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path: root/drivers/gpu/drm/ttm/ttm_range_manager.c
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2025-06-16drm/ttm: Include <linux/export.h>Thomas Zimmermann1-0/+2
Fix the compile-time warnings drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/tests/ttm_mock_manager.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_agp_backend.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_backup.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_bo.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_bo_util.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_bo_vm.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_device.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_execbuf_util.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_pool.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_range_manager.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_resource.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/ttm/ttm_tt.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1") Reviewed-by: André Almeida <andrealmeid@igalia.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20250612121633.229222-10-tzimmermann@suse.de
2022-12-06drm/ttm: merge ttm_bo_api.h and ttm_bo_driver.h v2Christian König1-1/+1
Merge and cleanup the two headers into a single description of the object API. Also move all the documentation to the implementation and drop unnecessary includes from the header. No functional change. v2: minimal checkpatch.pl cleanup Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221125102137.1801-4-christian.koenig@amd.com
2022-10-27drm/ttm: rework on ttm_resource to use size_t typeSomalapuram Amaranath1-1/+1
Change ttm_resource structure from num_pages to size_t size in bytes. v1 -> v2: change PFN_UP(dst_mem->size) to ttm->num_pages v1 -> v2: change bo->resource->size to bo->base.size at some places v1 -> v2: remove the local variable v1 -> v2: cleanup cmp_size_smaller_first() v2 -> v3: adding missing PFN_UP in ttm_bo_vm_fault_reserved Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221027091237.983582-1-Amaranath.Somalapuram@amd.com Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com>
2022-10-16drm/ttm: Remove unnecessary drm_mm_cleanZeng Heng1-1/+0
Remove unnecessary `drm_mm_clean` calling in `ttm_range_man_fini_nocheck`, due to effective check is already included in the following `drm_mm_takedown`. Signed-off-by: Zeng Heng <zengheng4@huawei.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221012124735.1702700-1-zengheng4@huawei.com Signed-off-by: Christian König <christian.koenig@amd.com>
2022-08-22drm/ttm: Implement intersect/compatible functionsArunpravin Paneer Selvam1-0/+33
Implemented a new intersect and compatible callback functions to ttm range manager fetching start offset from drm mm range allocator. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220820073304.178444-2-Arunpravin.PaneerSelvam@amd.com
2022-03-21drm/ttm: Fix a kernel oops due to an invalid readZack Rusin1-1/+1
The res is initialized here only if there's no errors so passing it to ttm_resource_fini in the error paths results in a kernel oops. In the error paths, instead of the unitialized res, we have to use to use node->base on which ttm_resource_init was called. Sample affected backtrace: Unable to handle kernel NULL pointer dereference at virtual address 00000000000000d8 Mem abort info: ESR = 0x96000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000106ac0000 [00000000000000d8] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 96000004 [#1] SMP Modules linked in: bnep vsock_loopback vmw_vsock_virtio_transport_common vsock snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep > CPU: 0 PID: 1197 Comm: gnome-shell Tainted: G U 5.17.0-rc2-vmwgfx #2 Hardware name: VMware, Inc. VBSA/VBSA, BIOS VEFI 12/31/2020 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ttm_resource_fini+0x5c/0xac [ttm] lr : ttm_range_man_alloc+0x128/0x1e0 [ttm] sp : ffff80000d783510 x29: ffff80000d783510 x28: 0000000000000000 x27: ffff000086514400 x26: 0000000000000300 x25: ffff0000809f9e78 x24: 0000000000000000 x23: ffff80000d783680 x22: ffff000086514400 x21: 00000000ffffffe4 x20: ffff80000d7836a0 x19: ffff0000809f9e00 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000800 x12: ffff0000f2600a00 x11: 000000000000fc96 x10: 0000000000000000 x9 : ffff800001295c18 x8 : 0000000000000000 x7 : 0000000000000300 x6 : 0000000000000000 x5 : 0000000000000000 x4 : ffff0000f1034e20 x3 : ffff0000f1034600 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000600000 Call trace: ttm_resource_fini+0x5c/0xac [ttm] ttm_range_man_alloc+0x128/0x1e0 [ttm] ttm_resource_alloc+0x58/0x90 [ttm] ttm_bo_mem_space+0xc8/0x3e4 [ttm] ttm_bo_validate+0xb4/0x134 [ttm] vmw_bo_pin_in_start_of_vram+0xbc/0x200 [vmwgfx] vmw_framebuffer_pin+0xc0/0x154 [vmwgfx] vmw_ldu_primary_plane_atomic_update+0x8c/0x6e0 [vmwgfx] drm_atomic_helper_commit_planes+0x11c/0x2e0 drm_atomic_helper_commit_tail+0x60/0xb0 commit_tail+0x1b0/0x210 drm_atomic_helper_commit+0x168/0x400 drm_atomic_commit+0x64/0x74 drm_atomic_helper_set_config+0xdc/0x11c drm_mode_setcrtc+0x1c4/0x780 drm_ioctl_kernel+0xd0/0x1a0 drm_ioctl+0x2c4/0x690 vmw_generic_ioctl+0xe0/0x174 [vmwgfx] vmw_unlocked_ioctl+0x24/0x30 [vmwgfx] __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x78/0x100 el0_svc_common.constprop.0+0x54/0x184 do_el0_svc+0x34/0x9c el0_svc+0x48/0x1b0 el0t_64_sync_handler+0xa4/0x130 el0t_64_sync+0x1a4/0x1a8 Code: 35000260 f9401a81 52800002 f9403a60 (f9406c23) ---[ end trace 0000000000000000 ]--- Signed-off-by: Zack Rusin <zackr@vmware.com> Fixes: de3688e469b0 ("drm/ttm: add ttm_resource_fini v2") Cc: Christian König <christian.koenig@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220318174332.440068-6-zack@kde.org
2022-01-26drm/ttm: add back a reference to the bdev to the res managerChristian König1-1/+1
It is simply a lot cleaner to have this around instead of adding the device throughout the call chain. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220124122514.1832-3-christian.koenig@amd.com
2022-01-26drm/ttm: add ttm_resource_fini v2Christian König1-0/+2
Make sure we call the common cleanup function in all implementations of the resource manager. v2: fix missing case in i915, rudimentary kerneldoc, should be filled in more when we add more functionality Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220124122514.1832-2-christian.koenig@amd.com
2021-11-22drm: ttm: correct ttm_range_manager kernel-doc notationRandy Dunlap1-4/+7
Fix kernel-doc warnings in ttm_range_manager.c: drivers/gpu/drm/ttm/ttm_range_manager.c:144: warning: expecting prototype for ttm_range_man_init(). Prototype was for ttm_range_man_init_nocheck() instead drivers/gpu/drm/ttm/ttm_range_manager.c:178: warning: expecting prototype for ttm_range_man_fini(). Prototype was for ttm_range_man_fini_nocheck() instead Also fix subsequent warnings from scripts/kernel-doc. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Huang Rui <ray.huang@amd.com> Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20211121155453.29736-1-rdunlap@infradead.org Signed-off-by: Christian König <christian.koenig@amd.com>
2021-09-13drm/ttm: Try to check if new ttm man out of bounds during compilexinhui pan1-4/+4
Allow TTM know if vendor set new ttm mananger out of bounds by adding build_bug_on. Signed-off-by: xinhui pan <xinhui.pan@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210913080950.180752-1-xinhui.pan@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>
2021-07-14drm/ttm: add a check against null pointer dereferenceZheyu Ma1-0/+3
When calling ttm_range_man_fini(), 'man' may be uninitialized, which may cause a null pointer dereference bug. Fix this by checking if it is a null pointer. This log reveals it: [ 7.902580 ] BUG: kernel NULL pointer dereference, address: 0000000000000058 [ 7.905721 ] RIP: 0010:ttm_range_man_fini+0x40/0x160 [ 7.911826 ] Call Trace: [ 7.911826 ] radeon_ttm_fini+0x167/0x210 [ 7.911826 ] radeon_bo_fini+0x15/0x40 [ 7.913767 ] rs400_fini+0x55/0x80 [ 7.914358 ] radeon_device_fini+0x3c/0x140 [ 7.914358 ] radeon_driver_unload_kms+0x5c/0xe0 [ 7.914358 ] radeon_driver_load_kms+0x13a/0x200 [ 7.914358 ] ? radeon_driver_unload_kms+0xe0/0xe0 [ 7.914358 ] drm_dev_register+0x1db/0x290 [ 7.914358 ] radeon_pci_probe+0x16a/0x230 [ 7.914358 ] local_pci_probe+0x4a/0xb0 Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/1626274459-8148-1-git-send-email-zheyuma97@gmail.com Signed-off-by: Christian König <christian.koenig@amd.com>
2021-06-07drm/ttm: fix missing res assignment in ttm_range_man_allocChristian König1-4/+6
That somehow got missing. Signed-off-by: Christian König <christian.koenig@amd.com> Reported-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Fixes: cb1c81467af3 ("drm/ttm: flip the switch for driver allocated resources v2") Link: https://patchwork.freedesktop.org/patch/msgid/20210607104040.22017-1-christian.koenig@amd.com
2021-06-04drm/ttm: flip the switch for driver allocated resources v2Christian König1-15/+8
Instead of both driver and TTM allocating memory finalize embedding the ttm_resource object as base into the driver backends. v2: fix typo in vmwgfx grid mgr and double init in amdgpu_vram_mgr.c Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210602100914.46246-10-christian.koenig@amd.com
2021-06-04drm/ttm: flip over the range manager to self allocated nodesChristian König1-15/+41
Start with the range manager to make the resource object the base class for the allocated nodes. While at it cleanup a lot of the code around that. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210602100914.46246-2-christian.koenig@amd.com
2021-04-23drm/ttm: move the page_alignment into the BO v2Christian König1-3/+2
The alignment is a constant property and shouldn't change. v2: move documentation as well as suggested by Matthew. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210413135248.1266-4-christian.koenig@amd.com
2021-04-23drm/ttm: minor range manager coding style clean upsChristian König1-18/+17
No functional changes, just removing the leftovers from the redesign. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210413135248.1266-3-christian.koenig@amd.com
2021-01-21drm/ttm: device naming cleanupChristian König1-2/+2
Rename ttm_bo_device to ttm_device. Rename ttm_bo_driver to ttm_device_funcs. Rename ttm_bo_global to ttm_global. Move global and device related functions to ttm_device.[ch]. No functional change. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/415222/
2020-12-01drm/ttm/drivers: remove unecessary ttm_module.h include v2Christian König1-1/+0
ttm_module.h deals with internals of TTM and should never be include outside of it. v2: also move the file around Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/404885/
2020-11-17drm/ttm/ttm_range_manager: Demote non-conformant kernel-doc headerLee Jones1-1/+1
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/ttm/ttm_range_manager.c:46: warning: cannot understand function prototype: 'struct ttm_range_manager ' Reviewed-by: Christian König <christian.koenig@amd.com> Cc: Christian Koenig <christian.koenig@amd.com> Cc: Huang Rui <ray.huang@amd.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/20201116174112.1833368-34-lee.jones@linaro.org
2020-10-07drm/ttm: nuke ttm_bo_evict_mm and rename mgr function v3Christian König1-1/+1
Make it more clear what the resource manager function does and nuke the wrapper function. v2: nuke the wrapper v3: fix typo in radeon, rebased Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v2) Link: https://patchwork.freedesktop.org/patch/393914/
2020-09-15drm/ttm: remove available_cachingChristian König1-4/+1
Instead of letting TTM make an educated guess based on some mask all drivers should just specify what caching they want for their CPU mappings. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/390207/
2020-09-15drm/ttm: remove default cachingChristian König1-2/+0
As far as I can tell this was never used either and we just always fallback to the order cached > wc > uncached anyway. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/390142/
2020-08-12drm/ttm: rename ttm_resource_manager_func callbacksChristian König1-8/+8
The names get/put are associated with reference counting in the Linux kernel, use alloc/free instead. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/384340/?series=80346&rev=1
2020-08-06drm/ttm: rename ttm_mem_reg to ttm_resource.Dave Airlie1-2/+2
This name better reflects what the object does. I didn't rename all the pointers it seemed too messy. Signed-off-by: Dave Airlie <airlied@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-60-airlied@gmail.com
2020-08-06drm/ttm: rename ttm_mem_type_manager -> ttm_resource_manager.Dave Airlie1-14/+14
This name makes a lot more sense, since these are about managing driver resources rather than just memory ranges. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-59-airlied@gmail.com
2020-08-06drm/ttm: rename bo manager to range manager.Dave Airlie1-0/+187
The generic manager is called the range manager now, rename the file and some internals. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-58-airlied@gmail.com
generated by cgit v1.2.3 (git 2.39.0) at 2025-11-04 17:34:43 +0300