diff mbox

[13/14] drm/radeon: allow to force hard GPU reset.

Message ID 1458316719-30104-14-git-send-email-jglisse@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jerome Glisse March 18, 2016, 3:58 p.m. UTC 
From: Jérome Glisse <jglisse@redhat.com>

In some cases, like when freezing for hibernation, we need to be
able to force hard reset even if no engine are stuck. This patch
add a bool option to current asic reset callback to allow to force
hard reset on asic that supports it.

Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/radeon/cik.c         |  8 +++++++-
 drivers/gpu/drm/radeon/evergreen.c   |  7 ++++++-
 drivers/gpu/drm/radeon/ni.c          |  7 ++++++-
 drivers/gpu/drm/radeon/r100.c        |  2 +-
 drivers/gpu/drm/radeon/r300.c        |  2 +-
 drivers/gpu/drm/radeon/r600.c        |  7 ++++++-
 drivers/gpu/drm/radeon/radeon.h      |  4 ++--
 drivers/gpu/drm/radeon/radeon_asic.h | 16 ++++++++--------
 drivers/gpu/drm/radeon/rs600.c       |  2 +-
 drivers/gpu/drm/radeon/si.c          |  7 ++++++-
 10 files changed, 44 insertions(+), 18 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index b5bc9cf..7ee9304 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -5620,15 +5620,21 @@  static void cik_gpu_pci_config_reset(struct radeon_device *rdev)
  * cik_asic_reset - soft reset GPU
  *
  * @rdev: radeon_device pointer
+ * @hard: force hard reset
  *
  * Look up which blocks are hung and attempt
  * to reset them.
  * Returns 0 for success.
  */
-int cik_asic_reset(struct radeon_device *rdev)
+int cik_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	u32 reset_mask;
 
+	if (hard) {
+		cik_gpu_pci_config_reset(rdev);
+		return 0;
+	}
+
 	reset_mask = cik_gpu_check_soft_reset(rdev);
 
 	if (reset_mask)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index cc0cf9a..e483b07 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3984,10 +3984,15 @@  void evergreen_gpu_pci_config_reset(struct radeon_device *rdev)
 	}
 }
 
-int evergreen_asic_reset(struct radeon_device *rdev)
+int evergreen_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	u32 reset_mask;
 
+	if (hard) {
+		evergreen_gpu_pci_config_reset(rdev);
+		return 0;
+	}
+
 	reset_mask = evergreen_gpu_check_soft_reset(rdev);
 
 	if (reset_mask)
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index ec0aac8..4a3d7ca 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1959,10 +1959,15 @@  static void cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
 	evergreen_print_gpu_status_regs(rdev);
 }
 
-int cayman_asic_reset(struct radeon_device *rdev)
+int cayman_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	u32 reset_mask;
 
+	if (hard) {
+		evergreen_gpu_pci_config_reset(rdev);
+		return 0;
+	}
+
 	reset_mask = cayman_gpu_check_soft_reset(rdev);
 
 	if (reset_mask)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 6e478a2..bbdf15f 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2555,7 +2555,7 @@  void r100_bm_disable(struct radeon_device *rdev)
 	mdelay(1);
 }
 
-int r100_asic_reset(struct radeon_device *rdev)
+int r100_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	struct r100_mc_save save;
 	u32 status, tmp;
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 718b12b..7e417d8 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -410,7 +410,7 @@  static void r300_gpu_init(struct radeon_device *rdev)
 		 rdev->num_gb_pipes, rdev->num_z_pipes);
 }
 
-int r300_asic_reset(struct radeon_device *rdev)
+int r300_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	struct r100_mc_save save;
 	u32 status, tmp;
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 24fa982..d7896bb 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1871,10 +1871,15 @@  static void r600_gpu_pci_config_reset(struct radeon_device *rdev)
 	}
 }
 
-int r600_asic_reset(struct radeon_device *rdev)
+int r600_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	u32 reset_mask;
 
+	if (hard) {
+		r600_gpu_pci_config_reset(rdev);
+		return 0;
+	}
+
 	reset_mask = r600_gpu_check_soft_reset(rdev);
 
 	if (reset_mask)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 91828ec..1ededd1 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1854,7 +1854,7 @@  struct radeon_asic {
 	int (*resume)(struct radeon_device *rdev);
 	int (*suspend)(struct radeon_device *rdev);
 	void (*vga_set_state)(struct radeon_device *rdev, bool state);
-	int (*asic_reset)(struct radeon_device *rdev);
+	int (*asic_reset)(struct radeon_device *rdev, bool hard);
 	/* Flush the HDP cache via MMIO */
 	void (*mmio_hdp_flush)(struct radeon_device *rdev);
 	/* check if 3D engine is idle */
@@ -2720,7 +2720,7 @@  static inline void radeon_ring_write(struct radeon_ring *ring, uint32_t v)
 #define radeon_suspend(rdev) (rdev)->asic->suspend((rdev))
 #define radeon_cs_parse(rdev, r, p) (rdev)->asic->ring[(r)]->cs_parse((p))
 #define radeon_vga_set_state(rdev, state) (rdev)->asic->vga_set_state((rdev), (state))
-#define radeon_asic_reset(rdev) (rdev)->asic->asic_reset((rdev))
+#define radeon_asic_reset(rdev) (rdev)->asic->asic_reset((rdev), false)
 #define radeon_gart_tlb_flush(rdev) (rdev)->asic->gart.tlb_flush((rdev))
 #define radeon_gart_get_page_entry(a, f) (rdev)->asic->gart.get_page_entry((a), (f))
 #define radeon_gart_set_page(rdev, i, e) (rdev)->asic->gart.set_page((rdev), (i), (e))
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index e0aa332..7675dfa 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -64,7 +64,7 @@  int r100_suspend(struct radeon_device *rdev);
 int r100_resume(struct radeon_device *rdev);
 void r100_vga_set_state(struct radeon_device *rdev, bool state);
 bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int r100_asic_reset(struct radeon_device *rdev);
+int r100_asic_reset(struct radeon_device *rdev, bool hard);
 u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc);
 void r100_pci_gart_tlb_flush(struct radeon_device *rdev);
 uint64_t r100_pci_gart_get_page_entry(uint64_t addr, uint32_t flags);
@@ -167,7 +167,7 @@  extern int r300_init(struct radeon_device *rdev);
 extern void r300_fini(struct radeon_device *rdev);
 extern int r300_suspend(struct radeon_device *rdev);
 extern int r300_resume(struct radeon_device *rdev);
-extern int r300_asic_reset(struct radeon_device *rdev);
+extern int r300_asic_reset(struct radeon_device *rdev, bool hard);
 extern void r300_ring_start(struct radeon_device *rdev, struct radeon_ring *ring);
 extern void r300_fence_ring_emit(struct radeon_device *rdev,
 				struct radeon_fence *fence);
@@ -225,7 +225,7 @@  extern int rs400_mc_wait_for_idle(struct radeon_device *rdev);
 /*
  * rs600.
  */
-extern int rs600_asic_reset(struct radeon_device *rdev);
+extern int rs600_asic_reset(struct radeon_device *rdev, bool hard);
 extern int rs600_init(struct radeon_device *rdev);
 extern void rs600_fini(struct radeon_device *rdev);
 extern int rs600_suspend(struct radeon_device *rdev);
@@ -334,7 +334,7 @@  bool r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
 void r600_dma_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring);
 bool r600_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int r600_asic_reset(struct radeon_device *rdev);
+int r600_asic_reset(struct radeon_device *rdev, bool hard);
 int r600_set_surface_reg(struct radeon_device *rdev, int reg,
 			 uint32_t tiling_flags, uint32_t pitch,
 			 uint32_t offset, uint32_t obj_size);
@@ -513,7 +513,7 @@  int evergreen_suspend(struct radeon_device *rdev);
 int evergreen_resume(struct radeon_device *rdev);
 bool evergreen_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 bool evergreen_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int evergreen_asic_reset(struct radeon_device *rdev);
+int evergreen_asic_reset(struct radeon_device *rdev, bool hard);
 void evergreen_bandwidth_update(struct radeon_device *rdev);
 void evergreen_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 void evergreen_hpd_init(struct radeon_device *rdev);
@@ -606,7 +606,7 @@  int cayman_init(struct radeon_device *rdev);
 void cayman_fini(struct radeon_device *rdev);
 int cayman_suspend(struct radeon_device *rdev);
 int cayman_resume(struct radeon_device *rdev);
-int cayman_asic_reset(struct radeon_device *rdev);
+int cayman_asic_reset(struct radeon_device *rdev, bool hard);
 void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int cayman_vm_init(struct radeon_device *rdev);
 void cayman_vm_fini(struct radeon_device *rdev);
@@ -712,7 +712,7 @@  int si_suspend(struct radeon_device *rdev);
 int si_resume(struct radeon_device *rdev);
 bool si_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 bool si_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int si_asic_reset(struct radeon_device *rdev);
+int si_asic_reset(struct radeon_device *rdev, bool hard);
 void si_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int si_irq_set(struct radeon_device *rdev);
 int si_irq_process(struct radeon_device *rdev);
@@ -817,7 +817,7 @@  void cik_fini(struct radeon_device *rdev);
 int cik_suspend(struct radeon_device *rdev);
 int cik_resume(struct radeon_device *rdev);
 bool cik_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int cik_asic_reset(struct radeon_device *rdev);
+int cik_asic_reset(struct radeon_device *rdev, bool hard);
 void cik_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int cik_ring_test(struct radeon_device *rdev, struct radeon_ring *ring);
 int cik_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 6244f4e..3c250c4 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -444,7 +444,7 @@  void rs600_hpd_fini(struct radeon_device *rdev)
 	radeon_irq_kms_disable_hpd(rdev, disable);
 }
 
-int rs600_asic_reset(struct radeon_device *rdev)
+int rs600_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	struct rv515_mc_save save;
 	u32 status, tmp;
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 7ed2a03..f0ad026 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -4081,10 +4081,15 @@  static void si_gpu_pci_config_reset(struct radeon_device *rdev)
 	}
 }
 
-int si_asic_reset(struct radeon_device *rdev)
+int si_asic_reset(struct radeon_device *rdev, bool hard)
 {
 	u32 reset_mask;
 
+	if (hard) {
+		si_gpu_pci_config_reset(rdev);
+		return 0;
+	}
+
 	reset_mask = si_gpu_check_soft_reset(rdev);
 
 	if (reset_mask)