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Searched refs:dummy_page (Results 1 – 20 of 20) sorted by relevance

/linux/drivers/staging/media/ipu3/
H A Dipu3-mmu.c54 void *dummy_page; member
447 mmu->dummy_page = (void *)__get_free_page(GFP_KERNEL); in imgu_mmu_init()
448 if (!mmu->dummy_page) in imgu_mmu_init()
450 pteval = IPU3_ADDR2PTE(virt_to_phys(mmu->dummy_page)); in imgu_mmu_init()
491 free_page((unsigned long)mmu->dummy_page); in imgu_mmu_init()
514 free_page((unsigned long)mmu->dummy_page); in imgu_mmu_exit()
/linux/drivers/gpu/drm/radeon/
H A Dradeon_device.c784 if (rdev->dummy_page.page) in radeon_dummy_page_init()
786 rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO); in radeon_dummy_page_init()
787 if (rdev->dummy_page.page == NULL) in radeon_dummy_page_init()
789 rdev->dummy_page.addr = dma_map_page(&rdev->pdev->dev, rdev->dummy_page.page, in radeon_dummy_page_init()
791 if (dma_mapping_error(&rdev->pdev->dev, rdev->dummy_page.addr)) { in radeon_dummy_page_init()
793 __free_page(rdev->dummy_page.page); in radeon_dummy_page_init()
794 rdev->dummy_page.page = NULL; in radeon_dummy_page_init()
797 rdev->dummy_page.entry = radeon_gart_get_page_entry(rdev->dummy_page.addr, in radeon_dummy_page_init()
811 if (rdev->dummy_page.page == NULL) in radeon_dummy_page_fini()
813 dma_unmap_page(&rdev->pdev->dev, rdev->dummy_page.addr, PAGE_SIZE, in radeon_dummy_page_fini()
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H A Dradeon_gart.c257 rdev->gart.pages_entry[t] = rdev->dummy_page.entry; in radeon_gart_unbind()
260 rdev->dummy_page.entry); in radeon_gart_unbind()
302 rdev->dummy_page.page; in radeon_gart_bind()
363 rdev->gart.pages_entry[i] = rdev->dummy_page.entry; in radeon_gart_init()
H A Dni.c1283 (u32)(rdev->dummy_page.addr >> 12)); in cayman_pcie_gart_enable()
1307 (u32)(rdev->dummy_page.addr >> 12)); in cayman_pcie_gart_enable()
H A Drv770.c932 (u32)(rdev->dummy_page.addr >> 12)); in rv770_pcie_gart_enable()
H A Dsi.c4300 (u32)(rdev->dummy_page.addr >> 12)); in si_pcie_gart_enable()
4328 (u32)(rdev->dummy_page.addr >> 12)); in si_pcie_gart_enable()
5981 WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8); in si_irq_init()
H A Dr600.c1174 (u32)(rdev->dummy_page.addr >> 12)); in r600_pcie_gart_enable()
3697 WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8); in r600_irq_init()
H A Dcik.c5454 (u32)(rdev->dummy_page.addr >> 12)); in cik_pcie_gart_enable()
5478 (u32)(rdev->dummy_page.addr >> 12)); in cik_pcie_gart_enable()
6958 WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8); in cik_irq_init()
H A Dradeon.h2382 struct radeon_dummy_page dummy_page; member
H A Devergreen.c2447 (u32)(rdev->dummy_page.addr >> 12)); in evergreen_pcie_gart_enable()
/linux/arch/sparc/kernel/
H A Diommu.c127 iommu->dummy_page = (unsigned long) page_address(page); in iommu_table_init()
128 memset((void *)iommu->dummy_page, 0, PAGE_SIZE); in iommu_table_init()
129 iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page); in iommu_table_init()
146 free_page(iommu->dummy_page); in iommu_table_init()
147 iommu->dummy_page = 0UL; in iommu_table_init()
/linux/sound/drivers/
H A Ddummy.c596 static void *dummy_page[2]; variable
603 if (dummy_page[i]) { in free_fake_buffer()
604 free_page((unsigned long)dummy_page[i]); in free_fake_buffer()
605 dummy_page[i] = NULL; in free_fake_buffer()
617 dummy_page[i] = (void *)get_zeroed_page(GFP_KERNEL); in alloc_fake_buffer()
618 if (!dummy_page[i]) { in alloc_fake_buffer()
643 return virt_to_page(dummy_page[substream->stream]); /* the same page */ in dummy_pcm_page()
/linux/arch/sparc/include/asm/
H A Diommu_64.h68 unsigned long dummy_page; member
/linux/drivers/gpu/drm/gma500/
H A Dmmu.h49 struct page *dummy_page; member
/linux/drivers/gpu/drm/ttm/
H A Dttm_bo_vm.c286 struct page *dummy_page = (struct page *)res; in ttm_bo_release_dummy_page() local
288 __free_page(dummy_page); in ttm_bo_release_dummy_page()
/linux/drivers/gpu/drm/omapdrm/
H A Domap_dmm_priv.h158 struct page *dummy_page; member
H A Domap_dmm_tiler.c756 if (omap_dmm->dummy_page) in omap_dmm_remove()
757 __free_page(omap_dmm->dummy_page); in omap_dmm_remove()
861 omap_dmm->dummy_page = alloc_page(GFP_KERNEL | __GFP_DMA32); in omap_dmm_probe()
862 if (!omap_dmm->dummy_page) { in omap_dmm_probe()
873 omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page); in omap_dmm_probe()
/linux/drivers/media/pci/intel/ipu3/
H A Dipu3-cio2.c121 if (cio2->dummy_page) { in cio2_fbpt_exit_dummy()
122 dma_free_coherent(dev, PAGE_SIZE, cio2->dummy_page, in cio2_fbpt_exit_dummy()
124 cio2->dummy_page = NULL; in cio2_fbpt_exit_dummy()
133 cio2->dummy_page = dma_alloc_coherent(dev, PAGE_SIZE, in cio2_fbpt_init_dummy()
139 if (!cio2->dummy_page || !cio2->dummy_lop) { in cio2_fbpt_init_dummy()
H A Dipu3-cio2.h391 void *dummy_page; member
/linux/drivers/media/pci/intel/ipu6/
H A Dipu6-mmu.c155 mmu_info->dummy_page = pt; in get_dummy_page()
170 free_page((unsigned long)mmu_info->dummy_page); in free_dummy_page()