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The code snippet below provides an example on using the power_up and power_down procs commands provided above (power_cmds.tcl) to power cycle the GPU Pixel Processor PP0 island .
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xsdb% source power_cmds.tcl
# Get Power Status of all islands
xsdb% rrd pmu_global pwr_state
pwr_state: 00fffcbf
pl (Bits [23]): 1 fp (Bits [22]): 1 usb1 (Bits [21]): 1
usb0 (Bits [20]): 1 ocm_bank3 (Bits [19]): 1 ocm_bank2 (Bits [18]): 1
ocm_bank1 (Bits [17]): 1 ocm_bank0 (Bits [16]): 1 tcm1b (Bits [15]): 1
tcm1a (Bits [14]): 1 tcm0b (Bits [13]): 1 tcm0a (Bits [12]): 1
r5_1 (Bits [11]): 1 r5_0 (Bits [10]): 1 l2_bank0 (Bits [7]): 1
pp1 (Bits [5]): 1 pp0 (Bits [4]): 1 acpu3 (Bits [3]): 1
acpu2 (Bits [2]): 1 acpu1 (Bits [1]): 1 acpu0 (Bits [0]): 1
# Power down PP0 island
xsdb% power_down PP0
Initiating Power Down Request (Mask: 0x00000010)...Done
# Get the power island status. Notice that PP0 status shows '0' - powered off
xsdb% rrd pmu_global pwr_state
pwr_state: 00fffcaf
pl (Bits [23]): 1 fp (Bits [22]): 1 usb1 (Bits [21]): 1
usb0 (Bits [20]): 1 ocm_bank3 (Bits [19]): 1 ocm_bank2 (Bits [18]): 1
ocm_bank1 (Bits [17]): 1 ocm_bank0 (Bits [16]): 1 tcm1b (Bits [15]): 1
tcm1a (Bits [14]): 1 tcm0b (Bits [13]): 1 tcm0a (Bits [12]): 1
r5_1 (Bits [11]): 1 r5_0 (Bits [10]): 1 l2_bank0 (Bits [7]): 1
pp1 (Bits [5]): 1 pp0 (Bits [4]): 0 acpu3 (Bits [3]): 1
acpu2 (Bits [2]): 1 acpu1 (Bits [1]): 1 acpu0 (Bits [0]): 1
# Power back the PP0 island
xsdb% power_up PP0
Initiating Power Up Request (Mask: 0x00000010)...Done
# Get the power island status. Notice that PP0 status shows '1' - powewred on
xsdb% rrd pmu_global pwr_state
pwr_state: 00fffcbf
pl (Bits [23]): 1 fp (Bits [22]): 1 usb1 (Bits [21]): 1
usb0 (Bits [20]): 1 ocm_bank3 (Bits [19]): 1 ocm_bank2 (Bits [18]): 1
ocm_bank1 (Bits [17]): 1 ocm_bank0 (Bits [16]): 1 tcm1b (Bits [15]): 1
tcm1a (Bits [14]): 1 tcm0b (Bits [13]): 1 tcm0a (Bits [12]): 1
r5_1 (Bits [11]): 1 r5_0 (Bits [10]): 1 l2_bank0 (Bits [7]): 1
pp1 (Bits [5]): 1 pp0 (Bits [4]): 1 acpu3 (Bits [3]): 1
acpu2 (Bits [2]): 1 acpu1 (Bits [1]): 1 acpu0 (Bits [0]): 1
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