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authorDave Airlie <airlied@redhat.com>2017-04-07 05:41:42 +1000
committerDave Airlie <airlied@redhat.com>2017-04-07 05:49:12 +1000
commit0168778115687486575a6831df865dbc4f5369fe (patch)
tree29a3f1e3348f1ddbc9924611fa0cad738507ba64 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
parentaed93ee7d03eac9b7d21f08aebe8a7d9ea069e20 (diff)
parentf4e7c7c1b4ed4c28caf679bc94ca5aa096310c10 (diff)
Merge branch 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux into drm-next
A few more things for 4.12: - ttm and amdgpu support for non-contiguous vram CPU mappings - lots of bug fixes and cleanups for vega10 - misc bug fixes and code cleanups [airlied: fix do_div error on 32-bit arm, not sure it's 100% correct] * 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux: (58 commits) drm/amdgpu: use uintptr_t instead of unsigned long to store pointer drm/amdgpu: Avoid using signed integer to store pointer value drm/amdgpu:invoke new implemented AI MB func drm/amdgpu/vega10:timeout set to equal with VI drm/amdgpu:implement the reset MB func for vega10 drm/amdgpu:fix typo for mxgpu_ai drm/amdgpu:no need to involv HDP in KIQ drm/amdgpu:add PSP block only load_type=PSP (v2) drm/amdgpu/smu9: update to latest driver interface drm/amd/amdgpu: cleanup gfx_v9_0_gpu_init() drm/amd/amdgpu: cleanup gfx_v9_0_rlc_reset() drm/amd/amdgpu: cleanup gfx_v9_0_rlc_start() drm/amd/amdgpu: simplify gfx_v9_0_cp_gfx_enable() drm/amd/amdgpu: cleanup gfx_v9_0_kiq_init_register() drm/amd/amdgpu: Drop gfx_v9_0_print_status() drm/amd/amdgpu: cleanup gfx_v9_0_set_gfx_eop_interrupt_state() drm/amd/amdgpu: cleanup gfx_v9_0_set_priv_reg_fault_state() drm/amd/amdgpu: cleanup gfx_v9_0_set_priv_inst_fault_state() drm/amd/amdgpu: cleanup gfx_v9_0_init_queue() drm/amdgpu: Move function amdgpu_has_atpx near other similar functions ...
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c40
1 files changed, 12 insertions, 28 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 244bb9aacf86..7e993259c2e9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -529,40 +529,12 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
case TTM_PL_TT:
break;
case TTM_PL_VRAM:
- if (mem->start == AMDGPU_BO_INVALID_OFFSET)
- return -EINVAL;
-
mem->bus.offset = mem->start << PAGE_SHIFT;
/* check if it's visible */
if ((mem->bus.offset + mem->bus.size) > adev->mc.visible_vram_size)
return -EINVAL;
mem->bus.base = adev->mc.aper_base;
mem->bus.is_iomem = true;
-#ifdef __alpha__
- /*
- * Alpha: use bus.addr to hold the ioremap() return,
- * so we can modify bus.base below.
- */
- if (mem->placement & TTM_PL_FLAG_WC)
- mem->bus.addr =
- ioremap_wc(mem->bus.base + mem->bus.offset,
- mem->bus.size);
- else
- mem->bus.addr =
- ioremap_nocache(mem->bus.base + mem->bus.offset,
- mem->bus.size);
- if (!mem->bus.addr)
- return -ENOMEM;
-
- /*
- * Alpha: Use just the bus offset plus
- * the hose/domain memory base for bus.base.
- * It then can be used to build PTEs for VRAM
- * access, as done in ttm_bo_vm_fault().
- */
- mem->bus.base = (mem->bus.base & 0x0ffffffffUL) +
- adev->ddev->hose->dense_mem_base;
-#endif
break;
default:
return -EINVAL;
@@ -574,6 +546,17 @@ static void amdgpu_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_re
{
}
+static unsigned long amdgpu_ttm_io_mem_pfn(struct ttm_buffer_object *bo,
+ unsigned long page_offset)
+{
+ struct drm_mm_node *mm = bo->mem.mm_node;
+ uint64_t size = mm->size;
+ uint64_t offset = page_offset;
+
+ page_offset = do_div(offset, size);
+ return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start + page_offset;
+}
+
/*
* TTM backend functions.
*/
@@ -1089,6 +1072,7 @@ static struct ttm_bo_driver amdgpu_bo_driver = {
.fault_reserve_notify = &amdgpu_bo_fault_reserve_notify,
.io_mem_reserve = &amdgpu_ttm_io_mem_reserve,
.io_mem_free = &amdgpu_ttm_io_mem_free,
+ .io_mem_pfn = amdgpu_ttm_io_mem_pfn,
};
int amdgpu_ttm_init(struct amdgpu_device *adev)