diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 27 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r300.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r420.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r520.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rs400.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rs600.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rs690.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rv515.c | 2 |
9 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 5aa299527317..5d14732dc284 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -3809,6 +3809,31 @@ void r100_fini(struct radeon_device *rdev) rdev->bios = NULL; } +/* + * Due to how kexec works, it can leave the hw fully initialised when it + * boots the new kernel. However doing our init sequence with the CP and + * WB stuff setup causes GPU hangs on the RN50 at least. So at startup + * do some quick sanity checks and restore sane values to avoid this + * problem. + */ +void r100_restore_sanity(struct radeon_device *rdev) +{ + u32 tmp; + + tmp = RREG32(RADEON_CP_CSQ_CNTL); + if (tmp) { + WREG32(RADEON_CP_CSQ_CNTL, 0); + } + tmp = RREG32(RADEON_CP_RB_CNTL); + if (tmp) { + WREG32(RADEON_CP_RB_CNTL, 0); + } + tmp = RREG32(RADEON_SCRATCH_UMSK); + if (tmp) { + WREG32(RADEON_SCRATCH_UMSK, 0); + } +} + int r100_init(struct radeon_device *rdev) { int r; @@ -3821,6 +3846,8 @@ int r100_init(struct radeon_device *rdev) radeon_scratch_init(rdev); /* Initialize surface registers */ radeon_surface_init(rdev); + /* sanity check some register to avoid hangs like after kexec */ + r100_restore_sanity(rdev); /* TODO: disable VGA need to use VGA request */ /* BIOS*/ if (!radeon_get_bios(rdev)) { diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 7e81db5eb804..3c34da0c899a 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -1377,6 +1377,8 @@ int r300_init(struct radeon_device *rdev) /* Initialize surface registers */ radeon_surface_init(rdev); /* TODO: disable VGA need to use VGA request */ + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* BIOS*/ if (!radeon_get_bios(rdev)) { if (ASIC_IS_AVIVO(rdev)) diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c index e6c89142bb4d..59f7bccc5be0 100644 --- a/drivers/gpu/drm/radeon/r420.c +++ b/drivers/gpu/drm/radeon/r420.c @@ -343,6 +343,8 @@ int r420_init(struct radeon_device *rdev) /* Initialize surface registers */ radeon_surface_init(rdev); /* TODO: disable VGA need to use VGA request */ + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* BIOS*/ if (!radeon_get_bios(rdev)) { if (ASIC_IS_AVIVO(rdev)) diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c index 34330df28483..213e2e0027a3 100644 --- a/drivers/gpu/drm/radeon/r520.c +++ b/drivers/gpu/drm/radeon/r520.c @@ -230,6 +230,8 @@ int r520_init(struct radeon_device *rdev) radeon_scratch_init(rdev); /* Initialize surface registers */ radeon_surface_init(rdev); + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* TODO: disable VGA need to use VGA request */ /* BIOS*/ if (!radeon_get_bios(rdev)) { diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index c0bbaa64157a..a5aff755f0d2 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -113,6 +113,7 @@ void r100_wb_fini(struct radeon_device *rdev); int r100_wb_init(struct radeon_device *rdev); int r100_cp_reset(struct radeon_device *rdev); void r100_vga_render_disable(struct radeon_device *rdev); +void r100_restore_sanity(struct radeon_device *rdev); int r100_cs_track_check_pkt3_indx_buffer(struct radeon_cs_parser *p, struct radeon_cs_packet *pkt, struct radeon_bo *robj); diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c index 9e4240b3bf0b..c178481101e9 100644 --- a/drivers/gpu/drm/radeon/rs400.c +++ b/drivers/gpu/drm/radeon/rs400.c @@ -480,6 +480,8 @@ int rs400_init(struct radeon_device *rdev) /* Initialize surface registers */ radeon_surface_init(rdev); /* TODO: disable VGA need to use VGA request */ + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* BIOS*/ if (!radeon_get_bios(rdev)) { if (ASIC_IS_AVIVO(rdev)) diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 27d2e706c650..c5760921d166 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -879,6 +879,8 @@ int rs600_init(struct radeon_device *rdev) radeon_scratch_init(rdev); /* Initialize surface registers */ radeon_surface_init(rdev); + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* BIOS */ if (!radeon_get_bios(rdev)) { if (ASIC_IS_AVIVO(rdev)) diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index 23676b659e65..3dde54d57d09 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -707,6 +707,8 @@ int rs690_init(struct radeon_device *rdev) radeon_scratch_init(rdev); /* Initialize surface registers */ radeon_surface_init(rdev); + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* TODO: disable VGA need to use VGA request */ /* BIOS*/ if (!radeon_get_bios(rdev)) { diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index 7d9a7b0a180a..3f04f735deae 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -468,6 +468,8 @@ int rv515_init(struct radeon_device *rdev) /* Initialize surface registers */ radeon_surface_init(rdev); /* TODO: disable VGA need to use VGA request */ + /* restore some register to sane defaults */ + r100_restore_sanity(rdev); /* BIOS*/ if (!radeon_get_bios(rdev)) { if (ASIC_IS_AVIVO(rdev)) |