[PATCH 22/27] drm/radeon: move lockup detection code into radeon_ring.c
j.glisse at gmail.com
j.glisse at gmail.com
Tue May 1 10:19:32 PDT 2012
From: Christian König <deathsimple at vodafone.de>
It isn't chipset specific, so it makes no sense
to have that inside r100.c.
Signed-off-by: Christian König <deathsimple at vodafone.de>
Reviewed-by: Jerome Glisse <jglisse at redhat.com>
---
drivers/gpu/drm/radeon/evergreen.c | 5 +--
drivers/gpu/drm/radeon/ni.c | 5 +--
drivers/gpu/drm/radeon/r100.c | 57 +--------------------------------
drivers/gpu/drm/radeon/r300.c | 4 +-
drivers/gpu/drm/radeon/r600.c | 10 +-----
drivers/gpu/drm/radeon/radeon.h | 16 ++-------
drivers/gpu/drm/radeon/radeon_asic.h | 5 ---
drivers/gpu/drm/radeon/radeon_ring.c | 53 +++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/si.c | 5 +--
9 files changed, 69 insertions(+), 91 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index a76389c..353d10a 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2424,7 +2424,6 @@ bool evergreen_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *rin
u32 srbm_status;
u32 grbm_status;
u32 grbm_status_se0, grbm_status_se1;
- struct r100_gpu_lockup *lockup = &rdev->config.evergreen.lockup;
int r;
srbm_status = RREG32(SRBM_STATUS);
@@ -2432,7 +2431,7 @@ bool evergreen_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *rin
grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
if (!(grbm_status & GUI_ACTIVE)) {
- r100_gpu_lockup_update(lockup, ring);
+ radeon_ring_lockup_update(ring);
return false;
}
/* force CP activities */
@@ -2444,7 +2443,7 @@ bool evergreen_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *rin
radeon_ring_unlock_commit(rdev, ring);
}
ring->rptr = RREG32(CP_RB_RPTR);
- return r100_gpu_cp_is_lockup(rdev, lockup, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index c0b0956..4327b32 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1397,7 +1397,6 @@ bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
u32 srbm_status;
u32 grbm_status;
u32 grbm_status_se0, grbm_status_se1;
- struct r100_gpu_lockup *lockup = &rdev->config.cayman.lockup;
int r;
srbm_status = RREG32(SRBM_STATUS);
@@ -1405,7 +1404,7 @@ bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
if (!(grbm_status & GUI_ACTIVE)) {
- r100_gpu_lockup_update(lockup, ring);
+ radeon_ring_lockup_update(ring);
return false;
}
/* force CP activities */
@@ -1418,7 +1417,7 @@ bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
}
/* XXX deal with CP0,1,2 */
ring->rptr = RREG32(ring->rptr_reg);
- return r100_gpu_cp_is_lockup(rdev, lockup, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
static int cayman_gpu_soft_reset(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index ac53bd8..cd00909 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2155,59 +2155,6 @@ int r100_mc_wait_for_idle(struct radeon_device *rdev)
return -1;
}
-void r100_gpu_lockup_update(struct r100_gpu_lockup *lockup, struct radeon_ring *ring)
-{
- lockup->last_cp_rptr = ring->rptr;
- lockup->last_jiffies = jiffies;
-}
-
-/**
- * r100_gpu_cp_is_lockup() - check if CP is lockup by recording information
- * @rdev: radeon device structure
- * @lockup: r100_gpu_lockup structure holding CP lockup tracking informations
- * @cp: radeon_cp structure holding CP information
- *
- * We don't need to initialize the lockup tracking information as we will either
- * have CP rptr to a different value of jiffies wrap around which will force
- * initialization of the lockup tracking informations.
- *
- * A possible false positivie is if we get call after while and last_cp_rptr ==
- * the current CP rptr, even if it's unlikely it might happen. To avoid this
- * if the elapsed time since last call is bigger than 2 second than we return
- * false and update the tracking information. Due to this the caller must call
- * r100_gpu_cp_is_lockup several time in less than 2sec for lockup to be reported
- * the fencing code should be cautious about that.
- *
- * Caller should write to the ring to force CP to do something so we don't get
- * false positive when CP is just gived nothing to do.
- *
- **/
-bool r100_gpu_cp_is_lockup(struct radeon_device *rdev, struct r100_gpu_lockup *lockup, struct radeon_ring *ring)
-{
- unsigned long cjiffies, elapsed;
-
- cjiffies = jiffies;
- if (!time_after(cjiffies, lockup->last_jiffies)) {
- /* likely a wrap around */
- lockup->last_cp_rptr = ring->rptr;
- lockup->last_jiffies = jiffies;
- return false;
- }
- if (ring->rptr != lockup->last_cp_rptr) {
- /* CP is still working no lockup */
- lockup->last_cp_rptr = ring->rptr;
- lockup->last_jiffies = jiffies;
- return false;
- }
- elapsed = jiffies_to_msecs(cjiffies - lockup->last_jiffies);
- if (elapsed >= 10000) {
- dev_err(rdev->dev, "GPU lockup CP stall for more than %lumsec\n", elapsed);
- return true;
- }
- /* give a chance to the GPU ... */
- return false;
-}
-
bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
u32 rbbm_status;
@@ -2215,7 +2162,7 @@ bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
rbbm_status = RREG32(R_000E40_RBBM_STATUS);
if (!G_000E40_GUI_ACTIVE(rbbm_status)) {
- r100_gpu_lockup_update(&rdev->config.r100.lockup, ring);
+ radeon_ring_lockup_update(ring);
return false;
}
/* force CP activities */
@@ -2227,7 +2174,7 @@ bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
radeon_ring_unlock_commit(rdev, ring);
}
ring->rptr = RREG32(ring->rptr_reg);
- return r100_gpu_cp_is_lockup(rdev, &rdev->config.r100.lockup, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
void r100_bm_disable(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 26e0db8..e207664 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -384,7 +384,7 @@ bool r300_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
rbbm_status = RREG32(R_000E40_RBBM_STATUS);
if (!G_000E40_GUI_ACTIVE(rbbm_status)) {
- r100_gpu_lockup_update(&rdev->config.r300.lockup, ring);
+ radeon_ring_lockup_update(ring);
return false;
}
/* force CP activities */
@@ -396,7 +396,7 @@ bool r300_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
radeon_ring_unlock_commit(rdev, ring);
}
ring->rptr = RREG32(RADEON_CP_RB_RPTR);
- return r100_gpu_cp_is_lockup(rdev, &rdev->config.r300.lockup, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
int r300_asic_reset(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index a252160..48f6fae 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1350,19 +1350,13 @@ bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
u32 srbm_status;
u32 grbm_status;
u32 grbm_status2;
- struct r100_gpu_lockup *lockup;
int r;
- if (rdev->family >= CHIP_RV770)
- lockup = &rdev->config.rv770.lockup;
- else
- lockup = &rdev->config.r600.lockup;
-
srbm_status = RREG32(R_000E50_SRBM_STATUS);
grbm_status = RREG32(R_008010_GRBM_STATUS);
grbm_status2 = RREG32(R_008014_GRBM_STATUS2);
if (!G_008010_GUI_ACTIVE(grbm_status)) {
- r100_gpu_lockup_update(lockup, ring);
+ radeon_ring_lockup_update(ring);
return false;
}
/* force CP activities */
@@ -1374,7 +1368,7 @@ bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
radeon_ring_unlock_commit(rdev, ring);
}
ring->rptr = RREG32(ring->rptr_reg);
- return r100_gpu_cp_is_lockup(rdev, lockup, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
int r600_asic_reset(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index d573356..a5d707d 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -596,6 +596,8 @@ struct radeon_ring {
unsigned ring_size;
unsigned ring_free_dw;
int count_dw;
+ unsigned long last_activity;
+ unsigned last_rptr;
uint64_t gpu_addr;
uint32_t align_mask;
uint32_t ptr_mask;
@@ -739,6 +741,8 @@ void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *cp);
void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *cp);
void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *cp);
int radeon_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
+void radeon_ring_lockup_update(struct radeon_ring *ring);
+bool radeon_ring_test_lockup(struct radeon_device *rdev, struct radeon_ring *ring);
int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ring_size,
unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg,
u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop);
@@ -1188,16 +1192,10 @@ struct radeon_asic {
/*
* Asic structures
*/
-struct r100_gpu_lockup {
- unsigned long last_jiffies;
- u32 last_cp_rptr;
-};
-
struct r100_asic {
const unsigned *reg_safe_bm;
unsigned reg_safe_bm_size;
u32 hdp_cntl;
- struct r100_gpu_lockup lockup;
};
struct r300_asic {
@@ -1205,7 +1203,6 @@ struct r300_asic {
unsigned reg_safe_bm_size;
u32 resync_scratch;
u32 hdp_cntl;
- struct r100_gpu_lockup lockup;
};
struct r600_asic {
@@ -1227,7 +1224,6 @@ struct r600_asic {
unsigned tiling_group_size;
unsigned tile_config;
unsigned backend_map;
- struct r100_gpu_lockup lockup;
};
struct rv770_asic {
@@ -1253,7 +1249,6 @@ struct rv770_asic {
unsigned tiling_group_size;
unsigned tile_config;
unsigned backend_map;
- struct r100_gpu_lockup lockup;
};
struct evergreen_asic {
@@ -1280,7 +1275,6 @@ struct evergreen_asic {
unsigned tiling_group_size;
unsigned tile_config;
unsigned backend_map;
- struct r100_gpu_lockup lockup;
};
struct cayman_asic {
@@ -1319,7 +1313,6 @@ struct cayman_asic {
unsigned multi_gpu_tile_size;
unsigned tile_config;
- struct r100_gpu_lockup lockup;
};
struct si_asic {
@@ -1350,7 +1343,6 @@ struct si_asic {
unsigned multi_gpu_tile_size;
unsigned tile_config;
- struct r100_gpu_lockup lockup;
};
union radeon_asic_config {
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 3d9f9f1..d3ec546 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -103,11 +103,6 @@ int r100_pci_gart_enable(struct radeon_device *rdev);
void r100_pci_gart_disable(struct radeon_device *rdev);
int r100_debugfs_mc_info_init(struct radeon_device *rdev);
int r100_gui_wait_for_idle(struct radeon_device *rdev);
-void r100_gpu_lockup_update(struct r100_gpu_lockup *lockup,
- struct radeon_ring *cp);
-bool r100_gpu_cp_is_lockup(struct radeon_device *rdev,
- struct r100_gpu_lockup *lockup,
- struct radeon_ring *cp);
void r100_ib_fini(struct radeon_device *rdev);
int r100_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);
void r100_irq_disable(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 7031d69..b34575f 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -352,6 +352,59 @@ void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *rin
mutex_unlock(&ring->mutex);
}
+void radeon_ring_lockup_update(struct radeon_ring *ring)
+{
+ ring->last_rptr = ring->rptr;
+ ring->last_activity = jiffies;
+}
+
+/**
+ * radeon_ring_test_lockup() - check if ring is lockedup by recording information
+ * @rdev: radeon device structure
+ * @ring: radeon_ring structure holding ring information
+ *
+ * We don't need to initialize the lockup tracking information as we will either
+ * have CP rptr to a different value of jiffies wrap around which will force
+ * initialization of the lockup tracking informations.
+ *
+ * A possible false positivie is if we get call after while and last_cp_rptr ==
+ * the current CP rptr, even if it's unlikely it might happen. To avoid this
+ * if the elapsed time since last call is bigger than 2 second than we return
+ * false and update the tracking information. Due to this the caller must call
+ * radeon_ring_test_lockup several time in less than 2sec for lockup to be reported
+ * the fencing code should be cautious about that.
+ *
+ * Caller should write to the ring to force CP to do something so we don't get
+ * false positive when CP is just gived nothing to do.
+ *
+ **/
+bool radeon_ring_test_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ unsigned long cjiffies, elapsed;
+ uint32_t rptr;
+
+ cjiffies = jiffies;
+ if (!time_after(cjiffies, ring->last_activity)) {
+ /* likely a wrap around */
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ rptr = RREG32(ring->rptr_reg);
+ ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift;
+ if (ring->rptr != ring->last_rptr) {
+ /* CP is still working no lockup */
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ elapsed = jiffies_to_msecs(cjiffies - ring->last_activity);
+ if (elapsed >= 10000) {
+ dev_err(rdev->dev, "GPU lockup CP stall for more than %lumsec\n", elapsed);
+ return true;
+ }
+ /* give a chance to the GPU ... */
+ return false;
+}
+
int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size,
unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg,
u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop)
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index f05d37a..e76d8b1 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -2217,7 +2217,6 @@ bool si_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
u32 srbm_status;
u32 grbm_status, grbm_status2;
u32 grbm_status_se0, grbm_status_se1;
- struct r100_gpu_lockup *lockup = &rdev->config.si.lockup;
int r;
srbm_status = RREG32(SRBM_STATUS);
@@ -2226,7 +2225,7 @@ bool si_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
if (!(grbm_status & GUI_ACTIVE)) {
- r100_gpu_lockup_update(lockup, ring);
+ radeon_ring_lockup_update(ring);
return false;
}
/* force CP activities */
@@ -2239,7 +2238,7 @@ bool si_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
}
/* XXX deal with CP0,1,2 */
ring->rptr = RREG32(ring->rptr_reg);
- return r100_gpu_cp_is_lockup(rdev, lockup, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
static int si_gpu_soft_reset(struct radeon_device *rdev)
--
1.7.7.6
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