airlied@gmail.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-1-daniel.vetter@ffwll.ch