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path: root/drivers/gpu/drm/drm_agpsupport.c
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* drm: Upcast struct drm_device.dev to struct pci_device; replace pdevThomas Zimmermann2021-01-191-3/+6
| | | | | | | | | | | | | | | | | | | | We have DRM drivers based on USB, SPI and platform devices. All of them are fine with storing their device reference in struct drm_device.dev. PCI devices should be no exception. Therefore struct drm_device.pdev is deprecated. Instead upcast from struct drm_device.dev with to_pci_dev(). PCI-specific code can use dev_is_pci() to test for a PCI device. This patch changes the DRM core code and documentation accordingly. v4: * split-off pdev deprecation into separate patch Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sam Ravnborg <sam@ravnborg.org> Tested-by: Andy Lavr <andy.lavr@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210118131420.15874-2-tzimmermann@suse.de
* drm/drm_agpsupport: Strip out obviously wrong descriptions and demote to ↵Lee Jones2021-01-181-35/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | standard headers Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/drm_agpsupport.c:61: warning: Function parameter or member 'dev' not described in 'drm_agp_info' drivers/gpu/drm/drm_agpsupport.c:61: warning: Function parameter or member 'info' not described in 'drm_agp_info' drivers/gpu/drm/drm_agpsupport.c:105: warning: Function parameter or member 'dev' not described in 'drm_agp_acquire' drivers/gpu/drm/drm_agpsupport.c:132: warning: Function parameter or member 'dev' not described in 'drm_agp_acquire_ioctl' drivers/gpu/drm/drm_agpsupport.c:132: warning: Function parameter or member 'data' not described in 'drm_agp_acquire_ioctl' drivers/gpu/drm/drm_agpsupport.c:132: warning: Function parameter or member 'file_priv' not described in 'drm_agp_acquire_ioctl' drivers/gpu/drm/drm_agpsupport.c:145: warning: Function parameter or member 'dev' not described in 'drm_agp_release' drivers/gpu/drm/drm_agpsupport.c:171: warning: Function parameter or member 'dev' not described in 'drm_agp_enable' drivers/gpu/drm/drm_agpsupport.c:171: warning: Function parameter or member 'mode' not described in 'drm_agp_enable' drivers/gpu/drm/drm_agpsupport.c:203: warning: Function parameter or member 'dev' not described in 'drm_agp_alloc' drivers/gpu/drm/drm_agpsupport.c:203: warning: Function parameter or member 'request' not described in 'drm_agp_alloc' drivers/gpu/drm/drm_agpsupport.c:256: warning: Function parameter or member 'dev' not described in 'drm_agp_lookup_entry' drivers/gpu/drm/drm_agpsupport.c:256: warning: Function parameter or member 'handle' not described in 'drm_agp_lookup_entry' drivers/gpu/drm/drm_agpsupport.c:279: warning: Function parameter or member 'dev' not described in 'drm_agp_unbind' drivers/gpu/drm/drm_agpsupport.c:279: warning: Function parameter or member 'request' not described in 'drm_agp_unbind' drivers/gpu/drm/drm_agpsupport.c:318: warning: Function parameter or member 'dev' not described in 'drm_agp_bind' drivers/gpu/drm/drm_agpsupport.c:318: warning: Function parameter or member 'request' not described in 'drm_agp_bind' drivers/gpu/drm/drm_agpsupport.c:363: warning: Function parameter or member 'dev' not described in 'drm_agp_free' drivers/gpu/drm/drm_agpsupport.c:363: warning: Function parameter or member 'request' not described in 'drm_agp_free' drivers/gpu/drm/drm_agpsupport.c:404: warning: Function parameter or member 'dev' not described in 'drm_agp_init' Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Faith <faith@valinux.com> Cc: Gareth Hughes <gareth@valinux.com> 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/20210115181601.3432599-24-lee.jones@linaro.org
* drm: Inline AGP wrappers into their only callersThomas Zimmermann2021-01-131-6/+6
| | | | | | | | | | | | | | The AGP wrapper functions serve no purpose. They used to handle builds that have CONFIG_AGP unset. But their callers are all in drm_agpsupport.c, which only gets build with CONFIG_AGP. v2: * clarify CONFIG_AGP in commit description (Daniel) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-2-tzimmermann@suse.de
* drm: use DIV_ROUND_UP helper macro for calculationsWambui Karuga2019-11-041-2/+2
| | | | | | | | | | | | | | | | | | | | | Replace open coded divisor calculations with the DIV_ROUND_UP kernel macro for better readability. Issue found using coccinelle: @@ expression n,d; @@ ( - ((n + d - 1) / d) + DIV_ROUND_UP(n,d) | - ((n + (d - 1)) / d) + DIV_ROUND_UP(n,d) ) Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191025094907.3582-1-wambui.karugax@gmail.com
* gpu/drm: fix a few kernel-doc "/**" mark warningsQian Cai2019-07-161-1/+1
| | | | | | | | | | | | | The opening comment mark "/**" is reserved for kernel-doc comments, so it will generate warnings for comments that are not kernel-doc with "make W=1". For example, drivers/gpu/drm/drm_memory.c:2: warning: Cannot understand * \file drm_memory.c Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1563198173-7317-1-git-send-email-cai@lca.pw
* drm/agp: Remove unused function drm_agp_bind_pagesMaya Rashish2019-07-151-43/+0
| | | | | | | Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Maya Rashish <coypu@sdf.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190710161725.GA5042@SDF.ORG
* drm: drop use of drmP.h in drm/*Sam Ravnborg2019-05-271-2/+9
| | | | | | | | | | | | | | | | | | The use of the drmP.h header file is deprecated. Remove use from all files in drm/* so people do not look there and follow a bad example. Build tested allyesconfig,allmodconfig on x86, arm etc. Including alpha that is as always more challenging than the rest. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> 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> Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-8-sam@ravnborg.org
* drm: Trivial comment grammar cleanupsMatt Roper2019-02-041-1/+1
| | | | | | | | | | Most of these are just cases where code comments used contractions (it's, who's) where they actually mean to use a possessive pronoun (its, whose) or vice-versa. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190202012326.20096-1-matthew.d.roper@intel.com
* drm/agpsupport: Remove extra blank lineMeghana Madhyastha2017-09-201-1/+0
| | | | | | | | | Remove extra blank line to adhere to standard coding style. Found by checkpath.pl.. Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/9cfc7e7535908f3fe3b1df706f2999687c90d4e7.1505376068.git.meghana.madhyastha@gmail.com
* drm/agpsupport: Move EXPORT_SYMBOL so that it immediately follows its functionMeghana Madhyastha2017-09-201-3/+0
| | | | | | | | | | EXPORT_SYMBOL(foo) should immediately follow its function/variable. This coding style is preferred. Found by checkpath.pl. Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/0496f0e821082969ec7950ac35f1e6b6cedb22a6.1505376068.git.meghana.madhyastha@gmail.com
* drm/agpsupport: Remove assignment in if conditionMeghana Madhyastha2017-09-201-13/+18
| | | | | | | | | | | | Move the assignment so that it happens before the if condition. Merged multiple similar conditionals to a single conditional statement. This results in syntax which is easier to read. Found by checkpath.pl Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/d30cb59d92c8a98d0665ef6ae2a56b364dc61098.1505376068.git.meghana.madhyastha@gmail.com
* drm/agpsupport: Replace "foo * bar" with "foo *bar"Meghana Madhyastha2017-09-201-5/+5
| | | | | | | | | | This replaces all instances of foo * bar with foo *bar in drm_agpsupport.c. This is so that it adheres to standard C syntax for pointers. Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/e092694c26e61fc6147e44851392a43b7a68c4f3.1505376068.git.meghana.madhyastha@gmail.com
* drm/i810: drop device_is_agp callbackDaniel Vetter2017-01-261-0/+2
| | | | | | | | | | | | | Use the same trick we used for i915 when we still had ums support: Just initialize the agp support unconditionally in the driver load function. Unfortunately that means we need to export drm_agp_init again, but I think that's a lesser evil. Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170125062657.19270-9-daniel.vetter@ffwll.ch
* drm: Used DRM_LEGACY for all legacy functionsDaniel Vetter2016-08-081-4/+2
| | | | | | | | | | | | | | | | Except for nouveau, only legacy drivers need this really. And nouveau is already marked up with DRIVER_KMS_LEGACY_CONTEXT as the special case. I've tried to be careful to leave everything related to modeset still using the DRIVER_MODESET flag. Otherwise it's a direct replacement of !DRIVER_MODESET with DRIVER_LEGACY checks. Also helps readability since fewer negative checks overall. Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Frank Binns <frank.binns@imgtec.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1470251470-30830-2-git-send-email-daniel.vetter@ffwll.ch
* drm: Give drm_agp_clear drm_legacy_ prefixDaniel Vetter2016-04-271-2/+2
| | | | | | | | | | | | | It has a DRIVER_MODESET check to sure make it's not creating havoc for drm drivers. Make that clear in the name too. v2: Move misplaced hunk, spotted by 0day and Thierry. Cc: Thierry Reding <thierry.reding@gmail.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-2-git-send-email-daniel.vetter@ffwll.ch
* drm: Remove __OS_HAS_AGPDaniel Vetter2015-09-301-4/+0
| | | | | | | | | | | | | | | | | | | We already express the drm/agp depencies correctly in Kconfig, so we can rip this remnant from the shared drm core days. Aside: Pretty much all the #ifdefs in radeon/nouveau could be killed if ttm would provide dummy functions. I'm not going to volunteer for that though. v2: Use IS_ENABLED(CONFIG_AGP) as suggested by Ville v3: Polish from Ville's review. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> (v2) Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm: move AGP definitions harderDavid Herrmann2014-09-101-0/+1
| | | | | | | | | | | Move drm_agp_head to drm_agpsupport.h and drm_agp_mem into drm_legacy.h. Unfortunately, drivers still heavily access drm_agp_head so we cannot move it to drm_legacy.h. However, at least it's no longer visible in drmP.h now (it's directly included from it, though). Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: rip out DRM_AGP_MEM and DRM_AGP_KERNDaniel Vetter2013-12-181-4/+4
| | | | | | | | The <linux/agp_backend.h> header provides dummy functions and fallbacks, so no need for screaming macros. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/agpsupport: use kzalloc instead of kmalloc/memsetDave Airlie2013-12-181-5/+2
| | | | Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: inline drm_agp_destroyDaniel Vetter2013-12-181-15/+3
| | | | | | | | | | | | | | | Wrapping a kfree is pointless. v2: Add a comment to the kerneldoc for drm_agp_init to explain where the kfree happens as requested by David. Note that for modeset drivers agp cleanup is fairly complicated anyway: The drm_agp_clear is a noop and drivers must call drm_agp_release on their own. Which they all seem to do properly. Cc: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: rip out drm_core_has_AGPDaniel Vetter2013-12-181-1/+1
| | | | | | | | | | Most place actually want to just check for dev->agp (most do, but a few don't so this fixes a few potential NULL derefs). The only exception is the agp init code which should check for the AGP driver feature flag. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/agp: move AGP cleanup paths to drm_agpsupport.cDavid Herrmann2013-08-071-0/+51
| | | | | | | | | Introduce two new helpers, drm_agp_clear() and drm_agp_destroy() which clear all AGP mappings and destroy the AGP head. This allows to reduce the AGP code in core DRM and move it all to drm_agpsupport.c. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/David Howells2012-10-021-1/+1
| | | | | | | | | | | Convert #include "..." to #include <path/...> in drivers/gpu/. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* drm: kill drm_agp_chipset_flushDaniel Vetter2010-11-231-6/+0
| | | | | | | | No longer used. Cc: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
* drm: kill agp indirection messDaniel Vetter2010-08-301-36/+4
| | | | | | | | There's no point in jumping through two indirections. So kill one and call the kernels agp functions directly. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* agp: switch AGP to use page array instead of unsigned long arrayDave Airlie2009-06-191-1/+1
| | | | | | | | | This switches AGP to use an array of pages for tracking the pages allocated to the GART. This should enable GEM on PAE to work a lot better as we can pass highmem pages to the PAT code and it will do the right thing with them. Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: Remove memory debugging infrastructure.Eric Anholt2009-06-181-6/+6
| | | | | | | | It hasn't been used in ages, and having the user tell your how much memory is being freed at free time is a recipe for disaster even if it was ever used. Signed-off-by: Eric Anholt <eric@anholt.net>
* drm: stash AGP include under the do-we-have-AGP ifdefEric Anholt2009-01-221-1/+2
| | | | | | | | This fixes the MIPS with DRM build. Signed-off-by: Eric Anholt <eric@anholt.net> Tested-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* i915: Map status page cached for chips with GTT-based HWS location.Keith Packard2008-10-181-2/+3
| | | | | | | | | | | This should improve performance by avoiding uncached reads by the CPU (the point of having a status page), and may improve stability. This patch only affects G33, GM45 and G45 chips as those are the only ones using GTT-based HWS mappings. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: Add GEM ("graphics execution manager") to i915 driver.Eric Anholt2008-10-181-1/+50
| | | | | | | | | | | | | | | | GEM allows the creation of persistent buffer objects accessible by the graphics device through new ioctls for managing execution of commands on the device. The userland API is almost entirely driver-specific to ensure that any driver building on this model can easily map the interface to individual driver requirements. GEM is used by the 2d driver for managing its internal state allocations and will be used for pixmap storage to reduce memory consumption and enable zero-copy GLX_EXT_texture_from_pixmap, and in the 3d driver is used to enable GL_EXT_framebuffer_object and GL_ARB_pixel_buffer_object. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: reorganise drm tree to be more future proof.Dave Airlie2008-07-141-0/+455
With the coming of kernel based modesetting and the memory manager stuff, the everything in one directory approach was getting very ugly and starting to be unmanageable. This restructures the drm along the lines of other kernel components. It creates a drivers/gpu/drm directory and moves the hw drivers into subdirectores. It moves the includes into an include/drm, and sets up the unifdef for the userspace headers we should be exporting. Signed-off-by: Dave Airlie <airlied@redhat.com>
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