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* drm: Mark AGP implementation and ioctls as legacyThomas Zimmermann2021-05-101-1/+0
| | | | | | | | | | | | | | | Only UMs drivers use DRM's core AGP code and ioctls. Mark the icotls as legacy. Add the _legacy_ infix to all AGP functions. Move the declarations to the public and internal legacy header files. The agp field in struct drm_device is now located in the structure's legacy section. Adapt drivers to the changes. AGP code now depends on CONFIG_DRM_LEGACY. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210507185709.22797-5-tzimmermann@suse.de
* drm: Implement drm_need_swiotlb() in drm_cache.cThomas Zimmermann2021-01-131-33/+0
| | | | | | | | | | The function is declared in drm_cache.h. I also removed the curly braces from the for loop to adhere to kernel coding style. 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/20210112081035.6882-3-tzimmermann@suse.de
* drm: Inline AGP wrappers into their only callersThomas Zimmermann2021-01-131-18/+0
| | | | | | | | | | | | | | 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: Include prototype for drm_need_swiotlb()Ville Syrjälä2019-09-301-0/+1
| | | | | | | | | | | Sparse is not happy: ../drivers/gpu/drm/drm_memory.c:159:6: warning: symbol 'drm_need_swiotlb' was not declared. Should it be static? Include the correct header for drm_need_swiotlb() prototype. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190710125143.9965-3-ville.syrjala@linux.intel.com Reviewed-by: Sean Paul <sean@poorly.run>
* 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: drop use of drmP.h in drm/*Sam Ravnborg2019-05-271-2/+7
| | | | | | | | | | | | | | | | | | 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: fallback to dma_alloc_coherent when memory encryption is activeChristian König2019-04-011-0/+7
| | | | | | | | | We can't just map any randome page we get when memory encryption is active. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.kernel.org/patch/10850833/
* drm: change func to better detect wether swiotlb is neededMichael D Labriola2019-02-201-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit fixes DRM failures on Xen PV systems that were introduced in v4.17 by the following commits: 82626363 drm: add func to get max iomem address v2 fd5fd480 drm/amdgpu: only enable swiotlb alloc when need v2 1bc3d3cc drm/radeon: only enable swiotlb path when need v2 The introduction of ->need_swiotlb to the ttm_dma_populate() conditionals in the radeon and amdgpu device drivers causes Gnome to immediately crash on Xen PV systems, returning the user to the login screen. The following kernel errors get logged: [ 28.554259] radeon_dp_aux_transfer_native: 200 callbacks suppressed [ 31.219821] radeon 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [ 31.220030] [drm:radeon_gem_object_create [radeon]] *ERROR* Failed to allocate GEM object (16384000, 2, 4096, -14) [ 31.226109] radeon 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [ 31.226300] [drm:radeon_gem_object_create [radeon]] *ERROR* Failed to allocate GEM object (16384000, 2, 4096, -14) [ 31.300734] gnome-shell[1935]: segfault at 88 ip 00007f39151cd904 sp 00007ffc97611ad8 error 4 in libmutter-cogl.so[7f3915178000+aa000] [ 31.300745] Code: 5f c3 0f 1f 40 00 48 8b 47 78 48 8b 40 40 ff e0 66 0f 1f 44 00 00 48 8b 47 78 48 8b 40 48 ff e0 66 0f 1f 44 00 00 48 8b 47 78 <48> 8b 80 88 00 00 00 ff e0 0f 1f 00 48 8b 47 78 48 8b 40 68 ff e0 [ 38.193302] radeon_dp_aux_transfer_native: 116 callbacks suppressed [ 40.009317] radeon 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [ 40.009488] [drm:radeon_gem_object_create [radeon]] *ERROR* Failed to allocate GEM object (16384000, 2, 4096, -14) [ 40.015114] radeon 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [ 40.015297] [drm:radeon_gem_object_create [radeon]] *ERROR* Failed to allocate GEM object (16384000, 2, 4096, -14) [ 40.028302] gnome-shell[2431]: segfault at 2dadf40 ip 0000000002dadf40 sp 00007ffcd24ea5f8 error 15 [ 40.028306] Code: 20 6e 31 00 00 00 00 00 00 00 00 37 e3 3d 2d 7f 00 00 80 f4 e6 3d 2d 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 c1 00 00 00 00 00 00 00 80 e1 d2 03 00 00 This commit renames drm_get_max_iomem() to drm_need_swiotlb(), adds a xen_pv_domain() check to it, and moves the bit shifting comparison that always follows its usage into the function (simplifying the drm driver code). Signed-off-by: Michael D Labriola <michael.d.labriola@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/286987/
* drm: Shift * to be adjacent to pointer nameMamta Shukla2018-10-161-5/+5
| | | | | | | | | | Shift * to be adjacent to pointer name to follow Linux coding style. Issue found with checkpatch.pl ERROR: "foo * bar" should be "foo *bar" Signed-off-by: Mamta Shukla <mamtashukla555@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20181015212644.GA28579@armorer
* treewide: Use array_size() in vmalloc()Kees Cook2018-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vmalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vmalloc(a * b) with: vmalloc(array_size(a, b)) as well as handling cases of: vmalloc(a * b * c) with: vmalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vmalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(u8) * COUNT + COUNT , ...) | vmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vmalloc( - sizeof(char) * COUNT + COUNT , ...) | vmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vmalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vmalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vmalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vmalloc(C1 * C2 * C3, ...) | vmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vmalloc(C1 * C2, ...) | vmalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
* drm: fix drm_get_max_iomem type mismatchArnd Bergmann2018-02-221-1/+1
| | | | | | | | | | | | | | | | When comparing two variables with min()/max(), they should be the same type: drivers/gpu/drm/drm_memory.c: In function 'drm_get_max_iomem': include/linux/kernel.h:821:16: error: comparison of distinct pointer types lacks a cast [-Werror] (void) (&max1 == &max2); This makes the local variable in drm_get_max_iomem make the type from resource->end. Fixes: 82626363a217 ("drm: add func to get max iomem address v2") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180222114804.1394300-1-arnd@arndb.de
* drm: add func to get max iomem address v2Chunming Zhou2018-02-131-0/+13
| | | | | | | | | | | | it will be used to check if the driver needs swiotlb v2: Don't use inline, instead, move function to drm_memory.c (Michel Daenzer <michel@daenzer.net>) Signed-off-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180209024410.1469-1-david1.zhou@amd.com
* drm: Fix broken use of _PAGE_NO_CACHE on powerpcBenjamin Herrenschmidt2016-07-121-1/+1
| | | | | | | | That constant isn't meant to be used outside of arch mm code Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1467018023.20278.65.camel@kernel.crashing.org
* drm: Remove __OS_HAS_AGPDaniel Vetter2015-09-301-3/+3
| | | | | | | | | | | | | | | | | | | 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 drm_memory.c map support declarations to <drm/drm_legacy.h>Daniel Vetter2014-09-121-6/+6
| | | | | | | | | | | And replace the drm_core_ prefix with drm_legacy_ since really, this isn't core stuff. Also drop drm_core_dropmap since it's unused. v2: Fix up i810.ko fully which somehow slipped through. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* drm: merge drm_memory.h into drm_memory.cDavid Herrmann2014-09-101-0/+11
| | | | | | | | | The drm_memory.h header is only used to define PAGE_AGP, which is only used in drm_memory.c. Fold the header into drm_memory.c and drop it. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* 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 Vetter2013-12-181-3/+3
| | | | | | | | 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: rip out drm_core_has_AGPDaniel Vetter2013-12-181-6/+3
| | | | | | | | | | 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/memory: don't export agp helpersDaniel Vetter2013-08-191-2/+0
| | | | | | | | | | | | | | They're only used by the agpgart support code in drm_agpgart.c, not by any drivers. I think long-term we should create a drm_internal.h include file with all the various functions only used by the drm core and not exported to drivers, and remove them from drmP.h. Oh, and someone should kill that upper-case P sometimes ;-) But that's all stuff for future patch bombs. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> 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: remove unused codeSascha Hauer2012-02-291-19/+0
| | | | | | | | remove declared but unused functions from drmP.h, fix the comments where necessary. Also, remove drm_mem_info which is unused. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* gpu: Add export.h as required to drivers/gpu files.Paul Gortmaker2011-11-011-0/+1
| | | | | | They need this to get all the EXPORT_SYMBOL variants and THIS_MODULE Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* drm: kill agp indirection messDaniel Vetter2010-08-301-9/+3
| | | | | | | | 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>
* drm: drop return value of drm_free_agpDaniel Vetter2010-08-301-2/+2
| | | | | | | No caller (rightly) cares about it, so drop it. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drivers/gpu/drm/drm_memory.c: fix check for end of loopDan Carpenter2010-04-281-1/+1
| | | | | | | | | "agpmem" is never NULL here. Signed-off-by: Dan Carpenter <error27@gmail.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
* agp: switch AGP to use page array instead of unsigned long arrayDave Airlie2009-06-191-4/+4
| | | | | | | | | 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 Anholt2009-06-181-25/+0
| | | | | | | | 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: Split drm_map and drm_local_mapBenjamin Herrenschmidt2009-03-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Once upon a time, the DRM made the distinction between the drm_map data structure exchanged with user space and the drm_local_map used in the kernel. For some reasons, while the BSD port still has that "feature", the linux part abused drm_map for kernel internal usage as the local map only existed as a typedef of the struct drm_map. This patch fixes it by declaring struct drm_local_map separately (though its content is currently identical to the userspace variant), and changing the kernel code to only use that, except when it's a user<->kernel interface (ie. ioctl). This allows subsequent changes to the in-kernel format I've also replaced the use of drm_local_map_t with struct drm_local_map in a couple of places. Mostly by accident but they are the same (the former is a typedef of the later) and I have some remote plans and half finished patch to completely kill the drm_local_map_t typedef so I left those bits in. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@linux.ie>
* drm/radeon: fix ioremap conflict with AGP mappingsDave Airlie2009-02-081-1/+6
| | | | | | | | this solves a regression from http://bugzilla.kernel.org/show_bug.cgi?id=12441 Reported-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: Add GEM ("graphics execution manager") to i915 driver.Eric Anholt2008-10-171-0/+2
| | | | | | | | | | | | | | | | 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/radeon: fixup issue with radeon and PAT support.Dave Airlie2008-07-151-0/+5
| | | | | | | With new userspace libpciaccess we can get a conflicting mapping on the PCIE GART table in the video RAM. Always try and map it _wc. Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: reorganise drm tree to be more future proof.Dave Airlie2008-07-141-0/+181
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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