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5 Commits

Author SHA1 Message Date
David Nieto
7134e9e852 gpu: nvgpu: prevent crash during unbind 
This change solves crashes during bind that were introduced in the driver
during the OS unification refactoring due to lack of coverage of the remove()
function.

The fixes during remove are:

(1) Prevent NULL dereference on GPUs with secure boot
(2) Prevent NULL dereferences when fecs_trace is not enabled
(3) Added PRAMIN blocker during driver removal if HW is no longer accesible
(4) Prevent double free of debugfs nodes as they are handled on the
debugfs_remove_recursive() call
(5) quiesce() can now be called without checking is HW accesible flag is set
(6) added function to free irq so no IRQ association is left on the driver after
it is removed
(7) prevent NULL dereference on nvgpu_thread_stop() if the thread is already
stopped

JIRA: EVLR-1739

Change-Id: I787d38f202d5267a6b34815f23e1bc88110e8455
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1563005
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2017-09-22 15:44:25 -07:00
Terje Bergstrom
972c42fddf gpu: nvgpu: Move debugfs fields to os_linux 
Move all Linux specific debugfs dentry fields to struct
nvgpu_os_linux.

JIRA NVGPU-62

Change-Id: I615620005f5d042943dd2e478c1629bcc912c550
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1528263
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2017-08-04 09:24:02 -07:00
Terje Bergstrom
cba424539d gpu: nvgpu: Move dev field from gk20a to nvgpu_os_linux 
Move field "struct device *dev" from struct gk20a to struct
nvgpu_os_linux. The field is valid only for Linux.

JIRA NVGPU-38

Change-Id: I09286aa3a9c5a2406e5a27c1fbf21b2c515b4dd4
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master/r/1514162
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
 2017-07-07 13:44:55 -07:00
Terje Bergstrom
bab823973b gpu: nvgpu: Use accessor for finding struct device 
Use dev_from_gk20a() accessor whenever accessing struct device * from
struct gk20a.

JIRA NVGPU-38

Change-Id: Ide9fca3a56436c8f62e7872580a766c4c1e2353e
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master/r/1507930
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
 2017-06-30 18:34:59 -07:00
Deepak Nibade
26487b82df gpu: nvgpu: move clk_gm20b debugfs to Linux module 
Move debugfs code from clk_gm20b.c to file in Linux module
common/linux/debug_clk.c
This file will be compiled only if CONFIG_DEBUG_FS is set

Define below new HAL APIs for various clock operations
which can be accessed from debug file
init_debugfs()
get_voltage()
get_gpcclk_clock_counter()
pll_reg_write()
get_pll_debug_data()

Export nvgpu_pl_to_div() and nvgpu_div_to_pl() so
that these can be accessed from debug_clk.c

Add new structure nvgpu_clk_pll_debug_data so that
all required register values for debugging can be
made available in debug_clk.c

Add new API gm20b_get_gpc_pll_parms() so that statically
defined variable can be accessed in debug_clk.c too

Remove global variable dvfs_safe_max_freq and add
it to struct clk_gk20a so that it can accessed
from both clk_gm20b.c and debug_clk.c

Jira NVGPU-62

Change-Id: I3ae70b40235e78141a686686930e1f178ad59453
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1488903
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
 2017-06-06 11:04:57 -07:00