diff options
author | Dave Airlie <airlied@linux.ie> | 2010-02-01 00:38:10 -0500 |
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committer | Dave Airlie <airlied@redhat.com> | 2010-03-01 01:20:37 -0500 |
commit | 6a9ee8af344e3bd7dbd61e67037096cdf7f83289 (patch) | |
tree | 07cdb493a790cf45bc473f2fc2ea1b9a166d5191 /drivers/gpu/drm/radeon/radeon.h | |
parent | 9fd1de52945e06ed88a440c99ca92dab74b9b33c (diff) |
vga_switcheroo: initial implementation (v15)
Many new laptops now come with 2 gpus, one to be used for low power
modes and one for gaming/on-ac applications. These GPUs are typically
wired to the laptop panel and VGA ports via a multiplexer unit which
is controlled via ACPI methods.
4 combinations of systems typically exist - with 2 ACPI methods.
Intel/ATI - Lenovo W500/T500 - use ATPX ACPI method
ATI/ATI - some ASUS - use ATPX ACPI Method
Intel/Nvidia - - use _DSM ACPI method
Nvidia/Nvidia - - use _DSM ACPI method.
TODO:
This patch adds support for the ATPX method and initial bits
for the _DSM methods that need to written by someone with
access to the hardware.
Add a proper non-debugfs interface - need to get some proper
testing first.
v2: add power up/down support for both devices
on W500 puts i915/radeon into D3 and cuts power to radeon.
v3: redo probing methods, no DMI list, drm devices call to
register with switcheroo, it tries to find an ATPX method on
any device and once there is two devices + ATPX it inits the
switcher.
v4: ATPX msg handling using buffers - should work on more machines
v5: rearchitect after more mjg59 discussion - move ATPX handling to
radeon driver.
v6: add file headers + initial nouveau bits (to be filled out).
v7: merge delayed switcher code.
v8: avoid suspend/resume of gpu that is off
v9: rearchitect - mjg59 is always right. - move all ATPX code to
radeon, should allow simpler DSM also proper ATRM handling
v10: add ATRM support for radeon BIOS, add mutex to lock vgasr_priv
v11: fix bug in resuming Intel for 2nd time.
v12: start fixing up nvidia code blindly.
v13: blindly guess at finishing nvidia code
v14: remove radeon audio hacks - fix up intel resume more like upstream
v15: clean up printks + remove unnecessary igd/dis pointers
mount debugfs
/sys/kernel/debug/vgaswitcheroo/switch - should exist if ATPX detected
+ 2 cards.
DIS - immediate change to discrete
IGD - immediate change to IGD
DDIS - delayed change to discrete
DIGD - delayed change to IGD
ON - turn on not in use
OFF - turn off not in use
Tested on W500 (Intel/ATI) and T500 (Intel/ATI)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon.h')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index c0356bb193e..a5dfb1557d3 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h | |||
@@ -118,6 +118,10 @@ struct radeon_device; | |||
118 | /* | 118 | /* |
119 | * BIOS. | 119 | * BIOS. |
120 | */ | 120 | */ |
121 | #define ATRM_BIOS_PAGE 4096 | ||
122 | |||
123 | bool radeon_atrm_supported(struct pci_dev *pdev); | ||
124 | int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len); | ||
121 | bool radeon_get_bios(struct radeon_device *rdev); | 125 | bool radeon_get_bios(struct radeon_device *rdev); |
122 | 126 | ||
123 | 127 | ||
@@ -838,6 +842,8 @@ struct radeon_device { | |||
838 | int audio_bits_per_sample; | 842 | int audio_bits_per_sample; |
839 | uint8_t audio_status_bits; | 843 | uint8_t audio_status_bits; |
840 | uint8_t audio_category_code; | 844 | uint8_t audio_category_code; |
845 | |||
846 | bool powered_down; | ||
841 | }; | 847 | }; |
842 | 848 | ||
843 | int radeon_device_init(struct radeon_device *rdev, | 849 | int radeon_device_init(struct radeon_device *rdev, |
@@ -1042,6 +1048,8 @@ extern void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enabl | |||
1042 | extern void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable); | 1048 | extern void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable); |
1043 | extern void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain); | 1049 | extern void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain); |
1044 | extern bool radeon_ttm_bo_is_radeon_bo(struct ttm_buffer_object *bo); | 1050 | extern bool radeon_ttm_bo_is_radeon_bo(struct ttm_buffer_object *bo); |
1051 | extern int radeon_resume_kms(struct drm_device *dev); | ||
1052 | extern int radeon_suspend_kms(struct drm_device *dev, pm_message_t state); | ||
1045 | 1053 | ||
1046 | /* r100,rv100,rs100,rv200,rs200,r200,rv250,rs300,rv280 */ | 1054 | /* r100,rv100,rs100,rv200,rs200,r200,rv250,rs300,rv280 */ |
1047 | struct r100_mc_save { | 1055 | struct r100_mc_save { |