Re: [PATCH 01/10] drm/ttm: Remove TTM_HAS_AGP

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Hi Daniel,

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.6-rc1 next-20160330]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Daniel-Vetter/Another-shot-at-cruft-removal/20160330-174803
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: i386-allmodconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   drivers/gpu/drm/nouveau/nouveau_bo.c: In function 'nouveau_ttm_tt_create':
>> drivers/gpu/drm/nouveau/nouveau_bo.c:581:10: error: implicit declaration of function 'ttm_agp_tt_create' [-Werror=implicit-function-declaration]
      return ttm_agp_tt_create(bdev, drm->agp.bridge, size,
             ^
>> drivers/gpu/drm/nouveau/nouveau_bo.c:581:10: warning: return makes pointer from integer without a cast [-Wint-conversion]
   drivers/gpu/drm/nouveau/nouveau_bo.c: In function 'nouveau_ttm_tt_populate':
>> drivers/gpu/drm/nouveau/nouveau_bo.c:1501:10: error: implicit declaration of function 'ttm_agp_tt_populate' [-Werror=implicit-function-declaration]
      return ttm_agp_tt_populate(ttm);
             ^
   drivers/gpu/drm/nouveau/nouveau_bo.c: In function 'nouveau_ttm_tt_unpopulate':
>> drivers/gpu/drm/nouveau/nouveau_bo.c:1568:3: error: implicit declaration of function 'ttm_agp_tt_unpopulate' [-Werror=implicit-function-declaration]
      ttm_agp_tt_unpopulate(ttm);
      ^
   cc1: some warnings being treated as errors
--
   drivers/gpu/drm/radeon/radeon_ttm.c: In function 'radeon_ttm_tt_create':
>> drivers/gpu/drm/radeon/radeon_ttm.c:685:10: error: implicit declaration of function 'ttm_agp_tt_create' [-Werror=implicit-function-declaration]
      return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge,
             ^
>> drivers/gpu/drm/radeon/radeon_ttm.c:685:10: warning: return makes pointer from integer without a cast [-Wint-conversion]
   drivers/gpu/drm/radeon/radeon_ttm.c: In function 'radeon_ttm_tt_populate':
>> drivers/gpu/drm/radeon/radeon_ttm.c:741:10: error: implicit declaration of function 'ttm_agp_tt_populate' [-Werror=implicit-function-declaration]
      return ttm_agp_tt_populate(ttm);
             ^
   drivers/gpu/drm/radeon/radeon_ttm.c: In function 'radeon_ttm_tt_unpopulate':
>> drivers/gpu/drm/radeon/radeon_ttm.c:792:3: error: implicit declaration of function 'ttm_agp_tt_unpopulate' [-Werror=implicit-function-declaration]
      ttm_agp_tt_unpopulate(ttm);
      ^
   cc1: some warnings being treated as errors

vim +/ttm_agp_tt_unpopulate +1568 drivers/gpu/drm/nouveau/nouveau_bo.c

26c9e8eff Ben Skeggs            2015-08-20  1495  	if (!nvxx_device(&drm->device)->func->cpu_coherent &&
c3a0c771e Alexandre Courbot     2014-10-27  1496  	    ttm->caching_state == tt_uncached)
c3a0c771e Alexandre Courbot     2014-10-27  1497  		return ttm_dma_populate(ttm_dma, dev->dev);
c3a0c771e Alexandre Courbot     2014-10-27  1498  
a7fb8a23c Daniel Vetter         2015-09-09  1499  #if IS_ENABLED(CONFIG_AGP)
340b0e7c5 Ben Skeggs            2015-08-20  1500  	if (drm->agp.bridge) {
dea7e0ac4 Jerome Glisse         2012-01-03 @1501  		return ttm_agp_tt_populate(ttm);
dea7e0ac4 Jerome Glisse         2012-01-03  1502  	}
dea7e0ac4 Jerome Glisse         2012-01-03  1503  #endif
dea7e0ac4 Jerome Glisse         2012-01-03  1504  
9bcd38de5 Alexandre Courbot     2016-03-02  1505  #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1506  	if (swiotlb_nr_tbl()) {
8e7e70522 Jerome Glisse         2011-11-09  1507  		return ttm_dma_populate((void *)ttm, dev->dev);
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1508  	}
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1509  #endif
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1510  
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1511  	r = ttm_pool_populate(ttm);
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1512  	if (r) {
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1513  		return r;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1514  	}
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1515  
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1516  	for (i = 0; i < ttm->num_pages; i++) {
fd1496a0f Alexandre Courbot     2014-07-31  1517  		dma_addr_t addr;
fd1496a0f Alexandre Courbot     2014-07-31  1518  
fd1496a0f Alexandre Courbot     2014-07-31  1519  		addr = dma_map_page(pdev, ttm->pages[i], 0, PAGE_SIZE,
fd1496a0f Alexandre Courbot     2014-07-31  1520  				    DMA_BIDIRECTIONAL);
fd1496a0f Alexandre Courbot     2014-07-31  1521  
fd1496a0f Alexandre Courbot     2014-07-31  1522  		if (dma_mapping_error(pdev, addr)) {
4fbbed46d Rasmus Villemoes      2016-02-15  1523  			while (i--) {
fd1496a0f Alexandre Courbot     2014-07-31  1524  				dma_unmap_page(pdev, ttm_dma->dma_address[i],
fd1496a0f Alexandre Courbot     2014-07-31  1525  					       PAGE_SIZE, DMA_BIDIRECTIONAL);
8e7e70522 Jerome Glisse         2011-11-09  1526  				ttm_dma->dma_address[i] = 0;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1527  			}
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1528  			ttm_pool_unpopulate(ttm);
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1529  			return -EFAULT;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1530  		}
fd1496a0f Alexandre Courbot     2014-07-31  1531  
fd1496a0f Alexandre Courbot     2014-07-31  1532  		ttm_dma->dma_address[i] = addr;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1533  	}
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1534  	return 0;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1535  }
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1536  
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1537  static void
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1538  nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1539  {
8e7e70522 Jerome Glisse         2011-11-09  1540  	struct ttm_dma_tt *ttm_dma = (void *)ttm;
ebb945a94 Ben Skeggs            2012-07-20  1541  	struct nouveau_drm *drm;
be83cd4ef Ben Skeggs            2015-01-14  1542  	struct nvkm_device *device;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1543  	struct drm_device *dev;
fd1496a0f Alexandre Courbot     2014-07-31  1544  	struct device *pdev;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1545  	unsigned i;
22b33e8ed Dave Airlie           2012-04-02  1546  	bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
22b33e8ed Dave Airlie           2012-04-02  1547  
22b33e8ed Dave Airlie           2012-04-02  1548  	if (slave)
22b33e8ed Dave Airlie           2012-04-02  1549  		return;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1550  
ebb945a94 Ben Skeggs            2012-07-20  1551  	drm = nouveau_bdev(ttm->bdev);
989aa5b76 Ben Skeggs            2015-01-12  1552  	device = nvxx_device(&drm->device);
ebb945a94 Ben Skeggs            2012-07-20  1553  	dev = drm->dev;
26c9e8eff Ben Skeggs            2015-08-20  1554  	pdev = device->dev;
3230cfc34 Konrad Rzeszutek Wilk 2011-10-17  1555  
c3a0c771e Alexandre Courbot     2014-10-27  1556  	/*
c3a0c771e Alexandre Courbot     2014-10-27  1557  	 * Objects matching this condition have been marked as force_coherent,
c3a0c771e Alexandre Courbot     2014-10-27  1558  	 * so use the DMA API for them.
c3a0c771e Alexandre Courbot     2014-10-27  1559  	 */
26c9e8eff Ben Skeggs            2015-08-20  1560  	if (!nvxx_device(&drm->device)->func->cpu_coherent &&
dcccdc143 Alexandre Courbot     2014-12-11  1561  	    ttm->caching_state == tt_uncached) {
c3a0c771e Alexandre Courbot     2014-10-27  1562  		ttm_dma_unpopulate(ttm_dma, dev->dev);
dcccdc143 Alexandre Courbot     2014-12-11  1563  		return;
dcccdc143 Alexandre Courbot     2014-12-11  1564  	}
c3a0c771e Alexandre Courbot     2014-10-27  1565  
a7fb8a23c Daniel Vetter         2015-09-09  1566  #if IS_ENABLED(CONFIG_AGP)
340b0e7c5 Ben Skeggs            2015-08-20  1567  	if (drm->agp.bridge) {
dea7e0ac4 Jerome Glisse         2012-01-03 @1568  		ttm_agp_tt_unpopulate(ttm);
dea7e0ac4 Jerome Glisse         2012-01-03  1569  		return;
dea7e0ac4 Jerome Glisse         2012-01-03  1570  	}
dea7e0ac4 Jerome Glisse         2012-01-03  1571  #endif

:::::: The code at line 1568 was first introduced by commit
:::::: dea7e0ac45fd28f90bbc38ff226d36a9f788efbf ttm: fix agp since ttm tt rework

:::::: TO: Jerome Glisse <jglisse@xxxxxxxxxx>
:::::: CC: Dave Airlie <airlied@xxxxxxxxxx>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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