linux-kernel - [GIT PULL] parisc architecture fixes and enhancements for v6.1-rc1

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Date:   Fri, 14 Oct 2022 20:50:05 +0200
From:   Helge Deller <deller@....de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-parisc@...r.kernel.org,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        John David Anglin <dave.anglin@...l.net>
Subject: [GIT PULL] parisc architecture fixes and enhancements for v6.1-rc1

Hi Linus,

please pull the following set of fixes and enhancements for the
parisc architecture for 6.1-rc1:

Fixes:
- When we added basic vDSO support in kernel 5.18 we introduced a bug
  which prevented a mmap() of graphic card memory. This is because we
  used the DMB (data memory break trap bit) page flag as special-bit, but
  missed to clear that bit when loading the TLB.
- Graphics card memory size was not correctly aligned
- Spelling fixes (from Colin Ian King)

Enhancements:
- PDC console (which uses firmware calls) now rewritten as early console
- Reduced size of alternative tables

Thanks,
Helge

---

The following changes since commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f:

  Linux 6.0 (2022-10-02 14:09:07 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git tags/parisc-for-6.1-1

for you to fetch changes up to 34314cd615af5036e582fad14f2bb13e4383bfe1:

  parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver (2022-10-14 20:06:30 +0200)

----------------------------------------------------------------
parisc architecture fixes and updates for kernel v6.1-rc1:

* Convert the PDC console to an early console
* Unbreak mmap() of graphics card memory due to PAGE_SPECIAL pgtable flag
* Reduce the size of the alternative tables
* Align stifb graphics card memory size to 4MB
* Spelling fixes

----------------------------------------------------------------
Colin Ian King (1):
      parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver

Helge Deller (4):
      parisc: Reduce kernel size by packing alternative tables
      parisc: Convert PDC console to an early console
      parisc: fbdev/stifb: Align graphics memory size to 4MB
      parisc: Fix userspace graphics card breakage due to pgtable special bit

 arch/parisc/include/asm/alternative.h |  21 +--
 arch/parisc/include/asm/pdc.h         |   3 -
 arch/parisc/include/asm/pgtable.h     |   7 +-
 arch/parisc/kernel/alternative.c      |   7 +-
 arch/parisc/kernel/entry.S            |   8 ++
 arch/parisc/kernel/pdc_cons.c         | 240 ++++------------------------------
 arch/parisc/kernel/setup.c            |   6 +-
 arch/parisc/kernel/traps.c            |  15 +--
 drivers/parisc/eisa_enumerator.c      |   8 +-
 drivers/tty/serial/Kconfig            |  15 ---
 drivers/video/fbdev/stifb.c           |   2 +-
 lib/Kconfig.kgdb                      |   2 +-
 12 files changed, 67 insertions(+), 267 deletions(-)