BugLink: https://bugs.launchpad.net/bugs/1796786
HW Engineer's Notes:
During switch from vga->extended, if we set the VGA_TEST_ENABLE and then
hit the VGA_TEST_RENDER_START, then the DCHUBP timing gets updated correctly.
Then vBIOS will have it poll for the VGA_TEST_RENDER_DONE and unset
VGA_TEST_ENABLE, to leave it in the same state as before.
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(backported from commit
bd9bc355be45dd2295ca746aa05b058be4cf94cc)
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Kleber Souza <kleber.souza@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
SR(D2VGA_CONTROL), \
SR(D3VGA_CONTROL), \
SR(D4VGA_CONTROL), \
SR(D2VGA_CONTROL), \
SR(D3VGA_CONTROL), \
SR(D4VGA_CONTROL), \
+ SR(VGA_TEST_CONTROL), \
SR(DC_IP_REQUEST_CNTL), \
BL_REG_LIST()
SR(DC_IP_REQUEST_CNTL), \
BL_REG_LIST()
uint32_t D2VGA_CONTROL;
uint32_t D3VGA_CONTROL;
uint32_t D4VGA_CONTROL;
uint32_t D2VGA_CONTROL;
uint32_t D3VGA_CONTROL;
uint32_t D4VGA_CONTROL;
+ uint32_t VGA_TEST_CONTROL;
/* MMHUB registers. read only. temporary hack */
uint32_t VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32;
uint32_t VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
/* MMHUB registers. read only. temporary hack */
uint32_t VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32;
uint32_t VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
HWS_SF(, DOMAIN7_PG_STATUS, DOMAIN7_PGFSM_PWR_STATUS, mask_sh), \
HWS_SF(, DC_IP_REQUEST_CNTL, IP_REQUEST_EN, mask_sh), \
HWS_SF(, LVTMA_PWRSEQ_CNTL, LVTMA_BLON, mask_sh), \
HWS_SF(, DOMAIN7_PG_STATUS, DOMAIN7_PGFSM_PWR_STATUS, mask_sh), \
HWS_SF(, DC_IP_REQUEST_CNTL, IP_REQUEST_EN, mask_sh), \
HWS_SF(, LVTMA_PWRSEQ_CNTL, LVTMA_BLON, mask_sh), \
- HWS_SF(, LVTMA_PWRSEQ_STATE, LVTMA_PWRSEQ_TARGET_STATE_R, mask_sh)
+ HWS_SF(, LVTMA_PWRSEQ_STATE, LVTMA_PWRSEQ_TARGET_STATE_R, mask_sh), \
+ HWS_SF(, VGA_TEST_CONTROL, VGA_TEST_ENABLE, mask_sh),\
+ HWS_SF(, VGA_TEST_CONTROL, VGA_TEST_RENDER_START, mask_sh)
#define HWSEQ_REG_FIELD_LIST(type) \
type DCFE_CLOCK_ENABLE; \
#define HWSEQ_REG_FIELD_LIST(type) \
type DCFE_CLOCK_ENABLE; \
type DOMAIN7_PGFSM_PWR_STATUS; \
type DCFCLK_GATE_DIS; \
type DCHUBBUB_GLOBAL_TIMER_REFDIV; \
type DOMAIN7_PGFSM_PWR_STATUS; \
type DCFCLK_GATE_DIS; \
type DCHUBBUB_GLOBAL_TIMER_REFDIV; \
- type DENTIST_DPPCLK_WDIVIDER;
+ type DENTIST_DPPCLK_WDIVIDER; \
+ type DENTIST_DISPCLK_WDIVIDER; \
+ type VGA_TEST_ENABLE; \
+ type VGA_TEST_RENDER_START;
struct dce_hwseq_shift {
HWSEQ_REG_FIELD_LIST(uint8_t)
struct dce_hwseq_shift {
HWSEQ_REG_FIELD_LIST(uint8_t)
REG_WRITE(D2VGA_CONTROL, 0);
REG_WRITE(D3VGA_CONTROL, 0);
REG_WRITE(D4VGA_CONTROL, 0);
REG_WRITE(D2VGA_CONTROL, 0);
REG_WRITE(D3VGA_CONTROL, 0);
REG_WRITE(D4VGA_CONTROL, 0);
+
+ /* HW Engineer's Notes:
+ * During switch from vga->extended, if we set the VGA_TEST_ENABLE and
+ * then hit the VGA_TEST_RENDER_START, then the DCHUBP timing gets updated correctly.
+ *
+ * Then vBIOS will have it poll for the VGA_TEST_RENDER_DONE and unset
+ * VGA_TEST_ENABLE, to leave it in the same state as before.
+ */
+ REG_UPDATE(VGA_TEST_CONTROL, VGA_TEST_ENABLE, 1);
+ REG_UPDATE(VGA_TEST_CONTROL, VGA_TEST_RENDER_START, 1);
}
static void dpp_pg_control(
}
static void dpp_pg_control(