Merge branch 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux into drm-next
Some ttm/amd fixes.
* 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/powerplay: fix PSI feature on Polars12.
drm/amdgpu: refuse to reserve io mem for split VRAM buffers
drm/ttm: fix use-after-free races in vm fault handling
drm/amd/amdgpu: post card if there is real hw resetting performed
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e9af031..c1b9135 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1482,6 +1482,9 @@
spinlock_t gtt_list_lock;
struct list_head gtt_list;
+ /* record hw reset is performed */
+ bool has_hw_reset;
+
};
static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)
@@ -1700,7 +1703,7 @@
int amdgpu_gpu_reset(struct amdgpu_device *adev);
bool amdgpu_need_backup(struct amdgpu_device *adev);
void amdgpu_pci_config_reset(struct amdgpu_device *adev);
-bool amdgpu_card_posted(struct amdgpu_device *adev);
+bool amdgpu_need_post(struct amdgpu_device *adev);
void amdgpu_update_display_priority(struct amdgpu_device *adev);
int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index d9def01..821f7cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -100,7 +100,7 @@
resource_size_t size = 256 * 1024; /* ??? */
if (!(adev->flags & AMD_IS_APU))
- if (!amdgpu_card_posted(adev))
+ if (amdgpu_need_post(adev))
return false;
adev->bios = NULL;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 944ba0d..6abb238 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -619,25 +619,29 @@
* GPU helpers function.
*/
/**
- * amdgpu_card_posted - check if the hw has already been initialized
+ * amdgpu_need_post - check if the hw need post or not
*
* @adev: amdgpu_device pointer
*
- * Check if the asic has been initialized (all asics).
- * Used at driver startup.
- * Returns true if initialized or false if not.
+ * Check if the asic has been initialized (all asics) at driver startup
+ * or post is needed if hw reset is performed.
+ * Returns true if need or false if not.
*/
-bool amdgpu_card_posted(struct amdgpu_device *adev)
+bool amdgpu_need_post(struct amdgpu_device *adev)
{
uint32_t reg;
+ if (adev->has_hw_reset) {
+ adev->has_hw_reset = false;
+ return true;
+ }
/* then check MEM_SIZE, in case the crtcs are off */
reg = RREG32(mmCONFIG_MEMSIZE);
if (reg)
- return true;
+ return false;
- return false;
+ return true;
}
@@ -665,7 +669,7 @@
return true;
}
}
- return !amdgpu_card_posted(adev);
+ return amdgpu_need_post(adev);
}
/**
@@ -2071,7 +2075,7 @@
amdgpu_atombios_scratch_regs_restore(adev);
/* post card */
- if (!amdgpu_card_posted(adev) || !resume) {
+ if (amdgpu_need_post(adev)) {
r = amdgpu_atom_asic_init(adev->mode_info.atom_context);
if (r)
DRM_ERROR("amdgpu asic init failed\n");
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 1154b0a..4c6094e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -529,6 +529,9 @@
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)
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index 7c39b538..c4d4b35 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -1176,6 +1176,7 @@
if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) {
/* enable BM */
pci_set_master(adev->pdev);
+ adev->has_hw_reset = true;
r = 0;
break;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 4922fff..50bdb24 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -721,6 +721,7 @@
if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) {
/* enable BM */
pci_set_master(adev->pdev);
+ adev->has_hw_reset = true;
return 0;
}
udelay(1);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
index 4b0a94c..953e0c9 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
@@ -1396,3 +1396,25 @@
return 0;
}
+
+int atomctrl_get_svi2_info(struct pp_hwmgr *hwmgr, uint8_t voltage_type,
+ uint8_t *svd_gpio_id, uint8_t *svc_gpio_id,
+ uint16_t *load_line)
+{
+ ATOM_VOLTAGE_OBJECT_INFO_V3_1 *voltage_info =
+ (ATOM_VOLTAGE_OBJECT_INFO_V3_1 *)get_voltage_info_table(hwmgr->device);
+
+ const ATOM_VOLTAGE_OBJECT_V3 *voltage_object;
+
+ PP_ASSERT_WITH_CODE((NULL != voltage_info),
+ "Could not find Voltage Table in BIOS.", return -EINVAL);
+
+ voltage_object = atomctrl_lookup_voltage_type_v3
+ (voltage_info, voltage_type, VOLTAGE_OBJ_SVID2);
+
+ *svd_gpio_id = voltage_object->asSVID2Obj.ucSVDGpioId;
+ *svc_gpio_id = voltage_object->asSVID2Obj.ucSVCGpioId;
+ *load_line = voltage_object->asSVID2Obj.usLoadLine_PSI;
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
index fc898af..e9fe2e8 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
@@ -311,5 +311,8 @@
extern int atomctrl_get_avfs_information(struct pp_hwmgr *hwmgr, struct pp_atom_ctrl__avfs_parameters *param);
+extern int atomctrl_get_svi2_info(struct pp_hwmgr *hwmgr, uint8_t voltage_type,
+ uint8_t *svd_gpio_id, uint8_t *svc_gpio_id,
+ uint16_t *load_line);
#endif
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index b1de9e8..f75ee33 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -1383,6 +1383,15 @@
data->force_pcie_gen = PP_PCIEGenInvalid;
data->ulv_supported = hwmgr->feature_mask & PP_ULV_MASK ? true : false;
+ if (hwmgr->chip_id == CHIP_POLARIS12 || hwmgr->smumgr->is_kicker) {
+ uint8_t tmp1, tmp2;
+ uint16_t tmp3 = 0;
+ atomctrl_get_svi2_info(hwmgr, VOLTAGE_TYPE_VDDC, &tmp1, &tmp2,
+ &tmp3);
+ tmp3 = (tmp3 >> 5) & 0x3;
+ data->vddc_phase_shed_control = ((tmp3 << 1) | (tmp3 >> 1)) & 0x3;
+ }
+
data->fast_watermark_threshold = 100;
if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
VOLTAGE_TYPE_VDDC, VOLTAGE_OBJ_SVID2))
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.h b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.h
index 27e7f76..f221e17 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.h
@@ -268,7 +268,7 @@
uint32_t fast_watermark_threshold;
/* ---- Phase Shedding ---- */
- bool vddc_phase_shed_control;
+ uint8_t vddc_phase_shed_control;
/* ---- DI/DT ---- */
struct smu7_display_timing display_timing;
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
index c6c3c575..80e2329 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
@@ -503,7 +503,7 @@
state->VddcOffsetVid = (uint8_t)(table_info->us_ulv_voltage_offset *
VOLTAGE_VID_OFFSET_SCALE2 / VOLTAGE_VID_OFFSET_SCALE1);
- if (smumgr->is_kicker)
+ if (smumgr->chip_id == CHIP_POLARIS12 || smumgr->is_kicker)
state->VddcPhase = data->vddc_phase_shed_control ^ 0x3;
else
state->VddcPhase = (data->vddc_phase_shed_control) ? 0 : 1;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 68ef993..8816914 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -66,8 +66,11 @@
if (vmf->flags & FAULT_FLAG_RETRY_NOWAIT)
goto out_unlock;
+ ttm_bo_reference(bo);
up_read(&vma->vm_mm->mmap_sem);
(void) dma_fence_wait(bo->moving, true);
+ ttm_bo_unreserve(bo);
+ ttm_bo_unref(&bo);
goto out_unlock;
}
@@ -120,8 +123,10 @@
if (vmf->flags & FAULT_FLAG_ALLOW_RETRY) {
if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+ ttm_bo_reference(bo);
up_read(&vma->vm_mm->mmap_sem);
(void) ttm_bo_wait_unreserved(bo);
+ ttm_bo_unref(&bo);
}
return VM_FAULT_RETRY;
@@ -166,6 +171,13 @@
ret = ttm_bo_vm_fault_idle(bo, vma, vmf);
if (unlikely(ret != 0)) {
retval = ret;
+
+ if (retval == VM_FAULT_RETRY &&
+ !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+ /* The BO has already been unreserved. */
+ return retval;
+ }
+
goto out_unlock;
}
