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drm/i915/bdw: Expand FADD to 64bit

Browse source 
For error state, like the recent modification to ACTHD, FADD also gets
an upper dword. This is useful for debug to make sure the fetch address
and head are similar.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2014-04-01 16:31:07 -07:00 committed by Daniel Vetter
parent 64bed78820
commit 13ffadd1f9
3 changed files with 7 additions and 3 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
View file

@ -359,7 +359,7 @@ struct drm_i915_error_state {
u64 bbaddr;
u64 acthd;
u32 fault_reg;
u32 faddr;
u64 faddr;
u32 rc_psmi; /* sleep state */
u32 semaphore_mboxes[I915_NUM_RINGS - 1];

7
drivers/gpu/drm/i915/i915_gpu_error.c
View file

@ -257,7 +257,8 @@ static void i915_ring_error_state(struct drm_i915_error_state_buf *m,
err_printf(m, " INSTPS: 0x%08x\n", ring->instps);
}
err_printf(m, " INSTPM: 0x%08x\n", ring->instpm);
err_printf(m, " FADDR: 0x%08x\n", ring->faddr);
err_printf(m, " FADDR: 0x%08x %08x\n", upper_32_bits(ring->faddr),
lower_32_bits(ring->faddr));
if (INTEL_INFO(dev)->gen >= 6) {
err_printf(m, " RC PSMI: 0x%08x\n", ring->rc_psmi);
err_printf(m, " FAULT_REG: 0x%08x\n", ring->fault_reg);
@ -781,8 +782,10 @@ static void i915_record_ring_state(struct drm_device *dev,
ering->instdone = I915_READ(RING_INSTDONE(ring->mmio_base));
ering->instps = I915_READ(RING_INSTPS(ring->mmio_base));
ering->bbaddr = I915_READ(RING_BBADDR(ring->mmio_base));
if (INTEL_INFO(dev)->gen >= 8)
if (INTEL_INFO(dev)->gen >= 8) {
ering->faddr |= (u64) I915_READ(RING_DMA_FADD_UDW(ring->mmio_base)) << 32;
ering->bbaddr |= (u64) I915_READ(RING_BBADDR_UDW(ring->mmio_base)) << 32;
}
ering->bbstate = I915_READ(RING_BBSTATE(ring->mmio_base));
} else {
ering->faddr = I915_READ(DMA_FADD_I8XX);

1
drivers/gpu/drm/i915/i915_reg.h
View file

@ -835,6 +835,7 @@ enum punit_power_well {
#define RING_INSTDONE(base) ((base)+0x6c)
#define RING_INSTPS(base) ((base)+0x70)
#define RING_DMA_FADD(base) ((base)+0x78)
#define RING_DMA_FADD_UDW(base) ((base)+0x60) /* gen8+ */
#define RING_INSTPM(base) ((base)+0xc0)
#define RING_MI_MODE(base) ((base)+0x9c)
#define INSTPS 0x02070 /* 965+ only */