Re: [Intel-gfx] [PATCH 53/89] drm/i915/skl: Gen9 Forcewake
Damien Lespiau damien.lesp...@intel.com writes:
From: Zhe Wang zhe1.w...@intel.com
Implement common forcewake functions shared by Gen9 features.
Signed-off-by: Zhe Wang zhe1.w...@intel.com
Signed-off-by: Damien Lespiau damien.lesp...@intel.com
---
drivers/gpu/drm/i915/i915_drv.h | 5 +-
drivers/gpu/drm/i915/i915_reg.h | 6 ++
drivers/gpu/drm/i915/intel_uncore.c | 175
+++-
3 files changed, 184 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9b0e398..84defa4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -535,6 +535,7 @@ struct intel_uncore {
unsigned fw_rendercount;
unsigned fw_mediacount;
+ unsigned fw_blittercount;
struct timer_list force_wake_timer;
};
@@ -2950,7 +2951,9 @@ int vlv_freq_opcode(struct drm_i915_private *dev_priv,
int val);
#define FORCEWAKE_RENDER (1 0)
#define FORCEWAKE_MEDIA (1 1)
-#define FORCEWAKE_ALL(FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
+#define FORCEWAKE_BLITTER(1 2)
+#define FORCEWAKE_ALL(FORCEWAKE_RENDER | FORCEWAKE_MEDIA | \
+ FORCEWAKE_BLITTER)
#define I915_READ8(reg)
dev_priv-uncore.funcs.mmio_readb(dev_priv, (reg), true)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 414c2a5..417075d 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5738,6 +5738,12 @@ enum punit_power_well {
#define VLV_GTLC_PW_MEDIA_STATUS_MASK (1 5)
#define VLV_GTLC_PW_RENDER_STATUS_MASK (1 7)
#define FORCEWAKE_MT0xa188 /*
multi-threaded */
+#define FORCEWAKE_MEDIA_GEN90xa270
+#define FORCEWAKE_RENDER_GEN9 0xa278
+#define FORCEWAKE_BLITTER_GEN9 0xa188
+#define FORCEWAKE_ACK_MEDIA_GEN90x0D88
+#define FORCEWAKE_ACK_RENDER_GEN9 0x0D84
+#define FORCEWAKE_ACK_BLITTER_GEN9 0x130044
#define FORCEWAKE_KERNEL 0x1
#define FORCEWAKE_USER 0x2
#define FORCEWAKE_MT_ACK0x130040
diff --git a/drivers/gpu/drm/i915/intel_uncore.c
b/drivers/gpu/drm/i915/intel_uncore.c
index 3b27fb0..7b7fc9e 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -299,6 +299,154 @@ static void vlv_force_wake_put(struct drm_i915_private
*dev_priv, int fw_engine)
spin_unlock_irqrestore(dev_priv-uncore.lock, irqflags);
}
+static void __gen9_gt_force_wake_mt_reset(struct drm_i915_private *dev_priv)
+{
+ __raw_i915_write32(dev_priv, FORCEWAKE_RENDER_GEN9,
+ _MASKED_BIT_DISABLE(0x));
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_MEDIA_GEN9,
+ _MASKED_BIT_DISABLE(0x));
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_BLITTER_GEN9,
+ _MASKED_BIT_DISABLE(0x));
+}
+
+static void __gen9_force_wake_get(struct drm_i915_private *dev_priv,
+ int fw_engine)
+{
+ /* Check for Render Engine */
+ if (FORCEWAKE_RENDER fw_engine) {
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_RENDER_GEN9)
+ FORCEWAKE_KERNEL) == 0,
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR(Timed out: Render forcewake old ack to
clear.\n);
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_RENDER_GEN9,
+_MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
+
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_RENDER_GEN9)
+ FORCEWAKE_KERNEL),
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR(Timed out: waiting for Render to ack.\n);
+ }
+
+ /* Check for Media Engine */
+ if (FORCEWAKE_MEDIA fw_engine) {
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_MEDIA_GEN9)
+ FORCEWAKE_KERNEL) == 0,
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR(Timed out: Media forcewake old ack to
clear.\n);
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_MEDIA_GEN9,
+_MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
+
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_MEDIA_GEN9)
+
[Intel-gfx] [PATCH 53/89] drm/i915/skl: Gen9 Forcewake
From: Zhe Wang zhe1.w...@intel.com
Implement common forcewake functions shared by Gen9 features.
Signed-off-by: Zhe Wang zhe1.w...@intel.com
Signed-off-by: Damien Lespiau damien.lesp...@intel.com
---
drivers/gpu/drm/i915/i915_drv.h | 5 +-
drivers/gpu/drm/i915/i915_reg.h | 6 ++
drivers/gpu/drm/i915/intel_uncore.c | 175 +++-
3 files changed, 184 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9b0e398..84defa4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -535,6 +535,7 @@ struct intel_uncore {
unsigned fw_rendercount;
unsigned fw_mediacount;
+ unsigned fw_blittercount;
struct timer_list force_wake_timer;
};
@@ -2950,7 +2951,9 @@ int vlv_freq_opcode(struct drm_i915_private *dev_priv,
int val);
#define FORCEWAKE_RENDER (1 0)
#define FORCEWAKE_MEDIA(1 1)
-#define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
+#define FORCEWAKE_BLITTER (1 2)
+#define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA | \
+ FORCEWAKE_BLITTER)
#define I915_READ8(reg)
dev_priv-uncore.funcs.mmio_readb(dev_priv, (reg), true)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 414c2a5..417075d 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5738,6 +5738,12 @@ enum punit_power_well {
#define VLV_GTLC_PW_MEDIA_STATUS_MASK(1 5)
#define VLV_GTLC_PW_RENDER_STATUS_MASK (1 7)
#define FORCEWAKE_MT 0xa188 /* multi-threaded */
+#define FORCEWAKE_MEDIA_GEN9 0xa270
+#define FORCEWAKE_RENDER_GEN9 0xa278
+#define FORCEWAKE_BLITTER_GEN90xa188
+#define FORCEWAKE_ACK_MEDIA_GEN9 0x0D88
+#define FORCEWAKE_ACK_RENDER_GEN9 0x0D84
+#define FORCEWAKE_ACK_BLITTER_GEN90x130044
#define FORCEWAKE_KERNEL 0x1
#define FORCEWAKE_USER 0x2
#define FORCEWAKE_MT_ACK 0x130040
diff --git a/drivers/gpu/drm/i915/intel_uncore.c
b/drivers/gpu/drm/i915/intel_uncore.c
index 3b27fb0..7b7fc9e 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -299,6 +299,154 @@ static void vlv_force_wake_put(struct drm_i915_private
*dev_priv, int fw_engine)
spin_unlock_irqrestore(dev_priv-uncore.lock, irqflags);
}
+static void __gen9_gt_force_wake_mt_reset(struct drm_i915_private *dev_priv)
+{
+ __raw_i915_write32(dev_priv, FORCEWAKE_RENDER_GEN9,
+ _MASKED_BIT_DISABLE(0x));
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_MEDIA_GEN9,
+ _MASKED_BIT_DISABLE(0x));
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_BLITTER_GEN9,
+ _MASKED_BIT_DISABLE(0x));
+}
+
+static void __gen9_force_wake_get(struct drm_i915_private *dev_priv,
+ int fw_engine)
+{
+ /* Check for Render Engine */
+ if (FORCEWAKE_RENDER fw_engine) {
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_RENDER_GEN9)
+ FORCEWAKE_KERNEL) == 0,
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR(Timed out: Render forcewake old ack to
clear.\n);
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_RENDER_GEN9,
+ _MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
+
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_RENDER_GEN9)
+ FORCEWAKE_KERNEL),
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR(Timed out: waiting for Render to ack.\n);
+ }
+
+ /* Check for Media Engine */
+ if (FORCEWAKE_MEDIA fw_engine) {
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_MEDIA_GEN9)
+ FORCEWAKE_KERNEL) == 0,
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR(Timed out: Media forcewake old ack to
clear.\n);
+
+ __raw_i915_write32(dev_priv, FORCEWAKE_MEDIA_GEN9,
+ _MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
+
+ if (wait_for_atomic((__raw_i915_read32(dev_priv,
+ FORCEWAKE_ACK_MEDIA_GEN9)
+ FORCEWAKE_KERNEL),
+
