[haiku-bugs] Re: [Haiku] #10606: Would be posible add support for Radeon 7480D (A4 5300 APU) ?
- From: "waddlesplash" <trac@xxxxxxxxxxxx>
- Date: Thu, 09 Oct 2014 19:46:46 -0000
#10606: Would be posible add support for Radeon 7480D (A4 5300 APU) ?
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Reporter: lukove | Owner: kallisti5
Type: enhancement | Status: assigned
Priority: normal | Milestone: R1
Component: Drivers/Graphics/radeon_hd | Version: R1/Development
Resolution: | Keywords: Radeon 7480D
Blocked By: | Blocking: 10565
Has a Patch: 0 | Platform: All
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Comment (by waddlesplash):
Some more info from Alex:
{{{
<waddlesplash> kallisti5: would http://cgit.haiku-
os.org/haiku/commit/?id=72ec5a3630aa77a763c645e698c18259b8892953 apply to
older chipsets too?
<kallisti5> 100MBit -> internet
<kallisti5> waddlesplash: no idea... I didn't make that change
<waddlesplash> Because, Julian said to me when I asked that he had the
exact same symptoms that ttcoder/Dane were getting in that old ticket
<waddlesplash> I know
<kallisti5> looking at the code it doesn't apply
<kallisti5> although
<kallisti5> ... wonder why he didn't use the defines there
<kallisti5> PCI_BAR_MMIO
<waddlesplash> so changing chipsetID < RADEON_BONAIRE to whatever Dane had
would not affect it?
<kallisti5> and PCI_BAR_MMIO_whatever5 is
<kallisti5> oh.. it was a local define
<kallisti5> nevermind :P
<kallisti5> ooooooooooooooooooooh
<kallisti5> he's checking chipset there
<kallisti5> that's a bad idea
<waddlesplash> well, it fixed the bug for him and someone else
<waddlesplash> so if it's half wrong, please tell how to fix
<kallisti5> should be looking at dceMajor and dceMinor
<kallisti5> the ordering of the chipsets in linux vs us differs
<kallisti5> linux is a confusing mess... they aren't ordered by release
<kallisti5> they're ordered by internally how the cards are related
<kallisti5> at amd
<kallisti5> each generation does have a dce version though
<kallisti5> I look at that in the driver as it makes wayy more sense
<kallisti5> could be that the card you have is out of order
<waddlesplash> not my problem
<waddlesplash> this was the black-screen-onboot problem
<waddlesplash> lemme find that ticket
<kallisti5> given the logic the following should happen:
<kallisti5> look up a RADEON_BONAIRE card
<kallisti5> find the DCE major / minor
<kallisti5> do a < DCE major + minor
<waddlesplash> kallisti5: here, this was the card not working http://cgit
.haiku-os.org/haiku/commit/?id=6289332b7bc38bab2518ab4a719e80a3ed9ede15
<kallisti5> bonare is DCE 8.2
<kallisti5> so yeah.. don't think that is the solution unless aruba comes
after bonare in linux
<kallisti5>
http://osxr.org/linux/source/drivers/gpu/drm/radeon/radeon.h#2541
<kallisti5> < DCE 8.0
<kallisti5> even though bonare is 8.2
<kallisti5> crappy linux drivers
}}}
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Ticket URL: <https://dev.haiku-os.org/ticket/10606#comment:9>
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