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During GPU reset, when receiving a DMCUB OUTBUX0 interrupt,
DAL code will set it to be OUTBOX interrupt and sets hw interrupt.
However, OUTBOX interrupt is not registered yet, so a NULL pointer
access will be executed.
Call Trace:
dal_irq_service_set+0x30/0x90 [amdgpu]
dc_interrupt_set+0x24/0x30 [amdgpu]
amdgpu_dm_set_dmub_outbox_irq_state+0x22/0x30 [amdgpu]
amdgpu_irq_update+0x77/0xa0 [amdgpu]
amdgpu_irq_gpu_reset_resume_helper+0x67/0xa0 [amdgpu]
amdgpu_do_asic_reset+0x219/0x260 [amdgpu]
amdgpu_device_gpu_recover.cold+0x8c5/0xb64 [amdgpu]
amdgpu_debugfs_gpu_recover_show+0x2c/0x60 [amdgpu]
seq_read_iter+0xc2/0x450
? do_anonymous_page+0x22c/0x3b0
seq_read+0xf9/0x140
full_proxy_read+0x5c/0x90
vfs_read+0xaa/0x190
ksys_read+0x67/0xe0
__x64_sys_read+0x1a/0x20
Fixes: effbf6ca7e ("drm/amdgpu/display: remove an old DCN3 guard")
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-and-tested-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
irq service requires changes for DCE6 support
[How]
(v1) DCE6 targets are added replicating existing DCE8 implementation.
due to missing CRTC_VERTICAL_INTERRUPT0_CONTROL registers/masks,
dce/dce_8_0_{d,sh_mask}.h used instead of dce/dce_6_0_{d,sh_mask}.h
(v2) DCE6 headers used adding the necessary vblank irq registers
(INT_MASK and VBLANK_STATUS) and vblank irq masks as implemented
in amdgpu driver.
Add vblank_irq_info_funcs_dce60 with .set and .ack as per commit
b10d51f ("drm/amd/display: Add interrupt entries for VBLANK isr.")
and use it in vblank_int_entry(reg_num) macro definition
(v3) updated due to following kernel 5.3 commit:
4fc4dca ("drm/amd: drop use of drmp.h in os_types.h")
(v4) updated due to following kernel 5.6 commit:
d9e3267 ("drm/amd/display: cleanup of construct and destruct funcs")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mauro Rossi <issor.oruam@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Allowing CONFIG_DRM_AMD_DC_DCN1_0 to be disabled on X86 was an
opportunity for display with Raven Ridge accidentally not working.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The ->info[] array has DAL_IRQ_SOURCES_NUMBER elements so this condition
should be >= instead of > or we could read one element beyond the end of
the array.
Fixes: 4562236b3b ("drm/amd/dc: Add dc display driver (v2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
