diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 6d6fde85a636..f23cc5f037a6 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -14,22 +14,23 @@ struct intel_hw_status_page { struct drm_i915_gem_object *obj; }; -#define I915_RING_READ(reg) i915_safe_read(dev_priv, reg) +#define I915_RING_READ(reg) i915_gt_read(dev_priv, reg) +#define I915_RING_WRITE(reg, val) i915_gt_write(dev_priv, reg, val) #define I915_READ_TAIL(ring) I915_RING_READ(RING_TAIL((ring)->mmio_base)) -#define I915_WRITE_TAIL(ring, val) I915_WRITE(RING_TAIL((ring)->mmio_base), val) +#define I915_WRITE_TAIL(ring, val) I915_RING_WRITE(RING_TAIL((ring)->mmio_base), val) #define I915_READ_START(ring) I915_RING_READ(RING_START((ring)->mmio_base)) -#define I915_WRITE_START(ring, val) I915_WRITE(RING_START((ring)->mmio_base), val) +#define I915_WRITE_START(ring, val) I915_RING_WRITE(RING_START((ring)->mmio_base), val) #define I915_READ_HEAD(ring) I915_RING_READ(RING_HEAD((ring)->mmio_base)) -#define I915_WRITE_HEAD(ring, val) I915_WRITE(RING_HEAD((ring)->mmio_base), val) +#define I915_WRITE_HEAD(ring, val) I915_RING_WRITE(RING_HEAD((ring)->mmio_base), val) #define I915_READ_CTL(ring) I915_RING_READ(RING_CTL((ring)->mmio_base)) -#define I915_WRITE_CTL(ring, val) I915_WRITE(RING_CTL((ring)->mmio_base), val) +#define I915_WRITE_CTL(ring, val) I915_RING_WRITE(RING_CTL((ring)->mmio_base), val) -#define I915_WRITE_IMR(ring, val) I915_WRITE(RING_IMR((ring)->mmio_base), val) #define I915_READ_IMR(ring) I915_RING_READ(RING_IMR((ring)->mmio_base)) +#define I915_WRITE_IMR(ring, val) I915_RING_WRITE(RING_IMR((ring)->mmio_base), val) #define I915_READ_NOPID(ring) I915_RING_READ(RING_NOPID((ring)->mmio_base)) #define I915_READ_SYNC_0(ring) I915_RING_READ(RING_SYNC_0((ring)->mmio_base)) @@ -43,7 +44,7 @@ struct intel_ring_buffer { RING_BLT = 0x4, } id; u32 mmio_base; - void *virtual_start; + void __iomem *virtual_start; struct drm_device *dev; struct drm_i915_gem_object *obj; @@ -58,6 +59,7 @@ struct intel_ring_buffer { u32 irq_refcount; u32 irq_mask; u32 irq_seqno; /* last seq seem at irq time */ + u32 trace_irq_seqno; u32 waiting_seqno; u32 sync_seqno[I915_NUM_RINGS-1]; bool __must_check (*irq_get)(struct intel_ring_buffer *ring); @@ -141,6 +143,26 @@ intel_read_status_page(struct intel_ring_buffer *ring, return ioread32(ring->status_page.page_addr + reg); } +/** + * Reads a dword out of the status page, which is written to from the command + * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or + * MI_STORE_DATA_IMM. + * + * The following dwords have a reserved meaning: + * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes. + * 0x04: ring 0 head pointer + * 0x05: ring 1 head pointer (915-class) + * 0x06: ring 2 head pointer (915-class) + * 0x10-0x1b: Context status DWords (GM45) + * 0x1f: Last written status offset. (GM45) + * + * The area from dword 0x20 to 0x3ff is available for driver usage. + */ +#define READ_HWSP(dev_priv, reg) intel_read_status_page(LP_RING(dev_priv), reg) +#define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX) +#define I915_GEM_HWS_INDEX 0x20 +#define I915_BREADCRUMB_INDEX 0x21 + void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring); int __must_check intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n); int __must_check intel_ring_begin(struct intel_ring_buffer *ring, int n); @@ -166,6 +188,12 @@ int intel_init_blt_ring_buffer(struct drm_device *dev); u32 intel_ring_get_active_head(struct intel_ring_buffer *ring); void intel_ring_setup_status_page(struct intel_ring_buffer *ring); +static inline void i915_trace_irq_get(struct intel_ring_buffer *ring, u32 seqno) +{ + if (ring->trace_irq_seqno == 0 && ring->irq_get(ring)) + ring->trace_irq_seqno = seqno; +} + /* DRI warts */ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size); |