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drm/i915: rename IOSF sideband opcodes according to the spec 

These opcodes are not specific for an endpoint, but are the same for all
endpoints. So rename them accordingly, using the name the VLV2 sideband
HAS uses. Also move the macros to the .c file, since they aren't used
anywhere else.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Imre Deak 2014-05-19 11:41:17 +03:00 committed by Daniel Vetter
parent eba905b297
commit cf63e4a220
2 changed files with 30 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/i915/i915_reg.h
View File

@ -484,9 +484,6 @@
/* See configdb bunit SB addr map */
#define BUNIT_REG_BISOC 0x11
#define PUNIT_OPCODE_REG_READ 6
#define PUNIT_OPCODE_REG_WRITE 7
#define PUNIT_REG_DSPFREQ 0x36
#define DSPFREQSTAT_SHIFT 30
#define DSPFREQSTAT_MASK (0x3 << DSPFREQSTAT_SHIFT)
@ -580,8 +577,6 @@ enum punit_power_well {
* Note: digital port B is DDI0, digital pot C is DDI1
*/
#define DPIO_DEVFN 0
#define DPIO_OPCODE_REG_WRITE 1
#define DPIO_OPCODE_REG_READ 0
#define DPIO_CTL (VLV_DISPLAY_BASE + 0x2110)
#define DPIO_MODSEL1 (1<<3) /* if ref clk b == 27 */

51
drivers/gpu/drm/i915/intel_sideband.c
View File

@ -29,12 +29,21 @@
* IOSF sideband, see VLV2_SidebandMsg_HAS.docx and
* VLV_VLV2_PUNIT_HAS_0.8.docx
*/
/* Standard MMIO read, non-posted */
#define SB_MRD_NP 0x00
/* Standard MMIO write, non-posted */
#define SB_MWR_NP 0x01
/* Private register read, double-word addressing, non-posted */
#define SB_CRRDDA_NP 0x06
/* Private register write, double-word addressing, non-posted */
#define SB_CRWRDA_NP 0x07
static int vlv_sideband_rw(struct drm_i915_private *dev_priv, u32 devfn,
u32 port, u32 opcode, u32 addr, u32 *val)
{
u32 cmd, be = 0xf, bar = 0;
bool is_read = (opcode == PUNIT_OPCODE_REG_READ ||
opcode == DPIO_OPCODE_REG_READ);
bool is_read = (opcode == SB_MRD_NP || opcode == SB_CRRDDA_NP);
cmd = (devfn << IOSF_DEVFN_SHIFT) | (opcode << IOSF_OPCODE_SHIFT) |
(port << IOSF_PORT_SHIFT) | (be << IOSF_BYTE_ENABLES_SHIFT) |
@ -74,7 +83,7 @@ u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr)
mutex_lock(&dev_priv->dpio_lock);
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_PUNIT,
PUNIT_OPCODE_REG_READ, addr, &val);
SB_CRRDDA_NP, addr, &val);
mutex_unlock(&dev_priv->dpio_lock);
return val;
@ -86,7 +95,7 @@ void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val)
mutex_lock(&dev_priv->dpio_lock);
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_PUNIT,
PUNIT_OPCODE_REG_WRITE, addr, &val);
SB_CRWRDA_NP, addr, &val);
mutex_unlock(&dev_priv->dpio_lock);
}
@ -95,7 +104,7 @@ u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg)
u32 val = 0;
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_BUNIT,
PUNIT_OPCODE_REG_READ, reg, &val);
SB_CRRDDA_NP, reg, &val);
return val;
}
@ -103,7 +112,7 @@ u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg)
void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val)
{
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_BUNIT,
PUNIT_OPCODE_REG_WRITE, reg, &val);
SB_CRWRDA_NP, reg, &val);
}
u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr)
@ -114,7 +123,7 @@ u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr)
mutex_lock(&dev_priv->dpio_lock);
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_NC,
PUNIT_OPCODE_REG_READ, addr, &val);
SB_CRRDDA_NP, addr, &val);
mutex_unlock(&dev_priv->dpio_lock);
return val;
@ -124,56 +133,56 @@ u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg)
{
u32 val = 0;
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_GPIO_NC,
PUNIT_OPCODE_REG_READ, reg, &val);
SB_CRRDDA_NP, reg, &val);
return val;
}
void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val)
{
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_GPIO_NC,
PUNIT_OPCODE_REG_WRITE, reg, &val);
SB_CRWRDA_NP, reg, &val);
}
u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg)
{
u32 val = 0;
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_CCK,
PUNIT_OPCODE_REG_READ, reg, &val);
SB_CRRDDA_NP, reg, &val);
return val;
}
void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val)
{
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_CCK,
PUNIT_OPCODE_REG_WRITE, reg, &val);
SB_CRWRDA_NP, reg, &val);
}
u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg)
{
u32 val = 0;
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_CCU,
PUNIT_OPCODE_REG_READ, reg, &val);
SB_CRRDDA_NP, reg, &val);
return val;
}
void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val)
{
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_CCU,
PUNIT_OPCODE_REG_WRITE, reg, &val);
SB_CRWRDA_NP, reg, &val);
}
u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg)
{
u32 val = 0;
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_GPS_CORE,
PUNIT_OPCODE_REG_READ, reg, &val);
SB_CRRDDA_NP, reg, &val);
return val;
}
void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val)
{
vlv_sideband_rw(dev_priv, PCI_DEVFN(2, 0), IOSF_PORT_GPS_CORE,
PUNIT_OPCODE_REG_WRITE, reg, &val);
SB_CRWRDA_NP, reg, &val);
}
u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg)
@ -181,7 +190,7 @@ u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg)
u32 val = 0;
vlv_sideband_rw(dev_priv, DPIO_DEVFN, DPIO_PHY_IOSF_PORT(DPIO_PHY(pipe)),
DPIO_OPCODE_REG_READ, reg, &val);
SB_MRD_NP, reg, &val);
/*
* FIXME: There might be some registers where all 1's is a valid value,
@ -196,7 +205,7 @@ u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg)
void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val)
{
vlv_sideband_rw(dev_priv, DPIO_DEVFN, DPIO_PHY_IOSF_PORT(DPIO_PHY(pipe)),
DPIO_OPCODE_REG_WRITE, reg, &val);
SB_MWR_NP, reg, &val);
}
/* SBI access */
@ -261,13 +270,13 @@ void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg)
{
u32 val = 0;
vlv_sideband_rw(dev_priv, DPIO_DEVFN, IOSF_PORT_FLISDSI,
DPIO_OPCODE_REG_READ, reg, &val);
vlv_sideband_rw(dev_priv, DPIO_DEVFN, IOSF_PORT_FLISDSI, SB_MRD_NP,
reg, &val);
return val;
}
void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val)
{
vlv_sideband_rw(dev_priv, DPIO_DEVFN, IOSF_PORT_FLISDSI,
DPIO_OPCODE_REG_WRITE, reg, &val);
vlv_sideband_rw(dev_priv, DPIO_DEVFN, IOSF_PORT_FLISDSI, SB_MWR_NP,
reg, &val);
}