From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 67382] [nouveau, nv50] linux 3.9.7-3.10.3: Xorg won't be available Date: Thu, 22 Aug 2013 22:35:47 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0876212373==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0876212373== Content-Type: multipart/alternative; boundary="1377210947.2843d12.16741"; charset="us-ascii" --1377210947.2843d12.16741 Date: Thu, 22 Aug 2013 22:35:47 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=67382 --- Comment #34 from Emil Velikov --- Here is a bit more information as to the blob's handing on the case nv50 Simple register bashing write(loadval | 0x0100000) udelay(140s) read() write(0) nv94/96 HWSQ 00000000: 5f 01 00 ewait #CRTC0_VBLANK 0x0 00000003: 5f 01 01 ewait #CRTC0_VBLANK 0x1 00000006: 0e wait 0x2 shl 0x6 00000007: 0d wait 0x1 shl 0x6 00000008: 02 wait 0x2 shl 0x0 00000009: 01 wait 0x1 shl 0x0 // the above are only valid if the output is already enabled 0000000a: e2 08 02 10 00 data 0x100208 0000000f: e0 0c a8 61 00 addr 0x61a80c 00000014: 00 nop 00000015: 40 0c a8 addrlo 0xa80c 00000018: 05 wait 0x1 shl 0x2 00000019: e2 00 00 00 00 data 0x0 0000001e: 40 0c a8 addrlo 0xa80c 00000021: 7f exit 00000022: 7f exit 00000023: 7f exit PBUS.HWSQ.TRIGGER <= { TYPE = START | ENTRY_POINT = 0 } PBUS.HWSQ.STATUS => { A = { IP = 0x5 | ACTIVE } } if output is connected ~5,4 ms later PDISPLAY.DAC[0x1].LOAD_CTRL => { LOAD_PATTERN = 0 | PRESENT = 0x7 } PDISPLAY.DAC[0x1].LOAD_CTRL <= { LOAD_PATTERN = 0 | PRESENT = 0 } otherwise in ~5us PDISPLAY.DAC[0x1].LOAD_CTRL => { LOAD_PATTERN = 0 | PRESENT = 0x0 } PDISPLAY.DAC[0x1].LOAD_CTRL <= { LOAD_PATTERN = 0 | PRESENT = 0 } -- You are receiving this mail because: You are the assignee for the bug. --1377210947.2843d12.16741 Date: Thu, 22 Aug 2013 22:35:47 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 34 on bug 67382 from 
Here is a bit more information as to the blob's handing on the case

nv50

Simple register bashing

write(loadval | 0x0100000)
udelay(140s)
read()
write(0)

nv94/96

HWSQ

00000000: 5f 01 00           ewait #CRTC0_VBLANK 0x0
00000003: 5f 01 01           ewait #CRTC0_VBLANK 0x1
00000006: 0e                 wait 0x2 shl 0x6
00000007: 0d                 wait 0x1 shl 0x6
00000008: 02                 wait 0x2 shl 0x0
00000009: 01                 wait 0x1 shl 0x0
// the above are only valid if the output is already enabled
0000000a: e2 08 02 10 00     data 0x100208
0000000f: e0 0c a8 61 00     addr 0x61a80c
00000014: 00                 nop
00000015: 40 0c a8           addrlo 0xa80c
00000018: 05                 wait 0x1 shl 0x2
00000019: e2 00 00 00 00     data 0x0
0000001e: 40 0c a8           addrlo 0xa80c
00000021: 7f                 exit
00000022: 7f                 exit
00000023: 7f                 exit

PBUS.HWSQ.TRIGGER <= { TYPE = START | ENTRY_POINT = 0 }
PBUS.HWSQ.STATUS => { A = { IP = 0x5 | ACTIVE } }

if output is connected ~5,4 ms later
PDISPLAY.DAC[0x1].LOAD_CTRL => { LOAD_PATTERN = 0 | PRESENT = 0x7 }
PDISPLAY.DAC[0x1].LOAD_CTRL <= { LOAD_PATTERN = 0 | PRESENT = 0 }

otherwise in ~5us
PDISPLAY.DAC[0x1].LOAD_CTRL => { LOAD_PATTERN = 0 | PRESENT = 0x0 }
PDISPLAY.DAC[0x1].LOAD_CTRL <= { LOAD_PATTERN = 0 | PRESENT = 0 }

You are receiving this mail because:
  • You are the assignee for the bug.
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