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drm/amdgpu: use the TTM dummy page instead of allocating one 

We have a global dummy page in TTM, use that one instead of allocating a
new one.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-02-22 08:35:11 +01:00 committed by Alex Deucher
parent a02497b732
commit 92e71b0676
13 changed files with 30 additions and 41 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -343,14 +343,6 @@ struct amdgpu_ih_funcs {
bool amdgpu_get_bios(struct amdgpu_device *adev);
bool amdgpu_read_bios(struct amdgpu_device *adev);
/*
* Dummy page
*/
struct amdgpu_dummy_page {
struct page *page;
dma_addr_t addr;
};
/*
* Clocks
*/
@ -1505,7 +1497,7 @@ struct amdgpu_device {
/* MC */
struct amdgpu_gmc gmc;
struct amdgpu_gart gart;
struct amdgpu_dummy_page dummy_page;
dma_addr_t dummy_page_addr;
struct amdgpu_vm_manager vm_manager;
struct amdgpu_vmhub vmhub[AMDGPU_MAX_VMHUBS];

29
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
View File

@ -68,17 +68,15 @@
*/
static int amdgpu_gart_dummy_page_init(struct amdgpu_device *adev)
{
if (adev->dummy_page.page)
struct page *dummy_page = adev->mman.bdev.glob->dummy_read_page;
if (adev->dummy_page_addr)
return 0;
adev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
if (adev->dummy_page.page == NULL)
return -ENOMEM;
adev->dummy_page.addr = pci_map_page(adev->pdev, adev->dummy_page.page,
0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
if (pci_dma_mapping_error(adev->pdev, adev->dummy_page.addr)) {
adev->dummy_page_addr = pci_map_page(adev->pdev, dummy_page, 0,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
if (pci_dma_mapping_error(adev->pdev, adev->dummy_page_addr)) {
dev_err(&adev->pdev->dev, "Failed to DMA MAP the dummy page\n");
__free_page(adev->dummy_page.page);
adev->dummy_page.page = NULL;
adev->dummy_page_addr = 0;
return -ENOMEM;
}
return 0;
@ -93,12 +91,11 @@ static int amdgpu_gart_dummy_page_init(struct amdgpu_device *adev)
*/
static void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev)
{
if (adev->dummy_page.page == NULL)
if (!adev->dummy_page_addr)
return;
pci_unmap_page(adev->pdev, adev->dummy_page.addr,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
__free_page(adev->dummy_page.page);
adev->dummy_page.page = NULL;
pci_unmap_page(adev->pdev, adev->dummy_page_addr,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
adev->dummy_page_addr = 0;
}
/**
@ -236,7 +233,7 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS
adev->gart.pages[p] = NULL;
#endif
page_base = adev->dummy_page.addr;
page_base = adev->dummy_page_addr;
if (!adev->gart.ptr)
continue;
@ -347,7 +344,7 @@ int amdgpu_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->dummy_page.page)
if (adev->dummy_page_addr)
return 0;
/* We need PAGE_SIZE >= AMDGPU_GPU_PAGE_SIZE */

2
drivers/gpu/drm/amd/amdgpu/cik_ih.c
View File

@ -111,7 +111,7 @@ static int cik_ih_irq_init(struct amdgpu_device *adev)
cik_ih_disable_interrupts(adev);
/* setup interrupt control */
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32(mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN

2
drivers/gpu/drm/amd/amdgpu/cz_ih.c
View File

@ -111,7 +111,7 @@ static int cz_ih_irq_init(struct amdgpu_device *adev)
cz_ih_disable_interrupts(adev);
/* setup interrupt control */
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32(mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN

4
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
View File

@ -92,9 +92,9 @@ static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
/* Program "protection fault". */
WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
(u32)((u64)adev->dummy_page.addr >> 44));
(u32)((u64)adev->dummy_page_addr >> 44));
WREG32_FIELD15(GC, 0, VM_L2_PROTECTION_FAULT_CNTL2,
ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);

4
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
View File

@ -533,7 +533,7 @@ static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT0_CNTL2, 0);
WREG32(mmVM_CONTEXT0_CNTL,
VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
@ -563,7 +563,7 @@ static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
/* enable context1-15 */
WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT1_CNTL2, 4);
WREG32(mmVM_CONTEXT1_CNTL,
VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |

4
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
View File

@ -644,7 +644,7 @@ static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT0_CNTL2, 0);
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
@ -674,7 +674,7 @@ static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
/* enable context1-15 */
WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT1_CNTL2, 4);
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);

4
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
View File

@ -860,7 +860,7 @@ static int gmc_v8_0_gart_enable(struct amdgpu_device *adev)
WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT0_CNTL2, 0);
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
@ -890,7 +890,7 @@ static int gmc_v8_0_gart_enable(struct amdgpu_device *adev)
/* enable context1-15 */
WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT1_CNTL2, 4);
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);

2
drivers/gpu/drm/amd/amdgpu/iceland_ih.c
View File

@ -111,7 +111,7 @@ static int iceland_ih_irq_init(struct amdgpu_device *adev)
iceland_ih_disable_interrupts(adev);
/* setup interrupt control */
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32(mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN

4
drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
View File

@ -103,9 +103,9 @@ static void mmhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
/* Program "protection fault". */
WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
(u32)(adev->dummy_page.addr >> 12));
(u32)(adev->dummy_page_addr >> 12));
WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
(u32)((u64)adev->dummy_page.addr >> 44));
(u32)((u64)adev->dummy_page_addr >> 44));
tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2);
tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL2,

2
drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
View File

@ -133,7 +133,7 @@ static void nbio_v6_1_ih_control(struct amdgpu_device *adev)
u32 interrupt_cntl;
/* setup interrupt control */
WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN

2
drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
View File

@ -208,7 +208,7 @@ static void nbio_v7_0_ih_control(struct amdgpu_device *adev)
u32 interrupt_cntl;
/* setup interrupt control */
WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN

2
drivers/gpu/drm/amd/amdgpu/tonga_ih.c
View File

@ -107,7 +107,7 @@ static int tonga_ih_irq_init(struct amdgpu_device *adev)
tonga_ih_disable_interrupts(adev);
/* setup interrupt control */
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32(mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN