diff options
| author | Igor Murzov <intergalactic.anonymous@gmail.com> | 2012-01-22 18:47:28 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-01-24 21:34:32 +0400 |
| commit | 211fa4fc4e13492151e698d92b0dff56b29928ec (patch) | |
| tree | 2c2d74ce407bcb26a1b30beb9a95d903b3a912e2 | |
| parent | a3f83ab1a717c0e6c2f59a4cfdaa10707cc35c55 (diff) | |
| download | linux-211fa4fc4e13492151e698d92b0dff56b29928ec.tar.xz | |
drm/radeon: finish getting bios earlier
Return a number of bytes read in radeon_atrm_get_bios_chunk() and
properly check this value in radeon_atrm_get_bios().
If radeon_atrm_get_bios_chunk() read less bytes then were requested,
it means that it finished reading bios data.
Prior to this patch, condition in radeon_atrm_get_bios() was always
equivalent to "if (ATRM_BIOS_PAGE <= 0)", so it was always false,
thus radeon_atrm_get_bios() was trying to read past the bios data
wasting boot time.
On my lenovo ideapad u455 laptop this patch drops bios reading time
from ~5.5s to ~1.5s.
Signed-off-by: Igor Murzov <e-mail@date.by>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atpx_handler.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_bios.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index c666a5b5e505..13ac63ba6075 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -60,7 +60,7 @@ static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios, obj = (union acpi_object *)buffer.pointer; memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length); kfree(buffer.pointer); - return len; + return obj->buffer.length; } bool radeon_atrm_supported(struct pci_dev *pdev) diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index 229a20f10e2b..501f4881e5aa 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -120,7 +120,7 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev) ret = radeon_atrm_get_bios_chunk(rdev->bios, (i * ATRM_BIOS_PAGE), ATRM_BIOS_PAGE); - if (ret <= 0) + if (ret < ATRM_BIOS_PAGE) break; } |